Remote Terminal Installation and User Manual 1027144– 0001 Draft – Revision D.
For important standards compliance information, see appendix B. Copyright 1999 Hughes Network Systems, a Hughes Electronics Corporation company All rights reserved. This publication and its contents are proprietary to Hughes Network Systems, a Hughes Electronics Corporation company. No part of this publication may be reproduced in any form or by any means without the written permission of Hughes Network Systems, 11717 Exploration Lane, Germantown, Maryland 20876.
Contents About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Important safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v vii 1 Installation summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 1.1 Remote terminal (RT) reference drawing . . . . . . . . . . . . . . . . . . . . . 1.2 Installation summary and checklist . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Installing ODUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 6.14 6.15 6–2 6–4 6–5 6–6 6–10 6–12 6–15 6–17 6–18 6–19 6–21 6–23 6–25 6–26 6–28 7 Commissioning the RT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–1 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 Prerequisites for commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connecting the IFL to the CCM (IDU) . . . . . . . . . . .
10.7 Replacing the IFL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.8 Dismantling an RT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–14 10–16 A Acronyms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A- 1 B Standards compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–1 B.1 Outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi RT installation 1027144–0001 Draft – Revision D.
About this manual This manual provides instructions for installing and using AIReach Broadband point–to–multipoint remote terminal (RT) equipment. User qualifications This manual is intended for use by qualified equipment installers.
Revision record viii About this manual Revision Date of issue Scope A April 21, 1999 Released for UL approval. B June 8, 1999 Added new and updated information. C August 9, 1999 RT installation Added troubleshooting and maintenance information. 1027144–0001 Draft – Revision D.
Important safety information For your own safety and protection, read this safety section carefully. Keep this safety information where you can refer to it if necessary. Types of warnings used in this manual This section introduces the types of warnings used in this manual to alert you to possible safety hazards that could be encountered while installing AIReach Broadband equipment.
Warnings appearing in this manual This manual includes the following safety warnings: DANGER If you have to walk on a roof or use a ladder to access an installation site or equipment, follow these precautions to prevent personal injury or death: • Do not walk near the edge of the roof. • Watch out for overhead power lines. Stay at least 6 meters (20 feet) from power lines. • Walk only on sound roof structures.
WARNING Potential radio frequency (RF) hazard: • Keep away from the front of the outdoor unit (ODU) antenna while the ODU is operating. Note that you cannot tell from outward appearance whether the ODU is operating or not. • Be careful with respect to the ODU you are installing and ODUs that may already be operating in the installation area. Failure to observe these warnings could result in injury to eyes or other personal injury.
WARNING To avoid the risk of electric shock, remove power from the power circuit before connecting power cables to the IDU power supply. WARNING The IDU chassis must be solidly bonded to a low–impedance ground (earth) source. To avoid the risk of electric shock and/or equipment damage, do not apply power to the IDU chassis without a ground reference. WARNING To avoid the risk of electric shock, make sure the dc power source breaker is off before installing a remote power–off circuit.
Chapter 1 RT INSTALLATION Installation summary This chapter includes: • Remote terminal (RT) reference drawing – page 1–2 • RT installation summary and checklist – page 1–3 The installation summary previews the entire RT installation process and serves as a quick reference. For detailed information, see chapters 2 through 8. 1027144–0001 Draft – Revision D.
1.1 Remote terminal (RT) reference drawing Figure 1-1 is provided as a reference. It illustrates the main RT components: • Outdoor unit (ODU) • Intrafacility link (IFL) • Indoor equipment RT ODU IFL IDU RT indoor equipment rt011 Figure 1-1 RT equipment 1–2 Installation summary RT installation 1027144–0001 Draft – Revision D.
1.
Install the mast mount – page 5–4 Install the antenna mount – page 6–10 Attach the antenna to the mount – page 6–12 Adjust the antenna azimuth – page 6–15 Adjust the antenna elevation – page 6–17 Install the mechanical attenuator (if required) – page 6–19 Attach the transceiver to the antenna – page 6–21 Ground the ODU – page 6–23 Connect the IFL to the ODU – page 6–25 Connect the IFL to the CCM (IDU) – page 7–3 Point the antenna (with voltmeter) – page 7–10 Tighten the mount – page 7–11 Remove the installa
Chapter 2 RT INSTALLATION Prerequisites This chapter discusses steps that are required prior to installation of AIReach Broadband equipment. It includes: • Reviewing site data and plans – page 2–1 • Planning ahead for building access – page 2–2 • Tools needed for installation – page 2–3 • Prerequisites for commissioning – page 2–7 2.
2.2 Plan ahead for building access Before you go to the installation site, make sure you have all necessary information (such as contact names and phone numbers) for accessing all parts of the building you will need to visit (roof, equipment rooms—which may be in the basement), and other locations. This information should be available in the Site Data Record, which is completed as part of the site survey. Recommendations: • Know who to contact for assistance (name, phone number, working hours).
2.3 Tools needed for installation To install and commission AIReach Broadband remote terminal equipment, you need the tools listed in table 2-1 . You may need general–purpose tools in addition to the specific tools listed here. Table 2-1 Tools required for RT installation (includes tools for IFL installation, antenna pointing, and initial testing) √ Item Purpose (or other comments) Ladder May or may not be required; depends on building Rope To hoist tools and equipment up ladders.
Table 2-1 Tools required for RT installation – Cont’d. (includes tools for IFL installation, antenna pointing, and initial testing) √ Item Purpose (or other comments) Diagonal cutters (wire cutters) Flush mount cutters Excelta CX–1–78–1 cable stripping tool Manufacturer: Excelta Corp.
Table 2-1 Tools required for RT installation – Cont’d. (includes tools for IFL installation, antenna pointing, and initial testing) √ Item Purpose (or other comments) Digital voltmeter For pointing and testing dc voltage measurement accuracy: 0.3% Test cable terminated with F–connector and alligator clips Used to connect voltmeter to ODU for antenna pointing Detailed local map Used to locate the HT. Must show true north, streets, buildings, and landmarks.
Figure 2-1 shows the specialized tools included in the ODU installer tool kit (HNS 1024668–0024). These tools can also be ordered separately: Temporary installation collar with clamp – HNS 1024668–0022; one azimuth/elevation adjuster (interchangeable) – HNS 1024668–0023. These tools are removed after mount installation and pointing so they can be reused for subsequent installations.
2.4 Prerequisites for commissioning You will not be able to commission the RT (as detailed in chapter 7) unless the Element Management System (EMS) is operational. Specific requirements for commissioning are: The EMS hardware and software must be installed and operational. The EMS database must be loaded and operational. The EMS operator has to enter the hub MAC address into the EMS database. The hub and HT are installed and operational. The HT must be properly aligned.
RT INSTALLATION Chapter 3 Installing indoor RT equipment This chapter includes: • Rack grounding • Installing indoor units (IDUs) • Power supplies – page 3–8 • Installing the CCM – page 3–24 • CCM power–on test – page 3–26 • SSIs – page 3–28 • Installing expansion IDUs (EIDUs) – page 3–34 For IDU standards compliance information, see appendix B (page B–3). All of the tasks in this chapter are done inside. 1027144–0001 Draft – Revision D.
3.1 Rack grounding If the RT IDU will be mounted in a rack, the rack must be grounded, as shown in figure 3-1: 1. Run a ground wire from the rack location to the master ground bar in the equipment room. This wire must be No. 2 AWG, green, stranded, and shielded. 2. Ground the rack by connecting a No. 6 AWG wire from the rack to the No. 2 AWG ground wire. Use a 2–hole lug to connect the No. 6 AWG wire to the rack. Remove paint and apply anti–oxidant as shown in the illustration. No.
3.2 Installing IDUs Figures 3-2 and 3-3 show the RT indoor unit (IDU), which houses the channel and control module (CCM) and service–specific interfaces (SSIs). The IDU chassis is shipped with the power supply installed, but the CCM and SSIs are not installed. For IDU standards compliance information, see appendix B (page B–3). IDU components Channel and control module (CCM) Figures 3-2 and 3-3 identify the main IDU components.
Channel and control module (CCM) IFL interface Auxiliary IF port Maintenance port Liquid crystal display (LCD) Control pushbuttons (for LCD) RT CCM TM BROADBAND ENTER 1 2 SSI slots 3 4 5 rt050 Thumbscrew Service-specific interface (SSI) Blank panel DC power supply Figure 3-3 RT IDU with dc power supply IDU chassis types Three IDU chassis types are available, each with a different power supply option: Table 3-1 IDU types IDU type HNS part number IDU chassis with ac power supply 1026
Mounting options The IDU can be used on a tabletop or installed in a 19–inch (48.3–centimeter) rack. With optional adapter brackets, the IDU can also be installed in a 23–inch (58.4–centimeter) rack. Rack mounting Safety guidelines Observe these guidelines from Underwriters Laboratories Inc. (UL) when you install IDU chassis in a rack (any rack): • Make sure the power requirements of the IDU chassis plus • • • • • 1027144–0001 Draft – Revision D.
Rack mounting instructions To mount the IDU chassis in a rack, you need the rack mounting brackets included in HNS kit 1027191–0001. This kit includes two brackets and six Phillips SEMS screws for attaching the bracket to the IDU. To mount the IDU chassis in a rack, follow these steps: 1. Attach the rack mounting brackets as shown in figure 3-4. Be sure to use the correct sets of holes (front or midpoint) for each bracket, as indicated in figure 3-4. Attach bracket here for enclosed rack.
2. Screw the two upper mounting screws into the rack (one on each side), at the desired installation height. Refer to figure 3-5. Do not tighten the screws all the way—this allows you to hang the chassis by the top “teardrop” holes on the brackets (in step 3). (The four mounting screws that screw into the rack should be provided with the rack.) Leave part of the upper mounting screws exposed so you can hang the brackets on them. Front hb033 Rack Figure 3-5 Installing the IDU chassis in a rack 3. 4.
3.3 Power supplies Power supply options The IDU power supply is installed in the chassis at the factory. However, you need to make sure the power supply is grounded and connect power to the power supply. Detailed instructions for these steps follow. The IDU chassis may be equipped with an ac, dc, or dual (ac or dc) power supply, depending on the local power environment. In the following sections, make sure you follow all instructions for the type of power supply your IDU chassis has.
Selecting ac or dc power Follow these instructions to set the power supply for ac or dc operation: To use the dual power supply with ac power: Make sure the switch is in the ac position; then follow the instructions below for ac power supplies. Note: The ac/dc switch is recessed to prevent accidental switching. Use a flathead screwdriver to change the switch position.
Labels on dual power supply A label on the dual ac or dc power supply warns: WARNING MULTIPLE POWER CONNECTORS. DISCONNECT BOTH AC & DC POWER BEFORE SERVICING. Servicing personnel must heed this warning. Note that the IDU and power supply should be serviced only by HNS. A second label on the dual ac or dc power supply advises: CAUTION THIS EQUIPMENT HAS A CONNECTION BETWEEN THE EARTHED CONDUCTOR OF THE D.C. SUPPLY CIRCUIT AND THE EARTHING CONDUCTOR.
AC power supply IDU chassis with an ac power supply (figure 3-7) or dual ac or dc power supply are equipped with a recessed IEC–320–C13 connector and a 7.5–foot (2.3–meter) power cable (HNS 9003024–0013). The power cable includes a NEMA 5–15–P plug to connect to the power source (receptacle). The cable is rated at 125 Vac, 10 amperes, and is equipped with an internal ground (earth) conductor. The primary input requirements for the ac power supply are: Voltage: Current: Frequency: 100 – 240 Vac 6.
Grounding the ac IDU chassis Important: In the United States and some international markets, the required ground bond is provided by the grounding conductor in the cable and ac service conductors. If grounding is provided through the grounding conductor and service conductors, no additional grounding is required. In environments where ac grounding conductors are not available, a separate bonding conductor is required. If a separate bonding conductor is required, ground the ac power supply as follows: 1.
Connecting ac power WARNING The IDU chassis must be solidly bonded to a low–impedance ground (earth) source. To avoid the risk of electric shock and/or equipment damage, do not apply power to the IDU chassis without a ground reference. CAUTION If the ODU and lightening arrestor are not connected to the IFL, do not power on the IDU chassis without first making sure the IFL is not connected to the IDU chassis. Failure to observe this instruction could result in damage to the equipment.
DC power supply Figure 3-9 shows an IDU chassis with a dc power supply. A power cable is not supplied with the dc IDU chassis because cable requirements vary, depending on where the chassis will be used. The power input requirement for the dc power supply (and dc portion of the dual ac or dc power supply) is –42 to –56 Vdc.
Grounding the dc IDU chassis Ground IDU chassis with a dc power supply as follows: 1. Use a 2–hole lug to connect a No. 14 AWG ground wire to the ground terminals on the front of the power supply (figure 3-10). DC power supply hb049 Ground terminals Figure 3-10 Ground terminals on dc power supply 2. Connect the other end of the ground wire to the rack ground bar. If the IDU chassis is not rack mounted, connect the ground wire to a ground point such as a water pipe or building steel.
CAUTION If the ODU and lightening arrestor are not connected to the IFL, do not power on the IDU chassis without first making sure the IFL is not connected to the IDU chassis. Failure to observe this instruction could result in damage to the equipment. To connect power cables from the dc power source (usually a rectifier) to the dc power supply, follow the steps below. 1. 2. 3. Measure the voltage level of the power source to verify it can accommodate the total IDU and ODU power requirements.
• Follow steps 5 through 14 to insert the power cable wires into the power supply terminal block: Unplug the terminal block from the power supply socket. (-)48VDC (+)RETURN 5. Power supply Plug-in terminal block hb108 6. Strip both wires from the power source to about ¼ inch (6 centimeters) from the end. Note: Wires used with the terminal block must meet these specifications: 7. 8. Composition Solid or stranded Wire cross–sectional area 0.2 to 2.
9. 10. Lay the terminal block on a flat surface, with the wire entry holes facing up. Use a small, flat–blade screwdriver (or similar tool) to press in the tab above the wire entry hole on the terminal block. Hold the tab in. Terminal block with one wire inserted Press and hold tab to insert wire. Wire entry holes hb004 11. While holding the tab in, insert the stripped wire end.
Insert the terminal block through the conduit opening and guide it up to the socket. (-)48VDC (+)RETURN 15. Socket Conduit opening hb051 Terminal block Plug the terminal block into the power supply terminal socket. ( - ) 4 8 V D C (+)RETURN 16. Socket Terminal block hb046 1027144–0001 Draft – Revision D.
17. 18. 19. Snap the strain relief bushing into the conduit opening. Tighten the screw on the strain relief bushing just enough to hold the wires in place. Do not overtighten. Replace the protective plate and tighten the screws. • This completes the power connections. Powering off the dc IDU The chassis does not have a power off/on switch. In normal operation, power is always on.
If the rectifier–to–chassis power circuit does not include a suitable circuit breaker, you can satisfy the disconnect requirement by including a remote power–off switch as shown in figures 3-11 and 3-12. If the power circuit already includes a suitable circuit breaker, skip this section. 1 2 3 4 5 IDU chassis DC power cable Conduit Remote power-off circuit Rectifier hb006 Figure 3-11 The remote power–off circuit (if needed) is installed between the IDU chassis and dc power source.
WARNING To avoid the risk of electric shock, make sure the dc power source breaker is off before installing a remote power–off circuit. Use a continuity tester to verify that power is off. To install a power–off circuit (if needed), follow these steps: 1. Make sure the rectifier breaker switch is off. 2. Install a UL–approved terminal block inside a UL–approved electrical junction box as shown in figure 3-12.
If you are installing a single–pole remote power–off switch, use a single–pole, single–throw switch rated at 60 Vdc, 15 amperes (minimum): Install jumper 1. In place of jumper 2, wire the switch between the (–) terminal from the rectifier and the (–) terminal from the IDU chassis. • If you installed a switch, follow steps 4 through 9 to test the switch: 4. Place the remote power–off switch in the open position. 5. Replace the junction box cover. 6. Turn on the dc breaker. 7.
3.4 Installing the CCM A channel and control module (CCM) must be installed in the top slot (slot 1) of the IDU chassis. For an RT IDU, the CCM must be a CCM RT (HNS 1027181–0002), as shown in figure 3-13.
1. Wrap the ESD strap snugly around your wrist and connect the alligator clip to one of the ground terminals on the IDU chassis power supply. hb060 2. 3. Remove the CCM from its ESD protective packaging. Retain the packaging in case it is necessary to return the CCM for repair. Slide the module into the guides on each side of the top chassis module slot (slot 1) and push it firmly into place until the CCM front panel is flush with the front of the chassis.
CCM power–on test (SUDS) Test the CCM for proper operation, as follows: 1. Apply power to the IDU chassis. 2. Observe the LEDs on the CCM front panel: - Green – CCM startup and normal operation - Red – Failure 3. Also observe the CCM startup diagnostics (SUDS) on the CCM’s front panel LCD: SUDS start on powerup. While they run, the CCM front panel shows the following messages, in the sequence shown. Equipment function is normal when you see the messages shown below and no failure messages.
Serial port 2 test SUDS Ser 2 Test Serial port 2 is tested. Successful test completion This message indicates that startup diagnostics have successfully completed: SUDS Completed Failure indication If a failure occurs during any of the tests listed above, the LCD message sequence stops. The LCD shows the test that failed on the first line and FAILED (flashing) on the second line, as in the example below. SUDS Ser 2 Test FAILED This screen indicates that serial port 2 failed diagnostics.
3.5 SSIs Service–specific interface modules (SSIs) provide interfaces to support specific network services. SSI types used depend on the needs of the customer network.
Pin 1 - R1 signal (Ring - RX in) 1 Pin 2 - T1 signal (Tip - RX in) 2 Pin 4 - R signal (Ring - TX out) 4 5 Pin 5 - T signal (Tip - TX out) OK TEST ALARM Pins not identified are not used. rt007 Figure 3-16 RJ–48X connector pinouts DS3–TDM The DS3–TDM SSI, shown in figure 3-17, provides a structured or transparent D3 service link between the HT and RT.
Universal–DS1 The Universal–DS1 SSI, shown in figure 3-18, provides a link to the HT that can carry up to eight T1 or eight E1 lines. LEDs indicate SSI status UNIVERSAL SSI STATUS ALARM OK PORT 1 PORT 2 PORT 3 PORT 4 PORT 1 PORT 2 PORT 3 PORT 4 rt047 RJ-48X connectors RJ-48X connectors Figure 3-18 Universal–DS1 SSI The maximum cable length for a Universal–DS1 SSI is 655 feet (199.6 meters). DS3–ATM The DS3–ATM SSI, shown in figure 3-19, provides an ATM link between the RT and the HT.
DS3–transparent The DS3–transparent SSI, shown in figure 3-20, supports an unencumbered DS3 point–to–point service. The DS3 framing structure, clocking, and control bits are transported without visibility to the AIReach Broadband system. LEDs indicate status of each link DS 3 TRNSP SSI STATUS Tx ALARM ALARM OK OK Rx T0006023 BNC Rx connector BNC Tx connector LEDs indicate SSI status Figure 3-20 DS3–transparent SSI The maximum cable length for a DS3–transparent SSI is 450 feet (137.2 meters).
Installing SSIs Follow these steps to install SSIs: CAUTION To maintain proper airflow and protect against RF interference, keep any empty chassis slots covered with blank panels. 1. If a blank panel is installed in the slot where you will install the SSI, loosen the thumbscrews on the blank panel and remove it. Keep the blank panel for future use. CAUTION Always wear a new or recently tested electrostatic discharge (ESD) wrist strap (figure 3-21) when handling circuit modules.
hb060 3. 4. 5. Remove the SSI from its ESD protective packaging. Retain the packaging in case it is necessary to return the SSI for repair. Slide the SSI into the guides on each side of the chassis SSI slot and push it firmly into place until the front of the SSI is flush with the front of the IDU chassis. When the SSI receives power through contact with the IDU backplane, it automatically initiates startup diagnostics. Watch the LEDs to see the diagnostic results: SSI LED indications: 6. 7. 8. 9.
3.6 Installing expansion IDUs (EIDUs) If more than 4 SSIs are required at a single site, or SSIs need to be physically distributed (on different floors, for example), one or more expansion IDUs (EIDUs) may be installed, at remote sites only. A single IDU can accommodate up to 4 EIDUs (16 SSI slots) as shown in figure 3-22. EIDUs are linked to the IDU with fiber extender modules (FEMs). These modules use multimode fiber to carry both ATM and TDM traffic.
Mounting options The EIDU can be used on a tabletop or installed in a 19–inch (48.3–centimeter) rack. With optional adapter brackets, the EIDU can also be installed in a 23–inch (58.4–centimeter) rack. Note: HNS does not provide a rack for EIDU installation. Rack mounting If you are installing the EIDU in a rack, refer to the prerequisites, safety guidelines, and instructions provided on pages 3–4 through 3–7.
IDU FEM Figure 3-25 shows an IDU FEM. LEDs indicate status of each link IDU FEM STATUS ALARM ALARM OK OK Tx rt061 Rx LEDs indicate FEM status SC connectors Figure 3-25 IDU FEM EIDU FEM Figure 3-26 shows the EIDU FEM. LEDs indicate status of each link EIDU FEM STATUS Tx ALARM ALARM OK OK Rx rt062 LEDs indicate FEM status SE connectors Figure 3-26 EIDU FEM 3–36 Installing indoor RT equipment RT installation 1027144–0001 Draft – Revision D.
Installing FEMs Follow these steps to install an IDU FEM or EIDU FEM: 1. If a blank panel is installed in the slot where you will install the FEM, loosen the thumbscrews on the blank panel and remove it. CAUTION Always wear a new or recently tested electrostatic discharge (ESD) wrist strap (figure 3-27) when handling circuit modules. Failure to use a wrist strap may result in damage to components. Wrist strap rt063 Connect to IDU or EIDU chassis ground terminal. Figure 3-27 ESD wrist strap 2. 3.
4. Slide the FEM into the guides on each side of the chassis slot and push it firmly into place until the front of the FEM is flush with the front of the chassis. SSI slots IDU FEM IDU CCM slot EIDU FEM 5. 6. 7. 3–38 Installing indoor RT equipment rt064 EIDU Tighten the thumbscrews at each end of the FEM. To tighten the thumbscrews, push them toward the IDU chassis and turn them clockwise. To fully tighten the thumbscrews, use a Phillips screwdriver. Repeat steps 1 through 5 for each FEM.
Chapter 4 RT INSTALLATION Installing IFL cables This chapter includes: • Roof and ladder safety – page 4–2 • Handling materials – page 4–3 • IFL cable specifications– page 4–4 • Overview: IFL plan – page 4–5 • Determining the IFL cable route – page 4–6 • Penetrating the roof – page 4–7 • Installing the penetration sleeve – page 4–8 • Installing the IFL cable inside the building – page 4–9 • Installing the remote lightning arrestor – page 4–10 • Installing the IFL cable on the roof – page 4–14 • Testing th
4.1 Roof and ladder safety DANGER If you have to walk on a roof or use a ladder to access an installation site or equipment, follow these precautions to prevent personal injury or death: • Do not walk near the edge of the roof. • Watch out for overhead power lines. Stay at least 6 meters (20 feet) from power lines. • Walk only on sound roof structures. • Do not work on a roof or ladder in high wind, rain, lightning, or other adverse weather conditions.
4.2 Handling materials Depending on the installation location, you may have to hoist the mount kit, ballast (concrete blocks), IFL cable, and tools to the rooftop as shown in figure 4-1. Using two or more people for this task will save considerable time.
4.3 IFL cable specifications The intrafacility (IFL) cable specified for AIReach Broadband installations is a Type 3 VSAT coaxial cable, HNS 1010812–0001 (1,000–foot / 305–meter spool). This cable is non plenum, CMG UL/C (UL) approved. An acceptable alternative is LMR–400 plenum cable (available from Times Microwave Systems, Wallingford, CT). For additional specifications, see the Hub and Remote Terminal Site Preparation Guide.
4.4 Overview: IFL plan Figure 4-2 shows the IFL and required lightning arrestor. The lightning arrestor is installed on the roof at the IFL building penetration point.
Detailed instructions for installing the IFL and lightning arrestor are included in the following sections. 4.5 Determining the IFL cable route Determine the IFL cable route, from ODU to IDU. Consider the guidelines below. Every building and rooftop is unique; for this reason, some of these guidelines may not apply to your installation: • The most important considerations are the ODU and IDU • • • • • • • • locations and the building entry point.
4.6 Penetrating the roof Follow the steps below to drill a hole for the IFL cable only when there is not an existing entry you can use. 1. Go to the roof. 2. Determine where the IFL cable will penetrate the roof. Refer to the RT rooftop drawings. Before you drill, consider these guidelines: • Important: Do not penetrate any part of the building structure without first making sure you have the explicit permission of the customer and building owner.
4.7 Installing the penetration sleeve The IFL cable must be routed through a penetration sleeve before it is connected to the lightning arrestor. The lightning arrestor is attached to the penetration sleeve after cable installation. 1. Use twelve screws to attach the remote penetration sleeve (sleeve and coupling) to the building surface at the building penetration point. See figure 4-4. The type of screw used depends on the roof thickness and surface composition.
4.8 Installing the IFL cable inside the building You install the IFL cable in two segments, as shown in figure 4-2 (page 4–5). To install the first cable segment—from the IDU chassis location to the lightning arrestor—follow the instructions and guidelines below. Because every building has unique features, it is not possible to give exact instructions. 1. 2. Measure the cable run length from the IDU chassis location to the lightning arrestor location (IFL building entry point).
4.9 Installing the remote lightning arrestor All AIReach Broadband IFL cables must connect to a grounded lightning arrestor (provided by HNS) at the building penetration point, as shown in figure 4-2 (page 4–5) and explained in this section. A single remote lightning arrestor can be used for IFL cables for two RTs. WARNING To help avoid death, injury, or damage from a lightning strike, you must install a lightning arrestor where the IFL enters the building.
Connecting the IFL cable to the RF arrestor Follow these steps to route the IFL cable through the lightning arrestor and then connect the cable to the RF arrestor: 1. Attach an RF arrestor to the arrestor body with a 3/4–inch (19–millimeter) nut. See figure 4-6. Location of second arrestor, if 2 IFLs are installed. 3/4-inch (19-millimeter) nut rt034 Figure 4-6 Attaching the arrestor to the arrestor body 2.
rt036 Location of second arrestor, if 2 IFLs are installed. Figure 4-8 Connecting the IFL cable to the arrestor 5. 6. Attaching the arrestor to the penetration sleeve Working from inside the arrestor body, use the Sealcon custom wrench (Sealcon part number 1.500.4200.04) to tighten the restraining fitting to 44.2 inch–pounds. Repeat steps 1 through 5 if you are installing a second IFL cable. Attach the lightning arrestor to the penetration sleeve: 1. 2.
Grounding the remote lightning arrestor Follow these steps to ground the lightning arrestor: 1. Ground bar Connect one end of the ground cable (No. 6 AWG or greater, green) to the lightning arrestor ground bar, as shown in figure 4-10. Single-hole compression lug Ground cable No. 6 AWG or greater To ground point rt051 Figure 4-10 Remote lightning arrestor grounding connections 2. Route the ground cable to the ground point.
4.10 Installing the IFL cable on the roof Connecting to the lightning arrestor To install the second IFL cable segment—from the lightning arrestor to the ODU—follow the instructions and guidelines below. Because every rooftop has unique features, it is not possible to give exact instructions. Connect the IFL to the lightning arrestor as follows: 1. 2. Measure the cable run length from the lightning arrestor to the ODU.
5. Connect the IFL cable to the RF arrestor, as shown in figure 4-11. You connect the other end of the cable to the ODU later, after you install the ODU. rt040 Ground wire To ODU IFL N connector N connector RF arrestor Figure 4-11 Connecting the IFL to the RF arrestor 1027144–0001 Draft – Revision D.
Do not apply weatherproofing compound or tape until the RT has been tested and commissioned. Weatherproofing is covered in section 8.1. Testing the IFL cable Test the IFL cable and connectors as follows: 1. 2. 4–16 Installing IFL cables Check each connector: Use a multimeter or continuity tester to check for continuity (a short circuit) between the center conductor and the connector body (outer shell).
Finishing the cable installation After running the cable, finish the cable installation as follows: 1. Support the cable above the roof surface with a cable trough or wood blocks approximately 4 inches by 4 inches by 4 inches (10 centimeters by 10 centimeters by 10 centimeters): hb010 2. 3. 4. Tie down cable runs on the roof and at the IDU location with tie–wraps. Seal the IFL rooftop entry point with weatherproofing caulk.
Chapter 5 RT INSTALLATION Installing mast mounts This chapter includes: • Overview – page 5–2 • ODU location – page 5–3 • Roof types – page 5–3 • Mast mount types – page 5–3 • Standard nonpenetrating mount – page 5–4 • Existing structures – page 5–11 DANGER Do not work on a ladder or roof without first reading the safety warnings on page x of this manual. Failure to observe these warnings could result in personal injury or death. 1027144–0001 Draft – Revision D.
5.1 Overview Typically, the installers assemble a nonpenetrating roof mount for each ODU to be installed. In some cases, a different type of mast mount may be used, or an existing structure may be used. The mount supports the mast in a vertical or horizontal position, and the ODU is mounted on the mast, as shown in figure 5-1. rt009 Figure 5-1 Mast mount supporting mast and ODU 5–2 Installing mast mounts RT installation 1027144–0001 Draft – Revision D.
5.2 ODU location Site preparation personnel specify the ODU location as part of preparing the RT rooftop drawing. 1. Use the RT rooftop drawing to determine where to install the mount (at the ODU location) and locate IFL entry point. Make sure the roof penetration or entry point for the IFL is suitable. 2. Important: The location(s) used for ODU installation must meet the requirements listed in the Hub and Remote Terminal Site Preparation Guide.
5.5 Standard nonpenetrating mount The standard nonpenetrating roof mount, HNS 9200375–0001, is a flat, metal–frame mount assembled from a kit. It requires a 6.5–by–6.5–foot space (1.98 by 1.98 meters) and includes a 7–foot (2.1–meter) mast. You install the mount on a rubber pad; concrete blocks are added for ballast. The standard mount can be used on a variety of flat roof types, as detailed below. Instructions are given below for various types of roofs.
Figure 5-3 identifies the main mount components. Mast Mast brace angle Outer base angle Inner brace angle Rubber pad Diagonal base angle rt015 Figure 5-3 Mount components • Follow steps 3 through 10 to assemble the mount. 3. Place the mount’s four outer base angles on the rubber pad. 4. Place the mount’s diagonal base angles on the rubber pad and connect them to the outer base angles at the locations circled in figure 5-4.
5. Place the mast between the diagonal base angles. Secure the diagonal base angles to the mast as shown in figure 5-5. 1 2 2 1 2 1 1 2 rt014 Bolt Flat washer Lock washer Hex nut Figure 5-5 Attaching the diagonal base angles to the mast Diagonal base angles opposite each other are secured to the mast with one set of hardware as shown below. rt042 5–6 Installing mast mounts RT installation 1027144–0001 Draft – Revision D.
6. Attach the mast brace angles to the mast. See figure 5-6. 1 2 2 1 2 1 1 2 rt041 Carriage bolt Flat washer Lock washer Hex nut Figure 5-6 Attaching the mast brace angles to the mast Mast brace angles opposite each other are secured to the mast with one set of hardware as shown below. rt042 1027144–0001 Draft – Revision D.
7. Place the inner brace angles on the rubber pad and connect them to the diagonal base angles and mast brace angles as shown in figure 5-7. 1 2 2 1 2 1 1 2 rt016 Carriage bolt Flat washer Lock washer Hex nut Figure 5-7 Attaching inner brace angles to diagonal base angles and mast brace angles 8. 5–8 Installing mast mounts Refer to the Site Data Record (from the site survey) to determine how many concrete blocks are required to anchor the mount.
9. Place the concrete blocks on the mount so they are evenly spaced, with the ends of each block anchoring both the inner and outer base angles, as shown in figure 5-8. rtph010 Figure 5-8 Proper placement of concrete blocks on the mount 10. Corrugated metal When the mount installation is complete, if the roof is covered with gravel, replace gravel up to the outside edges of the mount. See figure 5-8. Do not replace gravel in the area inside the mount base. Leave the rubber pad exposed.
5. Lay out the 4 x 4s, as shown in figure 5-9, so that each piece is: - In the recessed portion of the roof - Parallel to the raised seams - Equally spaced to support the mast, mount braces and sides, and concrete blocks, as shown in figure 5-9. Lay the lumber with the pad side down, so that the pad is between the roof and the lumber.
5.6 Using existing structures as ODU mounts In some cases, you may be able to mount an ODU to an existing structure, such as a tower built to support communications antennas. The key factors for determining if an existing structure can be used as mast are that the structure must: • Be securely attached to the building (and capable of sustaining specified wind loadings). • Have an outside diameter of 2.0 to 4.5 inches. • Meet line of sight (LOS) requirements.
Chapter 6 RT INSTALLATION Installing ODUs This chapter explains how to install RT ODUs.
6.1 Introduction For conceptual reference, figure 6-1 illustrates how hub terminal (HT) ODUs communicate with remote terminal (RT) ODUs. The remote terminal (RT) outdoor unit (ODU) and integrated antenna attach to a mount installed on a vertical or horizontal mast, as shown in figure 6-2 on page 6–3. Hub terminals Remote terminal Remote terminal Remote terminal T0006019 Figure 6-1 Hub ODUs communicating with RT ODUs 6–2 Installing ODUs RT installation 1027144–0001 Draft – Revision D.
Mast ODU transceiver Mount Graphic to be updated. Antenna Figure 6-2 ODU (installed) Safety warnings When installing ODUs, observe the following safety warnings: DANGER Do not work on a ladder or roof without first reading the safety warnings on page x of this manual. Failure to observe these warnings could result in personal injury or death. WARNING Potential radio frequency (RF) hazard: • Keep away from the front of the outdoor unit (ODU) antenna while the ODU is operating.
Prerequisites Before you can install and commission the outdoor RT equipment: • The hub must be installed and operational. • The RT ESN (electronic serial number) must be entered in the EMS database. • The mast must be installed. The mast must have an outside diameter of 2.0 to 4.5 inches (5.5 to 11.4 centimeters) and must be securely mounted in a vertical or horizontal position. If the mast is not installed, you will need to install it before you proceed.
6.3 ODU installation and alignment tools Figure 6-3 shows the specialized tools included in the AIReach Broadband ODU installer tool kit (HNS 1024668–0024). You use these tools during installation and pointing to: • Support the antenna mount and ODU and • Adjust the antenna azimuth and elevation Instructions for these procedures are included in the following sections.
6.4 Installing the temporary collar Important: To correctly install the antenna mount, read and carefully follow all instructions in sections 6.4 through 6.8. The temporary installation collar (HNS 1024668–0022; figure 6-4) supports the antenna mount and ODU during installation (as shown in figure 6-3). Mast Temporary mast clamp Temporary installation collar hb036 Figure 6-4 Temporary installation collar Before you install the temporary installation collar: 1.
2. Determine (approximately) how high on the mast to install the temporary installation collar: a. Determine the approximate desired antenna installation height: The ODU/antenna must be installed in line of sight with the hub terminal (HT), with no obstructions. As a general rule, install the RT ODU as high as possible on the mast to avoid obstructions, unless the work order or RF survey specifies the ODU height. b. Refer to figure 6-5 for the collar position relative to the installed antenna position.
Attach the temporary installation collar to the mast, as follows: 1. Point the two long arms away from the direction of the HT, as shown in figures 6-6 and 6-7. 2. Position the collar and clamp on opposite sides of the mast, and swing the clamp toward the collar until you can “capture” the clamp by swiveling the free–swinging bolt into the slot in the clamp. Mast Bolt Swing clamp toward collar. Collar Point these arms away from the assigned HT sector.
3. 4. Align the collar with respect to the target HT as shown in figure 6-7. Using a torque wrench with a deep socket, tighten the temporary installation collar locking nuts to 16 foot–pounds torque (21.7 Newton–meters). 2 locking nuts: 16 foot-pounds Mast (21.7 Newton-meters) HT Close-up - Flat surface on collar Align this flat surface with line of sight to HT. Point these arms away from the HT sector. Installer position to align collar. (Sight from here.
6.5 Installing the antenna mount The antenna mount (HNS 1024668–0025) consists of a mast interface and permanent mast clamp, as shown in figure 6-8. Follow the steps below to install the antenna mount. Mast Mast interface Permanent mast clamp Antenna mount Temporary installation collar hb037 Figure 6-8 Antenna mount 1. Determine which side of the permanent mast clamp to use: Use this side against the mast if the mast outside diameter is less than 3.5 inches (8.9 centimeters).
2. Position the mast interface and permanent mast clamp on opposite sides of the mast, with the interface on the same side as the temporary collar, as shown in figure 6-9. Allow the bottom surface of the mast interface to rest on the top surface of the temporary installation collar. Permanent mast clamp Mast Mast interface Swing clamp toward interface. Clamp nut (1 of 4) Align the face of the mast interface so that these two surfaces are parallel.
6.6 Attaching the antenna to the mount 1. With the radome facing the HT direction, position the round, flat surface of the antenna bracket approximately 1 inch (2.5 centimeters) from the mast interface. Note: The RT antenna can be rotated 180°, as shown below, to attach to a mount to the right or left. T0009004 Figure 6-10 The RT antenna can be rotated to attach to the right or left 6–12 Installing ODUs RT installation 1027144–0001 Draft – Revision D.
2. Rotate the antenna approximately 45° away from the HT until the antenna bracket reliefs (curved indentations) are aligned with the four nuts on the mast interface, as shown in figure 6-11. 45 Line of sight to HT Mast interface Relief Relief (1of 4) Locking nut (1 of 4) Close-up view: Antenna bracket reliefs rt010 Figure 6-11 Rotating the antenna so the antenna bracket can be placed against the mast interface 3. 1027144–0001 Draft – Revision D.01 Press the antenna against the mast interface.
4. Rotate the antenna approximately 45° toward the HT, to the upright position, as shown in figure 6-12—then finger tighten the antenna bracket locking nuts so the antenna is snug and without excess movement. The antenna is now “captured” by the antenna mount. However, because the antenna bracket nuts are not fully tightened, you can adjust the antenna elevation.
6.7 Initial (coarse) antenna azimuth adjustment To adjust the antenna azimuth (horizontal pointing direction), you move the antenna to the left or right, as illustrated in figure 6-13. You adjust the azimuth until the antenna is pointed at the HT. Top view Mast Left Antenna azimuth can be Pointing direction HT adjusted + 10°. by _ rt052 Right RT antenna Figure 6-13 Antenna azimuth adjustment (to right or left) You adjust the antenna azimuth in three stages: 1. 2. 3.
Coarse azimuth adjustment Obtain a coarse azimuth adjustment as follows: 1. Using the antenna boresight for reference (see figure 6-14), rotate the antenna mount (and antenna) around the mast until you can see the HT in the boresight. Boresight Antenna bracket rt026 Figure 6-14 Boresight location 2. 3. 4. 6–16 Installing ODUs Using a torque wrench with a deep socket, tighten the four mast clamp nuts to 20 foot–pounds torque (27.1 Newton–meters).
6.8 Initial (coarse) antenna elevation adjustment To adjust the antenna elevation (upward or downward pointing direction), you rotate the antenna upward or downward, as illustrated in figure 6-15, until the elevation is set as desired. Side view Upward elevation 0° elevation Antenna (front) Downward elevation rt053 Figure 6-15 Antenna elevation adjustment (upward or downward adjustment) You adjust the antenna elevation in three stages: 1. 2. 3.
6.9 Checking the radome drain position Check to make sure the radome drain groove is at the bottom of the antenna. Drain groove rt030 Clamp: 20 inch-pounds (2.3 Newton-meters) Figure 6-16 Radome drain groove If the radome drain groove is at the bottom of the antenna, proceed to section 6.10. If the drain groove is not at the bottom of the antenna, rotate the radome panel as follows: 1. 2. 3. 4. Using a 5/32–inch (4–millimeter) torque hex key wrench, loosen the radome band clamp locking nut.
6.10 Installing the mechanical attenuator You must use a mechanical attenuator, shown in figure 6-17, if: • The RT is within 328 feet to 1,312 feet (100 to 400 meters) of the HT. • The RT pointing voltage, obtained from a voltmeter, exceeds 4.1 volts. • The installation work order instructs you to use it.
Important: Do not fully insert the mechanical attenuator. Ensure that part of the attenuator is exposed so it can be removed if necessary. Insert the attenuator here rt023 Close-up: Waveguide Attenuator Figure 6-18 Installing the mechanical attenuator 6–20 Installing ODUs RT installation 1027144–0001 Draft – Revision D.
6.11 Attaching the transceiver to the antenna Follow these steps to attach the transceiver to the antenna: 1. Remove the plastic plug from the antenna waveguide and the plastic cap from the transceiver coupling. CAUTION Always keep the waveguide and coupling plugs in place when the transceiver is detached from the antenna, to keep dust or other contamination out. 2. Position the transceiver so its four mounting bolts are aligned with the four grooves on the antenna flange, as shown in figure 6-19.
3. Rotate the transceiver, making sure the transceiver’s mounting bolts slide into the grooves in the antenna flange. (The direction of rotation depends on the orientation of the antenna bracket—to the right or left.) If the mounting bolts will not slide into the grooves, loosen the bolts. See figure 6-20. Rotate transceiver counter-clockwise Mounting bolts must be fully inserted in flange grooves. Graphic to be updated. Boresight rt021 Figure 6-20 Transceiver (installed) 4. 5.
6.12 Grounding the ODU Grounding the ODU requires several connections, as shown in figure 6-21. In making the ground connections, follow these practices: • For all ODU ground connections, use compression connectors (such as compression lugs or compression clamps). • For all threaded ground connections, use a flat washer and lock washer (with the lock washer next to the nut). Ground the ODU as follows: 1. Connect one end of the ground cable (No.
View from rear 1. Transceiver ODU ground connector Single-hole compression lug Graphic to be updated. IFL connector Ground cable No. 6 AWG or greater Apply anti-oxidant and heat shrink to all ground lugs. Transceiver 3. Antenna 2. Bolted joint on mast mount Ground point on roof (Shown: Bond to structural steel) ODU side view End view Ground cable Clamp-type ground connector. Strip cable at clamp.
6.13 Connecting the IFL to the ODU Connect the IFL to the ODU as shown in figure 6-22. rt058 Graphic to be updated. Ground wire IFL N connector Figure 6-22 Connecting the IFL to the ODU Do not apply weatherproofing compound or tape until the RT has been tested and commissioned. Weatherproofing is covered in section 8.1. 1027144–0001 Draft – Revision D.
6.14 Finer antenna azimuth adjustment Now that the transceiver and cables are attached to the ODU, adjust the antenna azimuth more precisely, as follows: 1. Install the azimuth adjuster as shown in figure 6-23. The azimuth/elevation adjusters are identical. Use either one as the azimuth adjuster or elevation adjuster. Two adjusters are provided for installation convenience. The part number for one adjuster is HNS 1024668–0023. Antenna mount Arm 1. Insert peg into hole. hb038 Adjuster bolt 3.
2. Using a torque wrench with a deep socket, verify that the torque of the four mast clamp nuts is 20 foot–pounds (27.1 Newton–meters). 4 mast clamp nuts: 20 foot-pounds (27.1 Newton-meters) hb070 Figure 6-24 Tightening the mast clamp nuts 3. 4. Loosen each nut by one full rotation. (The mount stays in position, but will move when you turn the azimuth adjuster with a wrench.) Using a wrench, rotate the adjuster bolt on the azimuth adjuster until the antenna azimuth is properly aligned.
6.15 Finer antenna elevation adjustment Adjust the antenna elevation more precisely, as follows: 1. Install the second azimuth/elevation adjuster as shown in figure 6-26. Antenna bracket 3. Finger tighten thumbscrew. 2. Place clamp on antenna bracket. (To move clamp, turn adjuster bolt.) Previously installed azimuth adjuster hb039 Install the second adjuster in vertical position for elevation adjustment. 1. Insert peg into hole.
4 antenna bracket nuts: 16 foot-pounds (21.7 Newton-meters) hb071 Figure 6-28 Tightening the antenna bracket nuts At this point, antenna installation is complete, and the antenna is visually pointed. Later, when you commission the RT, you will use a voltmeter to electronically point the antenna as accurately as possible. 1027144–0001 Draft – Revision D.
Chapter 7 RT INSTALLATION Commissioning the RT This chapter includes: • Prerequisites for commissioning – page 7–2 • Connecting the IFL to the CCM – page 7–3 • Front panel LCD operation – page 7–4 • Pointing the antenna – page 7–8 • Removing the installation tools – page 7–13 • Verifying HT acquisition – page 7–14 • Checking component status – page 7–14 • RT to HT connection tests – page 7–19 Commissioning refers to verification procedures to ensure that the newly installed RT is operational.
7.1 Prerequisites for commissioning To ensure successful commissioning, you must verify that the prerequisites listed below have been accomplished. These tasks must all be completed prior to commissioning. If any of them has not been done, make sure they are completed before you proceed with commissioning. The RT ODU, IFL, and IDU must be installed and connected.
7.2 Connecting the IFL to the CCM (IDU) Connect the IFL cable to the CCM (IDU): 1. 2. 3. Go to the IDU location. Make sure power to the IDU is off (or disconnected). Using a 90° adapter, connect the IFL (N connector) to the CCM IFL interface, as shown in figure 7-1. IFL CCM IFL interface RT CCM TM BROADBAND ENTER 1 2 3 4 5 IDU 90° adapter rt043 N connector Figure 7-1 Connecting the IFL cable 4. 1027144–0001 Draft – Revision D.01 Power on the IDU.
7.3 Front panel LCD operation This section describes how to use the LCD and buttons on the CCM front panel (figure 7-2). You need to use the LCD to commission the RT.
Accessing the LCD Main Menu When the CCM/ IDU is powered up or reset: • SUDS run automatically. • When SUDS are completed, the CCM LCD displays a SUDS Completed message. • The LCD then displays: Initializing Press Enter for Menu To access the CCM LCD Main Menu, press the ENTER button on the CCM front panel while the Initializing screen is displayed. This puts the IDU into diagnostic mode.
LCD menu map The menu map (figure 7-3) shows the available menu options for RTs. Note: Menu options are not the same for RTs and HTs.
CCM button functions The CCM button functions are explained in figure 7-4: TM BROADBAND Main Menu Status hb107 ENTER Scroll to next menu option Scroll to previous menu option Select (Selects currently displayed option or menu) Figure 7-4 CCM front panel button functions Exit options If you select Exit from the Main Menu . . . . . . while the system is operating, it remains in operational mode. . . . when the system is not in operational mode, the CCM reboots.
7.4 Pointing the antenna Following the RT antenna installation instructions in chapter 6, you pointed the antenna approximately toward the HT, using the boresight. This section explains how you more accurately point the RT antenna, using a digital voltmeter. To point the antenna, follow steps 1 through 13 below. Selecting the ODU frequency Before you can point the antenna using the voltmeter, you must first put the IDU into Install mode and select the (RT) ODU frequency, as follows: 1.
5. Scroll to the correct ODU frequency. Scroll up (up arrow) for a higher frequency; scroll down (down arrow) for a lower frequency. Important: If you do not see the correct frequency on the LCD, you may have installed the wrong ODU for the site (high band instead of low band, or vice versa). In this case, the LCD will not display the correct frequency as one of the available choices. If the wrong ODU is installed, you will not be able to proceed until the correct ODU is installed. 6.
Voltmeter pointing and final adjustments Follow these steps to fine–tune the azimuth and elevation adjustments made when the antenna was installed (sections 6.7 and 6.8). 7. 8. Take the digital voltmeter and torque wrench (with deep socket) to the ODU. Using a torque wrench with a deep socket, verify that the torque of the four mast clamp nuts on the antenna mount is 20 foot–pounds (27.1 Newton–meters). See figure 7-5. 4 mast clamp nuts: 20 foot-pounds (27.
10. Connect a digital voltmeter to the F connector on the ODU, as shown in figure 7-6, and select the 0 to 10 volt or 0 to 5 volt range. rt057 Graphic to be updated. Use F connector to connect cable to pointing port. Ground wire Cap IFL Voltmeter connections BNC connector with banana plug Digital voltmeter Figure 7-6 Connecting the digital voltmeter to the ODU Final antenna tightening 11. 12. Observe the reading on the voltmeter.
Table 7-1 Voltage indications for RT antenna pointing Voltmeter reading Indication Current voltage level with oscillation up to 4.1 V. (The reading intermittently peaks at the current voltage level for 2 seconds and then rises to 4.1 V for 1 second.) HT not acquired HT acquisition has not occurred. Continue pointing the antenna. 0.2 V to 3.9 V with no oscillation Correct HT acquired (Corrective action is not required.) Continue with the installation. 3.9 V to 4.
7.5 Removing the installation tools When the antenna is pointed correctly, remove the temporary collar, clamp, and adjusters (shaded parts in figure 7-7) and retain these tools for future installations. Remove all shaded parts. Elevation adjuster Azimuth adjuster hb057 Temporary installation collar Loosen this nut to remove collar. Bolt Figure 7-7 Removing the temporary collar, clamp, and adjusters 1027144–0001 Draft – Revision D.
7.6 Verifying HT acquisition Return to the IDU location to verify that the RT has acquired the RT and then take the IDU out of Install mode: 1. Observe the LCD on the CCM to verify that the HT has been successfully acquired. The following display indicates that the RT has successfully acquired the HT. Install HT nnn Acq Ack 2. nnn = HT ID Use the buttons and LCD on the CCM to select Exit and press the Enter button to take the IDU out of Install mode. Install Exit 7.
3. Press Enter, to go to (select) the Status menu: Status CCM 4. Press Enter to show the CCM status: CCM OK The possible status conditions for CCMs, SSIs, and the ODU are: OK The component is operational. Degraded The component is not fully operational. * Failed The component has failed. Unknown The CCM cannot communicate with the component. Action for “Failed” or “Degraded”status If the LCD shows Failed for any component, replace the component.
Check SSI status Check the status of the installed SSIs as follows: (Note that SSIs are not required for commissioning. They can be installed after RT commissioning.) 1. Press Enter on the CCM front panel while the Initializing screen shown below is displayed: Initializing Press Enter for Menu (This screen is displayed only after powerup or reset, after SUDS.) This puts the IDU into diagnostic mode. The LCD shows the Main Menu: The LCD shows: Main Menu Install 2.
5. Use the arrow button(s) to scroll to the SSI you want to check: Status SSI 3 Note: SSIs are numbered SSI 1 through SSI 4, according to their positions in the IDU chassis: Chassis slot SSI number 2 1 3 2 4 3 5 4 Slot 1 is occupied by the CCM. 6. Press Enter to show the status of the selected SSI: SSI 3 OK The possible status conditions for CCMs, SSIs, and the ODU are: OK Degraded Failed Unknown (as explained on page 7–15) Check the status of each installed SSI.
Check ODU status Check the status of the ODU as follows: 1. Press Enter on the CCM front panel. (The CCM must be in operational mode, as indicated by RT Enabled on the LCD.) The LCD shows: Main Menu Install 2. Use the up arrow to scroll to Main Menu / Status: Main Menu Status 3. Press Enter, to go to (select) the Status menu: Status CCM 4. Press the up arrow button twice to scroll to the ODU status option: Status ODU 5.
At this point, RT commissioning is complete, except for the RT to HT tests described in section 7.8. You may or may not be able to complete these tests, depending on whether or not other network components are installed and operational. (See the test requirements listed in section 7.8.) Leave the RT powered on for testing and operation. 7.8 RT to HT connection tests Perform the applicable tests described below if the newly installed RT meets the listed requirements.
Results The RT passes if there are no errors and no clock or frame slips during the test. Record the results on the form on the following page (or make a photocopy).
DS3 test This test verifies the DS3 connection from the RT to the HT. Requirements The DS3 test described below requires the following: • The RT must be fully installed, commissioned, and in • • • • contact with the EMS through the hub. The HT must be operational and in contact with the EMS. DS3 services must be configured and provisioned. There must be no alarms present at the RT location. A loopback connector must be connected to the input/out port at the patch panel nearest to the HT.
RT to HT DS3 test results RT location: ____________________________________________ Number of configured DS0: ________________________________ Test successful? ___ Yes ___ No RSSI __________ If not successful, complete: Bit error rate _______________ Frame slips _______________ Frame errors _______________ Clock slips ________________ Trouble report generated? ___ Yes ___ No If yes, report number: ____________________ If applicable: Faulty module part number ______________________ Serial number ___
Fractional DS3 test This test verifies the fractional DS3 connection from the HT to the RT. Requirements The fractional DS3 test described below requires the following: • The RT must be fully installed, commissioned, and in • • • • contact with the EMS through the hub. The HT must be operational and in contact with the EMS. Fractional DS3/DS1 services must be configured and provisioned. There must be no alarms present at the RT location.
RT to HT fractional DS3 test results RT location: ____________________________________________ Number of DS1s tested ______ Test successful? ___ Yes ___ No RSSI __________ If not successful, complete: Bit error rate _______________ Frame slips _______________ Frame errors _______________ Clock slips ________________ Trouble report generated? ___ Yes ___ No If yes, report number: ____________________ If applicable: Faulty module part number ______________________ Serial number _____________________
Chapter 8 RT INSTALLATION Final steps This chapter describes the final steps to take before you leave the customer site after completing the installation: • Weatherproofing – page 8–2 • Inspection, cleanup, and customer sign–off – page 8–3 • Connecting customer equipment – page 8–3 Safety warnings Observe these safety warnings while performing final inspections and related tasks: DANGER Do not work on a ladder or roof without first reading the safety warnings on page x of this manual.
8.1 Weatherproofing After the RT has been successfully commissioned, go to the ODU and seal all outdoor IFL connections (including connections to the lightning arrestor assembly). Use weatherproofing compound and tape to protect against moisture penetration: See figure 8-1. 1. 2. 3. 4. 5. Starting at the connector end, wrap electrical tape around the connector and part of the cable.
8.2 Inspection, cleanup, and sign–off Inspection After all equipment is installed and commissioned, visit each installation area to inspect the equipment and make sure the area is left clean and orderly. Inspect all equipment to make sure: • All cables are dressed (as necessary) and not bent • • • • • Cleanup excessively. All connections are secure. IFL connections are properly waterproofed. IDUs, racks, and ODUs are properly grounded. Antenna mount bolts are tightened.
RT INSTALLATION Chapter 9 Troubleshooting This chapter includes: • Troubleshooting flow charts – page 9–1 • Service information – page 9–6 9.1 Troubleshooting flow charts The troubleshooting flow charts in this chapter will help isolate most problems you might encounter during installation and operation of the AIReach Broadband system. Each flow chart begins with a specific problem, then leads you to specific corrective actions you should take.
Troubleshooting the CCM Problem: CCM will not power up. Is the correct voltage present at the IDU chassis input? No Check power source. No Replace IDU chassis. Yes Does chassis cooling fan operate when power is applied? Yes Replace CCM. hb109 9–2 Troubleshooting RT installation 1027144–0001 Draft – Revision D.
Troubleshooting the CCM - Continued Problem: CCM failed startup diagnostics (SUDS). Replace CCM. Problem: During CCM bootup / hardware initialization, LCD displays any of the following messages, indicating a device failure: Host Cfg Failed PLX Failed PLX IO Failed LAN Failed RCC FPGA Failed BSB FPGA Failed QPIG FPGA Failed Tim syn Failed Replace CCM. hb110 1027144–0001 Draft – Revision D.
7-1 . 9–4 Troubleshooting RT installation 1027144–0001 Draft – Revision D.
Troubleshooting: CCM won't download Problem: CCM will not download its software over the air (No "Loading Software" message on LCD.) 1. Replace ODU. 2. Replace CCM. rt070 1027144–0001 Draft – Revision D.
Troubleshooting: "RT Disabled" Problem: After CCM has downloaded its software, CCM LCD shows "RT Disabled" message. Are SSIs installed and configured? No "RT Disabled" message is normal if SSIs have not been installed and configured. Yes Check CCM, SSIs, and ODU via CCM LCD Status menu. If Status screen shows "CCM Failed" or "SSI(number) Failed" . . . If Status screen shows "ODU Failed" . . . Replace the CCM or indicated SSI. 1. Check IFL cable for continuity. 2. Check IFL cable connectors. 3.
Chapter 10 RT INSTALLATION Maintenance The AIReach Broadband physical system requires no routine maintenance. However, to facilitate expansion, reconfiguration, or repairs, you may need to add, move, or replace components.
10.1 Adding or moving SSIs Notify the EMS operator before you add or move SSIs. Make sure the EMS operator has performed any prerequisite steps that may be necessary before you add or move an SSI. For instructions on replacing SSIs, see section 10.6. CAUTION Always wear a new or recently tested electrostatic discharge (ESD) wrist strap (figure 3-14) when handling circuit modules. Failure to use a wrist strap may result in damage to components.
10.2 Replacing components The following RT components can be replaced at the installation site if a problem is attributed to the component: • • • • • ODU IDU chassis CCM SSIs IFL Specific instructions for replacing each component follow, in sections 10.3 through 10.7. 10.3 Replacing the ODU If the ODU is faulty, you normally replace the transceiver only (which contains the ODU electronics).
Replacing the transceiver To replace the transceiver, follow these steps: Removing the existing transceiver 1. 2. 3. Make sure the EMS operator has taken the RT out of service. At the IDU location: Remove power from the IDU chassis power supply. On the roof: Disconnect the ground cable and IFL from the ODU transceiver, as shown in figure 10-1. Graphic to be updated. Figure 10-1 Disconnecting the ODU ground and IFL cables 10–4 Maintenance RT installation 1027144–0001 Draft – Revision D.
4. Loosen the four transceiver mounting bolts (shown in figure 10-2). Graphic to be updated. Figure 10-2 Removing the transceiver 5. Rotate the transceiver until the bolts slide out of the four grooves in the antenna bracket. (The direction of rotation depends on the orientation of the antenna bracket—to the right or left.) If the mounting bolts will not slide into the grooves, loosen the bolts. See figure 10-2. Important: A mechanical attenuator may be installed (previously) in the antenna waveguide.
Installing the replacement transceiver 7. To install the replacement transceiver, follow the steps in section 6.11 (page 6–21). Important: If a mechanical attenuator was previously installed in the antenna waveguide, make sure it is still in place in the waveguide before you attach the transceiver to the antenna. 8. Connect the IFL cable to the IFL connector on the transceiver. 9. Ground the ODU, as explained in section 6.12 (page 6–23). 10.
Replacing the antenna If you need to replace the antenna, follow these steps: Removing the existing antenna 1. Remove the transceiver (steps 1 through 6 above, beginning on page 10–4). Be sure to remove power from the IDU chassis power supply. Important: A mechanical attenuator may be installed (previously) in the antenna waveguide. If an attenuator is installed, make sure it does not get lost or misplaced. Leave the attenuator in the waveguide. 2. Loosen the four antenna bracket locking nuts.
3. Rotate the antenna (clockwise or counterclockwise) until the antenna bracket reliefs (curved indentations) are aligned with the four nuts on the mast interface, as shown in figure 10-4. Antenna mount Relief Nut Antenna bracket Relief hb117 Rotate antenna and antenna bracket until reliefs are aligned with the 4 antenna bracket locking nuts, as show at right. Reliefs not aligned with nuts Reliefs aligned with nuts (Antenna in position to be removed) Figure 10-4 Removing the antenna 4. 5.
Installing the replacement antenna 6. Install a temporary installation collar below the antenna mount, as explained in section 6.4 (page 6–6). You need the temporary installation collar so you can point the replacement antenna. 7. Attach the replacement antenna to the mount, as explained in section 6.6 (page 6–12). 8. Point the replacement antenna by adjusting the azimuth and elevation as detailed in chapter 6. 9. Attach the transceiver to the antenna, as explained in section 6.11 (page 6–21).
10.4 Replacing the IDU chassis Do not attempt to service or replace the IDU chassis power supply. If there is a problem with the power supply, replace the entire IDU chassis. To replace the IDU chassis, follow these steps: If you need additional details concerning the instructions below, see chapter 3. Removing the existing IDU chassis 1. 2. 3. 4. 5. Make sure the EMS operator has taken the RT out of service. Remove power from the IDU chassis power supply.
6. Place the CCM in its ESD protective packaging. 7. Remove all SSIs: a. Using a piece of tape on the SSI front panel, mark the slot number where each SSI was installed. b. Loosen the thumbscrews at each end. c. Using an ESD wrist strap connected to a chassis ground terminal, slide the SSI out of its slot. 8. Place each SSI in ESD protective packaging. 9. If the IDU chassis is rack mounted, remove the four mounting screws and remove the chassis from the rack. 10.
10.5 Replacing the CCM If you need to replace the CCM, follow these steps: If you need additional details concerning the instructions below, see section 3.4 (page 3–24). Removing the existing CCM 1. 2. 3. 4. Make sure the EMS operator has taken the RT out of service. Remove power from the IDU chassis power supply. Loosen the thumbscrews at each end of the (existing) CCM. Using an ESD wrist strap connected to a chassis ground terminal, slide the CCM out of its slot, as shown in figure 10-6.
10.6 Replacing SSIs To replace an SSI, follow the steps below. SSIs are hot swappable, so you do not need to power off the IDU to replace an SSI. If you need additional details concerning the instructions below, see section 3.5 (page 3–28). Removing the SSI 1. 2. 3. Note which slot the SSI to be replaced is in. Loosen the thumbscrews at each end of the SSI. Using an ESD wrist strap connected to a chassis ground terminal, slide the SSI out of its slot.
10.7 Replacing the IFL If you suspect problems with the IFL, check all IFL connections and then test the IFL. Replace the IFL only if there is a known problem that cannot be corrected any other way. DANGER Do not work on a ladder or roof without first reading the safety warnings on page x of this manual. Failure to observe these warnings could result in personal injury or death.
Environments where IFLs are installed vary widely. Therefore, use the general instructions below as guidelines. If you need to replace the IFL: 1. 2. 3. Make sure the EMS operator has taken the RT out of service. Remove power from the IDU chassis power supply.
10.8 Dismantling an RT If you need to dismantle an entire RT, follow the steps below. DANGER Do not work on a ladder or roof without first reading the safety warnings on page x of this manual. Failure to observe these warnings could result in personal injury or death. WARNING Potential radio frequency (RF) hazard: • Keep away from the front of the outdoor unit (ODU) antenna while the ODU is operating. Note that you cannot tell from outward appearance whether the ODU is operating or not.
Appendix A Acronyms and abbreviations ac – alternating current lb – pound(s) ATM – asynchronous transfer mode LCD – liquid crystal display AWG – American wire gauge LED – light emitting diode LOS – line of sight BER – bit error rate BSP – baseband signal processor m – meter MAC – media access control C – Celsius mm – millimeter CCM – channel and control module cm – centimeter NEBS – Network Equipment Building Standards CMR – communication riser NEC – National Electric Code CPU – central proce
V – volt Vac – volt, alternating current Vdc – volt, direct current VSAT – very small aperture terminal WND – Wireless Networks Division WDT – watch dog timer A- 2 1027144– 0001 Draft – Revision D.
Appendix B Standards compliance This appendix includes standards compliance information for the AIReach Broadband outdoor unit (ODU) and ac power indoor unit (IDU). Information is included for: • Interference standards compliance • Underwriters Laboratories, Inc., safety compliance • RF, electrical fast transient, and ESD immunity 1027144–0001 Draft – Revision D.
B.1 Outdoor unit This section provides information on the AIReach Broadband outdoor unit (ODU). FCC compliance This equipment complies with Part 15 of United States Federal Communication Commission (FCC) Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
B.2 Indoor unit (ac) FCC compliance This section provides information on the AIReach Broadband ac power indoor unit (IDU). This equipment complies with Part 15 of United States Federal Communication Commission (FCC) Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Appendix C Terminating the IFL cable This appendix explains in detail how to terminate the IFL cable ends by attaching an N–type connector.
C.1 Cable parts and terminology Figure C-1 shows the main cable components. IFL cable, terminated - shown without heat-shrink tubing N connector N connector Outer jacket Braid Center conductor (solid or stranded copper) Dielectric (foam or flexible plastic) 7/32 inch (6 millimeters) hb013 Figure C-1 IFL cable components HNS kit 9006284–0002 contains two N connectors. C–2 Terminating the IFL cable RT installation 1027144–0001 Draft – Revision D.
C.2 Preparing the cable end Prepare the cable end as follows: 1. 2. 3. Inspect the cable end for damage from handling and trim off any damaged portions. Cut the cable as cleanly and squarely as possible. Slip the crimp ring and a piece of heat–shrink tubing (HNS9007488–0005) onto the cable, as shown in figure C-2. Heat-shrink tubing Crimp ring Butt-cut cable end hb014 Figure C-2 Slipping the crimp ring and heat–shrink tubing onto the cable 4. 1027144–0001 Draft – Revision D.
Gold-colored cable stop Stripper jaws Butt-cut cable end Barrel 1. Insert cable into barrel. 2. Squeeze and rotate tool to strip cable. 3. Remove jacket and dielectric to expose center conductor. hb012 Jacket Dielectric Center conductor 7/32 inch (6 millimeters) Figure C-3 Using the spin–stripping tool to expose the center conductor C–4 Terminating the IFL cable RT installation 1027144–0001 Draft – Revision D.
5. 6. Using a razor knife, carefully slit the outer jacket as shown in figure C-4. Cut around the cable; then cut from the cable end to the first cut. Cut completely through the jacket, but do not cut into the braid. Using the razor knife or a pair of diagonal cutters, lift the jacket and peel it away as shown in figure C-4. Remove jacket. 1 2 hb016 5/8 inch (16 millimeters) Figure C-4 Cutting and removing the jacket 7.
8. Flare the braid slightly and trim to 7/16 inch (11 millimeters), as shown in figure C-5. 7/16 inch (11 millimeters) Jacket hb093 Braid Figure C-5 Braid, flared and trimmed 9. Cut approximately 1/4 inch (6 millimeters) of the excess braid so that all braids will be under the crimp ring when the connector is completed. C.3 Attaching the connector The following steps explain how to attach the IFL (N) connector. The same type of connector is used at both ends.
To install the cable connector, follow these steps. 1. 2. Place the insulating washer against the dielectric. Push the center pin (with guide pin attached) over the cable center conductor, as shown in figure C-7. Crimp area Center pin Guide pin T0006021 Insulating washer Crimp flush with washer. Figure C-7 Installing the insulator and center pin 3. Use the HCT–231 crimp tool (figure C-8) to crimp the center pin flush with the washer, as shown in figure C-7.
4. Follow the instructions in figure C-9 to install the connector body and crimp ring, and remove the guide pin. Guide pin and center pin 1. Insert guide pin through back of connector body until the cable stops. Crimp ring Connector body Center pin Guide pin Ground socket Center pin inside connector body Recess hb022 2. Slide crimp ring over braid and into recess. 3. Remove and discard guide pin. Figure C-9 Installing the connector body and crimp ring 5.
6. Comb the braid only if the crimp ring will not fit over the shoulder and braid. If the crimp ring fits over the shoulder and braid, skip to step 7). a. Insert a pick or scribe into the braid and carefully comb the strands as shown in figure C-10. Start combing at the cut end. Comb the strands around the entire perimeter. Work backward, from the cut end toward the jacket—but always combing away from the jacket, as shown in figure C-10.
7. While holding the connector assembly together snugly, position the HCT–231 crimping tool, at setting 0.475, onto the area shown in figure C-11 and securely crimp the crimp ring into place. CAUTION To avoid damaging the connector body, make sure the crimping tool does not touch the connector jam nut. Crimp Maximum gap (exposed braid): 0.03 inch (0.8 millimeter) Best if no gap. hb024 Figure C-11 Crimp location Note: If the crimp ring slips and results in a gap greater than 0.03 inch (0.
C.4 Applying heat–shrink tubing Apply the heat–shrink tubing as follows: 1. Position the heat–shrink tubing near (but not touching) the jam nut, so it covers the crimp ring and a portion of the connector collar, as shown in figure C-12. Heat-shrink tubing Crimp ring Collar Jam nut hb026 Figure C-12 Heat–shrink tubing, properly placed for shrinking 2. Using a heat gun, heat-shrink the tubing until it snugly fits around the cable, crimp ring, and part of the connector collar.
Index has not been updated Index A Abbreviations (identified), A- 1 Access, buildings and equipment locations, 2–2 Bend radius (IFL cable), 5–8, 5–23 Blocks.
Crimp tool, 5–14 Customer equipment, connecting, 8–3 Customer sign–off, 8–3 F F connector location for connecting voltmeter, 7–6 Failure indication on CCM LCD, 6–40 D FCC, B–2, B–3 Dismantling an RT, 10–16 FEMs, 6–31 EIDU FEMs, 6–32 IDU FEMs, 6–32 installing, 6–34 types, 6–32 where installed, 6–32 Distance – RT to HT, 7–3 Fiber extender modules. See FEMs Documents, related, v Front panel display.
LCD. See LCD power supply, 6–5, 6–9 ac, 6–11 dc, 6–13 dual ac or dc, 6–9 rack mounting, 6–6 options, 6–6 replacing, 10–10 slots, numbering of, 6–4 specifications.
N N connectors attaching to IFL cable, 5–13 location (IFL cable), 5–4 National Electric Code (NEC), B–2 O ODU, 4–1 connecting digital voltmeter, 7–6 connecting the IFL cable, 5–24 frequency, 7–4 grounding, 4–26 illustration, 4–4 location, 2–1 replacing, 10–3 standards compliance, B–2 status, 6–43 transporting to the roof, 4–5 ODU installer tool kit, 2–4 illustration, 2–5 removing tools, 7–9 tools included, 4–6 uses, 4–6 ODU location, 3–4 Outdoor unit.
S Safety information, vii rack mounting, 6–6 Service loops, 5–8 Service–specific interface.
