WaveNet Link CX User Manual (FCC Certified Version) Part Number 100757-001 5/02 Version A
The products described in this document are products of interWAVE Communications, Inc. or its licensers. No part of this document may be photocopied, reproduced, translated, transferred, disclosed or otherwise provided to third parties without the prior written consent of an officer of interWAVE Communications, Inc. This document applies to the interWAVE Communications, Inc.
United States Federal Communications Commission Required User Documentation This equipment complies with Part 15 of the 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. Changes or modifications not expressly approved by interWAVE in writing can void the user’s authority to operate this equipment.
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Table of Contents Welcome! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Document Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Microwave Radiation Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Related Documentation . . . . . . . . . . . . .
Chapter 3 Installation Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 3-1 3-2 3-3 3-4 3-5 3-6 Planning a Link CX Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Site Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Planning Element and Network Management Ethernet Links . . . .
-2 Using the Link CX LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 7-3 Using RSSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 7-4 Using a Web Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Appendix 1 Interface Cable Pinouts . . . . . . . . . . . . . . . . . . . . . .
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Preface Welcome! This manual is intended for the technical personnel who will install and operate the U-NII (Unlicensed National Information Infrastructure) and ISM (Industrial, Scientific and Medical) Link CX. Such personnel are typically experienced and skilled technicians familiar with on site, physical installation and connection of equipment, including maintenance work.
Microwave signal levels that give rise to hazardous radiation levels can exist within transmitter power amplifiers, associated RF multiplexers, and antenna systems. Never look into the front of an open RF connection or RF antenna as eyes are particularly vulnerable to radiation. Do not disconnect RF coaxial connectors, open microwave units, or break down any microwave screening while the radio equipment is operating.
Table 1 5.3 GHz Link CX Specifications Parameter Description FCC Identifier OEWCX-DS3-53G Frequency Band 5250 – 5350 MHz, U-NII per 15.407 Mode of Operation Full Duplex, 100% duty cycle Channel Spacing 16 MHz Transmit / Receive Separation 60 MHz Number of Channel Pairs 2 Channel Pair 1 5262 MHz / 5322 MHz Channel Pair 2 5278 MHz / 5338 MHz Modulation 16 QAM, α = 0.15 Emission Bandwidth (26 dB) 13.9 MHz Frequency Stability +/- 5.0 PPM Maximum Output Power -1.0 dBm average (+7.
Table 2 5.8 GHz Link CX Specifications Parameter Description FCC Identifier OEWCX-DS3-58G Frequency Band 5725 – 5850 MHz, per 15.247, revised 5/16/02 Mode of Operation Full Duplex, 100% duty cycle Channel Spacing 16 MHz Transmit / Receive Separation 60 MHz Number of Channel Pairs 2 Channel Pair 1 5737 MHz / 5797 MHz Channel Pair 2 5753 MHz / 5813 MHz Modulation 16 QAM, α = 0.15 Emission Bandwidth (26 dB) 13.9 MHz Frequency Stability +/- 5.
Customer Support Services interWAVE has regional Customer Support centers that handle day-to-day customer issues. Each center is staffed with a local technical support group. The exact services to be performed by the interWAVE Customer Support department are specified in a support contract.
Return Materials Authorization In the event that a depot repair or hardware replacement is required after contacting Customer Support, please contact interWAVE for return authorization.
Conventions Used in this Manual The following type and style conventions are used in this manual: ssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
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One System Description 10000 This chapter contains a functional description of the Link CX product family, and contains the following sections: • Section 1-1, General • Section 1-2, System Overview • Section 1-3, Features • Section 1-4, Link CX Basic Structure • Section 1-5, Typical Applications Welcome to the interWAVE WaveNet Link Series product family.
Each Link CX is powered by an external ±21 to ±60 VDC power supply. 1-1.2 Applications The Link CX product line is designed to serve the following communications markets: • Internet Access and Backhaul Systems: Used by Internet Service Providers (ISPs). • Private Networks: Wireless Bridged LANs and WANs. • PCS/PCN and Cellular Networks: High speed links between base stations. • Wireless Local Loop Networks: Fixed wireless, used by Local Exchange Carriers (LECs).
Line of Sight Transmission Path DS-3 or Ethernet Data DS-3 or Ethernet Data A. Radio Link using 5.3 GHz or 5.8 GHz Link CX with Integral Antennas Line of Sight Transmission Path DS-3 or Ethernet Data DS-3 or Ethernet Data B. Radio Link using 5.
Because the Link CX can be ordered in two different bands, with high and low channels, and can be installed with horizontal or vertical polarization, up to eight Link CXs can be mounted at a each hub, or node, to form part of a star or mesh network. See Figure 1-2. 1H 5.8 1V 5.3 2H 5.3 a 2V 5.8 2V 5.8 Link CX 5.8 Link CX 5.3 1V 5.3 2H 5.3 a = 0 - 90° 1H = Channel 1, 1H 5.
1-3 Features The Link CX offers the following features: • Robust outdoor all-outdoor enclosure. • Integral or external antenna. • Sturdy radio mounting systems for quick, accurate and reliable integral antenna alignment. • Operates in the license-exempt 5.25-5.35 GHz (5.3 GHz) or 5.725-5.825 GHz (5.8 GHz) bands. • Conforms with FCC Part 15.247 rules (5.725-5.825 GHz) or Part 15.407 rules (5.25-5.35 GHz).
1-4 Link CX Basic Structure 1-4.1 Radio Links Each radio link includes two Link CX terminals. Each terminal consists of a Link CX radio with an integral flat-panel antenna, or a Link CX radio with an external antenna (see Figure 1-1). Generally, the Link CX terminals are mounted outdoors on a tower or building. 1-4.2 Data Stream The DS-3 or Ethernet data signals enter the Link CX, and are modulated into the RF data stream.
1-4.4 Mounting and Antenna Alignment To ensure proper mounting and antenna alignment interWAVE sells mounting brackets designed for use with the Link CX. The single bracket mounts one Link CX, while the dual bracket mounts two Link CXs back-to-back. Both brackets are designed to provide rugged mounting for the Link CX, while allowing fine adjustment for antenna alignment. 1-4.5 Interface Connectors and Indicators See Figure 1-3 for a view of the Link CX external connectors and indicators.
Table 1-2 Link CX Interface Connectors and Indicators No.
1-4.6 Cables To ensure longevity in a outdoor environment, interWAVE sells various cables designed for use with the Link CX. interWAVE offers the following weather-resistant cables: • DS-3 and Ethernet data cables and the power cables are offered in 25 m (82 ft.), 50 m (164 ft.), and 100 m (328 ft.) lengths. • A 6 m (19.7 ft.) Ethernet cable is available to route the Ethernet signal between two Link CXs in the same location, or when you are configuring the Link CX from a Craft PC.
1-4.7 Integral Antenna The integral antenna is a 30 cm x 30 cm (12 in. x 12 in.) flat-panel antenna mounted directly on the 5.3 GHz or 5.8 GHz Link CX radio chassis, as shown in Figure 1-4. All RF connections between the integral antenna and the Link CX radio are made internally, eliminating the need for external coaxial cabling. Because the integral antenna is sealed onto the Link CX chassis, the Link CX and integral antenna are mounted as a unit, and share the same environmental protection.
1-4.8 External Antenna Some 5.8 GHz Link CX models use an external antenna to radiate and receive RF signals. The antenna attaches to the Link CX via a factory-supplied cable. The following sections describe factory- and customer-supplied external antennas. Factory-Supplied The following external antennas are offered for use with the Link CX: • 61 cm (2 ft.) parabolic type • 122 cm (4 ft.) parabolic type Figure 1-5 shows a typical 61 cm external antenna with N-type connector cabled to the Link CX radio.
External Antenna FactorySupplied Coaxial Cable Link CX Radio IW060204 Figure 1-5 12 Typical Factory-Supplied External Antenna and 5.
1-4.9 Configuration, Operation, and Monitoring The Link CX and radio link are configured, operated and monitored through one of five user interfaces. The five interfaces are: • A built-in web server GUI hosted by the Link CX, which can be accessed by any local or remote computer equipped with a web browser. This is the interface most operators will use to interact with the Link CX. The web browser can access the Link CX built-in web server through either the ETHERNET 1 or ETHERNET 2 port.
• SNMP agent in the Link CX. The workstation manages all Link CXs assigned unique IP addresses. The workstation also provides a graphical display of the network objects showing the status, performance, and configuration parameters of each Link CX radio. The SNMP local agent is a standard MIB-II compliant software module that resides in each Link CX. The agent collects information from different Link CX components as defined in the Management Information Base (MIB) structure.
1-4.14 GUI Functions The Web-based GUI monitors and controls the main functions of the Link CX. These functions are listed below and detailed in the following sections: • Configuration management • Status and fault management • Test activation and monitoring • Software downloading • Performance monitoring Refer to Appendix 3 for Link CX GUI operating instructions.
BER Test The following Bit Error Rate (BER) test is provided by Link CX: • Pseudo random signal generator - capable of inserting a standard test signal for BER measurements, and local- and remote-end loopback functions. • BER measurements of radio link performance under normal operating conditions. Software Downloading The Web-based user interface enables off-line operation and SNMP updates of files. Alternatively, when on-line, configuration can be updated from the NMS to the Link CX agent.
1-5.1 Internet (ISP) The appetite for higher Internet access speeds require faster ISP access and backhaul and ISP connections to businesses. The Link CX radio is perfectly suitable for both backbone and direct end-user connectivity. 1-5.2 Private Network Wireless Bridged LANs and WANs Link CX radios are also used to provide communications links for private networks.
1-5.6 Backhaul for Wireless MTU and MTU Access The Link CX radio can be used as an infrastructure element in wireless Multiple Tenant Unit (MTU) and Multiple Dwelling Unit (MDU) applications, when used with interWAVE StreamNet products. Figure 1-6 shows a typical wireless MTU/MDU access configuration.
1-5.7 Wireless Mesh Backhaul Networks 2.5G and 3G cellular systems, which integrate voice and data, require higher-capacity backhaul, QoS (Quality of Service), BoD (Bandwidth on Demand), ability to dynamically load balance bursty traffic, and provide support for legacy 1G and 2G systems. When used with interWAVE StreamNet ATM Switches, the Link CX can provide the radio links for a self-healing wireless mesh backhaul network to support broadband ATM communications to support this application.
1-5.8 Wireless ATM Mesh Distribution with StreamNet When used with interWAVE StreamNet ATM Switches, the Link CX can provide the radio links for a self-healing wireless ATM mesh backhaul network to support broadband communications. These networks feature high reliability, lower maintenance costs, improved scalability, and enhanced interference mitigation. See Figure 1-8 for a typical wireless ATM mesh backhaul network. 1H 5.8 2H 5.3 2H 5.3 2H 5.3 2V 5.8 1H 5.8 1V 5.3 StreamNet 1H 5.8 Link CX 5.
Two Installation Steering Guide 20000 This chapter briefly outlines the complete installation and configuration procedure for the Link CX, and a flowchart of this process is given. The topics discussed here are presented in detail in subsequent chapters of this manual. 2-1 Installation Flow Chart The flow chart in Figure 2-1 includes references to the installation and troubleshooting sections in this manual.
Start Chapter 3 Planning the Installation Section 4-1 Before Installing Section 4-2 Initial Configuration Section 4-3 Mounting the Link CX Section 4-4 External Antenna Installation (Optional) Section 4-5 Completing the Link CX Installation Section 4-6 Aligning the Antenna Chapter 7 Troubleshooting Not OK Section 4-7 Acceptance Testing OK Chapter 5 Final Link CX Configuration End Figure 2-1 22 IW017201 Installation Flowchart Link CX User Manual, Version A
Three Installation Planning 30000 This chapter provides a comprehensive planning guide for Link CX installations, and includes a Radio Link Planning Worksheet that should be filled out for each radio link. Fill out a copy of the Radio Link Planning Worksheet before continuing with Chapter Four. In addition, this chapter provides an introduction to Network Management System (NMS) software and configuration issues.
Link CXs on each end of the radio link will be unable to communicate with each other. Make sure the Link CX radios used in each radio link are within line of sight of each other. Refer also to the Fresnel Zone Clearance section that follows. • Fresnel Zone Clearance: There must be sufficient open space around the direct line of sight to minimize interference with the radio beam. At a minimum, 60% of the first Fresnel zone of the path should be clear.
Direct Path d1 .6F1 Envelope d2 IW100201 Figure 3-1 Fresnel Zone Clearance 0.6F1 = 10.4 d1d2 -----------fD Fresnel Zone Clearance formula Where: Fl = First Fresnel zone radius in meters d1= Distance from transmitter to reflection point in kilometers D = Length of direct signal path in kilometers d2 = D - d1 f = Transmission frequency in GHz. Figure 3-1 shows that the Fresnel zone radius is greatest at midpath. It is at this point that the required obstacle clearance is greatest.
Table 3-1 Beam Clearance Envelope at Midpath Path Distance Midpath Minimum Beam Clearance Envelope (Note) 2 km 7m 5 km 11 m 10 km 15 m 20 km 21 m 32 km 27 m 1 mile 20 ft 3 miles 34 ft 6 miles 48 ft 12 miles 69 ft 20 miles 88 ft Note: The minimum beam clearance envelope is defined by the radius around the direct path shown in Figure 3-1, within which there must be no obstacles.
Line of Sight Transmission Path Multipath Reflection Building Building A. Link CXs Mounted on Front of Building Experience Multipath Fading Line of Sight Transmission Path Multipath Reflections Building Building B.
3-2 Site Planning Each proposed Link CX terminal site requires a site survey and plan for the following: • Power: The Link CX radio requires a +/-21 to +/-60 VDC power source. Make sure required power supply is available before installing the Link CX. • Mounting Point: The Link CX is usually mounted on a vertical mast or pole mounted on a building or a tower. The Link CX mounting bracket can accommodate a 4.5- to 11.5-cm (1.75- to 4.5-in.) diameter mast or pole.
EMS/NMS Ethernet Backbone A. DS-3 Link CXs at Different Locations Switch/ Router Ethernet EMS/NMS B. Colocated DS-3 Link CXs EMS/NMS Switch Ethernet C.
3-4 Planning DS-3 Links The Link CX DS-3 versions use paired 75 Ohm cables with male TNC connectors for the transmit and receive data from external DS-3 equipment. interWAVE sells 25 m (82 ft.), 50 m (14 ft.), and 100 m (328 ft.) DS-3 cables with the correct connectors for these links, as described in Section 1-4.6. Alternatively, when a StreamNet ATM Switch is connected to the Link CX, interWAVE sells a 6 m (20 ft.) DS-3 cable with the correct connectors for this link, as described in Section 1-4.6.
3-6 Transmit Power Planning The Link CX normally uses a manually-set output power level. When Automatic Transmit Power Control (ATPC) is enabled, the far-end Link CX terminal provides feedback to the near-end Link CX to lower the transmit power to the lowest level required for clear data transmission. Transmit power can be attenuated by 40 dB for initial configuration and interference isolation.
3-7 Radio Link Planning As described in Section 1-4, each radio link requires one Link CX at each end of the link.
Table 3-3 Radio Link Planning Worksheet (continued) Link CX 1 - High Band Link CX 2 - Low Band IP Address (must be different, obtain from IP network planner) ___.___.___.___ ___.___.___.___ Subnet Mask (obtain from IP network planner) ___.___.___.___ ___.___.___.___ Default Gateway (obtain from IP network planner) ___.___.___.___ ___.___.___.
Table 3-3 Radio Link Planning Worksheet (continued) Link CX 1 - High Band Link CX 2 - Low Band Any (default) -OR___.___.___.___ Any (default) -OR___.___.___.___ Read-Only Community (default = public, up to 19 ASCII characters starting with an alpha character, including numbers and - _ .
Four Installing the Link CX 40000 This chapter describes the physical installation of the Link CX. Each Link CX consists of an outdoor pole-mounted radio with integral antenna or optional external antenna. If so equipped, the Link CX radio is connected to the external antenna with a factory-supplied coaxial cable. For faster installation, make sure you have a filled-out copy of the Radio Link Planning Worksheet from Chapter Three before continuing with the rest of this chapter.
This device is to be exclusively used for fixed point-to-point operation with directional antennas. 4-1 Before Installing Before you continue with this installation, make sure you have a filled-out copy of the Radio Link Planning Worksheet found in Section 3-7. 4-1.1 General Guidelines The installation, maintenance, or removal of antenna systems requires qualified, experienced personnel. Link CX installation instructions have been written for such personnel.
4-1.2 Equipment and Unpacking interWAVE suggests that the user retain at least one (1) of each packing carton with all its packing materials. In the event that it is necessary to return a unit, the user will have the required packing material for safe shipment. Each Link CX radio is shipped with the Link CX User’s Manual on CD-ROM, and a separate box contains the optional 5.8 GHz external Antenna Mount Assembly, U-bolts and antenna with tube attachment.
4 3 1A 1B 2A 2B 2C 5A 6 5B 7 8 (Graphic TBD) 9A, 9B 10 IW093201 Figure 4-1 38 Link CX Orderable Parts Link CX User Manual, Version A
Table 4-1 Link CX Radio Orderable Parts Item Qty Part Number Description See Also 1A 1 See Table 1-1 Link CX Radio, Integral Antenna Section 1-4.3 1B 1 See Table 1-1 Link CX Radio, External Antenna Section 1-4.3 2A 1 100607-001 Non-Adjustable Elevation Single Link CX Radio Bracket Section 1-4.4 2B 1 100680-001 Adjustable Elevation Single Link CX Radio Brackets Section 1-4.4 2C 1 100694-001 Adjustable Elevation Dual Link CX Radio Brackets Section 1-4.
4-1.4 Installation Tools and Materials Tools The user should have at least the following tools on hand before installing the Link CX radio: Table 4-2 Required Installation Tools Tools Purpose 13 mm (11/16 in.) and YY mm (XX in.) and RR mm (SS in.
4-2 Initial Configuration interWAVE strongly recommends that the installer configure the Link CX at a depot or on-site before it is mounted in its final location. This section includes instructions on how to configure the Link CX before it is installed. Because you can expose yourself to harmful RF radiation any time the Link CX is powered up, do not stand within 2 m (79 in.) of the antenna during Link CX operation.
Mil-Type Connector From +/-21 to +/-60 Vdc Supply CAT-5 Ethernet Cable Craft PC RJ-45 Ethernet Port Figure 4-2 IW093202 Link CX Configuration Setup 4-2.2 Logging In to the Link CX Built-In Web Server After you have connected and powered up the Link CX and the Craft PC as described in Section 4-2.1, use the web browser on the Craft PC to log into the Link CX built-in web server as follows: 8 Launch the web browser per the manufacturer’s instructions. 9 Open the web page at ethernet address 10.0.0.
Figure 4-3 Typical 5.
12 Figure 4-4 On the Monitor page, select the link for the Commission Radio page. The web browser displays the Commission Radio page, similar to the sample shown in Figure 4-4. Typical 5.8 GHz Link CX Commission Radio Web Page The Link CX is shipped with Tx Attenuation disabled. Enable Tx Attenuation until the rest of the Link CX configuration steps are completed.
17 Click Submit Changes to upload changes to the Link CX. 18 On the Commission Manager Interfaces page, select the link for the Test page. The web browser displays the Test page, similar to the sample shown in Figure 4-6. 19 On the Test page, select the BERT + Radio Loopback test, and select One Minute. Select Start Test to verify the internal Link CX circuitry before installation.
Figure 4-5 46 Link CX Commission Manager Web Page Link CX User Manual, Version A
Figure 4-6 Link CX Test Web Page Installing the Link CX 47
4-3 Mounting the Link CX The Link CX radio is a sealed unit that installs on a pole. When the Link CX is equipped with an integral antenna, there is no need to install an external antenna. When the Link CX is equipped with an external antenna, you will mount the Link CX as described in this section, then you will install the optional external antenna as described in Section 4-4. A pole is not supplied with the Link CX and should be in place before attempting installation.
Non-Adjustable Elevation Single Link CX Bracket A B C See Figure 4-7. Assemble the two steel band clamps to the pole mount bracket. Wrap the clamps around the pole and finger tighten their clamp screws. The bracket should be able to pivot around the pole, allowing horizontal alignment. Install the pole-mount bracket. • When you are installing a Link CX with an integral antenna, use a compass or optical aid to coarsely align the pole mount bracket with the far-end antenna location.
IW099202 Figure 4-8 Adjustable Elevation Single Link CX Bracket Adjustable Elevation Dual Link CX Bracket A B Assemble the pole mount brackets and associated nuts, bolts, and washers on the pole as shown in Figure 4-9. Finger tighten the four nuts. The pole mount bracket assembly should be able to pivot around the pole, allowing coarse horizontal alignment. Use a compass or optical aid to coarsely align the pole mount bracket assembly between the far-end antenna locations.
IW099203 Figure 4-9 Adjustable Elevation Dual Link CX Pole Mount Bracket Assembly Installing the Link CX 51
D E F G On each side of the pole mount bracket assembly, assemble the rest of the Link CX mounting bracket assembly parts as shown in Figure 4-10. Finger tighten the six bolts on each Link CX mounting bracket assembly. Each Link CX mounting bracket assembly should be able to pivot around the pole and elevate up and down, allowing fine azimuth and elevation alignment. Use a level to ensure that the coarse elevation for each Link CX mounting bracket assembly is 0°. Continue with Section 4-3.2.
4-3.2 Attaching the Link CX to the Mounting Bracket Selecting the Link CX Integral Antenna Polarization Both ends of the radio link must be identically polarized. The planned polarization is available from the filled-out copy of the Radio Link Planning Worksheet from Chapter Three. When the Link CX is equipped with an integral antenna, how it is mounted determines the horizontal or vertical polarization.
Attaching the Link CX 26 See Figure 4-11, Figure 4-12 and Figure 4-13. 27 Orient the Link CX as shown in Figure 4-11, and align it with the mounting bracket as shown in Figure 4-12. Note that the four mounting studs on the Link CX should line up with the four slide clips on the bracket as shown in Figure 4-13. When the Link CX is equipped with an integral antenna, make sure that the antenna is properly polarized as described in the previous section. IW099205 Figure 4-12 54 Attaching a 5.
28 Secure the Link CX to the bracket using the four (4) slide clips on the bracket as shown in Figure 4-13. Press in until snapped onto stud (x4) IW099206 Figure 4-13 Locking the Slide Clips The Link CX is now connected to the mounting pole and coarsely aligned, if equipped with an integral antenna. Continue with Section 4-4.
4-4 External Antenna Installation (Optional) This section is only used when you are installing a Link CX with an external antenna. If you are installing a Link CX with an integral antenna, skip this section and continue with Section 4-5. Installation, maintenance and removal of antenna systems requires qualified, experienced personnel. interWAVE installation instructions have been written for such personnel.
Figure 4-14 Four Foot (122 cm) Antenna Table 4-3 Four Foot Diameter Antenna Dimensions Installing the Link CX 57
Figure 4-15 Mount Configuration Unpacking and Preparation 31 Carefully unpack the reflector, mount, shroud (if any), radome (if any) and feed from the crate. For correct antenna performance, handle all components with care. Set aside the packaged feed and any shroud or radome. See Figure 4-16 through Figure 4-19. Caution: The reflector spinning has been formed to a very close-toleranced parabolic shape.
Table 4-5 Contents List, Feed Assembly Figure 4-16 Mounting Hardware Packed Figure 4-17 Mounting Hardware Unpacked Installing the Link CX 59
Table 4-6 60 Contents List, Mount Assembly Link CX User Manual, Version A
Table 4-7 Contents List, Mount Assembly Figure 4-18 Parabolic Reflector Installing the Link CX 61
Figure 4-19 Unpacking the Radome Mount Assembly and Attachment 33 The reflector should be placed face down, either on the shroud or blocked up on packing lumber. Locate the Top and Bottom markings stenciled onto the back of the reflector. 34 Loosely attach Top Support Angles to the Horizontal Tube Assembly as shown in Figure 4-20 and Figure 4-21.
Figure 4-20 Antenna Mount Assembly Figure 4-21 Antenna Mount Assembly Installing the Link CX 63
Figure 4-22 Elevation Rod Assembly Feed Installation Following the instructions provided with the feed assembly, install the feed in the reflector. See Figure 4-23 through Figure 4-27.
Figure 4-24 Feed Horn Polarization Markings Figure 4-25 Parabola Rear View Showing Polarization Reference Markers Figure 4-26 Feed Horn Installation Installing the Link CX 65
Figure 4-27 Feed Horn Installation for Vertical Polarized Operation Radome Installation Molded radomes (normally optional on standard antennas) should be installed following the instructions provided. Azimuth Adjustment Clamp/Shear Stop Installation Figure 4-28 66 39 Verify proper assembly of the azimuth clamp/shear stop clamp as shown in Figure 4-28 and Figure 4-29.
Figure 4-29 Azimuth Adjustment Clamp Assembly Antenna Hoisting and Installation 41 Attach a hoist strap around the vertical assembly or the horizontal assembly as shown in Figure 4-30. Do not hoist by the elevation rod. Make sure that the vertical assembly is unobstructed where it will mount against the mast pipe. 42 Attach tag lines and carefully lift the antenna into position, resting the vertical assembly on the shear stop clamp. 43 Fasten the mount to the mast pipe with 1/2” U-bolts.
Figure 4-30 Hoisting the Antenna 44 Figure 4-31 68 Radome Panel Rotation -- Ensure that the radome drain and lock nut are oriented downward for proper drainage (refer to Figure 4-31). When finished, fasten the locking nut(s).
Inspection and Maintenance 45 Before leaving the installation, check that all hardware on the mount, shroud, radome, and feed is tight and that nuts are locked in place. 46 Inspect the antenna at least once a year to check its condition and to insure safe operation and maintenance. Qualified personnel, knowledgeable and experienced in antenna installations, are required for this inspection.
4-5 Completing the Link CX Installation The Link CX and associated antenna are now mounted on the pole, and coarse-aligned with the far-end antenna. Continue with the following steps to complete the Link CX installation. 4-5.1 Mounting the Lightning Arrestor interWAVE strongly recommends that you use a lightning arrestor, such as the Transtector Lightning Arrestor Kit, at the cable entry to the power, DS-3 and/or Ethernet equipment structure.
• • • Because the radio link has not yet been established, the RF LINK LED should be off. When the DS-3 equipment is or is not transmitting data to the Link CX, the DATA LED should be on or off, respectively. When the Ethernet equipment is transmitting data to the Link CX, the ENET 1 and/or ENET 2 LEDs should be on or flashing. When the Ethernet equipment is not transmitting data to the Link CX, the ENET 1 and/or ENET 2 LEDs should be off or flashing as local data is received.
Grounding Lug Customer-Supplied Grounding Wire or Tape To Earth Ground IW094202 Figure 4-32 Connecting an Earth Ground to the Link CX 55 If the Link CX is equipped with an external antenna, follow the guidelines in Appendix 4 and connect a customer-supplied solid wire or tape (not braided) grounding wire to the grounding lug on the back of the antenna. Connect the other end of this wire to a proper grounding point. 4-5.
Continue with Section 4-6 to fine tune the antenna’s azimuth and elevation. 4-6 Aligning the Antenna This section includes steps used to fine tune the antenna alignment using RSSI as measured using a voltmeter. This part of the installation procedure is most easily accomplished with installers at each end of the radio link who are in communication with one another. Failure to follow this antenna alignment procedure may damage your equipment and may render the radio unusable.
34 n.m). Peak the alignment for maximum voltage at the remote antenna. Expected voltage is more than +1 VDC. The adjustment should be slowly tuned through the peak, and reset at the absolute maximum before tightening the bolts. Alignment for each antenna should be alternated at least twice before confirming the final setting. 62 Disconnect the hand-held voltmeter and BNC test lead from the RSSI port. 63 Finger-tighten the RSSI port cap to seal the Link CX case. 64 Recheck the Link CX LEDs.
68 Disconnect the hand-held voltmeter and BNC test lead from the RSSI port. 69 Finger-tighten the RSSI port cap to seal the Link CX case. 70 Recheck the Link CX LEDs. See Figure 4-1 and Table 4-1 for the locations and descriptions of the Link CX LEDs. • • • • When power is properly applied to the Link CX, the PWR/LCL ALARM LED will be on. Because the radio link has been established, the RF LINK LED should be on.
75 Insure that both of the bolts connecting the mount to the Top Support Angles and the pivoting Elevation Angle (refer to Figure 4-20 and Figure 4-22) are just loose enough to allow resisted rotation. 76 Back the outer nuts on the elevation rod away from the bottom mount plate to allow some fine adjustment range. 77 Turn the inside nut (with flat washer) on the elevation rod to adjust the elevation angle. Approximately five turns changes the elevation by 1°.
4-7 Acceptance Testing This section describes the tests used to verify that the Link CX data input circuitry, near-end Link CX radio, radio link, and far-end Link CX radio are installed properly and operating correctly. 82 Table 4-9 Verify that the physical installation is correct. Use Table 4-9 to sign off the individual checks.
83 Table 4-10 Verify that the electrical connections are correct. Use Table 4-10 to sign off the individual checks.
88 Table 4-11 Go to the Test page and verify that the Link CX passes the tests in Table 4-11. Internal Circuit and Radio Link Checklist Checklist Item Verified Inspector Date Does the Link CX input circuitry and DS-3/ Ethernet cabling work properly? (Set up Local + Remote Loopback and verify that the DS-3/ Ethernet equipment is receiving the looped-back signal it is transmitting to the Link CX.
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Five Final Link CX Setup 50000 The user is required to finish configuring the Link CX after physical installation. The Link CX includes a built-in HTML-based web server, which includes configuration, operating, monitoring and test pages. This web server can be accessed locally using a Web browser on a Craft PC, or remotely using any Web browser on the same Ethernet network as the Link CX.
Final Link CX Configuration Obtain a copy of the information entered in Table 3-3, Radio Link Planning Worksheet, and continue with the following steps: 1 Record the RSSI level from Step 85 in Chapter Four for future reference. The Step 85 value is the RSSI level with Automatic Tx Power Control disabled. 2 Connect your computer to the Link CX through the Ethernet equipment connected to the ETHERNET 1 or ETHERNET 2 port.
Six Monitoring and Trend Analysis 60000 Each Link CX and radio link can be monitored through either the built-in Web server or SNMP agent interfaces. 6-1 Built-In Web Server Interface A subset of the SNMP-accessible statistics is available through the Web server interface connected to a web browser over an Ethernet link. These statistics can be read by logging in to display the Monitor page, as shown in Appendix 3. Statistics can be repeatedly sampled using the Web browser reload or refresh feature.
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Seven Troubleshooting the Link CX 70000 This chapter explains how to troubleshoot a Link CX and associated radio link using the LEDs, a local or remote Web browser, or any other method.
7-2 Using the Link CX LEDs Link CX operation can be monitored using the LEDs. The LEDs show general radio link status at a glance. See Figure 1-3 for LED locations on the Link CX radio. The LEDs operate in the following modes.
Appendix 1 Interface Cable Pinouts 10000 A1-1 DS-3 Cable Table A1-1 DS-3 Cable (100587-00X) Link CX IN/OUT TNC Connectors Pin Function 1 DATA IN Shield Wire Color DS-3 Equipment BNC Port Function Pin -- TX 1 GND Foil GND Shield 2 DATA OUT -- RX 2 Shield GND Foil GND Shield IW099208 A1-2 Ethernet Data Cable Table A1-2 10/100 Ethernet Data Cable (100652-00X) Link CX ETHERNET 1/2 Connectors Pin Function 1 RX+ 2 Wire Color Ethernet Equipment RJ-45 Port Function Pin White/O
A1-3 DC Power Cable Table A1-3 DC Power Cable (100653-00X) To Link CX POWER (4-pin Circular) Pin Function 1 -V in 2 Wire Color To DC Power Supply Function Wire White -V out White -- -- RS-232 TX -- 3 -- -- RS-232 RX -- 4 +V in Red RS-232 GND Red IW099210 A1-4 Ethernet Crossover Cable Table A1-4 10/100 Ethernet Crossover Cable (100655-001) Link CX ETHERNET 1/2 Connectors Pin Function 1 RX+ 2 Wire Color Link CX ETHERNET 1/2 Connectors Function Pin White/Orange TX+ 3 RX
A1-5 External Antenna Cable Table A1-5 Antenna Cable (AC100008) Link CX N-Type Connector Pin Function 1 TX/RX Shield GND Wire Color Antenna N-Type Connector Function Pin -- TX/RX 1 -- GND Shield IW099213 A1-6 RS-232 Craft Cable Table A1-6 RS-232 CLI Craft PC Cable (100586-001) To Link CX TEST (4-pin Circular) Pin Function 1 N/C 2 Wire Color To Craft PC Serial DB-9 Port Function Pin -- N/C -- RS-232 RX Red RS-232 TX 3 3 RS-232 TX Black RS-232 RX 2 4 RS-232 GND Yellow
A1-7 StreamNet ATM Switch Cable Table A1-7 StreamNet DS-3 Cable (100588-003) Link CX IN/OUT TNC Connectors Pin Function 1 DATA IN Shield Wire Color StreamNet DS-3 TNC Port Function Pin -- TX 1 GND Foil GND Shield 2 DATA OUT -- RX 2 Shield GND Foil GND Shield IW099211 90 Link CX User Manual, Version A
Appendix 2 Technical Specifications 20000 A2-1 Link CX Radio Table A2-1 Link CX-DSX DS-3 or Ethernet Version (5.3 GHz) General Frequency Range 5.25-5.35 GHz Compliance (USA) FCC Rules Part 15.407, U-NII Capacity Full-duplex DS-3, per Bellcore GR-499-CORE, or 45 Mbps Ethernet, per IEEE 802.3 Emission Bandwidth (at 26 dB) 13.9 MHz Channel Center Frequencies • Channel 1 (Tx Low/Rx High) • Channel 2 (Tx High/Rx Low) Transmit--5.262 GHz/Receive--5.322 GHz Transmit--5.322 GHz/Receive--5.
Table A2-1 Link CX-DSX DS-3 or Ethernet Version (5.3 GHz) (continued) Receiver Type Double Heterodyne Error Correction FEC Reed Solomon Decoding Sensitivity at 10-6 BER -78 dBm state guaranteed Typical Unfaded BER 10-10 Frequency Stability +/- 5 ppm Channel Frequency Selection Software-controlled Maximum Receive Level without Receiver Degradation -35 dBm Maximum Receive Level without Receiver Damage -30 dBm DS-3 Interface Type Full-duplex DS-3, per Bellcore GR-499-CORE Line Rate 44.
Table A2-1 Link CX-DSX DS-3 or Ethernet Version (5.
Table A2-2 Link CX-DSX DS-3 or Ethernet Version (5.8 GHz) General Frequency Range 5.725-5.825 GHz Compliance Complies with FCC Ruling Part 15.247 Capacity Full-duplex DS-3, per Bellcore GR-499-CORE, or 45 Mbps Ethernet, per IEEE 802.3 Emission Bandwidth 16 MHz Channel Center Frequencies • Channel 1 (Tx Low/Rx High) • Channel 2 (Tx High/Rx Low) Transmit--5.737 GHz/Receive--5.797 GHz Transmit--5.797 GHz/Receive--5.737 GHz Transmit--5.753 GHz/Receive--5.813 GHz Transmit--5.813 GHz/Receive--5.
Table A2-2 Link CX-DSX DS-3 or Ethernet Version (5.8 GHz) (continued) Maximum Receive Level without Receiver Degradation -35 dBm Maximum Receive Level without Receiver Damage -30 dBm DS-3 Interface Type Full-duplex DS-3, per Bellcore GR-499-CORE Line Rate 44.
Table A2-2 Link CX-DSX DS-3 or Ethernet Version (5.8 GHz) (continued) Environmental Ambient Temperature Range • Operational • Storage -33 to +60°C (-27 to +140°F) -40 to +85°C (-40 to +185°F) Relative Humidity • Operational • Storage 100%, all weather protection 95%, noncondensing Altitude • Operational • Storage 15,000 ft. AMSL (4,500m) 50,000 ft. AMSL (15,000m) Mechanical Height (HxWxD) • With External Antenna • With Integral Connector 30 x 30 x 10 cm (12 x 12 x 4 in.) 30 x 30 x 10.
A2-2 Factory-Supplied Antennas This chapter describes specifications for the integral Link CX antenna, and the three factory-supplied antennas. Specifications for customer-supplied antennas are to be supplied by the antenna manufacturer. Table A2-3 5.3 GHz and 5.8 GHz Integral Flat Panel Antenna Size 30 x 30 x 1.9 cm (12 x 12 x 0.75 in.
Table A2-4 61 cm (2 ft.) 5.8 GHz Parabolic Antenna (Note) Size 61 cm (2 ft.) round parabolic with integral radome Mounting Independent mounting Polarization Horizontal or vertical, depending on mounting position Forward Gain 28.1 dBi Front/Back Ratio 38 dB Beam Width 6° Elevation Adjustment ± 15° Azimuth Adjustment 360° Mounting Bracket Pole Capacity 4.43 - 11.4 cm (1.75 - 4.5 in.) Connector to Link CX Coaxial 50 Ohm Female N-Type Factory-Supplied Coaxial Cable to Link CX 2 m (6.6 ft.
Appendix 3 Using the Web-Based GUI User Interface 30000 The Link CX includes its own HTML-based installation, operation and test Web pages, which can be accessed locally using a Web browser on a Craft PC, or remotely using any Web browser on the same network as the Link CX.
There may be a password required to access the Web pages, if enabled by the owner.
Figure A3-2 Link CX Monitor Web Page Using the Web-Based GUI User Interface 101
Figure A3-3 102 Link CX Commission Radio Web Page Link CX User Manual, Version A
Figure A3-4 Link CX Commission Manager Web Page Using the Web-Based GUI User Interface 103
Figure A3-5 104 Link CX Test Web Page Link CX User Manual, Version A
Figure A3-6 Link CX Update Software Web Page Using the Web-Based GUI User Interface 105
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Appendix 4 Grounding and Lightning Protection 40000 This appendix explains how to properly set up the Link CX radio and associated antenna for grounding and lightning protection. It contains the following sections: • Section A4-1, Overview • Section A4-2, Grounding • Section A4-3, Lightning Protection • Section A4-4, Bibliography interWAVE strongly recommends that you install a Transtector Lightning Arrestor or equivalent at the cable entry to the Ethernet, Power, and/or DS-3 equipment structure.
In most cases, following the local code requirements for grounding and lightning protection will be adequate. A4-2 Grounding A4-2.1 Making a Grounding Plan A grounding plan should be developed at the outset of site design to provide the best grounding procedures and to minimize ground loop currents.
A4-3 Lightning Protection Radio sites can be particularly prone to lightning strikes by virtue of their normally exposed locations and the presence of relatively tall antenna support structures. It is not possible to provide and guarantee complete protection from the effects of lightning; however, risks of this sort can be significantly reduced by careful attention to grounding, protection devices, and the layout of the site itself.
Ground-mounted support structures should be connected at their base to a ground ring through sacrificial ground lugs. Towers should have a connection from each leg. A ground ring should consist of copper cable or solid copper tape, with ground rods equally spaced at 2-m intervals around the base of the structure as close to it as possible. The ground ring is buried approximately 0.6 m deep where soil conditions allow.
Appendix 5 Enterprise MIBs and Traps 50000 This appendix contains information about the three different sets of Link CX Management Information Bases (MIBs), their current listings, and where to find the most current versions. A5-1 Enterprise MIB A5-1.1 Overview The Link CX Enterprise MIB consists of the following groups of objects: • link_cx_identity group: Model, revision, serial numbers, and channel frequency table. Configured in the factory. Read-only by the customer.
link_cx_reboot link_cx_trap OBJECT IDENTIFIER ::= { wavenet_link_cx 5} OBJECT IDENTIFIER ::= { wavenet_link_cx 6} -- link_cx_identity group unitModelNumber OBJECT-TYPE SYNTAX DisplayString (SIZE (0..15)) ACCESS read-only STATUS mandatory DESCRIPTION "The model number of the unit as a whole." ::= { link_cx_identity 1} unitRevisionNumber OBJECT-TYPE SYNTAX DisplayString (SIZE (0..15)) ACCESS read-only STATUS mandatory DESCRIPTION "The revision number of the unit as a whole.
rfFrequencyTable OBJECT-TYPE SYNTAX SEQUENCE OF RfChannelFreqEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "The table of 2 selectable Tx/Rx frequency channel pairs, in MHz. The receive frequency on a Tx-high unit is lower than the transmit frequency by the amount of the Tx/Rx separation. Conversely, the receive frequency on a Tx-low unit is higher than the transmit frequency by the amount of the Tx/Rx separation.
DESCRIPTION "The receive frequency in MHz." ::= { rfFrequencyEntry 3} -- link_cx_configuration group rfTxAttenuateControl OBJECT-TYPE SYNTAX INTEGER { enabled(1), disabled(2) } ACCESS read-write STATUS mandatory DESCRIPTION "If enabled, attenuates the transmit output level by 40 dB." ::= }link_cx_configuration 1} rfAtpcControl OBJECT-TYPE SYNTAX INTEGER { enabled(1), disabled(2) } ACCESS read-write STATUS mandatory DESCRIPTION "Automatic Tx Power Control mode can be enabled or disabled.
Automatic Tx Power Control information." ::= }link_cx_configuration 4} rfChannel OBJECT-TYPE SYNTAX INTEGER (1..2) ACCESS read-write STATUS mandatory DESCRIPTION "The current transmit channel of the local unit. The transmit frequency in MHz for each channel can be read in the rfFrequencyTable." ::= }link_cx_configuration 5} rfRssiAlarmThresholdSetting OBJECT-TYPE SYNTAX INTEGER (-80..
indicates the receive signal level is below the detection level." ::= }link_cx_status 2} bitErrorRate OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "The estimated bit error rate (BER), in errors per 10^8 bits. A returned value of 0 indicates zero bit errors in 10^8 bits. A returned value of 1 indicates an estimated BER of 1x10^-8. A returned value of 10 indicates an estimated BER of 1x10^-7, and so on.
A value of 1 indicates the Rx synthesizer is locked. A value of 2 indicates the Rx synthesizer is unlocked" ::= }link_cx_status 6} lowTxPowerAlarmStatus OBJECT-TYPE -- local alarm condition SYNTAX INTEGER { normal(1), alarm(2) } ACCESS read-only STATUS mandatory DESCRIPTION "A value of 1 indicates the Tx power at the antenna port is greater than or equal to -14 dBm. A value of 2 indicates the Tx power at the antenna port is less than -14 dBm.
ACCESS read-only STATUS mandatory DESCRIPTION "A receiver overload alarm will be generated if the level of RSSI is at or above -40 dBm. A value of 1 indicates the received signal level is below -40 dBm. A value of 2 indicates the received signal level is at or above -40 dBm. This alarm is only valid if the Rx synthesizer is locked.
rfLocalLoopbackTimer OBJECT-TYPE SYNTAX INTEGER (0..1800) ACCESS read-write STATUS mandatory DESCRIPTION "When this value is greater than zero, the radio is in the local loopback mode. The RF transmit signal on the local unit is converted to the receive frequency of the local unit so it can be received by the local unit, for the chosen period of time in seconds.
ACCESS read-write STATUS mandatory DESCRIPTION "When enabled, pseudo-AIS (constant mark or all ones at the DS3 interface) will be generated." ::= }link_cx_test 6} -- link_cx_reboot group softwareVersionBank1 OBJECT-TYPE SYNTAX DisplayString (SIZE (0..15)) ACCESS read-only STATUS mandatory DESCRIPTION "The software version in bank one." ::= }link_cx_reboot 1} softwareVersionBank2 OBJECT-TYPE SYNTAX DisplayString (SIZE (0..15)) ACCESS read-only STATUS mandatory DESCRIPTION "The software version in bank two.
ACCESS read-only STATUS mandatory DESCRIPTION "Total number of enterprise traps sent since last reboot.
An alarmTrap trap might result from this procedure." ::= 3 END A5-2 Enterprise Traps Link CX supports three enterpriseSpecific traps - alarmTrap, configurationChangeTrap, and unitTestTrap. Each of these traps contains all the relevant variables for that particular trap, in order to minimize polling. One variable that is in each of the traps is a counter, so that the network management application can detect loss of traps. A5-2.
• Tx power setting • ATPC peer IP address (IP address of the CX at the other end of the radio link) • channel number • RSSI alarm threshold • DS3 LOS control (enable/disable alarm for LOS) A5-2.3 unitTestTrap Link CX sends this trap when any of the test variables change, either at the start or at completion of a test. All the test state variables are contained in the trap PDU, along with the trap counter.
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Index 60000 A antennas grounding antenna feeders 108 grounding support structures 108 B beam clearance envelope at midpath 26 E error messages monitoring 84 G grounding antenna feeders 108 buildings 108 lightning, see lightning protection I interWAVE return materials authorization (RMA) xiv sales operations xiv training xiv ITU bibliography 110 L lightning protection grounding antenna support structures 109 importance of 109 lightning conductors 109 purposes 109 Link CX overview 1 Index 125
M messages SNMP monitoring error 84 monitoring and trend analysis error messages and traps 84 Web browser interface SNMP network management stations 83 N network management stations, see SNMP R return materials authorization (RMA) xiv RMA xiv S sales operations xiv SNMP alarm messages 84 network management stations 83 traps 84 T The "Grounds" for Lightning and EMP Protection 110 training xiv traps, SNMP 84 Troubleshooting 85 126 Link CX User Manual, Version A
Notes: Notes
* * * * * * * * * * * * * * * * * * This is the last page of this document. This notice complies with ISO9001 requirements and ensures the reader is working from a complete document. * * * * * * * * * * * * * * * * * * interWAVE Communications, Inc. 312 Constitution Drive Menlo Park, CA, USA 94025 Phone: 1.650.838.2000 www.iwv.
