INSTALLATION GUIDE FOR RD-2020 RD-2020 CDMA AWS BANDWIDTH ADJUSTABLE REPEATER INSTALLATION GUIDE The information contained herein is the responsibility of and is approved by the following, to whom all enquiries should be directed in the first instance: Comba Telecom Ltd. This is an unpublished work the copyright in which vests in Comba International ("Comba"). All rights reserved.
INSTALLATION GUIDE FOR RD-2020 0.2 CONTENTS Section Page 0.2 0.3 0.4 0.5 0.6 CONTENTS ...........................................................................................................................2 INDEX TO FIGURES AND TABLES .....................................................................................3 HISTORY ...............................................................................................................................4 GLOSSARY OF TERMS............................
INSTALLATION GUIDE FOR RD-2020 0.3 INDEX TO FIGURES AND TABLES Figure 1: Front, Side and Bottom Views of Enclosure ................................................................................... 7 Figure 2: Functional Diagram ......................................................................................................................... 8 Figure 3: Layout of Equipped Product............................................................................................................
INSTALLATION GUIDE FOR RD-2020 0.4 HISTORY Change No. ENU Details Of Change 1 1-0-0 This manual first created in July 2010.
INSTALLATION GUIDE FOR RD-2020 0.
INSTALLATION GUIDE FOR RD-2020 0.6 SAFETY NOTICES AND ADMONISHMENTS This document contains safety notices in accordance with appropriate standards. In the interests of conformity with the territory standards for the country concerned, the equivalent territorial admonishments are also shown. Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained, authorised personnel. At all times, personnel must comply with any safety notices and instructions.
INSTALLATION GUIDE FOR RD-2020 1 GENERAL INFORMATION The RD-2020 CDMA AWS bandwidth adjustable repeater is designed for operation in the CDMA network for AWS band. Band specific linear amplifier and filtering effectively amplifies the desired Node B carrier and provides superior out-of-band rejection. Typical units with adjustable bandwidth are programmed to specific requirements of the network.
INSTALLATION GUIDE FOR RD-2020 2 EQUIPMENT DESCRIPTION 2.1 RD-2020 FUNCTIONAL BLOCK DIAGRAM Figure 2: Functional Diagram In the downlink, the BTS signals are received by donor antenna of the equipment. After the duplexer, the signals are sent to the LNA module for pre-amplification, followed by band selection using the Frequency Selection (FS) modules. The power amplifiers (PA) can amplify all carriers within the passband to the maximum output power permitted.
INSTALLATION GUIDE FOR RD-2020 Door Open Switch DL PA UL FS Module UL PA DL FS Module 2.
INSTALLATION GUIDE FOR RD-2020 2.3 EQUIPMENT CONSTITUTION The RD-2020 consists of the following modules: Frequency Selection (FS): The FS is used to select the desired carriers and reject unwanted signals. Power Amplifier (PA): It fulfils power amplification in both UL and DL branches. Duplexer (DPX): The DPX is located towards the DT and MT terminals and permits the uplink and downlink signals to share a common antenna. One LNA is integrated in each DPX.
INSTALLATION GUIDE FOR RD-2020 2.4 KITS OF PART For this system, the following are shipped: Product Identifier Description Quantity Allen Key 5.
INSTALLATION GUIDE FOR RD-2020 3 INSTALLATION 3.1 WARNINGS AND ALERTS Radio Frequency Energies There may be situations, particularly for workplace environments near high-powered RF sources, where recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases, restrictive measures or actions may be necessary to ensure the safe use of RF energy. High Voltage The equipment has been designed and constructed to prevent, as far as reasonably, practicable danger.
INSTALLATION GUIDE FOR RD-2020 3.2 SITE PLANNING CONSIDERATIONS Site Considerations Outdoor equipment are designed to be waterproof, rainproof, and with snow protection. Temporary protection should be taken when the equipment enclosure is opened for installation or maintenance in an outdoor environment. The equipment must not be opened for installation or maintenance in bad weather (e.g. gale, storm rainfall, extreme temperatures and high humidity).
INSTALLATION GUIDE FOR RD-2020 3.2.1 INSTALLATION CHECKLIST • Working space available for installation and maintenance for each mounting arrangement. Ensure unrestricted airflow. • Ensure earthing point is within reach of the ground wire. • Ensure a power source is within reach of the power cord and the power source has sufficient capacity (about 10A for 220/110VAC, 20A for +24VDC, 10A for -48VDC). • Where appropriate, ensure unused RF connectors are terminated.
INSTALLATION GUIDE FOR RD-2020 3.3 INSTALLATION PROCEDURES 3.3.1 GOODS INWARDS INSPECTION • • • • Verify the number of packages received against the packing list. Check all packages for external damage and report any external damage to the shipping courier. If damage occurs, a shipping agent should be present before unpacking and inspecting the contents because damage caused during transit is the responsibility of the agent. Open and check each package against the packing list.
INSTALLATION GUIDE FOR RD-2020 3.3.4 LIFTING LUG INSTALLATION This is provided to facilitate lifting and positioning of the equipment during installation. The lifting lug is to be attached to the rear of the appropriate enclosure as shown below. Lifting Lug Spring Washer M6 Hex Bolt M6x12 Figure 5: Attach the Lifting Lug to the Enclosure 3.3.5 WALL MOUNTING DETAILS • • Drill four holes on the wall using the position of the four round holes in the mounting rack as a guide.
INSTALLATION GUIDE FOR RD-2020 3.3.6 POLE MOUNTING DETAILS • • • The equipment can be mounted on poles of about 60~75mm in diameter. Secure the mounting rack onto the pole using M12x160mm carriage bolts and clamps through the square holes. Tighten and lock M12 nuts together onto the carriage bolts.
INSTALLATION GUIDE FOR RD-2020 3.3.7 ATTACHING EQUIPMENT ONTO MOUNTING RACK • Located on the rear of the equipment enclosure are protruding vertical cooling fins. • The two outer fins are designed for mounting the equipment onto the mounting rack; each of these fins has steel threaded inserts already fitted. • Partially thread the hex socket bolts onto the steel threaded inserts identified in the following drawing as: ‘1’ and ‘4’.
INSTALLATION GUIDE FOR RD-2020 3.4 EQUIPMENT CONNECTORS The equipment has been designed for all cable entries from the bottom of the enclosure, as shown in the following figure: DT LAN MT EXT_ALM POWER Figure 9: Equipment Connectors Identifier Descriptions DT N-Female connector for connection to donor antenna MT N-Female connector for connection to service antenna LAN Ethernet connector for connecting with Internet. EXT_ALM POWER 1 7-pin round connector for external alarm connection.
INSTALLATION GUIDE FOR RD-2020 Such a ground connection implements the “Protective Ground Connection”, and must be connected to the equipment at the designated ground point. In general, do not connect the supply before establishing an adequate ground (earth) connection. Construct the ground wire, and use appropriate crimp connectors where necessary. Locate and connect the equipment grounding terminal to a protective ground (i.e. building earth point). 3.5.
INSTALLATION GUIDE FOR RD-2020 3.5.5 EXT_ALM CONNECTION Four alarm INPUT to RD-2020 are realized on the EXT_ALM port, this is a 7-pin round connector. The following figure and table shows the pin allocation and definition. Pin numbering are shown looking-into the connector on the enclosure. 1 3 6 2 4 5 7 Figure 10: Pins Allocation for 7-pin EXT-ALM Connector Pin number 1 2 3 4 5 6 7 Alarm definition EXT. Alarm 1 EXT. Alarm 2 EXT. Alarm 3 GND EXT.
INSTALLATION GUIDE FOR RD-2020 Figure 11: RJ45 Waterproof Cable Plug RD-2020 CDMA QI ENU Status : 1-0-0 Copyright - refer to title page Page 22
INSTALLATION GUIDE FOR RD-2020 3.6 PREPARATION FOR REMOTE CONTROL OF EQUIPMENT USING MODEM Wireless Modem (Optional) For the equipment variant equipped with wireless modem, the modem provides the option of remote connection of the equipment to the OMT. The wireless (GSM) modem implements the link for data and SMS. Note: When CDMA modem is used, only SMS function is supported to retrieve alarm information and to provide remote control.
INSTALLATION GUIDE FOR RD-2020 4 COMMISSIONING 4.1 PRE-COMMISSIONING After equipment installation, perform the following steps before equipment powering and commissioning. Verify the incoming power source voltage, current, and power levels do not violate any ratings. Double check all connections before applying power. Do not manipulate circuits or make changes with power applied. • • • • • Visually inspect the power connection within the equipment.
INSTALLATION GUIDE FOR RD-2020 4.3 WEB OMT 4.3.1 CONNECTION FROM PC TO EQUIPMENT Before accessing to the OMT, physical connection between the OMT software and the equipment must be made. A straight-through RJ45 cable shall be applied for the connection. In order to access to equipment by IP protocol, the PC must be set with proper IP address, subnet mask and gateway. Figure 14: PC Protocol Setting The default IP address of repeater is 192.168.1.2, and default gateway is 192.168.1.1.
INSTALLATION GUIDE FOR RD-2020 Items PC IP Address PC Subnet Mask PC Gateway Repeater IP Address Repeater Gateway User name Password Default Value 192.168.1.X (X=3~254) 255.255.255.0 192.168.1.1 192.168.1.2 192.168.1.1 admin (Capital sensitive) admin (Capital sensitive) Table 6: IP Setting Quick Look-up Table If the user name and password have been entered properly, then the OMT webpage will be shown as below.
INSTALLATION GUIDE FOR RD-2020 User can access to different sub-titles on the left part of the page. The “Equipment Information” page contains basic information of the repeater such as firmware version, product model, serial No. etc. Note: The IP network parameters of the repeater can be modified from this page.
INSTALLATION GUIDE FOR RD-2020 Figure 21: Current Status 4.4 COMMISSIONING PROCEDURE System commissioning can commence after the monitoring system has completed self initialization.
INSTALLATION GUIDE FOR RD-2020 Commissioning Tasks 1. On-line and Inquiry status 2. Set Channel No. 3. Adjust Downlink Output Power and align donor antenna 4. Configure [Equipment ID] 5. Comm. Config 6. Select Monitoring Parameters 7. Test coverage area field intensity and adjust service antenna. 8. Verify UL gain and ensure test call produces good voice quality and there is no interfering BTS Observation Connect to repeater from PC via OMT.
INSTALLATION GUIDE FOR RD-2020 5 MAINTENANCE The system is designed for trouble-free operation and generally does not need maintenance. Maintenance activities should only be carried out by trained personnel. The equipment operation status can be observed remotely through the OMT/OMC. Periodic inspection of the equipment(s) is recommended. The recommended tasks include: • • • • • • • • • Measurement of the return loss of the feeder system.
INSTALLATION GUIDE FOR RD-2020 6 APPENDICES 6.1 APPENDIX A: TOOLS AND EQUIPMENT FOR INSTALLATION The following are the recommended list of tools for new installation and routine maintenance: • • • • • • • • • Slotted screwdriver Philips screwdriver Ring spanner (Assorted size: 12~20mm) Electrically operated drill and masonry drill bits ∅12mm Anti-static wrist strap Allen key (M5.5) Side Cutter Frequency counter (e.g. FLUKE PM6685R) RF Power Meter (e.g.
INSTALLATION GUIDE FOR RD-2020 6.2 APPENDIX B: SERVICING POLICY AND RETURN OF EQUIPMENT The repair of individual units and modules of this equipment is not considered practicable without factory facilities. It is, therefore, the policy of Comba whereby faulty units or modules are returned to the local agent for repair. To enable an efficient, prompt after sales service to be provided for the diagnosis, repair and return of any faulty equipment, please comply with the following requirements.
INSTALLATION GUIDE FOR RD-2020 6.
