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Huawei Airbridge cBTS3612 Maintenance Manual

Huawei Airbridge cBTS3612 Maintenance Manual

Cdma base station
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Huawei Technologies Co., Ltd.
Administration Building, Huawei Technologies Co.,
Ltd., Bantian, Longgang District,
Shenzhen, P. R. China
Postal Code: 518129
Website:
http://www.huawei.com
BOM: 31033171

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Summary of Contents for Huawei Airbridge cBTS3612

  • Page 1 Huawei Technologies Co., Ltd. Administration Building, Huawei Technologies Co., Ltd., Bantian, Longgang District, Shenzhen, P. R. China Postal Code: 518129 Website: http://www.huawei.com BOM: 31033171...
  • Page 3 Airbridge cBTS3612 CDMA Base Station On-site Maintenance Manual...

  • Page 4: Table Of Contents

    On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Table of Contents 　 Table of Contents Chapter 1 Daily Maintenance ........... 1-1 1.1 Base Station Configuration ..........1-1 1.2 Maintenance Instructions ..........1-8 Chapter 2 General Fault Processing ........2-1 2.1 MS Access Network Failure ........... 2-1 2.1.1 Fault Description ..........
  • Page 5 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Table of Contents 　 3.2.1 Fault Description ..........3-5 3.2.2 Troubleshooting ..........3-5 3.3 BTS Control Interface Module (BCIM)......3-8 3.3.1 Fault Description ..........3-8 3.3.2 Troubleshooting ..........3-8 3.4 BTS Control & Clock Module (BCKM) ......3-10 3.4.1 Fault Description ..........
  • Page 6 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Table of Contents 　 3.12 Satellite Antenna and Feeder ........3-28 3.12.1 Fault Description ..........3-28 3.12.2 Troubleshooting..........3-28 Chapter 4 Component Replacement ........4-1 4.1 Common Procedure of Replacement ......4-1 4.1.1 Board Replacement ..........
  • Page 7 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Table of Contents 　 5.8 Power Supply Unit (PSU)..........5-7 5.9 Base station Power & Lightening protection Lamp Indicator board (BPLI)............... 5-8 5.10 BTS Fan Monitor Module (BFMM) ........ 5-9 Chapter 6 Switches & Interfaces..........6-1 6.1 BTS Control Interface Module (BCIM)......

  • Page 8: Chapter 1 Daily Maintenance

    On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Chapter 1 Daily Maintenance　 1.1 Base Station Configuration　 Base station configuration includes site configuration, antenna and feeder configuration and cabinet configuration. Please refer to Table 1-1 for details about site configuration, Table 1-2 about antenna and feeder configuration, and Figure 1-1, Figure 1-2, Figure 1-3, Figure 1-4 and Table 1-3 about cabinet configuration　...
  • Page 9 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Table 1-2 Antenna and feeder configuration and radio frequency indexes　 Contents　 Remarks　 Item　 Sector Sector Sector Sector Sector Sector 　 1　 2　 3　 4　 5　 6　 Carrier transmit 　...
  • Page 10 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 be left blank). Since the extension cabinet has no baseband subrack, it can be ignored. Additionally, Table 1-3 also needs to be completed, which is to make supplemental description of some of the boards or modules,...
  • Page 11 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Switch Box The baseband part is specified in Figure1-2 basebandpart is specified in Figure 2 Baseband subrack Fan subrack Power subrack RF subrack RLDU subrack CDU/DFU subrack RF subrack Figure 1-1 Basic cabinet configuration　...
  • Page 12 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 0 1 2 3 4 5 6 7 8 11 12 13 14 15 16 1718 19 20 21 Figure 1-2 Configuration of baseband subrack of basic cabinet 　...
  • Page 13 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Switch Box The baseband subrack of the extension cabinet basebandpart is specified in Figure 2 Baseband subrack has no board configuration, leave it blank. Fan subrack Power subrack...
  • Page 14 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Switch Box The baseband subrack of the extension cabinet basebandpart is specified in Figure 2 Baseband subrack has no board configuration, leave it blank. Fan subrack Power subrack...

  • Page 15: Maintenance Instructions

    On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Table 1-3 Supplemental description of cabinet configuration　 Item　 Contents　 Remarks　 Specify whether the DIP 　 switch and jumper are for 120 Ù twisted pair line or for 　...
  • Page 16 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Equipment room environment check　 Table 1-4 Equipment room environment check　 Items　 Instructions　 Caution-demanding issues　 Anti-theft Check if there is any sign of burglary or 　 measures 　...
  • Page 17 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Cabinet interior check　 Table 1-5 Cabinet Interior check Caution-demanding Items　 Instructions　 issues　 1. Check if the baseband subrack fan is running properly. 　 Fans 　 1. To judge if the parts 2.
  • Page 18 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Power supply check　 Table 1-7 Power supply check　 Items　 Instructions　 Caution-demanding issues　 1. Range of input voltage: -40V ~ 1. Use a multimeter to measure the 60V. 　...
  • Page 19 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Chapter 1 Daily Maintenance 　 Antenna and feeder check　 Table 1-9 Antenna and feeder check　 Items　 Instructions　 Caution-demanding issues　 1. Check on the maintenance console whether there is an alarm 1. Antenna and feeder consists...

  • Page 20: Chapter 2 General Fault Processing

    On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing Chapter 2 General Fault Processing 2.1 MS Access Network Failure　 When the MS is powered on, it will go through the following processes: system determination substate, pilot channel acquisition...
  • Page 21 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing 1) The BTS equipment is in a faulty condition, which will result in the BTS start-up failure.　 2) The BTS is not configured with correct parameters, which will also result in the BTS start-up failure.
  • Page 22 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing III. Check if the cell has obtained the BSC logical configuration　 1) If the cell has not obtained the logic configuration, i.e. common channels for pilot frequency, synchronization, paging common channels, etc.
  • Page 23 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing Whether the optical fiber of the BTRM and BRDM is connected properly;　 Whether the BCIM is working properly;　 Whether the Abis signaling link is working properly;　 Whether the BSC is working properly;　...
  • Page 24 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing Check receiving channel　 If we can see from the OMC console the logic configuration for the cell has been completed, but the MS still can not connect to the network, we can then check whether the receiving channel is working properly.
  • Page 25 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing Whether the RLDU is power on and works properly; 　 Whether the RLDU panel configuration selection switch “S/W” is in the correct position. Refer to “Table 6-2 Description of RLDU switches”...
  • Page 26 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing Whether the transmission driving component of the BTRM is working properly; 　 Whether the CDU (or DFU, DDU) is working properly.　 Whether the connection between the BTRM and BHPA is secure;...
  • Page 27 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing and paging channel gain, etc. If these parameters are not properly set (for example: they are set too low), the MS will not be able to capture the common channel and thus will not be able to connect to the network.

  • Page 28: Software Download Failure

    On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing With the help of the air interface signaling analyzer, it can be determined whether the MS has received all the system messages. Also, check whether the value setting in each of the parameters in the message is correct.
  • Page 29 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing configuration errors, etc. We need to locate and eliminate these problems one by one. Refer to “2.4 OML Failure” for details. 　 2) The FTP server in the BAM is not configured correctly. 　...

  • Page 30: Base Station Initialization Failure

    On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing 2.3 Base Station Initialization Failure　 2.3.1 Fault Description 　 When the base station is powered on, the system initialization aborts, which leads to the BTS start-up failure. 　...
  • Page 31 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing Clock failure　 After the BTS successfully establishing the OML, the BSC will release relevant configuration data. At this time some of the boards in the BTS will require correct clock signals to start up properly. As a result, for the initialization failure occurring after the BSC releases the configuration, we need to check the following: 　...

  • Page 32: Oml Failure

    On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing parameters, such as the BTRM ID, cell ID, cell resource pool ID and optical interface ID, etc. Reconfigure those parameters if necessary. 　 Incorrect physical board connection 　...
  • Page 33 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing Failure in communication link between BCKM and BCIM　 Please refer to “Board Communication Link Failure” in the “3.2 Handling of Common Board Failure”. 　 Abnormal IMA group and UNI status 　...
  • Page 34 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing the MAC address field to be unique. If data duplication appears in the VCI information of the CMUX, it will lead to the duplication of MAC address field in the BOOTP request package, and thus result in the BOOTP failure and the OML establishment failure.　...
  • Page 35 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing require the OMC to configure the relevant local BOOTP information. This set of BOOTP information should be unique and in conformity with the data configuration in the BSC. 　...

  • Page 36: Abis Signaling Link Failure

    On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing 2.5 Abis Signaling Link Failure　 2.5.1 Fault Description　 After the BTS start-up, the Abis signaling link between the BTS and BSC can not be established, or there are sometimes broken links when the BTS is running.
  • Page 37 On-site Maintenance Manual Chapter 2 General Fault Airbridge cBTS3612 CDMA Base Station Processing III. BSC failure　 When a BSC failure occurs, the BTS will also generate a “Abis signaling link failure” alarm. 2-18...

  • Page 38: Chapter 3 Component Failure Handling

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling Chapter 3 Component Failure Handling　 3.1 Component Failure Description　 3.1.1 Component Failure Detection　 In this chapter, we will explain how the failure is spotted. The following sections will provide the failure type definition and solutions for the specific components.
  • Page 39 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling External check　 Power supply　 Mainly check if the - 48 DC power input is normal, see “1.2 Maintenance Instructions” for details. 　 Transmission link　 Check if the transmission link between the BCIM of the BTS and the XIE board of the BSC is secure, see “3.3 BTS Control Interface...
  • Page 40 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling Boards　 Check the BCIM and the transmission link - only when these two parts are working properly, can the BTS establish a link with the BSC successfully. 　...
  • Page 41 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling Check the BHPA, CDU (or DFU, DDU) and RLDU and the antenna and feeder system in the transmitting and receiving channels. If a problem is spotted, go to the specific section in which...

  • Page 42: Handling Of Common Board Failure

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.2 Handling of Common Board Failure　 3.2.1 Fault Description　 Common Board Failure includes: 　 Board parameter configuration error; 　 Board communication link failure; 　 Abnormal board temperature; 　...
  • Page 43 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling If the configuration file download fails, the board will not be able to obtain the correct parameter configuration, and thus the BTS will not start up properly. Possible causes of file download failure are: 　...
  • Page 44 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling If other boards are generating alarms at the same time, there may be a problem with the BCKM, refer to “3.4 Control & Clock Module (BCKM)” for solutions. 　...

  • Page 45: Bts Control Interface Module (Bcim)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling Board reset, CPU overusage, emergency serial port link breakage, initialization failure of minor board components, missing CELL BUS clock, abnormally high CELL BUS subrack error rate and CELL BUS driving components failure, etc.
  • Page 46 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling order between the BTS and BSC should be the same), only so can the BTS intercept the IMA/UNI configuration in the BSC. 　 The E1 trunk calbe problem or the connecting order mistakes can be located by the E1 loopback test.

  • Page 47: Bts Control & Clock Module (Bckm)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.4 BTS Control & Clock Module (BCKM)　 3.4.1 Fault Description 　 Failure in establishing OML between the BTS and OMC 　 Failure in establishing Abis signaling link between the BTS and BSC 　...
  • Page 48 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling III. Clock failure　 The CLK unit of the BCKM is responsible for receiving and processing the GPS clock signals. Possible clock unit failures include: hardware failure of the clock module, satellite antenna and feeder system failure, failure in reference clock source driving and master clock unlocked, etc.

  • Page 49: Bts Channel Process Module (Bcpm)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.5 BTS Channel Process Module (BCPM)　 3.5.1 Fault Description　 System clock error 　 Reverse data error in the gigabit ethernet link 　 FPGA status error 　 III.
  • Page 50 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling III. FPGA status error　 For FPGA status errors, reload the FPGA software fi rst. If the problem sustains, it should be the hardware problem in the board.

  • Page 51: Bts Resource Distribution Module (Brdm)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.6 BTS Resource Distribution Module (BRDM)　 3.6.1 Fault Description　 FPGA status error　 The bottom-layer communication link between the BRDM and BTRM is broken　 III. Abnormal clock signal　...
  • Page 52 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling Pull out and replug the optical fiber or replace the BTRM. If the fault still remains, , reset or replace the BRDM. 　 III. Abnormal clock signal　...

  • Page 53: Bts Transceiver Module (Btrm)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.7 BTS Transceiver Module (BTRM)　 3.7.1 Fault Description　 Receiving channel over-excited　 Software phase -lock unlocked　 III. Abnormal forward link power　 Alarm on abnormal reverse signal strength　 RS485 link failure alarm　...

  • Page 54: Troubleshooting

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.7.2 Troubleshooting　 Receiving channel over-excited　 Remove the fault according to the following procedures step by 　 step. If the problem is caused by the external interference, nothing needs to be done to the BTS, but try to reduce the external interference.
  • Page 55 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling Eliminate the BRDM, BCPM and BCKM faults; 　 Replace the BTRM.　 Alarm on reverse signal strength indicator abnormal 　 Abnormal reverse signal strength may block the reverse service link.
  • Page 56 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling If the above problems are not solved after the relevant BTRM has been reset, replace that module. 　 VII. BTS RF fan module failure　 RF fan module failures include: 　...

  • Page 57: Bts High Power Amplifier Unit (Bhpa)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.8 BTS High Power Amplifier Unit (BHPA)　 3.8.1 Fault Description　 No RF signal output 　 Abnormal RF signal output including insufficient output power and excessive output spectrum 　...
  • Page 58 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling Amplifier Over-Excited alarm as well as automatically shut down; If the external alarm conditions are eliminated, the BHPA will resume to the normal working status. 　 b) Power amplifier over-heated alarm: 　...
  • Page 59 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling The fault elimination process should be carried out step by step, go directly to next step if the problem can not be solved: 　 Re-plug the BHPA, make sure it is secured in place and connected to the backplane properly.

  • Page 60: Receive Lna Distribution Unit (Rldu)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling alarm will stop. If the power-amplification gain decrease is within 3~6dB, it is a normal situation whether the alarm is generated or not. 　 We can find out if there is a “Power-amplification gain decrease”...
  • Page 61 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling The fault elimination process should be carried out step by step, go directly to next step if the problem can not be solved: 　 Check if the antenna and feeder are in good condition; 　...

  • Page 62: Power Supply Unit (Psu)

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.10 Power Supply Unit (PSU)　 3.10.1 Fault Description 　 The power module is not working or not working properly 　 The power module fan is not running properly 　...
  • Page 63 On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling III. The voltage of the power output of the power module is too high 　 When the output voltage of the power module is at 30.5!0.5V, the module will shut down automatically and the alarm indicator (Alm) on the power module panel will be on.

  • Page 64: The Rf Antenna And Feeder

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.11 The RF Antenna and Feeder 　 3.11.1 Fault Description 　 The RF antenna and feeder is not working properly　 3.11.2 Troubleshooting　 The RF antenna and feeder failure will generate a standing wave alarm, and there will be no transmit power at the antenna port or the transmit power is too low.

  • Page 65: Satellite Antenna And Feeder

    On-site Maintenance Manual Chapter 3 Component Failure Airbridge cBTS3612 CDMA Base Station Handling 3.12 Satellite Antenna and Feeder 　 3.12.1 Fault Description 　 The satellite antenna and feeder is not working properly　 3.12.2 Troubleshooting　 When satellite antenna and feeder gets faulty, the alarm of antenna open-circuit or the antenna short-circuit will be generated.

  • Page 66: Chapter 4 Component Replacement

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 Chapter 4 Component Replacement 4.1 Common Procedure of Replacement　 4.1.1 Board Replacement　 Preparations for Board Removing　 Alarm query: 　 Before replacing the board, query the BTS alarm from the OMC console and make notes of it.
  • Page 67 On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 The power supply to all the boards in the baseband subrack is controlled by the baseband subrack switch. There are two cases for replacing the boards of baseband subrack: 　...
  • Page 68 On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 touch the surface of the printed circuit board with hands during the process).　 III. Installation Preparations　 Wear grounded wrist straps or gloves.　 Before installing a board, take the board out from the...

  • Page 69: Backplane Replacement

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 cleared and a recovery alarm is generated at the same time. 　 Do a dial-up test with an MS and see if the BTS is working properly. 　...
  • Page 70 On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 Unplug the cables connecting the boards or modules to the backplane and take the boards or modules out. 　 Unplug the backplane cables 　 Unplug the cables on the back of the backplane, such as the data cable, alarm cable, power cable, etc.
  • Page 71 On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 III. Installation preparations　 Before installing the backplane, take the backplane out from the anti-static packing box. Check whether there are any damages such as damaged cables and short-circuit (Do not touch the backplane surface during the process).
  • Page 72 On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 Power on the boards or modules and check their working status 　 Install the metal shielding cover (for baseband backplane only) and the cabinet doors.　 Use a MS to have a dial-up test and see if the conversation...

  • Page 73: Exceptional Procedure Of Replacement

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 4.2 Exceptional Procedure of Replacement 　 & Note: 1. This procedure is based on the “4.1.1 Board Replacement ” .　 2. As we are going to focus on the parts different from the common replacement procedure, be sure to get familiar with the “4.1.1...

  • Page 74: Bts Control & Clock Module (Bckm)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 module), and then switch off the -48V DC output of the AC/DC power supply. 　 After the replacement is finished, toggle on all the switches on an order contrary to the switching-off order. 　...

  • Page 75: Bts Control Interface Module (Bcim)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 Handling clock cables　 Before replacing the BCKM, disconnect the clock cable from the BCKM. Screw the clock cable back onto the panel of the new BCKM after the replacement is finished. 　...

  • Page 76: Bts Resource Distribution Module (Brdm)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 and a “daisy chain” between those boards, the service will not be seriously affected. 　 4.2.5 BTS Resource Distribution Module (BRDM)　 While basically observing the “4.1.1 Board Replacement”, we should also pay attention to the following: 　...

  • Page 77: Power Supply Unit (Psu)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 Heat dissipation　 Replacing the BFAN will have some influence on the heat dissipation of the baseband subrack　 Handling screws　 Keep the BFAN fastening screws in a safe place, as they will be used to fasten the new BFA N.　...

  • Page 78: Bts High Power Amplifier Unit (Bhpa)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 as the board removal & installation and the MS dial-up test, are not applicable to BRFM and thus, can be handled flexibly), we should also pay attention to the following: 　...

  • Page 79: Bts Transceiver Module (Btrm)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 The influence on the service 　 If a certain BHPA does not work properly, we need to switch it off from the BTS switch box before replacing it (note that a switch serves a group of BHPA, BTRM and BRFM)　...

  • Page 80: Receive Lna Distribution Unit (Rldu)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 The influence on the relevant components 　 Before detaching the BTRM, first detach the BRFM to which it corresponds -- see “4.2.8 BTS RF Fan Module (BRFM)” for details about BRFM detachment.

  • Page 81: Duplexer Unit (Cdu, Dfu, Ddu)

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 thus, can be handled flexibly), we should also pay attention to the following: 　 The influence on the service 　 Replacing a RLDU may affect the services transmitted through it.
  • Page 82 On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 The physical structure of CDU is rather different from that of the boards in the baseband subrack, therefore, while basically observing the “4.1.1 Board Replacement” (some processes, such as the board removal &...

  • Page 83: Optical Fiber Replacement

    On-site Maintenance Manual Chapter 4 Component Airbridge cBTS3612 CDMA Base Station　 Replacement 　 4.2.13 Optical Fiber Replacement　 Checking the optical fiber　 Before replacing the optical fiber, check the new fiber carefully in the following ways: 　 Point one end of the optical fiber cable towards the sunlight and observe the other end.

  • Page 84: Chapter 5 Component Indicators

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 Chapter 5 Component Indicators　 5.1 BTS Control & Clock Module (BCKM)　 For details about the BCKM indicators, please see Table 5-1.　 Table 5-1 Description of BCKM indicators　...

  • Page 85: Bts Control Interface Module (Bcim)

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.2 BTS Control Interface Module (BCIM)　 For details about the BCIM indicators, please see Table 5-2. Table 5-2 Description of BCIM indicators　 Indicator　 Color　 Meaning　 Description　 Normal status　...

  • Page 86: Bts Channel Process Module (Bcpm)

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.3 BTS Channel Process Module (BCPM)　 For details about the BCPM indicators, please see Table 5-3. Table 5-3 Descriptions of BCPM indicators　 Indicator　 Color　 Meaning　 Description　 Normal Status　...

  • Page 87: Bts Resource Distribution Module (Brdm)

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.4 BTS Resource Distribution Module (BRDM)　 For details about the BRDM indicators, please see Table 5-4. Table 5-4 Description of BRDM indicator　 Indicator　 Color　 Meaning　 Description　 Normal Status　...

  • Page 88: Bts Transceiver Module (Btrm)

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.5 BTS Transceiver Module (BTRM)　 For details about the BTRM indicators, please see Table 5-5. 　 Table 5-5 Description of BTRM indicators　 Indicator　 Color　 Meaning　 Description　 Normal Status　...

  • Page 89: Bts Rf Fan Module (Brfm)

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.6 BTS RF Fan Module (BRFM)　 For details about the BRFM indicators, please see Table 5-6. 　 Table 5-6 Description of BRFM indicators　 Indicator　 Color　 Meaning　 Description　...
  • Page 90 On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.7 Receive LNA Distribution Unit (RLDU)　 For details about the RLDU indicators, please see Table 5-7. 　 Table 5-7 Description of RLDU indicators　 Indicator　 Color　 Meaning　 Description　...

  • Page 91: Base Station Power & Lightening Protection Lamp Indicator Board (Bpli)

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.9 Base station Power & Lightening protection Lamp Indicator board (BPLI)　 For details about the BPLI indicators, please see Table 5-9. 　 Table 5-9 Description of BPLI indicators　...

  • Page 92: Bts Fan Monitor Module (Bfmm)

    On-site Maintenance Manual Chapter 5 Component Airbridge cBTS3612 CDMA Base Station Indicators 　 5.10 BTS Fan Monitor Module (BFMM)　 For details about the BFMM indicators, please see Table 5-10. Table 5-10 Description of BFMM indicators　 Indicator　 Color　 Meaning　 Description　 Normal Status　...

  • Page 93: Chapter 6 Switches & Interfaces

    On-site Maintenance Manual Chapter 6 Switches & Airbridge cBTS3612 CDMA Base Station Interfaces 　 Chapter 6 Switches & Interfaces　 6.1 BTS Control Interface Module (BCIM)　 The DIP switch and jumpers of the BCIM are shown in Figure 6-1. 　 1 2 3 4...
  • Page 94 On-site Maintenance Manual Chapter 6 Switches & Airbridge cBTS3612 CDMA Base Station Interfaces 　 Table 6-1 BCIM DIP switch and jumper settings　 Item No.　 Function　 Operation　 The No.1-4 of the DIP switch are all set at “off” position: 120Ù twisted pair line. 　...

  • Page 95: Receive Lna Distribution Unit (Rldu)

    On-site Maintenance Manual Chapter 6 Switches & Airbridge cBTS3612 CDMA Base Station Interfaces 　 6.2 Receive LNA Distribution Unit (RLDU)　 For details about the RLDU switches, please see Table 6-2. 　 Table 6-2 Description of RLDU switches　 Switch name　 Function　...
  • Page 96 On-site Maintenance Manual Chapter 6 Switches & Airbridge cBTS3612 CDMA Base Station Interfaces 　 can run E1 trunk cables from one or all of these 4 DB25 connectors to the DDF rack in the cabinet room. 　 Caution-demanding issues　 During the BTS capacity expansion or maintenance, we should have a clear idea which DB25 connector is being used.
  • Page 97 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Table of contents Table of Contents Appendix A Common Commands..........A-1 Appendix B Abbreviation............B-1...
  • Page 98 On-site Maintenance Manual 表 格 结 果 无 效 0错误 Airbridge cBTS3612 CDMA Base Station Appendix A Common Commands In this appendix, we will provide you with a Telnet command list, including the configuration commands, maintenance commands and help commands etc., please see the on-line help for details about how to use these commands.　...
  • Page 99 On-site Maintenance Manual 表 格 结 果 无 效 0错误 Airbridge cBTS3612 CDMA Base Station Command Function Classification SET BTSCPPARA Set BTS BCPM Chip Parameters 　 SET BTSE1CLKM Set E1 Clock Mode 　 SET BTSGPSCLK Set BTS GPS Clock Parameters 　...
  • Page 100 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Appendix B Abbreviation Appendix B Abbreviation Abis Interface between BSC and BTS Authentication Center Alternating Current Alarm Asynchronous Transfer Mode Back Administration Module BCIM BTS Control Interface Module BCKM BTS Control & Clock Module...
  • Page 101 On-site Maintenance Manual Airbridge cBTS3612 CDMA Base Station Appendix B Abbreviation Inverse Multiplexing for ATM Internet Protocol IPOA IP over ATM Local Maintenance Function Low-Noise Amplifier CLPU CDMA Line Process Unit Medium Access Control Message Center Man Machine Interface Man Machine Language...

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