DBS3900 WiMAX V300R002 Site Maintenance Guide Issue 01 Date 2009-11-30 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any assistance, please contact our local office or company headquarters. Huawei Technologies Co., Ltd. Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China Website: http://www.huawei.com Email: support@huawei.com Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
DBS3900 WiMAX Site Maintenance Guide (Draft) Contents Contents About This Document.....................................................................................................................1 1 Preparations for Site Maintenance.........................................................................................1-1 2 Tasks of Routine Hardware Maintenance.............................................................................2-1 2.
DBS3900 WiMAX Site Maintenance Guide (Draft) Tables Tables Table 2-1 Maintenance tasks for the power supply system and grounding system of the BTS3702E.................2-2 Table 2-2 Maintenance tasks of the BTS3702E...................................................................................................2-3 Table 2-3 Maintenance items for cables...............................................................................................................
DBS3900 WiMAX Site Maintenance Guide (Draft) About This Document About This Document Overview After completing the deployment and acceptance test of the BTS3702E, Huawei conducts routine maintenance to ensure that the BTS3702E operates in its optimum capacity. The document describes the tasks of the routine hardware maintenance of the BTS3702E, including the maintenance of the power supply system and grounding system, the maintenance of the BTS3702E main equipment, and the maintenance of the cables.
DBS3900 WiMAX Site Maintenance Guide (Draft) Organization Organization 1 Preparations for Site Maintenance The preparations for the maintenance of the BTS3702E site include obtaining site information, selecting maintenance tasks, and preparing maintenance tools and spare parts.
DBS3900 WiMAX Site Maintenance Guide (Draft) Organization Symbol Description Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury. Indicates a potentially hazardous situation, which if not avoided,could result in equipment damage, data loss, performance degradation, or unexpected results. Indicates a tip that may help you solve a problem or save time.
DBS3900 WiMAX Site Maintenance Guide (Draft) Organization Convention Description [ x | y | ... ]* Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected. GUI Conventions The GUI conventions that may be found in this document are defined as follows. Convention Description Boldface Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.
DBS3900 WiMAX Site Maintenance Guide (Draft) 1 1 Preparations for Site Maintenance Preparations for Site Maintenance The preparations for the maintenance of the BTS3702E site include obtaining site information, selecting maintenance tasks, and preparing maintenance tools and spare parts.
DBS3900 WiMAX Site Maintenance Guide (Draft) 1 Preparations for Site Maintenance – Other tools and materials are the multimeter, ESD wrist strap or gloves, screwdriver, ESD box or bag, dust-free cloth, wrench, tape, diagonal plier, and plier. – Ethernet cables for commissioning. – Local maintenance terminal. – Spare parts. NOTE Arrange for the tools and components according to the actual conditions of the specific replacement.
DBS3900 WiMAX Site Maintenance Guide (Draft) 2 2 Tasks of Routine Hardware Maintenance Tasks of Routine Hardware Maintenance About This Chapter The tasks of the routine hardware maintenance of the BTS3702E include the maintenance of the power supply system and grounding system, the maintenance of the main equipment of the BTS3702E, and the maintenance of the cables. 2.
DBS3900 WiMAX Site Maintenance Guide (Draft) 2 Tasks of Routine Hardware Maintenance 2.1 Maintenance of Power Supply System and Grounding System of the BTS3702E This section describes the maintenance tasks, maintenance frequency, operation guidance, and reference standard of the power supply system and grounding system of the BTS3702E. Table 2-1 lists the maintenance tasks of the power system and grounding system of the BTS3702E.
DBS3900 WiMAX Site Maintenance Guide (Draft) 2 Tasks of Routine Hardware Maintenance Table 2-2 Maintenance tasks of the BTS3702E Item Frequency Operation Standard Equipment surface Quarterly Check whether the surface of the equipment is damaged and whether the label of the equipment is legible. - Equipment cleanliness Quarterly Check whether the equipment is clean. - Indicators Monthly Check whether the indicators on the equipment are functional.
DBS3900 WiMAX Site Maintenance Guide (Draft) 2 Tasks of Routine Hardware Maintenance Item Frequency Optical fibers Annually RF jumper Annually Connectors and sockets 2-4 Quarterly Operation Check the connections of the optical fibers and optical modules. Carefully check the connection of the RF jumper. Check whether there is any dust or greasy dirt on the insulators of the connectors and sockets. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DBS3900 WiMAX Site Maintenance Guide (Draft) 3 3 Powering On and Powering Off the BTS3702E Powering On and Powering Off the BTS3702E About This Chapter When maintaining the BTS3702E, you need to power on and power off the BTS3702E. During power-on, check the power supply voltage of the BTS3702E and the states of the indicators on the BTS3702E. Power off the BTS3702E on a regular basis or in an emergency according to actual requirements. 3.
DBS3900 WiMAX Site Maintenance Guide (Draft) 3 Powering On and Powering Off the BTS3702E 3.1 Powering On the BTS3702E The power supply input of the BTS3702E is -48 V DC. After powering on the BTS3702E, determine the working state of the BTS3702E according to the status of the indicators. Prerequisite l The installation of the hardware and cables of the BTS3702E is finished. l The range of the power supply input of the BTS3702E is from -36 V DC to -57 V DC.
DBS3900 WiMAX Site Maintenance Guide (Draft) Indicator Color State Description ALM Red On An alarm is generated, and the board needs to be replaced. Blinking at 0.5 Hz (on for 1s and off for 1s) An alarm is generated, but you cannot determine that the board needs to be replaced. This alarm may be generated by a faulty board or port. Off No fault. On The board is working properly. Blinking at 0.5 Hz (on for 1s and off for 1s) The board is operating, but the antenna port transmits no power.
DBS3900 WiMAX Site Maintenance Guide (Draft) 3 Powering On and Powering Off the BTS3702E Indicator Color State Description Blinking at 4 Hz (on for 0.125s and off for 0.125s) An alarm is generated on both the A and B ports of the antenna subsystem. Blinking at 0.5 Hz (on for 1s and off for 1s) An alarm is generated on only the B port of the antenna subsystem. Step 3 Proceed with the next step according to the status of the indicator. If... Then... The modules of the BTS3702E work properly.
DBS3900 WiMAX Site Maintenance Guide (Draft) 4 4 Replacing the BTS3702E Modules Replacing the BTS3702E Modules The BTS3702E is an integrated outdoor micro BTS of Huawei WiMAX Micro. Replacing the BTS3702E modules disrupts all services carried by this BTS. Prerequisite l Check the quantity and model of the replaced BTS3702E modules. Prepare the new BTS3702E modules. l Record the installation position of the BTS3702E modules.
DBS3900 WiMAX Site Maintenance Guide (Draft) 4 Replacing the BTS3702E Modules Step 5 Connect all the cables to the new BTS3702E modules and fix the cover of the cabling cavity. Step 6 Turn on the power switch of the external power supply of the BTS3702E and power on the BTS3702E by referring to 3.1 Powering On the BTS3702E. Step 7 Replace the ESN number of the BTS by referring to Detecting BSs Automatically.
DBS3900 WiMAX Site Maintenance Guide (Draft) 5 Replacing the Optical Modules 5 Replacing the Optical Modules The optical module provides an interface for photoelectric conversion, which enables the transmission between the BTS3702E and other equipment through the optical fiber. It is used to connect the ASN-GW or cascading connections between the BTSs. Remove the optical fibers first when replacing the optical modules. This disrupts the transmission signal.
DBS3900 WiMAX Site Maintenance Guide (Draft) 5 Replacing the Optical Modules Step 2 Turn the ring-pull on the faulty optical module outwards. Hold the ring-pull and take the faulty optical module out of the slot to remove it from the BTS3702E. Step 3 Install the new optical modules in the BTS3702E. Step 4 Connect the optical fiber connectors to the new optical modules. Step 5 Check whether the transmission signal is recovered according to the indicators.
DBS3900 WiMAX Site Maintenance Guide (Draft) 6 Replacing the Power Modules 6 Replacing the Power Modules The power module is used to shift the power level to enable the transmission between the BTS3702E and other equipment through Ethernet cables. It is used to connect the ASN-GW or cascading connections between the BTSs. Remove the Ethernet cables first when replacing the power modules. This disrupts the transmission signal . Prerequisite l Check the quantity and type of the power modules.
DBS3900 WiMAX Site Maintenance Guide (Draft) 6 Replacing the Power Modules Step 4 Connect the Ethernet cables to the new power modules. Step 5 Check whether the transmission signal is recovered according to the indicators. ----End Postrequisite Contact the local Huawei office to handle the faulty power module. 6-2 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
DBS3900 WiMAX Site Maintenance Guide (Draft) 7 Replacing the BTS3702E Cables 7 Replacing the BTS3702E Cables About This Chapter When the BTS3702E cables are faulty, you need to replace them promptly. The cables that can be replaced are power cables, signal cables, transmission cables, and RF jumpers. Context NOTE Contact Huawei engineers in the following conditions: l When you want to arrange for devices, cables, and connectors by yourself.
DBS3900 WiMAX Site Maintenance Guide (Draft) 7 Replacing the BTS3702E Cables 7.1 Replacing the Power Cables of the BTS3702E When the power cables of the BTS3702E are faulty, you need to replace them. Prerequisite l The type and model of the faulty power cables are confirmed, and the new power cables are ready and routed according to the specifications. l The new cables are in good condition. l The required tools and materials are ready.
DBS3900 WiMAX Site Maintenance Guide (Draft) 7 Replacing the BTS3702E Cables 7.2 Replacing the Signal Cables of the BTS3702E When the signal cables of the BTS3702E are faulty, you need to replace them. The BTS3702E signal cables are monitoring signal cables. Prerequisite l The types, models, and quantity of the faulty signal cables are confirmed, and the new signal cables are ready. l The new cables are in good condition. l The required tools and materials are ready.
DBS3900 WiMAX Site Maintenance Guide (Draft) 7 Replacing the BTS3702E Cables Contact the local Huawei office to handle the faulty signal cables. 7.3 Replacing the Transmission Cables of the BTS3702E The transmission cables of the BTS3702E are optical fibers and Ethernet cables. 7.3.1 Replacing the Ethernet Cables The Ethernet cables are used to transmit the electric signals between the BTS3702E and the ASN-GW, or transmit the electric signals between two cascading BTS3702Es.
DBS3900 WiMAX Site Maintenance Guide (Draft) 7 Replacing the BTS3702E Cables Procedure Step 1 Route the new Ethernet cables in the same way as the faulty Ethernet cables are routed. Step 2 Remove the faulty Ethernet cables from the power modules. Remove the other connector from the peer device. Step 3 Install the new Ethernet cables. Step 4 Attach an engineering label to each new cable. The content on each engineering label should be the same as that on the replaced cable.
DBS3900 WiMAX Site Maintenance Guide (Draft) 7 Replacing the BTS3702E Cables CAUTION l Take proper ESD prevention measures. For example, wear ESD wrist straps or gloves to prevent boards, modules, and electronic components from being destroyed by static discharge from the human body. l Protect your eyes against the laser emitted by the optical fiber that is removed from the optical module. Procedure Step 1 Route the new optical fibers in the same way as the faulty optical fibers are routed.
DBS3900 WiMAX Site Maintenance Guide (Draft) 7 Replacing the BTS3702E Cables CAUTION Take proper ESD prevention measures. For example, wear ESD wrist straps or gloves to prevent boards, modules, and electronic components from being destroyed by static discharge from the human body. NOTE See the BTS3702E Quick Installation Guide to install new RF jumpers. Procedure Step 1 For details about how to power off the BTS3702E, see 3.2 Powering Off the BTS3702E.
