1
Tableof Contents
ThedescriptionofMaintenanceManual..................................................................................................2
Introduction.............................................................................................................................2
The purpose...........................................................................................................................2
Chapter1 FWTPrinciples andParameters................................................................................................3
1.1CircuitMakeup and Principle.............................................................................................3
1.2Hardwarestructureofthe FWTMin-BoardFunctionalModules.........................................4
1.2.1TCPUBoardHardwareStructure.......................................................................................4
1.2.2PIPUBoardHardwareStructure.........................................................................................5
1.3Detailed Description of the FWTMain-BoardFunctionalModule........................................6
1.3.1SubscriberInterface Sub-system.........................................................................................6
1.3.2PowerSupplyandPowerManagementSub-System.........................................................14
1.3.3MSM6000 Sub-System....................................................................................................21
1.4ParameterIndices...........................................................................................................25
1.4.1Performance Indices.........................................................................................................25
1.4.2ElectricIndices................................................................................................................26
Chapter2 Installing/UninstallingFWT....................................................................................................27
2.1InstallingFWT.................................................................................................................28
2.2UninstallingFWT.............................................................................................................30
Chapter3 ETSMaintenanceSoftware.....................................................................................................31
3.1Overview.........................................................................................................................31
3.2Operation Guide..............................................................................................................31
3.2.1HardwareConnection.......................................................................................................31
3.2.2System Configuration......................................................................................................31
3.2.3SoftwareUpgrade............................................................................................................33
Chapter4 Maintenance Procedures andSolutions toCommon Faults....................................................35
4.1MaintenanceProcedure..................................................................................................35
4.1.1TroubleshootingProcedureof theBasebandProcessingInterface Module.........................35
4.1.2RFProcessingModuleFaultMaintenance Procedure........................................................41
4.2Solution toCommon Faults:............................................................................................43
Appendix.................................................................................................................................................47
5.1 damageablesparepartlist.........................................................................................47
5.2keypad command list......................................................................................................48
