Contents
Preface ............................................................... i
Product Overview .............................................. 1
Position in the Network.................................................... 1
Product Appearance ........................................................ 2
Product Functions ........................................................... 3
Product Services............................................................. 5
Product Features ............................................................ 5
External Interfaces ......................................................... 6
Application Scenarios .....................................................10
Product Reliability ..........................................................10
Standard Compliance .....................................................12
Working Principle ............................................ 15
System Architecture.......................................................15
Signal Flow ...................................................................16
Service Signal Flow ....................................................16
Control Signal Flow ....................................................18
Clock Signal Flow ......................................................18
Power Distribution .........................................................19
Ventilation and Heat-dissipation Principles.........................21
Networking and Configuration......................... 25
Abis Interface Networking...............................................25
Baseband-RF Interface Networking ..................................26
Cabinet Configuration.....................................................27
Board Configuration .......................................................30
Equipment Management Modes ....................... 33
OMC Mode ....................................................................33
LMT Mode.....................................................................34
Technical Indices ............................................ 35
Engineering Indices .......................................................35
Performance Indices ......................................................35
Clock Parameters...........................................................36
