Installation Manual – BTS3606A Cabinet Installation
Airbridge BTS3606&3606A CDMA Base Station
Chapter 4 Installing Outdoor Transmission and
Power Interface Boxes
Huawei Technologies Proprietary
4-1
Chapter 4 Installing Outdoor Transmission and
Power Interface Boxes
This chapter introduces the functional structure of the outdoor transmission and power
interface boxes and their installation procedures.
4.1 Introduction to Outdoor Transmission and Power
Interface Boxes
This section introduces the structure and components of the outdoor transmission and
power interface boxes.
4.1.1 Outdoor Transmission Interface Box
There are two types of TSI-DDF/ODF transmission interface box:
z
75
Ω
transmission interface box
z
120
Ω
transmission interface box
Figure 4-1 shows the structure of a 75
Ω
transmission interface box.
(1) 12-core fiber fusing and distributing assemblies
(2) 8-E1 75
Ω
DDF unit
(3) Grounding busbar
(4) Enclosure
Figure 4-1
Structure of 75
Ω
transmission interface box