3 Board
M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual
3-10
Huawei Technologies Proprietary
Issue 01 (2006-11-18)
3.3.4 Rear Panel
Multiple types of CDU rear panels are the following:
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CDU (type A)
shows the CDU (type A) rear panel.
Figure 3-6
CDU (type A) rear panel
TTA M
OFF
FUSE
TTA D
ON
TMA M: TMA power feeding switch of main receiving channel (100 mA)
TMA D: TMA power feeding switch of diversity receiving channel (100 mA)
FUSE: fuse (2 A)
CDU (type B)
shows the CDU (type B) rear panel.