Figure 3-8 Cdu (Type C) Rear Panel; Table 3-7 Mapping Between The Knob Setting And Current Strength Of The Tma (Type C) - Huawei BTS3 Series Hardware Description Manual

3 Board

Figure 3-8 CDU (type C) rear panel

TMA M: TMA power feeding selection knob of main receiving channel
TMA D: TMA power feeding selection knob of diversity receiving channel
FUSE: Fuse (2A)
Two knobs shown in
supply.
Table 3-7

Table 3-7 Mapping between the knob setting and current strength of the TMA (type C)

Setting
0
1
2
3
3-12
FUSE
TTA-M
0
TTA-D
0
Figure 3-8 are used to control the current strength of the TMA power
shows the mapping between the knob setting and the TMA current.
TMA M
OFF
100
107
205
Huawei Technologies Proprietary
M900/M1800 BTS3X Series Base Transceiver Station
TMA D
OFF
65
100
205
Hardware Description Manual
Unit
–
mA
mA
mA
Issue 01 (2006-11-18)