Figure 3-11 Cmb Layout; Table 3-9 Cmb Dip Switch Description - Huawei BTS3 Series Hardware Description Manual

M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual

Figure 3-11 CMB layout

The DIP switch of the CMB is set before delivery. Do not change the settings unless
!
necessary.
The CMB is the backplane of common resource frame. Its DIP switch is behind the TMU.
!
It can be seen after the TMU is removed.
Table 3-9

Table 3-9 CMB DIP switch description

DIP
Switch
S1
Issue 01 (2006-11-18)
ON
S1
1 2 3 4
ON
S3
1 2 3 4
ON
S5
1 2 3 4
ON
S4
1 2 3 4
ON
S2
1 2 3 4
lists functions of DIP switches on the CMB.
DIP Bit Function
4 Define cabinet
number: 0–7
Huawei Technologies Proprietary
Setting Method
OFF: 1; ON: 0
The binary bits are used to indicate the cabinet
number: Bit 1 is MSB (high bit); Bit 4 is LSB
(low bit);
If cabinet number is 5 (0101), the DIP switch
setting is as follows:
Bit 1: ON
!
Bit 2: OFF
!
Bit 3: ON
!
Bit 4: OFF
!
3 Board
3-15