3 Board
M900/M1800 BTS3X Series Base Transceiver Station
Hardware Description Manual
3-50
Huawei Technologies Proprietary
Issue 01 (2006-11-18)
3.16.2 DIP Switch
shows the layout of DIP switches.
Figure 3-36
TCU layout
ON
S1
1 2 3 4
shows the description of the TCU DIP switch S1.
Table 3-27
Description of the TCU DIP switch
DIP
Switch
Function
DIP
Bit
Setting Method
Default
Setting
Bit 1
Bit 1 of DIP switch represents the
matching setting of the combining control
signals CBUS1:
!
If bit 1 is set to ON, it indicates
matching setting.
!
If bit 1 is set to OFF, it indicates
unmatched setting.
If no cabinets are combined, bit 1 must be
set to OFF. If two cabinets are combined,
bit 1 on both cabinets must be set to ON.
If three cabinets are combined, bit 1 of the
two DIP switches of the secondary
cabinets are set to ON, and the bit of the
primary cabinet is set to OFF.
OFF
S1 Driving
of
the BTS
clock
enabled and
matching
setting of
CBUS1
Bit 2
Bit 2 is not used, and needs no setting.
OFF