BTS3900C (Ver.C)
Hardware Description
Silkscre
en
DIP Switches
Figure 4-7
Figure 4-7 DIP switches on the PMU 11A
Table 4-8
Table 4-8 Settings of the DIP switches
DIP Bit
Four least
significan
t bits (1,
2, 3, and
4)
Four most
significan
t bits (5,
6, 7, and
8)
4.3.4 PSU
The power supply unit (PSU) converts 110 V or 220 V AC power into -48 V DC power.
Issue 03 (2013-05-27)
Color
Description
shows the DIP switches on the PMU 11A.
describes the settings of the DIP switches.
Function
Define the
monitoring address
of the PMU.
Reserved for future
use.
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Copyright © Huawei Technologies Co., Ltd.
Status
Description
Blinking (on
An alarm is generated and you need
for 1s and off
to locate the fault before deciding
for 1s)
whether to replace the PMU 11A.
Setting
The bit 1 indicates ON, and the bit 0 indicates OFF. Bits
1 to 4 are set to 1100 by default before delivery.
The bit 1 indicates ON, and the bit 0 indicates OFF. Bits
5 to 8 are set to 0000 by default before delivery.
4 BTS3900C Power System
101