Psu; Dip Switches - Huawei BTS3900C Hardware Description

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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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
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