User's Manual

Table Of Contents
mBSC-CM RUM
mBSC-CM December 15, 2015
Page 23
chassis.
3.3.4.1.1 Power supply board
The RPM enclosure is equipped with a 3-wire AC power connector that provides a connection point for the
AC power cable. AC power input via power supply board convert to 28V DC distributed to RUMs and RTMs
by connector board on the bottom of RPM enclosure.
Power supply board provides 28V DC to battery board and control board.
Figure 19 RPM interior layout
3.3.4.1.2 Control board
Control board manages power supply alarm and report to NMS.
3.3.4.1.3 Battery board
When power supply board stops working, then battery board will provides control board work.
3.3.4.1.4 Interface
# User Interface Designation Device Functional Description
Model RPM
1 Switch Power Switch Used for turn on/off power
2 RUN LED (Green/Red/Off) Indicates if Fiber/RF link is normal or faulty.
3 Alarm 8-PIN circular plug Used for external alarm
4 AC 220V
3-wire\4wire circular push-plug
power connector
Used for connecting AC 110/220V power input.
7 DEBUG Mini USB connector Support Local debugging