User's Manual

Confidential & Proprietary 11/30 SC-DAS
(b)ARU
Figure 2.3 – ROU Inner Look
No.
Unit
Description
Remark
1
MRFM/ARFM
+BPF
Main/Add on RF Module
Filter and high amplify TX signals;
Filter and amplify RX signals;
Remove other signals through BPF
2
RPSU
Remote Power Supply Unit
Input power: DC -48V or AC120V, Output power: 25V
For 120V input of AC/DC;
For -48V input of DC/DC
3
R-OPT
Remote Optic
Make RF conversion of TX optical signals;
Convert RX RF signals into optical signals;
Compensates optical loss interval
Communicates with BIU or OEU though the FSK modem