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Remote terminal power supply module (rtpsm) – ZyXEL Communications Multi-service Access Platform MSAP2000 User Manual

Page 117

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7. Product Specification

MSAP2000 Technical Manual V3.0

7-10

7.5. Remote Terminal Power Supply Module (RtPSM)

Overview

The Remote Terminal Power Supply Module (RtPSM) provides ring
power for remote FXS, and FXS-P. If the COT has FXS, FXS-P
modules installed, an RtPSM module will need to be installed upon the
same Shelf as well.

An additional RtPSM can be installed on the same shelf, to provide 1+1
power redundancy support.

Features
And
Benefits

„ LEDs on the front panel indicate the RtPSM status, fault occurrences,

and fuse status.

„ Circuit protection for low input voltage and output over currents
„ Over current protection for input and output interfaces.
„ Automatic protection against over-temperature occurrence.
„ Test connection port located on the Front Panel.
„ Digital control and Alarm Reporting.

Function
Diagram

Application

RtPSM shall be used as the Power supply in those shelves that

FXS/FXS-P are installed for the RING voltage generation.