Polycom RMX 1500 Hardware Guide

ISDN/PSTN Clock Source

Each RTM ISDN 1500 has its own primary and secondary clock source. The first span to synchronize becomes the primary clock source and the second span to synchronize becomes the secondary clock source. This clock is used to synchronize ISDN spans only (it is not the system clock).

A single clock source triggers an alarm that can be turned off by setting the appropriate flag in the system configuration.

RMX 1500 Power Supply

Subject to availability on the RMX 1500 there are two types of power supplies (Power-One & Astec), both are identical in their functionality.

Power Supply LEDs

On the RMX 1500 there are three LEDs that indicate the power status.

Table 1-8Polycom RMX 1500 Power Supply LEDs

Power Supply LED

Description

 

 

OK

DC power indication to internal components of the RMX:

 

Green - DC Power Good.

 

 

 

Power supply failure Indication:

(Alarm symbol)

Amber - Power Supply Failure.

 

 

AC/~ (symbol)

Main power supply indication (Voltage In):

 

Green - Voltage Input > 85 VAC.

 

 

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Polycom DOC2557C manual RMX 1500 Power Supply, ISDN/PSTN Clock Source, Power Supply LEDs, Power Supply LED Description

DOC2557C specifications

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