Administrator’s Guide for the V500 System

Connecting the BRI Network Interface

The V500 system is available with the optional BRI network interface, which allows you to make ISDN calls.

You may need an NT-1 device if your site does not use an internal telephone system (PBX). A PBX or an NT-1 device provides the S/T interface that the system’s BRI network interface requires.

To install the BRI network interface:

1. Make sure the system is powered off.

2.Connect the BRI cable from the BRI connector on the back of the system to ISDN or to your NT-1 device, as appropriate.

LAN

DC IN 12V

BRI connector

3.If you are using an NT-1 device, connect it to the ISDN.

Connecting Headphones

You can connect optional headphones to the V500 system to listen to your calls privately.

To connect headphones to the system:

>>Connect the headphone cable to the headphone jack on the back of the system.

BRI

LAN

DC IN 12V

Headphone jack

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Polycom Audio and Video Connecting Headphones, Connecting the BRI Network Interface, To install the BRI network interface