Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

 NTVQ01xx Media Card

An 8-pin mini-DIN socket on the NTVQ01xx Media Card faceplate provides 
access to the RS-232 port. This faceplate port can provide access to the Media 
Card for OA&M purposes. The maintenance port is also available through a 
female DB9 connector on the 50-pin I/O Adaptor. This should be used to 
make a permanent terminal connection.

Media Cards have different types of firmware pre-installed, depending on the 
application being supported. The Voice Gateway application enables Digital 
Signal Processors (DSPs) for either line or trunk applications. When the 
Voice Gateway application is installed on the Media Card, the card is called 
the Voice Gateway Media card. Other examples of applications on a Media 
Card include IP Line 3.0 and Integrated Recorded Announcer.

The NTVQ01xx Media Card connects an IP and circuit-switched device. The 
DSPs perform media transcoding between IP voice packets and 
circuit-switched devices. The Media Card also provides echo cancellation 
and compression/decompression of voice streams.

Refer to Communication Server 1000S: Installation and Configuration 
(553-3031-210) for instructions on configuring the card for survivability.