NTVQ01xx Media Card Page 831 of 894

RS-232 Asynchronous Maintenance Port

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.

Functional description

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.

Survivability

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

Circuit Card Description and Installation

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Nortel Networks 553-3001-211 manual Survivability, RS-232 Asynchronous Maintenance Port