Nortel Networks 553-3001-211 manual Uses, Features

Overview Page 71 of 894

not consume a module slot. The RS-232-C connections are brought out through special cables to the backplane I/O panel.

The QPC841 Quad SDI card and the QPC513 Enhanced SDI card mount in standard backplane slots, and their serial interface connectors are located on the card front panels. A list of the modules that they can be mounted in is given in the following sections on the individual cards.

Uses

Examples of asynchronous devices that can be connected to the system processor using the NT8D41BA QSDI paddle board and the QPC841 Quad SDI card are:

•an administration and maintenance terminal

•a background terminal for use in a hotel/motel

•the Automatic Call Distribution (ACD) feature

•the Call Detail Recording (CDR) feature

Examples of synchronous devices that can be connected to the system processor using the QPC513 Enhanced SDI card are:

•a host computer (DEC, Tandem, for example) using the Meridian Link communication program

•the Meridian Mail voice-mail option

Features

The NT8D41 QSDI paddle board and the QPC841 QSDI card provide the following features:

•asynchronous serial data interface ports, each supporting

—RS-232-C interface

—8–bit ASCII data with parity and stop bit

—Asynchronous, start-stop operation

—Data rates of 150, 300, 600, 1200, 2400, 4800, and 9600 baud

Circuit Card Description and Installation