Nortel Networks 553-3001-211 manual Maintenance, Electromagnetic interference, Reliability

Page 74 of 894 Overview

Electromagnetic interference

The CS 1000S, CS 1000M, and Meridian 1 systems meet the requirements of FCC Part 15 and CSA C108.8 electromagnetic interference (EMI) standards as a class “A” computing device. To accomplish this, the SDI cables must exit the module through EMI filters on the I/O panel.

Reliability

The Mean Time Between Failure (MTBF) for all SDI cards is 55 years at 40°C and 29 years at 55°C.

Installation

To use a serial data interface card in a CS 1000S, CS 1000M, or Meridian 1 system, first install the card in the system, and then configure the system software to recognize it. These steps are discussed in the following sections.

Instructions for cabling the serial data interface cards to the various system consoles and peripherals are found in Communication Server 1000M and Meridian 1: Large System Installation and Configuration (553-3021-210).

Configuring the system software

Once an SDI card has been installed in the system, the system software needs to be configured to recognize it. This is done using the Configuration Record program LD 17. Instructions for the Configuration Record program are found in Software Input/Output: Administration (553-3001-311).

Maintenance

The following maintenance programs are used to maintain individual SDI asynchronous ports. The program used depends on the application of the port.

•LD 37 Input/Output Diagnostics – Used for system terminal, printer, background terminal ports, and system monitor status.

•LD 42 Call Detail Recording (CDR) Diagnostic – For checking CDR links and CDR system terminals.

553-3001-211 Standard 2.00 September 2004