Digital Channel Bank - Requirements and Objectives
Document Number MDP-326-140
Issue Number 01
Issue Date Nov 1982
ABSTRACT: A digital channel bank is a Pulse Code Modulated (PCM) voice frequency terminal capable of converting 24, 48, or 96 analog voice
frequency channels, along with associated signaling and alarm information, into a 1.544-(DS1), 3.152 (DS1C), or 6.132 (DS2) Mbps
digital signal suitable for transmission over T-carrier facilities. Such a bank must be able to accept a signal from other digital
sources that are in standard use, such as D1D, D2, D3 and D4 channel banks or other fully compatible equivalents of these systems;
process that signal internally; and provide 24-, 48-, or 96-channel voice frequency channels of toll-grade quality along with
associated signaling and alarm information.
This document provides requirements and objectives for digital terminals that convert 24, 48 or 96 voice channels into DS1, DS1C, or
DS-2 Mbps digital signals along with associated signaling and alarm information for transmission over digital facilities. It also
covers both digital and analog transmission requirements, signaling requirements for dial pulse, E and M, and Foreign Exchange and
Multifrequency channel units, and includes test procedures for determining compliance with the requirements.
MDP-326-140 replaced PUB-43801.