Functional Description Of The Ntdk16 - Meridian Nortel 1 Option 11C Technical Reference Manual

• control of card operation
• status report to the controller
• maintenance diagnostics

Functional description of the NTDK16

The NTDK16 digital line card is equipped with 48 identical units. Each unit
provides a multiplexed voice, data, and signaling path to and from digital
apparatus over a 2-wire full duplex 512 kHz time compression multiplexed
(TCM) digital link. Each digital telephone and associated data terminal is
assigned a separate terminal number (TN) in the system database, for a total
of 96 addressable ports per card. Refer to Figure 55 on page 368.
The NTDK16 digital line card contains a microprocessor that provides the
following functions:
• self-identification
• self-test
• control of card operation
• status report to the controller
• maintenance diagnostics
The card also provides
• Ability to support Digital sets and the Digital Console M2250
• Provides a serial link (Card LAN) for status report and maintenance.
• Supports loop lengths up to 3500 ft. (1.0 km) using 24 AWG wire.
• Interface between three DS30X loops and 48 TCM lines.
NT8D02 and NTDK16 Digital Line Cards
Option 11C and 11C Mini
Page 367 of 544
Technical Reference Guide