Card Interfaces - Avaya Nortel Communication Server 1000 Reference
Circuit card reference
Hide thumbs
Also See for Nortel Communication Server 1000:
- Manual (570 pages) ,
- Configuration manual (350 pages) ,
- Hardware installation and maintenance (262 pages)
Table of Contents
Advertisement
Figure 104: NT8D14 Universal trunk card - block diagram
Card interfaces
The NT8D14 Universal Trunk card passes voice and signaling data over DS-30X loops, and
maintenance data over the card LAN link.
Trunk interface units
The NT8D14 Universal Trunk card contains eight identical and independently configurable
trunk interface units (also referred to as circuits). Each unit provides impedance matching and
a balanced network in a signal transformer/analog hybrid circuit.
Also provided are relays for placing outgoing call signaling onto the trunk. Signal detection
circuits monitor incoming call signaling. Two codecs are provided for performing A/D and D/A
Circuit Card Reference
Functional description
July 2011
383
Advertisement
Table of Contents
