Nortel Networks Circuit Card 311 - Manual (Page 577)

Functional description 577
Figure 144
NT8D14 Universal trunk card - block diagram
The Universal Trunk Card:
• allows trunk type to be configured on a per unit basis
• indicates status during an automatic or manual self-test
• provides card-identification for auto configuration, and to determine the
serial number and firmware level of the card
• converts transmission signals from analog-to-digital/digital-to-analog
• operates in A-Law or µ-Law companding modes on a per unit basis
• provides software selected terminating impedance (600, 900, or 1200
ohm) on a per unit basis (1200 ohm supported for RAN trunks only)
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
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