Nortel Networks Circuit Card 311 - Manual (Page 1003)

Operation 1003
Functional description
The NTCK16AX and NTCK16BX generic Central Office trunk cards support
up to eight analog Central Office trunks. They can be installed in any IPE
slot.
Both cards are exactly the same except for the Periodic Pulse Metering
(PPM) feature. The NTCK16AX card supports internal 12/16 kHz PPM
but the NTCK16BX card does not.
Common features
The NTCK16AX and NTCK16BX generic Central Office trunk cards:
• support the North American loss plan
• support loop start signalling
• support busy tone detection and supervision on a per unit basis.
• support battery reversal detection
• provide 4 dB dynamic attenuation pads on a per call basis
• allow individual units or the entire board to be disabled by software
• provide software selectable A-law or µ-law companding
• indicate self-test status during an automatic or manual self-test
• provide card-identification for auto configuration, and for determining the
serial number and firmware level of the card
• convert transmission signals from analog-to-digital and from
digital-to-analog
• provide termination and trans-hybrid balance impedance to match 600 .
Operation
Each NTCK16AX and NTCK16BX generic Central Office trunk card
supports the following:
• Loop start operation
• Battery reversal detection
• Busy tone detection and supervision
• Loss Switching
• Trunk-to-Trunk connections
• Call Disconnect
In addition, the NTCK16AX circuit card supports internal 12/16 kHz PPM
detection.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.