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 forthe Periodic Pulse Metering
(PPM) feature. The NTCK16AX card supports inter nal 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
provideter mination 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 23May 2008
Copyright© 2003-2008, Nor tel Networks
.