Self-Test - Avaya Nortel Communication Server 1000 Reference

Self-test

When the NTCK16AX and NTCK16BX trunk cards are installed and power is applied to them,
a self-test is performed on each card. The red LED on the faceplate flashes three times, then
remains continuously lit until the card is enabled in software. If the self-test fails, the LED
remains lit.
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 Ω.
Circuit Card Reference
Functional description
July 2011 569