Instruction manual

Page 1452 of 3156 Extended Flexible Central Office Trunk Software Support
553-3001-306 Standard 10.00 January 2002
• NT5K82AA (Swiss)
• NT5K90AA (Danish PPM)
• NT5K90BA (Danish non-PPM)
• NT5K93AA (Norwegian PPM)
• NT5K93BA (Norwegian non-PPM)
• NTAG03AA (Dutch COT)
• NTAG04AA (Dutch DID/COT)
• NT5K18BA (New Zealand)
• NT5K99AA (Spanish PPM), and
• NT5K99BA (Spanish non-PPM).
The NT5K18AA (UK XFCOT) is not affected by the software changes
introduced to support the new XFCOT packs.
The following supervision, based on loop start signaling, is supported:
Battery Supervision Central Office Trunk (COT)
A battery supervised COT uses polarity detectors to provide seize, answer
and disconnect supervision on all outgoing calls, and disconnect supervision
on incoming calls. The supervision is performed by reversing the polarity
from the Public Switched Telephone Network (PSTN) line. The battery
supervised COT is configured in LD 14 with BAT.
ARF Supervision Central Office Trunk
ARF is an Ericson type series Public Exchange which provides disconnect
supervision on both incoming and outgoing loop start Central Office trunk
calls; on outgoing calls, seize supervision is also provided. Supervision is
based on battery reversal detection. The signaling used to provide this
supervision is called ARF signaling. The ARF supervised COT is configured
in LD 14 with ARF.