Nortel 1000 Features And Services Fundamentals page 373

Card LED Status
Contents
This section contains information on the following topics:
"Feature description" (page 373)
"Operating parameters" (page 373)
"Feature interactions" (page 374)
"Feature packaging" (page 374)
"Feature implementation" (page 374)
"Feature operation" (page 374)
Feature description
This feature allows the use of Swedish Televerket (TVT) Intelligent
Peripheral Equipment on the system. This is accomplished by defining
individual terminal loops as TVT type in LD 17. The system software is
modified to allow the status (on/off) of the LED on the faceplate of the
TVT cards to be opposite of the LED on NT cards. The TVT peripheral
cards (standard extension line, off-premises extension and Multi Frequency
Receiver [MFR]) are equivalent to the NT 500-type line card and Digitone
Receiver (DTR). Since the TVT off-premises extension line card must be
treated as a local extension by the system, the OPX Class of Service is
prohibited for this card in LD 10.
Operating parameters
The system software supports the following TVT cards:
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single-density standard extension line card (TPC60)
dual-density extension line card (TPC451)
two-wire Off-premise Extension (OPX) line card (TPC22)
four-wire Off-premise Extension (OPX) line card (TPC23), and
Nortel Communication Server 1000
Features and Services Fundamentals — Book 2 of 6 (C)
NN43001-106 02.04 Standard
Release 5.5 9 May 2008
373