974 NTBK50 2.0 Mb PRI card
•support of National and International bits in timeslot 0
•clock controller daughterboard
•D-channel interface daughterboard
•downloadable D-channel handler daughterboard
•32 software-selectable Tx and Rx Pad values
•conversion of PCM commanding Laws (A-A, u-u, A-u, u-A)
•Card-LAN for maintenance communication
NTBK50 provides the following featuresand functions:
•recovery of the 2.048 kbps data by the CEPT receiver, at signal levels
which are attenuated by up to 10 dB
•control of CEPT line density using HDB3 which provides 64 kbps clear
channel
•performance monitoring of the receive carrier by means of Bipolar
Violations (BPV), Slips, CRC-4 (CRC), and Frame Bit Errors (FBER)
•monitoring of receive carrier alarms including AIS, LOS, and RAI
•transmission of remote alarm when instructed
•slip-buffering receive messages
•support of National and International bits in time slot 0
•clock controller daughterboard
•D-channel interface daughterboard
•Downloadable D-channel handler daughterboard
•32 software-selectable Tx and Rx Pad values
•conversion of PCM commanding Laws (A-A, u-u, A-u, u-A)
•Card-LAN for maintenance communications
NTBK50 provides the following features and components:
•recovery of the 2.048 kbps data by the CEPT receiver, at signal levels
which are attenuated by up to 10 dB
•control of CEPT line density using HDB3 which provides 64 kbps clear
channel
•performance monitoring of the receive carrier by means of Bipolar
Violations (BPV), Slips, CRC-4 (CRC), and Frame Bit Errors (FBER)
•monitoring of receive carrier alarms including AIS, LOS, and RAI
•transmission of remote alarm when instructed
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright© 2003-2008, Nor tel Networks
.