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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 features and 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
• suppor t 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, Nortel Networks
.