Nortel Circuit Card 311 Reference page 959

DPNSS/DCHI Port
The mode of operation of the DCH-PORT is controlled by a switch setting
on the NTAK09/NTBK50. For DPNSS the switch is ON; for DCHI it is OFF.
The port operates at:
The address of ports is selected by hardwired backplane card address. Port
characteristics and LAPD parameters are downloaded from software.
The mode of operation of the DCH-PORT is controlled by a switch setting
on the NTAK09/NTBK50. For DPNSS the switch is ON; for DCHI it is OFF.
The port operates at:
The address of ports is selected by hardwired backplane card address. Port
characteristics and LAPD parameters are downloaded from software.
The mode of operation of the DPNSS/DCHI-PORT is controlled by a switch
setting on the NTAK09 and NTBK50 trunk cards. For DPNSS, the switch is
set to ON. For DCHI, set the switch to OFF.
The port operates with the following specifications:
•
•
•
•
The address of a port is determined by the hardwired backplane card
address. Port characteristics and LAPD parameters are downloaded from
software.
Copyright © 2003-2008, Nortel Networks
.
Data Rate
Duplex
Clock
Interface
Data Rate
Duplex
Clock
Interface
data rate of 56 kbps or 64 kbps
full duplex
internal/external clock
RS422 interface
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Functional description 959
56kbps, 64kbps
Full
Internal / External
RS422
56kbps, 64kbps
Full
Internal / External
RS422