Qpc757 Dch - Nortel 1000 Installation And Commissioning Manual

Figure 2
NT6D11 DCH faceplate layout

QPC757 DCH

Power requirements
The power requirements for the QPC757 DCH are:
•
•
•
DCH/PRI interface
The QPC757 DCH connects to the QPC720 PRI via a RS-422 cable. The
following signals are transmitted across the interface:
•
Copyright © 2003-2007, Nortel Networks
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+5 volts at 3 amperes
+12 volts at 50 milliamperes
–12 volts at 50 milliamperes
RCV DATA
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
QPC757 DCH 21