Qpc525, qpc526, qpc527, qpc777 co trunk card, Qpc550 direct inward dial trunk card – Nortel Networks Circuit Card 311 User Manual
Page 111
QPC550 Direct Inward Dial Trunk card
111
QPC525, QPC526, QPC527, QPC777 CO Trunk card
Switches at E29/E9/A29/A11 Units 0/1/2/3
Application
1
2
3
4
5
6
7
8
Zero ohm outpulsing
on
off
off
Standard outpulsing
off
on
off
Ground start
on
on
off
Loop start
off
off
off
Loop start, automatic guard detection
off
on
off
PPM daughterboard not installed
on
off
PPM daughterboard installed
off
off
Battery on M operation
off
on
off
Ground on M operation
on
off
off
Second pair M&MM
off
off
off
Note 1: There is no ground start signalling for QPC777 CO trunk cards.
Always select loop start signalling for QPC777 CO trunk cards.
Note 2: On QPC777 CO trunk cards, the pads are in for short line
lengths and the pads are out for long line lengths.
QPC550 Direct Inward Dial Trunk card
Table 51 "QPC550 vintages A and B-real/complex balance impedance
selection" (page 111)
through
Table 55 "QPC550 vintage B-software control
give the option settings for the QPC550 DID Trunk
card.
Table 51
QPC550 vintages A and B-real/complex balance impedance selection
Impedance type
Device
location
Device
designation
Switch
number
Unit
number
Real
Complex
F31
S4.0
1
0
on
off
F24
S4.1
1
1
on
off
F16
S4.2
1
2
on
off
F11
S4.3
1
3
on
off
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.