Nortel Circuit Card, Installation Manual, Page: 143 / 908

Option settings Page 143 of 906
Circuit Card Description and Installation
QPC528 CO/FX/WATS Trunk cards
Table 50 lists switch and jumper settings for options available.
Table 50
QPC528 Trunk cards switch and jumper settings
Switch Settings
Switch position:
Switch S1 (location A23)
1 2 3 4 5 6 7 8
on off on off on off on off
Switch position:
Unit 0, Switch S2 (Location E29)
Unit 1, Switch S3 (Location E9)
Unit 2, Switch S4 (Location A28)
Unit 3, Switch S5 (Location A10)
1 2 3 4 5 6 7 8 9 10
Trunk type:
Loop start off on off off on off off off
Ground start off on on on on off off off
Metering:
Second pair (M, MM) or off off
Third wire, battery on M or off on
Third wire, ground on M on off
Jumper Settings
Unit 0 jumper (Location E27)
Unit 1 jumper (Location E11)
Unit 2 jumper (Location D29)
Unit 3 jumper (Location D9)
Jumper: Unit 0
Jumper
Unit 1
Jumper
Unit 2
Jumper
Unit 3
Jumper
600 ¾ resistive impedance Pin 1 to 2 Pin 1 to 2 Pin 1 to 2 Pin 1 to 2
3-component complex
impedance Pin 2 to 3 Pin 2 to 3 Pin 2 to 3 Pin 2 to 3