Nortel Meridian 1 Installation Manual page 63

QPC528 CO/FX/WATS Trunk Cards
QPC528 Trunk Cards switch and jumper settings
Switch position:
Switch position:
Trunk type:
Loop start
Ground start
Metering:
Second pair (M, MM) or
Third wire, battery on M or
Third wire, ground on M
600 ¾ resistive impedance
3-component complex
impedance
The following table list switch and jumper settings for options available.
Switch Settings
1
on
1
off
off
Jumper: Unit 0
Jumper
Pin 1 to 2
Pin 2 to 3
Switch S1 (location A23)
2 3 4
off on off
Unit 0, Switch S2 (Location E29)
Unit 1, Switch S3 (Location E9)
Unit 2, Switch S4 (Location A28)
Unit 3, Switch S5 (Location A10)
2 3 4
on off off
on on on
Jumper Settings
Unit 0 jumper (Location E27)
Unit 1 jumper (Location E11)
Unit 2 jumper (Location D29)
Unit 3 jumper (Location D9)
Unit 1
Jumper
Pin 1 to 2 Pin 1 to 2
Pin 2 to 3 Pin 2 to 3
Option settings
5 6 7
on off on off
5 6 7
on off
on off
off off
off on
on off
Unit 2 Unit 3
Jumper Jumper
Pin 1 to 2
Pin 2 to 3
Circuit Card Installation and Testing
Page 63 of 74
8
8 9 10
off off
off off