Nortel ICS Install Manual page 223

11. If your system includes Trunk Modules and or Station
Modules with DS-30 copper connectors, reconnect the
fiber interface cables to the Expansion Cartridge.
12. Power up the system.
13. Reconnect your 50-pin connector for internal telephones to
the internal telephone connector on the ICS.
14. Reconnect your external line and auxiliary equipment
wiring according to the procedures and wiring charts in the
Installation on page 227. You cannot reuse your original
50-pin connector for external lines and auxiliary
equipment, because the pin-outs have changed (unless
connections are rewired).
N0130943 02
DNs on Station Modules will change
If you simply reconnect the 50-pin connector for
telephones on the ICS, and leave your Station
Modules telephone connectors alone, your
directory numbers will change.
The new 0X32 ICS can accommodate 32
telephones. The old 8X24 KSU connected only
24 telephones. Port numbering has been
changed accordingly.
To preserve existing directory numbers consult
the wiring charts in Connecting the wiring on
page 255 and change the DNs using Change DNs
in System prgrming.
Planning the installation / 223
Modular ICS 7.1 Installer Guide