Avaya IP Office Essential Edition Installation Manual page 53

Procedure
1. External expansion modules should not be attached to a control unit that has power.
2. If the IP Office system is being installed in a rack, attach the rack mounting kit to the expansion module.
3. Attach the external expansion module's power supply but do not switch power on.
4. Connect the expansion interconnect cable from the module's EXPANSION port to the EXPANSION port 1 on the
control unit.
PARTNER Version Installation Manual
IP Office Essential Edition
Installation: Connecting an External Expansion Modules
Page 53
- Issue 1c (09 April 2010)