The IP500 4-Port Expansion Card expands the built-in 8 expansion ports on your Avaya IP500 control unit to a total of 12.
Avaya IP500 4-Port Expansion Features
4 RJ-45 Expansion Ports – Provides 4 additional expansion ports for connection of external expansion modules. This card is used in large configurations where the first 8 expansion ports on the back of the IP500 control unit are in use.
Maximum – 1 per IP500 control unit Includes 4 two meter yellow cables for connection of the external expansion modules