* The IS-CCU allows a connection of four door / sub stations and four master stations.
* It features inputs for up to two IS-SCU, four IS-RCU, and one IS-IPC to expand the system using CAT-5e/6 cable.
* The IS-CCU has four public address outputs, eight contact outputs, two video BNC outputs, four contact inputs and two chime inputs each with individual volume control.
* A PC is required to set up the system and is set up via browser. 
* The unit can be rack mounted to an EIA standard rack (2U required) or wall mount using brackets.
* It is powered using an external 48V DC power supply, IS-PU-UL.