The IS-RS is a handset style, wall mount, audio only sub station. It connects to the IS-CCU, IS-SCU, or IS-RCU units using CAT-5e/6 cable. It can be used hands-free with the internal speaker or can be tied to an external 8 ohm speaker. The IS-RS is powered by the system.
Dry contact output (lock, strobe, etc.)
Contact input (sensor, etc.)
8 ohms output for external speaker for receiving communication from the master station and paging announcements