The Central Exchange Unit (CEU) is the "brains" of the AX
Series. All master and door stations homerun to the CEU for connection and
programming. All CEU's have RJ-45 jacks for station connection, programmed dry
contacts for remote control functions (door release etc.), video output, CO line
output, and an RS-232 connection for programming, event log output, and
CCTV/Access Control interface.
