The Lenel® Input Control Module (ICM) provides the access control
system with high-speed acknowledgment of critical alarm points
in monitored areas. The ICM communicates directly with the
Intelligent System Controller (ISC) either by 2-wire or 4-wire RS-485
communication. The ICM has 16 configurable input control points and
2 output control relays. It supports normally open, normally closed,
supervised and non-supervised circuits.
The input circuits are scanned using an analog-to-digital converter. The
digitized input status signal is software-monitored and controlled, so that
each input point can be programmed as a supervised or non-supervised
alarm point.
The output relays can also be configured for fail-safe or fail-secure
operation. Each relay supports the “On,” “Off,” and “Pulse” Lenel
OnGuard® software command