PCM-6D input/output module is an intelligent addressable four-wire wiring configuration.
The module has two channels, single output and single input. Two independent LED indicators indicate the status of the two channels respectively. The indicators can be in blinking normal operation, steady on or off state according to the command issued by the fire alarm system.
The input channel monitors a passive switching signal input and feeds its status back to the controller. When normal communication, the indicator light is steady on, when short circuit, the indicator light can be extinguished when special needs.
