The PC4 time module is a transceiver that allows Activation of the relay for the T2 time after the T1 trigger time. The T1 and T2 times can be adjusted in the range from 1 second to 5 minutes. The relay can be used in door opening circuits, locks, gate closing systems, alarm systems, Intrusion Detection Systems, Access control systems and many others. Application: Activation of the relay for the T2 time after the T1 trigger time. Power supply: 10÷14VDC. The control inputs: S+, S-, R-. Relay output -C/NO/NC, 1A@30VDC/50VAC. Time range: 1s÷5min. Optical indication.