Intercall Nurse Call L634 Input/Output Unit

The L634 is used to interface an external device(s) to the Intercall system network. The unit features three input triggers; two non-latching and one remote reset and two outputs; Re-assurance LED & Open Collector which can be used to trigger external equipment for normal or emergency calls. Typical applications include telephone ringing detectors (with TA1), contacts from fire alarm or other control panels or input from remote contacts etc. It may also be used to link two independent Intercall systems together to allow signalling, such that an active alarm on one system triggers a call on the other system and visa versa
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