Concept Pro VXM4-4 User Manual - page 45
Manual is about: 4 Channel Digital Recording System
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APPENDIX C: CONNECTING
APPENDIX C: CONNECTING
EXTERNAL DEVICES
EXTERNAL DEVICES
TELEMETRY
Connect RS485D+ to the ‘+’ or ‘A’ terminal of any attached
telemetry devices. Connect RS485D- to the ‘-’ or ‘B’
terminals
ALARM INPUTS
Connect voltage free contacts from PIRs, beam break
detectors etc. to the ‘GND’ terminal and ‘INX’ terminals of
choice
RELAY OUTPUT
Connect the ‘COM’ terminal and ‘NO’ or ‘NC’ terminal of
choice to activate low voltage sounders, strobes etc