User Manual

18
DRY CONTACT OPERATION
The dry contact interface allows for external contact closures such as those from relay
contacts to initiate RF commands.
The Qmotion Qconnect has four (4) pairs of male header pins which can be used to
wire in contact control signals. The dry contact interface provides it’s own source
power for making contact closure determination. A low impedance path established
by an external switch or relay can be sensed by the Bridge and will initiate an RF
command equivalent to the binary value of the contact input. For instance a contact
closure of the input pins associated with “bit1” will cause binary button code 0001 (1
Decimal, 0x01 hex) to be transmitted. Contact closure of the input pins “bit3” and
“bit1” will cause binary button code 0101 (5 decimal, 0x05 hex) to be transmitted.
Please refer to APPENDIX A for button code values.