User Manual

8
Bit1
bit2
bit3
bit4
termination
The Contact Interface consists of a 10pin 0.100” pitch male header that is keyed.
The Contact interface allows for sensing contact closure as commands for sending out
RF commands. Please refer to the Dry Contact Interface Section for details on
commands. The bit pairs indicated above (bit1 thru bit4) can be used individually or in
combinations to make 16 different dry contact events.
The outermost pair of pins (nearest the edge of the Qmotion Qconnect) is used to
enable the RS485 internal terminator. When daisy-chaining multiple Bridges together
using the RS485 interface, the first device (usually the initiator, PC interface, controller)
will have termination enabled, and only the last physical device in the daisy chain will
have termination enabled. For instance if three Qmotion Qconnect devices are daisy
chained together, only the last Bridge on the chain will have the terminator enabled.
A suitable mating connector such as WSW Components AWP10-7540-T-R or
equivalent may be used to interface the Qconnect Dry Contact Jack.