Detex DTX-2300 - Manual (Page 19)

Prox.pad Installer Guide
Document # 6-055678 X2 Page 19 of 32
Wiring an External REX Switch (Request to Exit)
The prox.pad unit can be wired to monitor a remote switching device, which is intended to be installed on the secure side of
a door. The Request to Exit (REX) switch is a momentary input closure that engages the main relay for the same length of
time for which the main relay is programmed. This feature can be stored in the Transaction Log for viewing.
If you elect to perform a secure installation where the controller is mounted on the secure side of the door, you can use the
fi ller piece as a REX switch. For other installations, a separate REX switch must be purchased.
Other REX devices can be used to include a remote button placed at a receptionist’s desk, a press-to-exit switch on the inside
of a door, or a passive infrared detector, allowing free and convenient egress. The REX feature requires no programming;
simply wire the unit as illustrated in Figure 13. To incorporate this feature, follow the steps below:
1. Turn OFF power to the prox.pad unit, and then unlatch the keypad from the plastic housing.
2. Locate connector P2 on the main circuit board and remove the 2-pin jumper on pins 5 and 6 of connector P2.
3. Plug the 6-conductor harness into connector P2.
4. If you do not wish to install the door contacts per fi gure 13, twist the white wire and the orange wires together;
this is mandatory. If this is not done, the REX input will not function.
NOTE: The door contact MUST be closed for the REX feature to work properly.
NOTE: CONNECTING DOOR LOOP INPUT - Before powering up the prox.pad unit, connect the Door Loop input to
the "Loop Common." This prevents "Forced Door" or "Propped Door" conditions from developing upon power-up.
Figure 14: Wiring an External REX Switch