Detex DTX-4300 - Manual (Page 45)

3.1.5 Wiring the REX
Switch (Request to
Exit) The prox.pad plus unit can be wired to monitor a
remote switching device, which is intended to be in-
stalled on the “secure” side of a door. The Request to
Exit (REX) loop is a momentary input that engages the
lock output for the same length of time for which it is
programmed. This feature can be stored in the Trans-
action Log for viewing as REX.
If you elect to perform a secure installation where the
controller is mounted on the secure side of the door,
you can use the filler piece as a REX switch. To enable
the internal REX switch, enter the following program-
ming command: 30 # 7 # 1 # **
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
external REX feature requires no programming; simply
wire the unit as illustrated in Figure 3-5. To incorporate
this feature, follow the steps below:
1. Turn OFF power to the prox.pad plus unit, and
then unlatch the keypad from the plastic housing.
2. Locate connector P2 on the main circuit board.
3. Plug the 6-conductor harness into connector P2.
(The 2-pin jumper on pins 5 and 6 of connector
P2 must be removed first. See Figure 3-5.)
4. If you do not wish to install the door contacts per
Figure 3-5, 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.
3.1 Wiring the prox.pad plus Unit Chapter 3: Wiring
prox.pad plus Install/Program. Manual, PPP, D4b 3-9
Part No. 6105679, Rev. 1.1