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4. ALERT RELAYS
1
ALERT INPUT (when DIP switch 2 is on)
2
ALERT RELAY OUTPUT
Both RELAY 1 and RELAY 2 INPUTs are supervised when DIPSWITCH 2 in ON.
Supervised inputs detect fault or tampering of inputs and send an ALERT RELAY
activation to the opposite unit (Typically from the Node unit to the Base unit).
Supervised inputs will detect an input shorted to ground (or each other) or an open
input (loose or cut wire). Connect the supplied 1K ohm and 2K ohm resistors across
the device to be monitored as shown. IMPORTANT: resistors must be connected at
the device to be monitored NOT AT THE XRE-100 RELAY INPUT.
When in Supervise Mode, unused inputs must be terminated with the supplied 3K
ohm resistor. Simply insert the resistor into the Rx and COM pins on the desired
connector and tighten screw blocks.
If Supervised Inputs are not desired, simply leave DIPSWITCH 2 OFF and wire your
contact directly across the Rx and COM pins.
NOTE: Communication Loss - If the XRE-100 units stop communicating the Alert
Relay Output(Black relay) will trigger. Alerting on loss of communication between
devices.
XRE-100
Unused Input
Detects: OPEN (cutwires) or,
Customer
Wires
1. Supervise resistors (supplied) must be at con-
tact.
3K
2. Associated DIPSWITCH SW2 must be ON
3. Connect contact directly, without resistors for
unsupervised inputs. SW5 and SW6 = OFF.
SHORT (wire to each other or ground)
7
SUPERVISOR RESISTOR
COLOR CODES
1K OHM
2K OHM
3K OHM
3K OHM
Monitored
2K
Contact
1K
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