Honeywell VISTA-128BPT - Figure 3-11: 4-Wire Smoke Detectors

VISTA-128BPT/VISTA-250BPT Installation and Setup Guide
3-10
Wiring 4-Wire Smoke Detectors
U
L
Power to 4-wire smoke detectors must be supervised with an EOL device (use a System Sensor EOLR-1 EOL relay
module connected as shown in Figure 3-11).
To wire 4-wire smoke detectors to zones 1 – 8, perform the following steps:
Step Action
1 Select 4-wire smoke detectors (see list of compatible detectors shown previously).
2 Connect detectors (including heat detectors, if used) across terminals of the zone selected. All detectors must
be wired in parallel. See Figure 3-11.
NOTE: If you are using the J7 output trigger to reset the smoke detectors, refer to Smoke Detector Reset later
in this section for the wiring instructions.
3 Connect the EOLR at the last detector in the loop across the zone’s terminals. You must connect the EOLR
across the loop wires at the last detector.
+
_
+
_
+
+
_
_
_
+
HEAT
DETECTOR
4-WIRE
SMOKE
DETECTORS
V128BP-002-V1
NO CONNECTION
C
NC
NO
RESET
RELAY 1, 2, 3, OR 4
4204 RELAY MODULE
NOTES:
· PROGRAM THE RELAY TO
TRANSFER ON FIRE ZONE
RESET (ACTIVATION CODE 54).
SEE 4204 RELAY MODULE
SECTION FOR DETAILS.

· SECOND CODE AND OFF
ENTERED AT CONSOLE
MOMENTARILY INTERRUPTS
DETECTOR POWER.
SHOWN POWERED.
RELAY OPENS WHEN
POWER IS LOST.
EOL POWER
SUPERVISION
RELAY MODULE
EOLR-1
2k
EOLR
TO
FIRE ZONE
TERMINALS
TO
AUXILIARY
POWER
TERMINALS
Figure 3-11: 4-Wire Smoke Detectors
Tamper Supervision for the Hardwired Zones
The system can be programmed to monitor for either an open condition or a short condition of a tamper switch on zones
1-8. End-of-line supervision is required for this option.
Wiring a Tamper Switch to Zones 1-8
The wiring of the tamper switch depends on whether the tamper switch and the sensor are normally open or normally
closed.
• If you are using a normally closed sensor, the tamper switch must be normally open. Refer to Figure 3-12 for
the wiring configuration.
• If you are using a normally open sensor, the tamper switch must be normally closed. Refer to Figure 3-13 for
the wiring configuration.
• For the normally closed sensor, program the zone for trouble on short. For the normally open sensor,
program the zone for trouble on open.
To wire a tamper switch on a hardwired zone, connect the EOL resistor at the last detector in the loop across the zone’s
terminals. You must connect the EOL resistor at the last detector for proper operation of the tamper
supervision.
NOTE: These zones cannot be programmed for any 24 hour zone type and that tamper supervision is only in the
disarmed state. When armed goes into alarm.
NOTE: For zones with a response type of 9 or 16 (Fire), the tamper selection must be “0” none.