Section 3 - Installing the Control
3-13
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
).
• A combination of heat detectors and smoke detectors is not permitted on a zone programmed for fire verification.
• Fire installations require the use of a synchronization module to synchronize the sounders and strobes on the
system.
To wire 4-wire smoke detectors to zones 1-8 or polling loop expansion module zones, perform the following steps:
Step Action
1 Select 4-wire smoke detectors (see list of compatible detectors shown previously in this section).
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.
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.
•
EOL
POWER
SUPERVISION
RELAY
MODULE
EOLR-1
4-WIRE SMOKE
DETECTORS
2000
OHM
EOLR
HEAT
DETECTOR
+
BLK
+
-
CONTROL PANEL
ZONE TERMINALS
OR POLLING LOOP
EXPANDER ZONE
TERMINALS
(e.g. 4208SNF)
12
11
10
9
N.O.
POLE
N.C.
Aux. Pwr 1
CONTROL
P
ANEL
•
SHOWN POWERED.
RELAY OPENS WHEN
POWER IS LOST
AUXILIARY RELAY
8
7
+
Aux. Pwr ( )
4_wiresmk-005-V0
Figure 3-11: 4-Wire Smoke Detectors
Zone 6 Tamper Configuration
Zone 6 may be used as a tamper loop for the Vista-128FBP/Vista-250FBP Cabinet Door Tamper Switch.
Assign zone 6 to a burglary partition. Program it for day trouble/night alarm (zone type 5) when only one burglary
partition is used. Program it for 24-hr. audible alarm (zone type 7) when more than one burglary partition is used.
Enable the Zone 6 Alternate Tamper Function (program field 3
✳17).
Using 2-Wire Latching Glassbreaks on Zone 8
Zone 8 can support 2-wire glassbreak detectors. The zone provides enough standby current to power up to 50 2-wire
glassbreak detectors meeting the requirements listed below.
Compatible Glassbreak Detectors
Use detectors that meet the following ratings:
Standby Voltage:
5VDC–13.8VDC
Standby Resistance:
Greater than 20k ohms (equivalent resistance of all detectors in parallel)
Alarm Resistance:
Less than 1.1k ohms (see note below)
Alarm Current:
2mA–10mA
Reset Time:
Less than 6 seconds
NOTES:
• You can use detectors that exceed 1.1k ohms in alarm, provided they maintain a voltage drop of less than 3.8 volts in
alarm.
• The IEI 735L Series detectors have been tested and found to be compatible with these ratings.
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