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VISTA-50P/VISTA-50PUL Installation and Setup Guide
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
5VDC–13.8VDC
Voltage:
Standby
Greater than 20k ohms (equivalent
Resistance:
resistance of all detectors in parallel)
Alarm
Less than 1.1k ohms (see note below)
Resistance:
Alarm
2mA–10mA
Current:
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 ASC-SS1 detector has been tested and found to
be compatible with these ratings.
3-10
CONTROL PANEL
8
7
6
5
4
3
-2
P1
JUMPER P1 ON
333 MODULE
+1
MUST BE IN
JUMPER
"B" POSITION
+
USE A 12VDC,
BATTERY-BACKED,
UL LISTED POWER
SUPPLY.
Figure 3-14: Wiring a 333PRM using a 4204 and a Power Supply
WWW.DIYALARMFORUM.COM
6
7
4
4-WIRE SMOKE
DETECTORS
+
-
HEAT
DETECTOR
+
-
FOUR-WIRE DETECTOR CIRCUIT
TO FIRE ZONE
TERMINALS
GLASSBREAK
DETECTOR
2000
OHMS
EOLR
Figure 3-15: Wiring Latching Glassbreaks to Zone 8
•
•
To wire 2-wire latching glassbreak detectors to zone 8,
perform the following steps:
Step
Action
1
Select compatible 2-wire glassbreak
detectors that meet the requirements stated
previously.
2
Connect detectors across zone 8 (terminals
21 and 22). See Figure 3-15.
3
Connect the EOL resistor at the last detector
in the loop across the zone's terminals. You
must connect the EOL resistor across
the loop wires at the last detector.
+
–
EOL POWER
SUPERVISION
RELAY MODULE
+
A77-761B
-
SHOWN POWERED.
RELAY OPENS WHEN
POWER IS LOST
2000
OHM
EOLR
ZONE 8
LATCHING TYPE GLASS
BREAK DETECTOR LOOP
The alarm current provided by zone 8
supports only one glassbreak detector in
the alarmed state.
Do not use other N.O. or N.C. contacts
when using glassbreak detectors on zone
8. Other contacts may prevent proper
glassbreak detector operation.
(+)
21
(-)
22
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