Installing 2-Wire Latching Glassbreak Detectors To Zone 8; Figure 6-3: 4-Wire Smoke Detector Connections (Zones 1-8) - ADEMCO VISTA-128B Installation And Setup Gude

VISTA-128B Installation and Setup Guide
Wiring 4-wire Smoke Detectors
To wire 4-wire smoke detectors, perform the following steps:
Step
2
3

Installing 2-Wire Latching Glassbreak Detectors to Zone 8

Use zone 8 for connection of compatible 2-wire latching-type glassbreak detectors. After an
alarm, the first code + OFF turns off the siren and disarms the system; the second code +
OFF clears the memory of alarm and resets the glassbreak detector.
Compatible Glassbreak Detectors
Use detectors that meet the following ratings:
Standby Voltage:
Standby Resistance:
Alarm Resistance:
Alarm Current:
Reset Time:
The IEI 735L Series detectors have been tested and found to be compatible with these
ratings. You can use up to 50 IEI 735L Detectors connected in parallel.
You can use detectors which exceed 1.1k ohms in alarm, provided they maintain a voltage drop of
less than 3.8 volts in alarm.
6-4
Action
Select from the list compatible 4-wire smoke detectors.
Connect detectors (including heat detectors, if used) across terminals of the zone
selected. All detectors must be wired in parallel. See figure 6-3.
Connect the EOL resistor across the loop wires at the last detector.
EOL
{
RELAY
+
TO
PANEL
ZONE
(ZONE 2-8)
–
TO
–
{
PANEL
AUXILIARY +
POWER
(TERMINALS 6, 7)
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.

Figure 6-3: 4-Wire Smoke Detector Connections (Zones 1-8)

5VDC–13.8VDC
Greater than 20k ohms (equivalent
resistance of all detectors in parallel)
Less than 1.1k ohms (see note below)
2mA–10mA
Less than 6 seconds
+
–
4-WIRE
SMOKE
–
DETECTOR
+
NO CONNECTION
C NC NO
RESET
RELAY 1, 2, 3 OR 4
4204 RELAY MODULE