ADEMCO VISTA-128B, Руководство по установке и настройке, Страница: 38 / 208

VISTA-128B Installation and Setup Guide
6-4
Wiring 4-wire Smoke Detectors
To wire 4-wire smoke detectors, perform the following steps:
Step Action
Select from the list compatible 4-wire smoke detectors.
2 Connect detectors (including heat detectors, if used) across terminals of the zone
selected. All detectors must be wired in parallel. See figure 6-3.
3
Connect the EOL resistor across the loop wires at the last detector.
4-WIRE
SMOKE
DETECTOR
EOL
RELAY
NO CONNECTION
{
TO
PANEL
ZONE
(ZONE 2-8)
{
TO
PANEL
AUXILIARY
POWER
(TERMINALS 6, 7)
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.
+
–
+
–
+
–
+ –
Figure 6-3: 4-Wire Smoke Detector Connections (Zones 1-8)
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: 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
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.