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SL150 Installation and Setup Guide

4–4

Wiring 2-Wire Latching Glass Break Detectors On Zone 8

Use zone 8 for connection of compatible 2-wire latching-type glass break 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.

1. Connect all detectors in parallel across zone 8 (terminals 19 and 20).

Remove 2000 ohm EOL resistor if connected across the selected zone terminals. You must

connect the EOL resistor across the loop wires at the last 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: 2 mA–10 mA

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 fifty IEI 735L detectors, connected in parallel.

You should note that only one detector in the alarmed state can be supported by the alarm

current provided by zone 8.

You can use detectors which exceed 1.1k ohms in alarm, provided they maintain a voltage

drop in alarm of less than 3.8 volts.

Do not use other N.O. or N.C. contacts when using glass break detectors on zone 8. Other

contacts may prevent proper glassbreak detector operation.

2000

OHMS

EOLR

ZONE 8

LATCHING TYPE GLASS

BREAK DETECTOR LOOP

(+)

(–)

GLASSBREAK

DETECTOR

Figure 10. Glassbreak Detector Connections to Zone 8.

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Security Link SL150 Anleitung zur Fehlerbehebung Seite 26