Secutron MR-2605

Secutron Inc. 26
Table 4 MR-2605 Terminal Descriptions
TRB NC Common Trouble relay, Normally Closed contact
The Common Trouble relay is normally energized and is de-energized on trouble.
Contacts are shown in the de-energized state.
Contacts are rated 30 V
DC, 2 Amps.
ALM NO Common Alarm relay, Normally Open contact
ALM C Common Alarm relay, Common contact
ALM NC Common Alarm relay, Normally Closed contact
The Common Alarm relay is normally de-energized.
Contact is shown in the de-energized state.
Contacts are rated 30 V
DC, 2 Amps max.
Z1+ Zone 1 positive input
Z1- Zone 1 negative input
Zone output is 24 V
DC nominal to power 2-wire smoke detectors. Maximum current draw is
60 mA in alarm and is limited by the zone circuitry. Zones may be configured to monitor
both 2-wire smoke detectors and initiating devices that employ dry contacts. (manual
stations & heat detectors)
Z2+…..Z5+ Same as zone 1 positive
Z2-…..Z5- Same as zone 1 negative
Note: For each supervised installation wire, a separate terminal must be used.
Te rm in a l
Label
Description