SBS H2 Installation, Operation & Maintenance Instructions Manual page 11

Alarm System Electronics
Please refer to the illustration below to identify proper power and relay connection points in the
detector. It is advisable to use a pair of 14 gauge or smaller stranded wire for the relay contacts to
help reduce any interference within the area that may cause false alarms.
Each of the Cat5 sensor input connections has a status indicator LED on the main control, which will
illuminate solid green when a sensor is connected and operating normally. A sensor's corresponding
LED will flash at the same rate as the strobe LED when detecting 1% or 2% H
LED for a sensor that is in alarm mode will flash at the same rate as the strobe LED. The alarming
sensor and strobe LED will flash at a faster rate than the LED for a sensor that is only in warning
mode.
Terminal Connection Diagram
Using the Mechanical Relays
1. Remove the front cover of the main control by removing two fix screws and pulling straight off
the body. This will reveal the inner electronics of the alarm box.
2. Locate the terminal blocks for the relays and determine which condition you would like the
relay to be related to. Use the 1% relay (Terminal J6) for the warning condition and the 2%
relay (Terminal J3) for the alarm condition.
3. Replace the front cover on the alarm box.
SBS-H2 Users Manual, Rev. 07-17-TNEMH2 Page 11
concentration. The
2
July 2017