INST
ALL
ATIONGUIDE
GDMS 2
Interlock inputs, mains installation and output attributes
The Emergency stop, fire and thermal link
interlocks are all normally closed circuits. If
these aren’t being used then they must be
linked out. As many estops, thermal links and
fire alarm signals can be added, as is neces-
sary, as long as the loop is broken by each
device connected.
See “setting up zone
attributes” on page 4
Beacon output activates on pre alarm and alarm
24v Sounder output activates on alarm and deactivates on
pressing the mute button
Thermal link relay output can be used to operate fire alarms or
I/O modules programmed to alert the buildings occupier.
Pre-alarm and alarm relays operate in conjunction with the fascia LED
indicators. They are reset when the system is reset via the fascia pushbutton
Mains supply
should be via a
local fused spur
fitted with a
5amp fuse using
suitable mains
cable
The feed out to
the gas valve
should also have
a local isolator
near the gas
valve
