CONVENTIONAL SOUNDERS
Conventional Sounders is the term used to describe conventional alarm sounders (or bells) connected
directly to a Panel.
Loop-powered Sounders are different and are connected to the Analogue Loop.
Two Conventional Sounder circuits are provided on the Panel. More than one Conventional Sounder may be
connected to each circuit. Max. Current rating/Output is 500 mA b@ 27.5 V DC nominal.
All Conventional Sounder circuits are monitored for open and short circuit faults.If a Conventional Sounder
output is not used, then a 10 K resistor must be connected across its output terminals.
Conventional
Sounders
AUXILIARY FIRE RELAYS (2) AND FAULT RELAY (1)
Two auxiliary fire relay outputs are provided on the JUNIOR Main board. These outputs are activated when a
fire is detected (unless specifically inhibited). They are labeled AUX1 and AUX2. Under the presence of any
Fire Alarm condition, these 2 relays will be energized. Both set of contacts are of the change-over type. Max.
Contact current rating for each set of relay contacts is 1 Amp @ 50 V AC/DC resistive.
One auxiliary fault relay output is also provided. This relay output will remain closed while there are no faults
present in the system. Under any fault condition present, the relay will be deenergized and the relay contact
will be open. The Fault relay is NC, will open on any fault on the system.
The contact ratings are : 1 A, 50 V AC/DC (min 100 mA, 6 V) .
.
Auxiliary Fire
Relay Outputs
Auxiliary
Fault
Relay
Output
WARNING:
Relay outputs are not supervised. Please ensure that any wiring connected to these outputs
is power limited.
WARNING:
The total current load of all detection loops, sounder circuits and auxiliary supply outputs should
not exceed the maximum power rating of the panel. Please refer to the technical specification tables.
Manufacturers of Fire Detection Equipment
globalfire.pt
INSTALLATION & COMMISSIONING MANUAL - V1. 03/2015
JUNIOR V4-L
- FIRE ALARM CONTROL PANEL