Audible Signalling The Buzzer will signal the Control
panel status as follows:
Status Sound Pause Description
Pre-alarm 0.5 s 0.5 s Intermittent beep
Alarm 0.2 s 0.2 s Fast Intermittent beep
Fault 1 s 1 s Slow Intermittent beep
Silence 1 s 5 s
Long beep/Long pause
Reset 0.5 s 0.1 s
Short beep/Short
pause
Test 1 s 3 s
Long beep/Long pause
Test This key will allow ALL users to test the Control
panel Buzzer and LEDs (Access level 1), and Key and
PIN Code Users to test the zones (Access level 2).
To test a zone:
press the respective Zone key (Z1, Z2, ...,
Z24) and the Test key simultaneously.
n
Extinguishment Module
This section describes how the J400-EXT Extingui
-
shment Module operates.
Activation Mode The Extinguishment devices may be
activated by alarm conditions on ONE of the program
-
med zones (OR Mode), at least TWO of the program
-
med zones (At least two Mode), or ALL of the program
-
med zones (ALL Mode).
Pre-Extinguishment If the programmed ‘Activation
Mode’ conditions occur, the Extinguishment Module will
start the Pre-Extinguishment phase (indicated by glo
-
wing on the Pre Ext. LED and by activation of the Modu
-
le PR outputs) but will not activate the respective Extin
-
guishment devices immediately, thus allowing users to
verify the Alarm.
Extinguishment If the ‘Activation Mode’ conditions
are still present when the programmed Pre-Extingui
-
shment time expires, the Extinguishment Module will
activate the Extinguishment phase (indicated by glo
-
wing on the Electrovalve LED and by the activation of
the Module’s AE output). The Extinguishment devices,
(connected to the Module’s EV output) will stay On until
the alarm conditions cease, or until the programmed
Extinguishment Time expires (i.e. if the Bistable option
is disabled), or until the Disable Extinguish. key is
pressed.
Auxiliary Supervision Inputs The Extinguishment
Module provides supplementary supervision inputs for
Extinguishment Inhibition, Manual Extinguishment and
Pressure Switch control. These Supervised inputs
must pull down to0V(negative) with a 3.900 ohm resi
-
stance during standby status. In the event of interrup
-
tion or short-circuit, these inputs will generate a war
-
nings on the LED concerned.
n
Access to Signalling and Commands
There are 4 access levels, in compliance with the Fire
Safety Regulations in force.
Access Level 1 Viewing: ALL persons can view the
Control panel status.
Access Level 2 Operating the system (PIN Code ente
-
red or Key turned in the Keyswitch): ONLY Key and PIN
Code Users can operate the system.
Access Level 3 Opening the Control panel: ONLY
Qualified persons with authorization are allowed to
open the Control panel door (requires removal of the
screws) for maintenance purposes.
Access Level 4 Repairing or replacing the PCB:
ONLY the Manufacturer should be allowed to repair or
replace the PCB.
n
Power Supply
The power supply system of the J424 and J408 Control
panels complies with EN54-4.
Both models are powered by the Mains (230 V, 50 Hz):
Ø
the J408 model has Switching Power Supply which
supplies up to 1.5 A at 27.6 V;
Ø
the J424 model has Switching Power Supply which
supplies up to 2.5 A at 27.6 V;
Both models can house two 12 V batteries which, when
connected in series, will supply 24 V to the Control pa
-
nel and peripherals in the event of black-out, and will
also provide any pickup currents which exceed the ma
-
ximum current supplied by the Switching Power Supply.
Power Supply:
Ø
the J408 model can house two 7 Ah batteries (YUASA
NP 7-12 FR model or similar — flame class UL94-V2
or higher);
Ø
the J424 model can house two 17 Ah batteries
(YUASA NP 17-12 FR model or similar — flame class
UL94-V2 or higher).
This Control panel can detect, signal and store in me
-
mory the following power faults: shorted 24V or 24R
outputs (24V/24R LED); Low battery, Battery fault or
Battery disconnected (Battery LED), Ground fault
(Ground LED) and Mains failure (Mains LED).
+
The “Battery Disconnected” fault may be signalled
with a delay of up to 1 minute. The “Mains” fault will
be signalled when the programmed delay expires.
8 Conventional Fire Panels J424/J408
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