The System Wiring - Bentel J424 Installation Manual

AE Activated Extinguishment Output
This Output is for "Activated Extinguishment" signal.
Operating principles
Ø Standby status: negative pull-down to 0 V on the [+]
terminal; positive pull-up to 27.6 V on the [–] terminal.
Ø Activated status: positive pull-up to 27.6 V on the [+]
terminal; negative pull-down to 0 V on the [–] terminal.
If the Extinguishment Confirmation
DISABLED (at default), the AE Output will activate
when the Extinguishment phase starts.
If the Extinguishment Confirmation
ENABLED, the AE Output will activate when the PS
Input activates during or after the Extinguishment pha -
se (refer to "Pressure Switch Input" under "Enrolling:
Extinguishment Modules" in the "PROGRAMMING
FROM A PC").

The System Wiring

+
Use shielded cable only for all connections, with
one end of the shield connected to the Control pa-
nel negative terminal and the other left free.
!
High Voltage leads (230 V) must be bunched
separately from Low Voltage leads (24 V). All
leads must be bunched in such a way as to avo-
id contact with other wiring and components.
n Connecting Fire Detectors
This Control panel supports Conventional Fire Detec-
tors (i.e. devices which resemble the operating mode of
open contacts during standby status, and resistors du-
ring Alarm status).
+
DO NOT connect more than 30 devices to each
zone.
Z2
R2
24
24V 24
C
O1
Figure 14 Wiring diagram of 3 detection devices to a zone: 109) 3900 ohm EOL Resistor, 1/4 W (orange-whi -
te-red-gold); 110) 1N5919 Diode (or similar) — necessary when the Bypass Missing Detectors option is enabled;
*) Callpoint contact resistance — required if the Call point priority
option is
option is
L1 L2
24 V relay
L
NC
NA
INSTALLING THE CONTROL PANEL
Connect Conventional Fire Detectors as per Figure 14.
Operating principles
Ø Terminals L1 and L2, respectively, the power input
and output terminals of the detector (these terminals
connect when the detector is attached to its base,
and disconnect when it is removed);
Ø terminal L — the negative power terminal of the de -
tector;
Ø EOL resistor 109 — to be connected between termi -
nal L1 and terminal L of the last detector. The EOL
resistor allows the system to check continuity and
detect short-circuits;
Ø Diodes 110 — necessary when the Bypass Missing
Detectors option is enabled (further details in the fol -
lowing paragraph).
+
Connect any unused zone terminals to negative
with a 3900 ohm, 1/4 W resistor.
The Control panel and Expander Modules provide suffi-
cient 3900 ohm, 1/4 W resistors to balance their zones.
This Control panel also accepts Fire detectors with Nor-
mally-Open Alarm Outputs, as shown in Figure 15.
Connect a 680 ohm (111) resistor in series to the Nor-
mally-Open contact, then connect the series of the
contact with the resistor and the Normally-Open contact
to the zone terminal.
Bypass Missing Detectors If this option is enabled,
the zone concerned will exclude any inoperative (Mis-
sing) detectors from the system configuration, thus allo-
wing detectors connected downstream of 'Missing' de-
vices to operate as normal.
110
NO
680 W
270 W
C
Conventional
Detector
Conventional
Detector L1 L2
*
L
Manual
Call Point
+
Fire
Door
Holders
–
110
109
+
–
29