• During standby status, terminal [C] closes to
terminal [NC].
• In the event of fault, terminal [C] closes to
terminal [NO].
Note: EN54-2 certification applies only
when the fault output is not J (EN 54-1) type.
Therefore, you must not use this output to
manage fault transmission devices.
SC1, Sounder circuit
This sounder circuit is a supervised, silenceable,
bypassable or disabled bell output for the alarm
signaling devices. Terminals for the connection of
devices that are activated with the positive 24V must
be supervised.
During standby status, negative pull-down to 0 V
on [+] terminal; positive pull-up to 27.6 V on the
[–] terminal. When the control panel is in alarm
status, positive pull-up to 27.6 V on the [+] terminal;
negative pull-down to 0 V on the [–] terminal.
Silence the SC1 using the menu command DISABLE.
Note: You cannot program this output, it
activates every time the control panel goes into
ALARM status.
SC2, Sounder circuit
This sounder circuit is a supervised, silenceable,
bypassable or disabled programmable bell output,
for the panel alarm signaling or panel delay to
alarm or panel warning or panel fault or 1,2,3 or 4
software zones(OR) alarm, or 1,2,3 or 4 software
zones(OR) warning or 1,2,3 or 4 software zones
(OR) fault or 1,2 or 3 points(OR) alarm or 1,2 or 3
points(OR) delay to alarm or 1,2 or 3 points(OR)
warning or 1,2 or 3 points(OR) fault. During standby
status, negative pull-down to 0 V on [+] terminal;
positive pull-up to 27.6 V on the [–] terminal. When a
programmed event occurs, positive pull-up to 27.6 V
on the [+] terminal, negative pull-down to 0 V on the
[–] terminal. You can force the SC1 and SC2 outputs
to standby by resetting the control panel. The SC
outputs hold standby status for the programmed
silence time. If alarm conditions are present when
the programmed silence time expires for the SC1
or another programmed event for the SC2, they
reactivate.
Note:
• SC1, SC2 accept devices that operate
within SELV limits only.
• The SC2 output, if programmed as SC1, is
type C.
• If using a 2-wire connection loop, the
EN54-2 certification only applies when
the total number of devices, including
detectors and manual callpoints, does
not exceed 32.
Auxiliary outputs
OC1-OC2
These outputs are silenceable, bypassable or
disabled, unsupervised and programmable. These
are open-collector terminals for the panel alarm
signaling (default) or panel delay to alarm or
panel warning or panel fault or 1,2,3 or 4 software
zones(OR) alarm, or 1,2,3 or 4 software zones(OR)
delay to alarm, or 1,2,3 or 4 software zones(OR)
warning or 1,2,3 or 4 software zones(OR) fault or 1,2
or 3 points(OR) alarm or 1,2 or 3 points(OR) delay
to alarm or 1,2 or 3 points(OR) warning or 1,2 or
3 points(OR) fault, which will be close to ground,
when the connected event becomes active, and will
remain in this state until the generating event has
ended (so after a manual reset or a fault restore).
You can program the output OC1 to signal the
telephone line failure so it can combine with a relay,
for switching from the primary phone line to the
reserve line.
You can also force the OC1 and OC2 outputs to
standby by resetting the control panel.
The OC1 and OC2 outputs activate with a delay
equal to the delay to alarm time when the
programmed event occurs.
Note: EN54-2 certification applies only when
OC1 and OC2 outputs are not C or J or G, EN
54-1 type. Therefore, do not utilize this output
to manage the fire alarm device or fire or fault
transmission devices or automatic fire alarm
system.
24R [GND]
Resettable auxiliary power supply to devices
that operate at 24 V, 1A max. are powered by the
following standby batteries:
• Positive (27.6 V) on terminal [24R];
• Negative on terminal [GND].
Note: This power supply disconnects for 2
seconds when resetting the control panel, so
it is suitable for devices that restore when the
power supply disconnects.
FC503 and FC506 Addressable Fire Control Panels 25
Johnson Controls - CONFIDENTIAL
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