FireClass FC506 - Installation; Installing the control panel

21
Note: This power supply disconnects for 2 seconds when
resetting the control panel, so it suits devices that restore
when the power supply disconnects.
24A [GND]
This is auxiliary power supply for devices that operate at
24 V, 1A max always and guaranteed by the following
batteries:
 Positive (27.6 V) on terminal [24A];
 Negative on terminal [GND].
RS485
24V|B|A|GND|SH
These are the terminals for the FC500 repeater,
(maximum 8) and the FC500MFI module (maximum 4, 1A
max). Types of terminals include:
 Serial bus terminals [A] and [B];
 27.6 V power voltage terminals [GND] and [24V].
Note: The maximum cable run allowed is 1000m.
Battery
+BAT-
Terminals to connect the batteries inside the FC503,
FC506 control panel.
The system wiring
Internal and external wiring:
Note: If you use conductors with a total cross-sectional
area of 0.5 mm
2
or greater, use the procedure found in the
IEC 60332-1-2 and IEC 60332-1-3 standards.
If you use conductors with a total cross-sectional area of
less than 0.5mm
2
, use the IEC60332-2-2 standard.
CAUTION
Bunch high voltage leads (230V) separately
from low voltage leads (24V). Bunch leads
in a way that avoids contact with other
wiring and components.
Note: Use only shielded cable for all connections, with one
end connected to the SH terminal of the control panel and
the other one left free.
Connecting addressable devices
The control panel FC503 has one main loop or three sub
loops for addressable analogue devices. The control panel
FC506 has two main loops or six sub loops for
addressable analogue devices. The maximum number of
connecting addressable devices for one main loop is 250
addressable analogue fire detectors and analogue devices
such as input modules and output modules.
Every detector and module connected to the loops must
have a unique address. You can use two or four wires for
the loop connections.
Specify the loop connection type during the programming
phase. The following figures illustrate the loop
connections:
 Figure 8 illustrates the 2-wire connection to Loop 1.
 Figure 9 illustrates the 4-wire connection to Loop 2.
Whatever the type of connection performed, ensure that
any short or open circuit in the wiring does not lead to the
loss of more than 32 detectors. It is necessary to fit an
isolator every 32 detectors.
If using a 2-wire connection type, you can connect
addressable analogue fire detectors and analogue devices
such as input and output modules on the left and
right sides. There are two spur circuits per sub loop