38
Installation instructions
Conventional fire detection control panel
6.10.1 Wiring
1. Use NON-shielded cable. The wire section should be compatible with the wire length and load connected
to the output.
2. Connect the EOL resistor (included) in parallel to the last device on the line (47 K
).
3. Connect a 1N4007 diode (or equivalent) in series to each load.
6.11 Connecting NAC outputs to the Smart/8Z expansion board
The NAC outputs on the expansion boards are programmable, supervised outputs protected by a resettable
0.9A fuse.
During standby status the panel will allow a low supervisory current to circulate on the line, with reverse
polarity to that indicated on the board. The diodes connected in series to each load on the line will ensure
that the current closes on the EOL resistor. This current allows the panel to verify cable integrity. Open or
shorted conditions on the wires will generate a fault signal: “
Open”
or “
Shorted alarm output
”.
In the event of an alarm, the output will activate and the panel will supply 24V in accordance with the
polarity indicated on the board.
Note:
In order to validate the IMQ-SECURITY SYSTEMS certification, and to comply with type C outputs, thus
suitable to command Fire Alarm signalling devices, these outputs must be programmed to activate only in
the event of fire. Furthermore, they should not be used as type E or J outputs (EN 54-1) and consequently
should not be used to command Alarm or Fault transmission devices.
6.11.1 Wiring
Refer to
paragraph 6.10.1 - Wiring
.
6.12 Connecting AUX and AUX-R outputs
6.12.1 AUX output
The AUX output supplies 24V current (27.6V
) and a maximum current of 0.9A current to power external
devices. The output is protected by a resettable fuse @ 0.9 A.
In the event of short-circuit, the panel will signal a fault.
6.12.2 AUX-R output
Figure 30 - Connecting AUX-R output
The AUX-R output supplies 24V current (27.6V
) and 0.9A current (maximum) that is removed during
reset, and therefore can be used as a power source to beam detectors, that once latched in alarm must be
switched off in order to reset to standby status.
The AUX-R output can be wired to activate/deactivate as a consequence of different conditions (refer to the
Programming section).
6.12.3 Wiring
Use NON-shielded cable. The wire section should be compatible with the wire length and load connected to
the output.
Smoke beam
detector
24V
