3.3
Connection of Fire Detectors
3.3.1
Four-wire Fire Detectors
The signal cables to which the four-wire fire detectors are connected are connected to the terminals “Z1”-“Z8”.
The common zone cables are connected to the “GND” terminals.
If it is necessary to reset the power of the fire detectors after an alarm, the plus power cable of the zone shall be con-
nected to the SMOKE terminal. In this case, after the alarm repetition interval is over (see section “Configuration”),
the power supply from the detectors will be switched off for a short time.
If resetting the power of the fire detectors is not required, the plus power cable of the fire zone shall be connected
to the PWR terminal.
3.3.2
Two-wire Fire Detectors
Two-wire
smoke
fire detectors are connected to the device only through the matcher “EFW-2”, which allows
connection of two-wire detectors according to four-wire circuit.
Figure 21: Connection diagram for two-wire smoke detectors via “EFW-2”
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