5.3.7
Power supply
A 2-pole connection (Fig. 15/14) with an
output current of 21 to 27 V DC is available
for the DET-AC III Slave power supply in
case of a DET-AC III Master and
DET-AC III Slave combination of
extinguishing units. This output is protected
by a 500 mA fuse and supplied with emer-
gency power.
In the case of the power supply, the voltage can drop to 19.4 V DC solely through
batteries (in the event of mains failure). The power is shut off automatically below
19.4 V DC (deep discharge protection).
5.3.8
USB port
Operating states or results can be down-
loaded and settings can be made via the
USB port (Fig. 16/15). This, for example,
includes reading out the error memory, set-
ting the time and date, uploading new Firm-
ware. Further information
“Maintenance program” on page 92
INFORMATION
The USB port is not suitable as a power source.
5.3.9
Connection for networking
The system DET-AC III Slave is connected
via the connections RJ12
‑
A total of up to four additional extinguishing
systems can be controlled via the active
extinguishing system. Further information in
the operating instruction of the
extinguishing system DET-AC III Slave.
Fig. 15: Power supply
Fig. 16: USB port (type B)
Fig. 17: Connection for networking
Structure, function and connections
Operating Instructions / DET-AC III Master / 916005 / 11-2022 / en_US
34
