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should be powered via splitters following the rule of one 15VDC / 2.8A power
supply per 8 monitors. When several monitors may call at the same time (have
the same address) this must be taken into consideration when selecting the
number of power supplies (assume one 15VDC / 2.8A power supply per 6
monitors calling at the same).
Combiners supply power to the door entry unit via a ribbon cable connected to
the EXTMOD2 port. Combiners can be installed at a further distance from the
door entry unit - in which case the door entry unit must be supplied using a
dedicated wire: +DC and GND panel terminals connected to +15V and GND
combiner terminals . In CDNVS combiner the ribbon cable needs not be plugged
in. In CDNVSp intermediate combiner the ribbon cable must be plugged in
(control of the camera image in slave door entry unit) - use the ARK-RS module,
offered by ACO, as ribbon cable extension.
Refer to chapter "Connecting more door entry units in the system" for more
information on master/slave systems. Visit www.support.aco.com.pl to download
sample video installation diagrams.
6. Before initial power-up:
When wiring is completed and verified as correct (use a meter to check for
possible short circuit in the uniphone line and between other terminals). Before
plugging UTP to the monitor, splitter and combiner, it is absolutely necessary to
check if all RJ-45 plugs are properly crimped, check for short circuits between
wires and for continuity of cables.
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