24
Cabling
The Voxnet 218 is connected to the
Voxnet 219 over a 3-pin, screwable plug
connector.
With the cabling between the Voxnet 219
and the Voxnet 218 wall-mounted
keypad, care must be taken that in the
case of a CAT cable (S/FTP, F/FTP), the
screening is connected to the GND
cable on both sides. In addition, a pair of
cables for one signal should be closed
together. Both these measures raise the
cable cross section and thereby reduce
the voltage drop-off. Cable lengths of up
to 100 metres can be achieved with this
cabling method.
CAT cable cabling plans
Parallel switching
In the case of larger rooms it can be
advisable to place two Voxnet 218 wall-
mounted keypads at two different
locations in the room. Two Voxnet 218s
can be operated in parallel, i.e. all 3
signal cables (GND, IR and VCC) are
connected in parallel.
In order to avoid command duplication
when using remote controls, we
recommend deactivating one of the IR
receivers in a Voxnet 218 wall-mounted
keypad. This is done through a DIL
switch (DIL 1) on the rear of the keypad
(please refer also to the next chapter
"Technical data").
The maximum permissible loading on the
IR link, including the Voxnet 219 OUT
trigger, is 80 mA. The nominal power
requirement of one Voxnet 218 is 23 mA.
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