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Installation
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Wire lengths to power supply
The maximum wire length between the power supply and the VideoTerminal is
dependent on the wire diameter used. It is
50 m for 0.6 mm diameter and 80 m for 0.8 mm diameter
If these maximum wire lengths are exceeded, malfunctioning of the VideoTerminal
may occur.
1. Specify the optimum installation location: As the installation height, it is recom-
mended that the centre of the display be positioned between 1.60 m and
1.70 m.
2. Install the modular function profile, or the mounting frame (see mounting
instructions for function profile or mounting frame).
3. Remove the VideoTerminal from the device box.
4. Open the required wire inlets on the device box and guide in the supply wires.
5. Insert the device box in the function profile or the mounting frame and screw
on.
6. Connect the VideoTerminal:
the 2-wire bus on the BUS terminals,
the power supply (24 V DC, 700 mA) on the AS (ZV) terminals and,
if necessary, the floor-call button on the ET terminals.
7. Insert the VideoTerminal in the function profile or the mounting frame and fas-
ten with 4 screws.
8. Lay on the glass cover and press it on until the retaining springs engage.
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Start-up procedure of VideoTerminal
After the operating voltage is connected, the software of the VideoTerminals is
started. This start-up procedure takes approx. 30 seconds. During this time the
operating button lights up yellow.
6
BUS ET ZV
ZV
BUS
BUS
ET
ZV
230 V AC
Spannungsversorgung
24 V DC
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