13.4.3 General Precautions; 13.4.4 Site Requirements; Figure 7-79 Lighting Equipment - NEC Univerge SV9100 System Hardware Manual
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Issue 2.0
SV9100 System Hardware Manual
For a clearer image during night time viewing, install lighting
equipment near the Video Doorphone.
Figure 7-79 Lighting Equipment
.
TIP
13.4.3 General Precautions
1.
To avoid shock or equipment damage, do not plug in or turn the
system power on before completing the installation process.
2.
Avoid working with the equipment during electrical storms.
3.
Never install Doorphone wiring during a lightning storm.
4.
Avoid parallel wiring with a power line, a TV antenna line and a FM
antenna line.
5.
Do not secure the cable using a stapler. Wiring may become
damaged and short-circuit.
6.
Avoid running cable beneath a carpet.
7.
Do not run a cable under a desk or a cabinet.
8.
Use Wire Protector when cables are run across the floor.
13.4.4 Site Requirements
Meeting established environmental standards maximizes the life of the
Doorphone. Make sure that the site is not:
1.
In strong, direct sunlight or in extremely hot, cold or humid places.
2.
In dusty areas or in areas where sulfuric gases are produced.
3.
In places where shocks or vibrations are frequent or strong.
When the door phone is used for room monitor, do not
install the extension terminals near the door phone,
feedback may be present
7-69
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