September 2004 NEC Business Solutions Ltd
84 - Chapter 11 Specifications
Doc. No. 8846 - Release 1.1
September 2004
Environmental Requirements
Meeting established environmental standards maximizes the life of the
system. Be sure that the site is not :
• In direct sunlight or in hot, cold or humid places.
• In dusty areas or in areas where sulfuric gases are produced.
• In places where shocks or vibrations are frequent or strong.
• In places where water or other fluids comes in contact with the equipment.
• In areas near high-frequency machines or electric welders.
• Near computers, telexes, microwaves, air conditioners, etc.
• Near radio antennas (including shortwave)
Environmental Specifications
KSU, PCBs and Key Telephones Temperature:0 ~ +40 degrees (32 ~ 104
degrees F)
Humidity: 10 ~ 90% (non-condensing)
Doorphone Temperature: -20 ~ +60 degree (-4 ~ 140
degrees F)
Humidity: 10 ~ 90% (non-condensing)
Site Requirements
The KSU must be wall-mounted only. Ensure that enough space is available to allow the
installation of KSU and/or OPBOX.
AC Power Requirements
A dedicated 110/240VAC circuit located within 2 metres of the KSU is required. A separate
dedicated AC outlet is necessary for each KSU.
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