NEC Aspila EX Hardware Manual page 171

CÔNG TY VIỄN THÔNG VIỆT PRO
Meeting established environmental standards maximizes the life of the system. Be sure that the site is
not:
1. In direct sunlight or in 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.
4. In places where water or other fluids comes in contact with the main equipment.
5. In areas near high-frequency machines or electric welders.
6. Near computers, telexes, microwaves, air conditioners, etc.
7. Near radio antennas (including shortwave).
Cabinets, PCBs and Key Telephones
Temperature: 0
Humidity: 10-90% RH
CAUTION: The VMSU-A1 and APSU-A1 exceptions.
Door Box
Temperature: -20
Humidity: 20-80% (non-condensing)
Power Supply
Operating:
Temperature: 0
Humidity: 20-90% RH
VMSU-A1/APSU-A1 PCBs
Temperature: +5
Humidity: 10-90% RH
A dedicated 240 VAC 50 Hz circuit located within 2 metres of the cabinet is required. You should
install a separate dedicated outlet for each cabinet.
The system can be floor-, wall- or 19" rack-mounted.
Brackets supplied with each cabinet allow wall, floor and rack mounting (rear mounting strips are
A seperate rack mount shelf is available for 19" rack mounting.
Aspila EX Hardware Manual
Chuyên phân phối tổng đài NEC
Section 7: Specifications and Parts List
Environmental Requirements
Environmental Specifications
o o o
C - +40 C (32 - 104 F)
o
They are limited to: +5 C - +40
o o
C - +60 C (-4 - 140
o o o
C - +40 C (32 - 104 F)
o o o
C - +40 C (41-104
Power Requirements
Double Pole/Neutral Fusing
(power supply fuses located at both the L and N side)
Site Requirements
required for rack mounting using the bracket supplied with the cabinet).
o o
C (41-104 F).
o
F)
F)
Caution
Section 7: Specifications and Parts List
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