Section 4: Specifications and Parts List
Product Description
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4
Environmental Specifications
Cabinets, PCBs and Key Telephones
Temperature: 0
o
C - 40
o
C (32 - 104
o
F)
Humidity: 10-90% RH
CAUTION: The VMSU-A1 and APSU-A1 exceptions.
They are limited to: +5
o
C - 40
o
C (41-104
o
F).
Door Box
Temperature: -20
o
C - 60
o
C (-4 - 140
o
F)
Humidity: 20-80% (non-condensing)
Power Supply
Operating:
Temperature: 0
o
C - 40
o
C (32 - 104
o
F)
Humidity: 20-90% RH
Storage:
Temperature: -40
o
C - 75
o
C (-4 - 167
o
F)
Humidity: 10-95% RH
VMSU-A1/APSU-A1 PCBs
Temperature: +5
o
C - 40
o
C (41-104
o
F)
Humidity: 10-90% RH
Power Requirements
A dedicated 110 VAC 60 Hz circuit located within seven feet of the cabinet is required. You should
install a separate dedicated outlet for each cabinet.
Caution
Double Pole/Neutral Fusing
(power supply fuses located at both the L and N side)
Site Requirements
The system can be floor-, wall- or rack-mounted. Brackets secure each cabinet to a wall.
