Environmental, Power, And Safety Considerations; Temperature And Humidity; Power Consumption - Nortel m3900 series User Manual

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Environmental, power, and safety
considerations
Purpose
This chapter addresses the following considerations for the M3900 Series
Meridian Digital Telephones:
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Temperature and humidity

Table 31 "Temperature and humidity" (page 139)
and humidity for operating and for storage.
Table 31
Temperature and humidity
Item
Operating temperature
Operating relative humidity
Storage temperature
Storage relative humidity

Power consumption

Table 32 "M3900 sets power consumption" (page 140)
consumption for the M3900 series sets.
Copyright © 2008 Nortel Networks
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temperature and humidity
power consumption
line engineering
accessory environmental information
safety and electromagnetic compatibility
Range
0 to 50 C (32 to 104 F).
5% to 95% (noncondensing). At temperatures above 34 C
(93 F) relative humidity limited to 53 mbar of water vapor
pressure.
-50 to 70 C (-58 to 158 F).
5% to 95% (noncondensing). At temperatures above 34 C
(93 F) relative humidity limited to 53 mbar of water vapor
pressure.
Nortel Communication Server 2100
M3900 Series Meridian Digital Telephones User Guide
NN42200-110 09.01 Standard
20 August 2008
shows the temperature
shows the power
139