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Installation Manual
H3C VG 31-08 Voice Gateway
Chapter 2 Installation Preparations
2.1 Site Requirements
The VG 31-08 is intended for indoor use only. To ensure normal
operation and longevity of your device, install it in an environment that
meets the requirements below.
2.1.1 Temperature/Humidity
You must keep the temperature and humidity in the equipment
room within a certain range. Long-term high humidity will lead to bad
insulation or even electricity leakage, mechanical property change,
and corrosion. However, too low relative humidity is likely to leave
captive screws loose due to contraction of insulation washers and
static electricity that threatens the CMOS circuit on the device. High
temperature accelerates aging of insulation materials and lowers
reliability and service life of your VG 31-08.
The following table lists temperature and humidity requirements
for the VG 31-08.
Table 2-1 Temperature/Humidity requirements in the equipment
room
Temperature
0°C to 40°C (32°F to 104°F)
Chapter 2 Installation Preparations
Relative humidity
10% to 90%
2-1
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