Installation guide

12 SIGNAMAX LLC • www.signamax.eu
Temperature and Humidity
To ensure the service quality and life of 065-7434 Signamax 24-Port
10/100 L3 Switch, it is recommended to maintain a certain temperature
and humidity in the computer lab. If the humidity in the computer lab is
high for long time, it causes the poor insulation and even electricity leak
of insulation materials easily.
Sometimes, the mechanical performances of materials change and the
metal parts are corroded easily, too. If the relative humidity is too low,
insulation pads shrink, which causes the fastened screws loose.
Meanwhile, in dry environment, static electricity appears easily, which
harms the circuits on the switch.
If the temperature is too high, the reliability of the switch reduces
greatly. The long-time high temperature affects the life and speeds
up the aging of insulation materials.
The recommended temperature and humidity in computer room:
Temperature
Relevant humidity
Short-term Long-term Short-term Long-term
15 30 0 50 40% 65% 10% 90%
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 Note
1) Measuring points of the working temperature and humidity of 065-
7434 Signamax 24-Port 10/100 L3 Switch in the computer room
mean the values measured from the floor above 1.5 m and 0.4 m
from the front of the rack when there are no protection boards.
2) The short-term working condition means less than 48h continuously
and less than 15 days for the annual total.
3) Extreme adverse working environment means the environment
temperature and humidity when the air-conditioning system in the
computer room fails. Each time the normal work should be recovered
within less than 5h.
Dust-free Environment
Dust is harmful for 065-7434 Signamax 24-Port 10/100 L3 Switch
operation. Dust causes static absorption, which makes the poor contact
of metal pieces. Static absorption appears especially when the
temperature and humidity are lower, which affects the device life and
causes communication fault.
Dust requirements for the room:
Maximum diameter (µm)
0.5
1
3
5
Maximum concentration
(contained particles per
m
3
)
1.4×10
7
7×10
5
2.4×10
5
1.3×10
5