Amer Networks SS2R48G4i V2 - Manual (Page 20)

SS2R24G4i/SS2R48G4i
9
NH
3
0.05 0.15
Cl
2
0.01 0.3
Table 2-2 Environmental Requirements Particles
2.1.1.2 Temperature and Humidity
As the switch is designed to no fan, it’s physical heat-away ,the site should still maintain a desirable
temperature and humidity. High-humidity conditions can cause electrical resistance degradation or
even electric leakage, degradation of mechanical properties and corrosion of internal components.
Extreme low relative humidity may cause the insulation spacer to contract, making the fastening screw
insecure. Furthermore, in dry environments, static electricity is liable to be produced and cause harm to
internal circuits. Temperature extremes can cause reduced reliability and premature aging of insulation
materials, thus reducing the switch’s working lifespan. In the hot summer, it is recommended to use
air-conditioners to cool down the site. And the cold winter, it is recommenced to use heaters.
The recommended temperature and humidity is shown below
Temperature Relative humidity
Long term condition Short term condition Long term condition Short term condition
15 ~ 30°C 0 ~ 50°C 40 ~ 65% 10 ~ 95%
Table 2-3 Environmental Requirements Temperature and Humidity
Caution !!
A sample of ambient temperature and humidity should be taken at 1.5m above the floor and 0.4m in
front of the switch rack, with no protective panel covering the front and rear of the rack.
Short term working conditions refer to a maximum of 48 hours of continued operation and an
annual cumulative total of less than 15 days. Formidable operation conditions refers to the ambient
temperature and relative humidity value that may occur during an air-conditioning system failure, and
normal operation conditions should be recovered within 5 hours.
2.1.1.3 Power Supply
SS2R24/48G4i switch is designed to use modular switching power supplies. The power input
specification is shown below
Nominal Input Voltage AC 100 ~ 240 VAC,
Frequency 50-60Hz
Total power consumption ≤30W
Before powering on the power supply, please check the power input to ensure proper grounding of
the power supply system. The input source for the switch should be reliable and secure, a voltage
adaptor can be used if necessary. The building’s circuit protection system should include in the circuit a
fuse or circuit-breaker of no greater than 240 V, 10 A. It is recommended to use a UPS for more reliable
power supplying
Caution !!