Examining The Installation Environment - H3C S1850V2-EI Series Installation Manual

Examining the installation environment

To ensure correct operation of your switch, make sure the installation environment meets the
requirements listed in Table1-2.
Table1-2 Checking list for the installation environment
Item
Ventilation and heat dissipation
Anti-moisture
Temperature/humidity
Lightning protection
Requirements
CAUTION:
To ensure correct operation of your device, make sure the installation
environment is adequately ventilated to prevent the switch from
overheating.
•
Ensure a minimum clearance of 10 cm (3.94 in) around the chassis.
•
Do not install the device near a heat source, for example, a stove or
heater.
•
Ensure air ventilation in the installation environment.
•
Do not block the ventilation holes in the device or power adapter.
CAUTION:
Water or moisture might damage the circuits of the device.
•
Do not place the device near water or in a damp environment.
•
Install the switch in a clean, dry, and ventilated place where
temperature is controlled in a stable range.
•
Make sure the installation environment is free from water leakage or
condensation. If required, install a dehumidification device (such as
an air conditioner with a dehumidification function or a dedicated
dehumidifier).
•
Do not operate the device under or near the water source, such as
the wash basin, laundry room, or areas with high humidity.
•
Do not touch the device with wet hands.
For correct operation and long service life of your switch, maintain the
temperature and humidity in the equipment room at acceptable ranges.
•
Lasting high relative humidity can cause poor insulation, electricity
leakage, mechanical property change of materials, and metal
corrosion.
•
Lasting low relative humidity can cause washer contraction and
ESD and cause issues including loose mounting screws and circuit
failure.
•
High temperature can accelerate the aging of insulation materials
and significantly lower the reliability and lifespan of the switch.
For the temperature and humidity requirements of the switch, see
technical specifications in S1850V2-EI Switch Series Hardware
Information and Specifications.
CAUTION:
Ground the switch correctly and verify the grounding. For more
information, see "Grounding the
•
If you ground the switch by using a grounding strip, make sure the
grounding resistance of the grounding strip in the equipment room is
less than 1Ω.
•
If you ground the switch by using a grounding conductor buried in
the earth ground, make sure the grounding resistance of the
grounding conductor in the ground is less than 10Ω.
•
Route the signal cables along indoor walls, bury the cables in the
earth ground, or thread the cables through steel tubes. Install a
signal lightning arrester with a nominal discharge current for a
1-2
switch."