6
Pre-installation checklist
Item Requirements
Installation
site
Ventilation
•
A minimum clearance of 100 mm (3.94 in) is reserved around the
air inlet and outlet vents.
•
The installation site has a good ventilation system.
Temperature
Operating temperature: 0°C to 45°C (32°F to 113°F)
Storage temperature: –40°C to +70°C (–40°F to +158°F)
Humidity
5% RH to 95% RH (noncondensing)
Cleanliness
Dust concentration
≤
3 × 10
4
particles/m
3
(no visible dust on the
tabletop over three days)
ESD prevention
•
The gateway and floor are reliably grounded.
•
Dust-proof measures are taken in the equipment room.
•
Humidity and temperature are maintained at acceptable levels.
•
An ESD wrist strap and ESD garment are available.
•
An anti-static workbench and anti-static bags are available.
EMI prevention
•
A single-phase three-wire power receptacle with protection earth
(PE) is available for filtering interference from the power grid.
•
The gateway is far away from radio transmitting stations, radar
stations, and high-frequency devices.
•
Electromagnetic shielding, for example, shielded interface
cables, is used as required.
Lightning
protection
•
The gateway is reliably grounded.
•
The AC power receptacle is reliably grounded.
•
(Optional.) Port lightning protectors are available.
•
(Optional.) Power lightning protectors are available.
•
(Optional.) Signal cable lightning protectors are available.
Electricity safety
•
A UPS is available.
•
The power-off switch in the equipment room is identified and
accessible so that the power can be immediately shut off when
an accident occurs.
Workbench
•
The workbench is stable.
•
The workbench is reliably grounded.
Rack
•
The rack has a good ventilation system.
•
The rack is sturdy and can support the gateway and its
accessories.
•
The rack has a size that can accommodate the gateway.
•
A minimum of 0.8 m (2.62 ft) of clearance is reserved between
the rack and walls or other devices.
Safety
precautions
The gateway is far away from any sources of heat or moisture.
Installation
tools and
accessories
•
Installation accessories supplied with the gateway are ready.
•
User-supplied tools are ready.
Reference
•
Documents shipped with the gateway are available.
•
Online documents are available.
