Instruction manual

2. Preparation for Installation
114
2.6 Environmental conditions
(1) Dust
Cooling fans are embedded in the Switch. Do not install the Switch in a humid or dusty
place. The dust conditions of the Switch are as follows:
 Airborne dust concentration: 0.15 mg/m
3
or less (according to JIS Z 8813
Measuring Methods for Suspended Particulate Matter Concentration in Air - General
Requirements)
NOTE
Generally, areas around printers or lots of people contain a lot of toner or dust. Do
not install a switch in such places.
(2) Corrosive and flammable gases
Install a switch somewhere without corrosive or flammable gases. Corrosive gas can
deteriorate the switch and reduce its reliability.
(3) Floor surface material
The Switch can be installed in an ordinary office room. However, it is recommended that
the floor surface be the following:
 Fire resistance
 Dust-free
(4) Direct sunlight
Do not expose the switch to direct sunlight.
(5) Water
Keep the device away from spilt water when cleaning the floor.
(6) Electromagnetic interference
Note high-frequency equipment might emit interfering waves and affect normal operation
of the Switch.
The Switch also generates faint high-frequency radio waves and might have an effect on
indoor antennas for television, radio and transceivers within 30 m of the device.
(7) Protecting cables
Route the cables through ducts or cover them for protection.
Mice might bite off unprotected cables.
Optical fiber requires special handling; lay the cables with a bend radius of more than
100 mm along the major axis and 50 mm along the minor axis, and protect them with
metal covers.
Regarding optical fiber cables containing the required number of cores, ensure that there
is a protective structure against repeated mechanical stress due to bending, stretching,
compressing and straightening during laying the cables as well as environmental stresses
after installed.
(8) Spraying
Before using pesticide spray or disinfectant in the room where the device is installed,