Instruction manual

2. Preparation for Installation

2.6 Environmental Conditions

(1) Dust

Cooling fans are embedded in switches. Do not install a switch in a humid or dusty place. The dust conditions of the

switch are as follows:

• Airborne dust concentration: 0.15 mg/m

or less (according to JIS Z 8813 Measuring Methods for Suspended

Particulate Matter Concentration in Air - General Requirements)

(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

This device 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.

This 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.

Generally, areas around printers or lots of people contain a lot of toner or dust. Do not install a

switch in such places.