LevelOne GEL-2870, Руководство по установке, Страница: 35 / 74

– 35 –
3
I
NSTALLING THE
S
WITCH
S
ELECTING A
S
ITE
Switch units can be mounted in a standard 19-inch equipment rack or on a flat
surface. Be sure to follow the guidelines below when choosing a location.
◆ The site should:
■
be at the center of all the devices you want to link and near a power
outlet.
■
be able to maintain its temperature within 0 to 45 °C (32 to 113 °F)
and its humidity within 10% to 90%, non-condensing
■
provide adequate space (approximately two inches) on all sides for
proper air flow
■
be accessible for installing, cabling and maintaining the devices
■
allow the status LEDs to be clearly visible
◆ Make sure twisted-pair cable is always routed away from power lines,
fluorescent lighting fixtures and other sources of electrical interference,
such as radios and transmitters.
◆ Make sure that the unit is connected to a separate grounded power outlet
that provides 100 to 240 VAC, 50 to 60 Hz, is within 2 m (6.6 feet) of each
device and is powered from an independent circuit breaker. As with any
equipment, using a filter or surge suppressor is recommended.