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3
I
S
ELECTING A
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:
◆
restrict access to authorized service personnel in accordance with IEC
■
60950-1. A restricted access location is one where access is secure and
limited to service personnel who have a special key, or other means of
security
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 40 °C (32 to 104 °F)
■
and its humidity within 5% to 95%, non-condensing
provide adequate space (approximately five centimeters or 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. Verify that
the external power requirements for the selected option can be met as
listed under
NSTALLING THE
S
ITE
"Power Supply" on page 68
S
WITCH
.
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