Cisco 3750G - Catalyst Integrated Wireless LAN Controller Посібник для початківців - Сторінка 26
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Before You Begin
When determining where to install the switch, verify that these guidelines are met:
• Airflow around the switch and through the
vents is unrestricted.
• Temperature around the switch does not
exceed 113°F (45°C).
• Humidity around the switch does not exceed
85 percent.
• Altitude at the installation site is not greater
than 10,000 feet.
• Clearance to the switch front and rear panels
meets these conditions:
Front-panel LEDs can be easily read.
–
Access to ports is sufficient for
–
unrestricted cabling.
AC power cord can reach from the
–
AC power outlet to the connector on the
switch rear panel.
Access to the rear of the rack is sufficient
–
for connecting StackWise cables to
stacked switches.
26
• Cabling is away from sources of electrical
noise, such as radios, power lines, and
fluorescent lighting fixtures.
• For 10/100/1000 ports, the cable length from
a switch to an attached device cannot exceed
328 feet (100 meters).
• For cable lengths for small form-factor
pluggable (SFP) modules, see the
documentation that shipped with the module.