Pre-Installation Considerations - Cisco SR2024 User Manual

Chapter : Installaton

Pre-Installation Considerations

Full-Duplex Considerations
The Switch provides full-duplex support for its RJ-45 ports. Full-duplex
operation allows data to be sent and received simultaneously, doubling
a port's potential data throughput. If you will be using the Switch in
full-duplex mode, the maximum cable length using Category 5 cable is
328 feet (100 meters).
1000BASE-T Cable Requirements
All Category 5 UTP cables that are used for 100Base-TX connections
should also work for 1000Base-T, providing that all four wire pairs are
connected. However, it is recommended that for all critical connections,
or any new cable installations, Category 5e (enhanced Category 5)
or Category 6 cable should be used. The Category 5e specification
includes test parameters that are only recommendations for Category
5. Therefore, the first step in preparing existing Category 5 cabling for
running 1000Base-T is a simple test of the cable installation to be sure
that it complies with the IEEE 802.3ab standards.
Positioning the Switch
Before you choose a location for the Switch, observe the following
guidelines:
Make sure that the Switch is accessible and that the cables can be
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connected easily.
Keep cabling away from sources of electrical noise, power lines, and
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fluorescent lighting fixtures.
• Position the Switch away from water and moisture sources.
To ensure adequate air flow around the Switch, be sure to provide a
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minimum clearance of two inches (50mm).
Do not stack free-standing Switches more than four units high.
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24-Port 10/100/100 Ggabt Swtch