Evaluating and Meeting Cable Requirements
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
35
Radio Frequency Interference
If you use UTP cabling in an installation, take precautions to avoid RF interference. RF interference can
cause degradation of signal quality, and, in an Ethernet network environment, can cause excessive
collisions, loss of link status, or other physical layer problems that can lead to poor performance or loss
of communication.
To prevent RF interference, avoid the following devices or situations:
● Attaching UTP cable to AC power cables
● Routing UTP cable near antennas, such as a ham radio antenna
● Routing UTP cable near equipment that could exhibit RF interference, such as ARC welding
equipment
● Routing UTP cable near electrical motors that contain coils
● Routing UTP cable near air conditioner units
● Routing UTP cable near electrical transformers
In areas or applications where these situations cannot be avoided, use fiber optic cabling or shielded
twisted pair cabling (STP).
Making Network Interface Cable Connections
Use the appropriate type of cable to connect the ports of your switch to another switch or router.
Working carefully, one port at a time:
1 Verify that you have identified the correct cable for the port.
2 Use an alcohol wipe or other appropriate cleaning agent to clean the cable connectors; make sure
they are free of dust, oil, and other contaminants.
3 If you are using optical fiber cable, align the transmit (Tx) and receive (Rx) connectors with the
correct corresponding connectors on the switch or the I/O module.
4 Press the cable connectors into their mating connectors on the switch or I/O module until the cable
connector is firmly seated.
5 Repeat steps 1 through 4 for the remaining cables on this or other switches or I/O modules.
6 Dress and secure the cable bundle to provide appropriate strain relief and protection against bends
and kinks.
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