Ethernet Cable Specifications - ProSoft Technology RLX2-IHx Series User Manual

Appendix B - Radio Hardware
User Manual
Using Power over Ethernet (PoE) to power remote devices has several
advantages:

"Carrier Class" Power Over Ethernet system.

Power can be supplied over long distances, up to 300 feet.

Power can be available wherever network access is available.

The power supply can be centrally located where it can be attached to an un-
interruptible power supply.

You can easily power or reset the attached equipment from a remote
location.

There is no need to run additional power cabling to the device as power can
be supplied over the CAT5, CAT5E, or CAT6 Ethernet cable.

You can save on the cost of coax cable and reduce RF losses for remote
mounted radios.

Built-in Ethernet surge protection to prevent equipment damage.

Overload and short circuit protection.
8.3

Ethernet Cable Specifications


The recommended cable is Category 5 or better. A Category 5 cable has four
twisted pairs of wires, which are color-coded and cannot be swapped. The
module uses only two of the four pairs when running at 10 MBit or 100 MBit
speeds. All eight wires are used when running at 1000 MBit speeds.

Category 5e or better cable is recommended for 1000 MBit speeds.

The Ethernet port on the module is Auto-Sensing. Use either a standard
Ethernet straight-through cable or a crossover cable when connecting the
module to an Ethernet hub, a 10/100/1000 Base-T Ethernet switch, or directly
to a PC. The module detects the cable type and uses the appropriate pins to
send and receive Ethernet signals.

Ethernet cabling is similar to U.S. telephone cables, except that it has eight
conductors. Some hubs have one input that can accept either a straight-
through or crossover cable, depending on a switch position. In this case,
ensure the switch position and cable type agree.

Refer to Ethernet Cable Configuration (page 199) for a diagram of how to
configure Ethernet cables.
Page 198 of 250
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