B-1

Appendix B: Cables

Ethernet Cable

Specifications

Twisted-pair Cable

Caution:DO-NOT plug a phone jack connector into any RJ-45 port. Use only
twisted-pair cables with RJ-45 connectors that conform with FCC standards.
For 10BASE-T/100BASE-TX connections, a twisted-pair cable musthave two pairs
of wires. Each wire pair is identified by two different colors. For example, one wire
might be red and the other, red with white stripes. Also, an RJ-45 connector must be
attached
to both ends of the cable. All RJ-45 ports on the
CheetahAccess™ Wireless
Gateway
,
except for the WAN port, support automatic MDI/MDI-X configuration. This
means that you can use straight-through cable to attach the LAN ports to any
network device. However, when connecting the WAN port to a broadband modem,
you will need to use either straight-through or crossover cable, depending on the
port type used on the modem.
Figure B-1 illustrates how the pins on the RJ-45 connector are numbered. Be sure to
hold the connectors in the same orientation when attaching the wires to the pins.
Figure B-1. RJ-45 Connector Pin Numbers
Cable Types and Specifications
Cable Type Max. Length Connector
10BASE-T Cat. 3, 4, 5 100-ohm UTP 100 m (328 ft) RJ-45
100BASE-TX Cat. 5 100-ohm UTP 100 m (328 ft) RJ-45