Copyright © 2012, Juniper Networks, Inc.
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Cables and Pinouts
This chapter describes the wiring and pin assignments for the cables and connectors
that can be used with the WLA620, WLA622 and WLA632.
Twisted-Pair Cable Assignments for the WLA620
and WLA622
For 10/100BASE-TX connections, a twisted-pair cable must have two pairs of wires.
Each wire pair is identified by two different colors. For example, one wire might be
green and the other, green with white stripes. Also, an RJ45 connector must be
attached to both ends of the cable.
The following figure illustrates how the pins on the RJ45 connector are numbered. Be
sure to hold the connectors in the same orientation when attaching the wires to the
pins.
Figure 5–1. Pin Numbering on RJ45 Connector
10/100BASE-TX Pin Assignments
Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ45
connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or
100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure that the
length of any twisted-pair connection does not exceed 100 meters (328 feet).
Caution:
Each wire pair must be attached to the RJ45 connectors in a specific orientation.
Caution:
Never plug a phone jack connector into a power injector RJ45 port. Use only
twisted-pair cables with RJ45 connectors that conform with FCC standards.
Caution:
Any additional cabling used in the assembly should be a minimum UL CMX
outdoor-rated or equivalent.
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