Peavey MediaMatrix Nion, Hardware Manual

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Appendix B - Connector ports
70 Version 1.6.1.0 September 30, 2010
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Audio connections
Each audio connection on the CAB and NION products is a single, three-wire, balanced
analog circuit. The connections are identical for both microphone, line input and line output
connections. We recommend that audio connections are made with high quality shielded wire.
Note: As with any electronic connection, care should be taken to ensure that the termination is
solid. There should be no stray wire strands, kinks or nicks in the wire jacket for a proper
termination.
CAT 5 connections
Category 5 cable, or CAT 5 as it is commonly known, is a wiring standard that consists of 8
conductors, identified into 4 pairs, and although only two of these pairs are used, all four are
terminated.
It is a UTP (Unshielded Twisted Pair) configuration. The cable is coupled to in-line RJ-45
connectors, also a Bell/AT&T standard. Special crimping tools are required to make the
termination; these are widely available, as are the connectors.
Just like telco wire, there are stranded and solid varieties of CAT 5 cable. This is important to
know, because the RJ-45 connector is different for each type of wire. The standard
bent tine
connector is intended for use with solid core wire, and the aligned tine connector is for use
with standard wire. The bent tine connector will generally work on stranded wire, but not the
other way around.
The EIA standard requires no more than 1/2 inch be left untwisted. More than 1/2 inch of
untwisted cable will affect performance at high bit rates. Although only 2 of the 4 twisted pairs
are used for Ethernet, it is important that all pairs be terminated, and that the conductors be
twisted together in pairs. The illustrations should give you the basics for getting your cables,
and your audio system up and running. Although pre-made, molded style cables are preferred,
they are usually impractical, since your cabling route, distance and locations are based on the
jobsite conditions and not your test bench. Additionally, you will need rack wiring, and bulk
cable is the preferred way to dress off a wire harness.