35 of 35 REF: CCU3/C-4100.DOC REV: M September 26, 2005
Some Suggested Cables
The following suggested cables are examples of some cables that can be used,
although not all are suitable in all applications (e.g. Unshielded telephone cable would
not be useful in noisy environments, but could be suitable for a short run indoors). It is
useful to keep in mind the environment in which the cable will be run and whether it
will be subjected to large amounts of electrical noise.
As with all of the recommendations in this document, cable selection is subject to the
laws and regulations of the local authorities and must be acceptable for the intended
application.
•
CAT 5e LAN cable, STP (Shielded Twisted Pair) or UTP (Unshielded Twisted Pair)
•
Belden- 3107A Paired RS-485
•
Belden- 9562 Paired Telephone cable (unshielded)
•
Belden- 7838A Paired - T1/DS1 Central Office Interconnect/Cross Connect Cable
• Belden- 88723 Paired - Audio, Control and Instrumentation Cable
• Belden- 9729 Paired - Low Capacitance Computer Cable for EIA RS-422 Applications
• Alpha Wire Company- 6072C Alpha-Byte Low Capacitance Data Cables
Pin Connections
Pin
number
Pin Name CCU3 #1 CCU3 #2
1
Earth Shield (optional) Shield (optional)
2
Tx+ Pair #1a Pair #2a
3
Tx- Pair #1b Pair #2b
4
Common 0V shield (optional) 0V shield (optional)
5
Rx+ Pair #2a Pair #1a
6
Rx- Pair #2b Pair #1b
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