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devices must be susceptible with the interference from legal communications or ISM radio wave radiated
devices.
Cabling
At the very minimum, all cables should include a braided shield. Ideal results have been obtained with twisted
pair cabling which has a foil shield surrounding each pair plus foil and 90% braid shielding around the bundle.
In addition, ensure local electrical code requirements are met.
The next cable parameters must be considered:
Braid
Must have a minimum 90% coverage
When used with braid, provides 100% coverage.
Foil
Do not use foil alone. It has a tendency to break.
Twisted Pair
Provides for cancelling of magnetic fields
Stranded
Provides the greatest surface area
Pair
Continuation of the shield to the cabinet earth ground is most important.
For discrete wire terminations, pigtails to the cabinet (connector) ground should be
Shield
extremely short (no greater than three inches).
Termination
For multiconductor connector terminations, only 360° shielded
shells should be used.
5
User Manual
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