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Terminal Wiring Guidelines,
Functions, Ratings, and
Requirements
Input and output wiring guidelines
The following table provides information and
guidelines about the functions, ratings, and
requirements for the input and output terminals;
and references guidelines for determining proper
wire sizes and cable lengths.
In addition to the wiring guidelines in the following
table, observe these guidelines when wiring inputs
and outputs:
• Run all low-voltage wiring and cables separate
from high-voltage wiring.
• All input and output cables, regardless of wire
size or number of wires, should consist of
stranded, insulated, and twisted copper wires.
• Shielded cable is not required for input or
output cables.
• Shielded cable is required for input and
output cables that are exposed to high
electromagnetic or radio frequency noise.
• Inputs or outputs with cables less than 30 m
(100 ft) typically do not require an offset in
the software setup. Cable runs over 30 m (100
ft) may require an offset in the input/output
software setup.
6
IOM3733 Input/Output Module Installation Guide
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