Table 2-7 Cabling Guidelines - Honeywell FSC-SM Installation Manual

2.4 Cabling Considerations,
Cabling and wiring
guidelines
Table 2-7 – Cabling guidelines
Consideration
Maintain a 60°C (140°F), or less, ambient air temperature at the bottom of each FSC
1
Safety Manager system.
Do all wiring according to IEEE Standard 518-1977.
2
Separate all AC and low-level DC wiring. See Table 2-4, Table 2-5 and Table 2-6 for
3
the recommended minimum distances.
4 Shields of data communications cables must be terminated at both ends. Shields of
analog signal cables must be terminated to ground only at the signal source. If a
termination is not made, or is intermittent, noise immunity is lost.
Data and power cables should cross at right angles and not run in parallel for any
5
distance.
Ensure that the entire communications network system is grounded to earth ground.
6
Maintain shield continuity. Ensure that shield leads are not broken.
7
Route cables around rather than through high noise areas.
8
28
Observe the guidelines presented in Table 2-7 when routing cables to the
FSC Safety Manager cabinet. Pay special attention to separating data
cables from power cables to avoid electrical noise problems.
FSC Safety Manager Installation Guide
Continued
Description
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