TSC 800 TRANSFER SWITCH CONTROLLER
PM 049 REV 9 06/04/24 Thomson Technology
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2.8.4. The remote start contact provided is voltage free (i.e. dry contact). Exposing
the remote start contact to voltage or current levels in excess of its rating will
damage the transfer controller.
2.9. COMMMUNICATION CABLE
Communication cable wiring from the controller’s communication port must be suitably routed
to protect it from sources of electrical interference. Guidelines for protection against possible
electrical interference are as follows:
• Use high quality, 8 conductor shielded cable only with drain wire grounded at the
controller end only.
• Route the communication cable at least 3 M (10’) away from sources of electrical
noise such as variable speed motor drives, high voltage power conductors, UPS
systems, transformers, rectifiers etc.
• Use separate, dedicated conduit runs for all communication cables. Do not tightly
bundle communication cables together in the conduit. Conduit should be
ferromagnetic type near sources of possible electrical interference. The entire
length of conduit should be grounded to building earth ground.
• When communication cables must cross over low or high voltage AC power
conductors, the communication cables must cross at right angles and not in
parallel with the conductors.
For additional information on protection against electrical interference, contact
THOMSON TECHNOLOGY factory.
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