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How to determine the max distance of a DS Multiplex module protected loop wire.


  • The D7S460i, DS7461i, DS7457i & DS7465i multiplex modules have a maximum protection loop wiring distance of 250 ft using 22 AWG wire or 600 ft using  18 AWG wire. 

  • Maximum Impedance: 4.05Ω at  +68°F (+20°C) nominal