• NEMA SB 3-1969 (R1994)

NEMA SB 3-1969 (R1994)

  • Interconnection Circuitry of Noncoded Remote Station Protective Signaling Systems
  • standard by National Electrical Manufacturers Association, 01/01
  • Category: NEMA

$40.00 $20.00

Identifies a specific polar transmission circuit in a manner intended to ensure proper operation between transmitting and receiving equipment.
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