NEMA SB 3-1969 (R1989, R1994)

Interconnection Circuitry of Noncoded Remote Station Protective Signaling Systems

National Electrical Manufacturers Association, 01/01/1989

Publisher: NEMA

File Format: PDF

$108.00$216.28

Description

Published:01/01/1989

Pages:1

NEMA SB 3-1969 (R1989, R1994) identifies a specific polar transmission circuit in a manner intended to ensure proper operation between transmitting and receiving equipment.

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