C.F.R. » Title 46 » CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY › SUBCHAPTER J—ELECTRICAL ENGINEERING › PART 113—COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT › Subpart 113.35—Engine Order Telegraph Systems

46 C.F.R. § 113.35-13

Mechanical engine order telegraph systems; operation

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If more than one transmitter operates a common indicator in the engineroom, all the transmitters must be mechanically interlocked and operate in synchronism. A failure of the transmission wire or chain at any transmitter must not interrupt or disable any other transmitter.