46 C.F.R. § 113.35-13 Mechanical engine order telegraph systems; operation.
Title 46 - Shipping
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.
Title 46: Shipping
PART 113—COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT
Subpart 113.35—Engine Order Telegraph Systems
§ 113.35-13 Mechanical engine order telegraph systems; operation.
