46 C.F.R. § 113.35-1 Definitions.
Title 46 - Shipping
As used in this subpart: (a) Indicator means an instrument in the engine room to receive and acknowledge engine orders; and (b) Transmitter means an instrument to send engine orders to the engineroom and receive acknowledgement from the engineroom.
Title 46: Shipping
PART 113—COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT
Subpart 113.35—Engine Order Telegraph Systems
§ 113.35-1 Definitions.

