1. Hose-McCann Communications Model: MWTH-B-FG126 or equivalent shall be a watertight, sound-powered telephone primarily used for emergency marine and industrial communication where external power may be unavailable. a. Core Technical Specifications (1) Operating Principle: Sound-powered, requiring no batteries or external electricity. (2) Station Capacity: 12 stations with selective ringing. (3) Enclosure: Fabricated with Fiberglass Reinforced Polyester (FG). (4) Signaling Device: Equipped with a 6-inch external brass gong for audible ringing. (5) Mounting: Designed for surface bulkhead installation. (6) Environmental Protection: Watertight seal provided by a rubber gasket secured along door channels. (7) Internal Climate Control: Includes a 110 VAC heater and thermostat to prevent moisture buildup inside the enclosure. b. Component Details (1) Handset Features: Equipped with a "Press to Operate" push button and a secure locking bracket. (2) Cord: Standard coiled cord is 1 foot long, expandable to 6 feet. (3) Transmitter/Receiver: Identical and interchangeable units. (4) Color: Finished in a light gray. (5) Overall Length: 14.000 inches (6) Overall Width: 6.625 inches (7) Overall Depth: 7.5 inches (8) Weight (Phone): 30 lbs 2. Hose-McCann Communications Model: SE-FG126 or equivalent shall be a robust, battery-less marine communication device, featuring a rugged aluminum case, bulkhead mounting, connection terminals for flashing lights, and operates via voice power for reliability, ideal for high-noise environments like engine rooms. a. Core Technical Specifications (1) Operating Principle: Sound-powered, requiring no batteries or external electricity. (2) Station Capacity: 12 Stations with selective ringing. (3) Enclosure: Fiberglass Reinforced Polyester (FRP) with a watertight, hinged door. (4) Signal Device: Typically equipped with an audio signaling device, such as a remote watertight bell (often 6- inch brass) or an internal buzzer. (5) Mounting: Designed for surface (bulkhead) mounting. (6) High Noise Immunity: Designed to work in up to 110dB noise levels. (7) Visual Signaling: Includes terminals for connecting external flashing lights for alerts in very loud areas. (8) Rugged Construction: Cast aluminum housing protects against water and debris. (9) Internal Climate Control: Includes a 110 VAC heater and thermostat to prevent moisture buildup inside the enclosure. b. Component Details (1) Handset Features: Equipped with a “Press to Operate” push button and a secure locking bracket. (2) Cord: Standard coiled cord is 1 foot long, expandable to 6 feet. (3) Transmitter/Receiver: Identical and interchangeable units. (4) Color: Finished in light gray. (5) Overall Length: 9.023 inches (6) Overall Width: 9.05 inches (7) Overall Depth: 7.654 inches (8) Weight (Phone): 9.5 lbs
