"Raymarine Raymarine SeaTalk / Alarm Output Interface Cable (1.5m), The Raymarine E55054 is 1.5m SeaTalk/alarm output interface cable and has 6-pin twist lock connector at E-series display end, and wire leads at the other
It is an interface cable for connecting E-Series displays to SeaTalk instrument networks. Also supports connection to external alarm. E55054 Features: SeaTalk/Alarm Output Interface Cable, Part Number: E55054, 1.5m Cable Length, Interface Displays to SeaTalk Instrument Networks, 6 Pin Lock Connector, Connects External Alarms, Compatible With: Raymarines s E-Series Display"