3M sea talk-ng spur cable Used to Connect Individual sea talk-ng devices to the backbone For Use with e & C series widescreen, g series, and ST70 Systems Seating spur cable, 9' 10 inch (3 M), Mfg# A06040, used to connect individual sea talk-ng devices to the backbone. For use with E & C Series widescreen, G Series, and St70 systems.