The JB5000 is connected to the WP5000 to allow expansion of the system. It is supplied complete with two 6 metre cables (can be trimmed to required length) with weatherproof sockets to allow connection to the WV3 and HP5000.
Connection can also be made to a radio navigation receiver, log DL200, and masthead wind instrument system, WD200. Both are implemented by 2 wire inter-connections.