LCN I/O Board (Dual Node LCN Coax B I/O Board)Replaces KLCN-CB Model No :- CLCNI0 Part No :- 51305071 Assy no :- 51305072-600 Board Type :- CLCN-B This is the paddle board in an non-CE dual-node chassis to connect the LCN interface with the LCN "B" cable. The "A" cable is attached to the CLCN-A paddle board in the same chassis.This is the non-CE compliant version of the "B" paddle board.