The LA152 Has 6 ports Port A contains 2 RJ12 six wire connectors.
All six wires are connected between the 2 A ports.
Port B is a 4 wire RJ14 connector, the outer 2 wires in port A are not connected to port B Port C contains 2 five wire DIN connectors Port LMAB contains screw terminals for the 4 wires needed to connect ExpressNET.
The idea of Digitrains was conceived over the dinner table and grew very slowly as doubts calmed missionary zeal. We finally took the plunge in January 2005 and are fortunate to be dealers for some of the best and most user friendly DCC equipment available.