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 Here is what Digitrax says about their cab bus wiring. [quote]QUOTE: LocoNet can actually run on just 2 or 3 wires. In a 6 wire flat configuration, as crimped onto a RJ12 6 pin style plug, the left 3 wires are effectively a "mirror" image of the right 3 wires. This allows you to "daisy-chain" outlets without worrying about whether the cables are "reversing" or "non-reversing." There are 2 ground and 2 LocoNet data connections, so the effective "loop resistance" is lower due to paralleled wires. If a ground or signal connection is broken or intermittent the network can still maintain a reliable connection. The two outside wires, typically Blue and White in a 6 conductor Telco ribbon, actually carry opposite phase copies of the master system rail packets, this is called RAIL SYNC. Because these are broadcast differentially in a single cable, we can accurately and reliably tap a remote Track booster anywhere along a LocoNet cable run. The LocoNet philosophy and architecture were carefully crafted to allow "free-form" wiring with no termination or "linear-bus" restrictions. You can "star", "tee" into, branch or expand the network any way that is convenient for you. If you do choose to "loop" the wiring back on itself (like a snake biting its tail) be sure that the outside 2 RailSync wires have a matched polarity! The center 4 pins of the RJ12 can be plugged in either orientation. [/quote] The additional RJ12 jack on the side of the panel for hooking up additional throttles or LocoNet devices that won’t be daisy chained to other devices. The two systems are totaly different even though they use the same kinds of jacks. I don't know why NCE says their panel works with the Digitrax system. They're probably not interchangable because the connections for the power (wall wart) is wired up to the RJ-12 jacks using different pins in the Digitrax panel than the NCE panel. I hope your open house was a big success [tup]
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