Is it possible to avoid "black holes"?

I have the DIgitrax controller going to the Digikeijs DR4088 (similar to the BDL168) for track occupancy detection - no problem. I do have sections on the layout which use Tam Valley Depot auto reversers. Up to now I have powered them direct from the controller but that leaves a big section of track with no detection and hence potential collisions if a train stops or splits.  I have just tried treating them as a normal section and feeding them from the DR4088, as per the attached diagram, but the auto-reverser always draws about 40mA which makes the DR4088 think the track is always occupied. Has anyone come across this before as I would rather like to avoid 2.5mtr sections resembling a "black holes".

Why not create an isolated area just a bit longer than  the maximum length of the locomotives you have that would be supplied through the main bus and the auto reverser not through the DR4008 and create 2 more blocks either side of that isolated section through the DR4088. The software you use may well have a facility that allows you to have an undetected short section.

The only problem that may occur is if you have coach lighting but that would be a problem even you have short blocks.


Brian

Ok so I had a response yesterday from Digikeijs showing a modified wiring plan so that the Tam Valley auto-reverser feeds the power to the DR4088 which then provides power to the track in the normal way. Downside is that a bank of 8 detectors is then powered from the auto-reverser. Anyway went ahead and tested it this morning only to find that the effect is the same i.e. the track shows occupied all the time. Back to the drawing board.

John at Digitrains had suggested I contact DCC Train Automation as the main Digikeijs importers so this morning I gave them a call. As soon as I explained my setup they immediately said there was no way to have an auto-reversing section with the DR4088 and Tam Valley auto-reverser and get track detection because of the way the auto-reverser actually works. Two solutions were put forward, an LS-Digital autoreverser which works in a different way and can work with the DR4088 and a Digitrax BXPA1 self contained auto-reverser and train detection unit.

So I have ordered a Digitrax BXPA1 unit and will test it and report back. It does mean, if it works, that I will have three Tam Valley auto-reversers superfluous to requirements - ah well.