All:

My layout is divided into 8 power districts, each with its own power supply (PH180 or PH135).  Four of these districts are yards.  I want to be able to turn off the power for these yards via the CAB-1.  

In the past (Panhandle 1.0), I used a Block Power Controller (BPC) to accomplish this task, but the 4 yards were all being powered by 1 PH180.  Here, each yard is individually powered.

Any ideas?   (My brute force solution would be to use 4 TPCs.  I'm hoping someone has a better idea.)

Thanks,

George

TCA, NMRA, PRRT&HS Modeling the PRR Panhandle Division between 1948-1957.

Original Post

You could manage up to six of them with one SC2, it has six totally independent 15A relays.  I haven't used the BPC, but I believe it also has the independent relays, there's no requirement that you power them all from one source.

gunrunnerjohn posted:

You could manage up to six of them with one SC2, it has six totally independent 15A relays.  I haven't used the BPC, but I believe it also has the independent relays, there's no requirement that you power them all from one source.

I had not considered the SC2. I will look into it.  

From the documentation, it’s not obvious to me how the BPC would be wired.  I will take another look at it.  But I would think that the BPC would be the cleanest approach.

Thanks,

George 

TCA, NMRA, PRRT&HS Modeling the PRR Panhandle Division between 1948-1957.

Well, the BPC was designed a bit differently, so it has eight outputs, but only two power inputs.  The SC2 simply has six relays with 15A capacity.  With the SC2, you can have any combination of power to the sidings from one supply for all to individual supplies for each siding.  The only thing you have to do to use the first channel freely is to cut a ground trace that was put there to make connecting switches easier.  One slice and it's all fixed, see below.

cjack posted:
Davety posted:

I'm using a PBC2 for the tracks around my turntable. Here a link to more information on the Lionel site. PBC2

Only 2 power inputs like the original BPC...he needs 4.

That may be true, since 4 of his power districts are yards and he wants to be able to turn them off. Some of those may be able to share the same power supply, unless he wants to be able to turn them all on at the same time. I usually don't have more than 1 or 2 yard areas turned on at the same time. We just don't have enough information to know for sure.

If you're having fun, you're doing it right.

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