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I need some help with connecting up Loconet T and B sockets on the YD7001.

I was under the impression that the Loconet B connector was to be used to connect up booster modules and the Loconet T connector was to be used to connect up all the feedback modules.

?

The DR5033 manual shows Loconet B being used between command station and booster. A separate Loconet T cable is used to connect the command station to the feedback modules. So 2 cable runs needed - a T and a B.

However...

The YD7001E manual shows Loconet B connecting the YD7403 booster and the YD6016LN-CS and presumably GND feedback modules. So only 1 cable run needed. If there are no booster modules then the diagrams show the Loconet T being used.

?

Can I please get a better understanding of whether modules can all daisy chain off the Loconet B connector on the YD7001 or whether I still need to make different runs to the feedback and booster modules. Perhaps things changed from the digikeijs era.

A bit more research shows that Loconet B is required for the YD7403 and DR5033 boosters but the YD6016LN-CS/GND can operate on either Loconet T or Loconet B. It's only Loconet throttles or anything requiring pins 1 and 6 to be powered that need Loconet T.

The difference between Loconet T and B is what is carried on pins 1 and 6. Either Railsync for the boosters or 7v for Loconet throttles. The feedback modules don't seem to care.

I saw some other information that said that Locconet B was limited to 200mA but Loconet T had a 'higher' current capability. The total current will depend on the command station. For the YD7001 the total Loconect current is 750mA maximum.

The upshot of this is that the YaMoRC manuals are correct. In my case I will have 7 YD60616LN-CS modules just on the lower deck so I had better keep the Loconet T and B cable runs separate. I put the YD7403 and YD6016LN-CS on the same physical mounting panel so I will be specifying a booster for each current detection feedback module. In theory I could have up to 7 locos per booster operating, but the YD8116 connects to track so it will be using a bit of that available current.

Sorry about answering my own question. I guess I should have looked a little more before posting.