I have two ZW-Ls and a #990 Cab forward. I also have two Powerhouses with the Powermasters, TMCC Cab Controller and Command Base. Do I need my Powermasters, Powerhosues, cab controller, and base?
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IMO, no you don't need them. The ZW-L does what the Powermasters do. It comes with its own Powerhouses. The CAB-2 controller and 990 Legacy base are a huge upgrade over the original TMCC CAB-1 and Command Base. The only component I would think about keeping is the CAB-1. If your CAB-2 ever fails, you could use it as an emergency backup. However... personally in that situation, I would use the ZW-L handles, or buy a CAB-1L. My $.02.
@Ted S posted:The only component I would think about keeping is the CAB-1. If your CAB-2 ever fails, you could use it as an emergency backup.
Uhh... the CAB1 doesn't talk to the Legacy command system, so he'd better keep both the CAB1 and the BASE1 if it's his backup. 
Thanks for correcting my misinformation John. I edited my post so as not to mislead anyone.
Does a Cab 2 talk with TMCC engines?
Yes - you can operate a TMCC engine with a Cab 2 remote and base.
When adding the engine, remember to program it in as a TMCC engine.
