No ignorance, it's just a new product haha so you wouldn't be in the know unless you saw the catalog. The TMCC system used the CAB1 remote. The Legacy system uses a CAB2 remote (discontinued) and a CAB1L remote. A few days ago, Lionel official announced that the newest version of remote control would be the CAB3 base. It will combines all the remotes above, plus a few other Lionel remotes, and your smart phone/tablet.
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