JP1 Remotes

OK, I received the cable, and the signature is 361203. As I said, I'm a newbie, so I have plenty to learn without an extender. Thanks for your help.

I will get back after I my cable arrives. As I said, I'm a rank newbie.

When I get the cable, my plan is to download the remote, hopefully saving the learns, key moves, and macros that I've already programmed with the 9XX-code user interface. Then I will reset the remote, and download again and ...

So, now it's 2019. Has anyone validated this extender for the INT 422-3? I have bought one, and I'm diving into the JP1/RMIR world with it. Being a rank newbie, I don't know if it would be wise to me to try this extender.