Oops you are right. The difference is that the "A" is discontinued but that's it. I didn't look down far enough, either can be used with a station port also.

Another thought and question after seeing that. What doorphone are you using? Viking used to make a rebranded E20 for Lucent, that was one of the Partner doorphones. Looks like all Viking doorphones are similar except for the packaging. You can connect it directly to a Partner port and program it for a doorphone. No need for that controller at all. Give that a shot.

-Hal

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