OK, I changed the pin definition back to 15. There is noise from the relay.
The names are 16 digit hex. Here are the names:
“51153351153C00C0″,”5115C35115CC00C0″,”51170351170C00C0″,”511D03511D0C00C0″,”51350351350C00C0”
The unit has an extension module that was not connected during this test.
The RF stations are numbers 41 through 45.
The next thing I am going to try is defining one of the first 8 zones as a transmitter.