Barry,
As you taught me long ago the best way to power the TIU is thru the Aux port, I use the RS 18/24 power supply. Barry I want to know if I used a wire slitter/adapter would the RS 18/24 power supply be powerful enough to power 2 or more TIU's at the same time, from a single RS power supply. I have not tries this yet.
PCRR/Dave