Garmin :: Why will the SAC 7-35-XX will not communicate during setup? Nov 28, 2014 | Why will the SAC 7-35-XX will not communicate during setup? 1 Comment admin on November 28, 2014 at 8:04 pm 1) What kind of terminal emulator are you using? Hyper terminal is the most common used. (baud: 9600, bits:8, stop bits:1, parity: none) and connected to COM:1 port of the computer. 2) Bad DIN connector. 3) No ADC power. 4) Once the ADC is connected to the computer, cycle the power on the ADC and check for the configuration page on the computer screen.