Model 190 Installation, Technical and Operation8400-M022-O1 Rev J Page VII18. APPENDIX F – 190-DAC Option ......................................................................... 16918.1 Specifications ................................................................................................. 16918.2 Onboard Status/Diagnostic LED’s.................................................................. 17018.3 Setup ............................................................................................................. 17118.4 DAC Wiring .................................................................................................... 17319. APPENDIX G – 190-USB Option ......................................................................... 17519.1 Features ......................................................................................................... 17519.2 Onboard Status/Diagnostic LED’s .................................................................. 17519.3 Setup ............................................................................................................. 17619.4 190-USB Operation........................................................................................ 178