Due to wrong resistive divider, enable of isolators and transceiver direction couldn't be changed. Resistors values are changed to: <html> <body> <!--StartFragment--> Des. | Value -- | -- R45 | 3k9 R44 | 1k R48 | 510 R56 | 470 R57 | 470 R50 | 3k9 R49 | 1k R53 | 510 R58 | 470 R59 | 470 <!--EndFragment--> </body> </html>
Due to wrong resistive divider, enable of isolators and transceiver direction couldn't be changed. Resistors values are changed to: