Series HMI Connection Manual Danfoss VLT 2800 (FC protocol) HMI Factory Setting: Baud rate: 9600. 8. EVEN. 1(RS-485) Controller Station Number: 1 Control Area / Status Area: None/None Connection a. RS-232 (DOP-A/AE/AS, DOP-B Series) DOP series Controller 9 pin D-sub male (RS-232) RXD (2) (7) TXD TXD (3) (4) RXD GND (5) (2) GND (3) RTS (6) CTS b. RS-485 (DOP-AS57 Series) DOP series HMI Controller 9 pin D-sub male (RS-232) RXD (2) (7) TXD TXD (3) (4) RXD GND (5) (2) GND (3) RTS (6) CTS V1.00 Revision March, 2010 19