CHAPTER 7
RS422/RS485 CABKUBG UBFIRNATUIB

7.1 RS422 Cabling Information for DB25

The communication interface follows the EIA RS422 standard. The signal assignments for a standard DB25 connector are shown below:

To connect the RS422 to other DATA TERMINAL EQUIPMENT (DTE) devices, the developers recommend using a DTE to DTE connection as shown below.



7.2 RS422 Cabling Information for DB9

The communication interface follows the EIA RS422 standard. The signal assignments for a standard DB9 connector are shown below:

7.3 RS485 Cabling Information for DB25

The RS485 signal assignment is shown as follows:

The RS485 communication is based on cable sharing method, which is connected as following. Please short pin2 and pin3, pin6 and pin20 by yourself.


7.4 RS485 Cabling Information for DB9

The RS485 signal assignment is shown as follows.

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Please short pin2 and pin3, pin4 and pin6 for using RS485.