HAPTER 7
RS422/RS485 CABLING INFORMATION

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:



7.4 RS485 Cabling Information for DB9

The RS485 signal assignment is shown as follows.

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