CHAPTER 6
RS232 CABLING INFORMATION


6.1  DB9 Connector

The communication interface follows the EIA RS232 standard. The signal assignments for a standard DB9 connector are shown below:

To connect the PCCOM 2 port adapter to other DATA TERMINAL EQUIPMENT (DTE) devices, we recommend using a DTE to DTE connection as shown below:


6.2 Null Modem Connections: RS232

If the software supplier or operating system does not specify a particular cable configuration, we recommend you use the following ˇ§null modemˇ¨ cable when XON/XOFF is utilized.


If hardware handshaking is necessary, use the following cable:


6.3 Modem Connections

A straight through cable is required, e.g. pin 2 to pin 2, pin 3 to pin 3, etc