37 – PIN D-SHELL	25 - PIN D- SHELL

To connect the PCCOM 4 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 “null modem” cable when XON/XOFF is utilized.

If hardware handshaking is necessary, use the following cable:

Some serial devices have the buffer control signal on pin 19, in which case pin 6 on the host is connected to pin 19 on the remote device.

6.3 Modem Connections

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

6.4 DB9 Connector

The signal assignments for a standard DB9 connector are shown below: