If a USB port is available on the PC, then use an AutomationDirect USB to RS232 PC to Panel Programming Cable Assembly shown above, to connect between the USB port on the PC and the RJ12 connector on the CPU's PORT1.
If a 9-pin RS-232 serial communications port is available on the PC, then use an AutomationDirect PC Serial Programming Cable, D2-DSCBL, to connect between the 9-pin port on the PC and the RJ12 connector on the CPU's PORT1.
NOTE: PORT1 on the CLICK CPU module is designed as the primary programming port. The port has fixed communication parameters, so you can always connect the programming software to the CLICK CPU module through the port without any configuration headaches.
If you have a CLICK Ethernet CPU, simply connect a standard Ethernet cable to the Ethernet port on your PC.
Or if you have a CLICK Ethernet CPU, and wish to connect to it within a local area network, simply connect Ethernet cables into your switch or hub as shown. Many other Ethernet topologies are also possible.