Our RS232 software allows to capture, log, analyze rs232 data from RS232 ports.
	Our RS232 port monitor software allows to capture, analyze and debug rs232 data from RS232 ports. This software can work with ASCII, HEX or binary data

DB9 serial (RS232) loopback. Pinout and signals for building a serial port loopback (CheckIt)

The PC loopback plug is a useful diagnostic tool. The loopback plug connects serial inputs to serial outputs so that the port may be tested. There is more than one way to wire up a loopback plug - but this is the most common. Used to verify that a port is working. This one works with CheckIt.

DB9 pin D-SUB male (at the computer)

Please, select datasheet page Index --------- Serial port interface --------- Introduction --------- Pinout and signal --------- Connectors and signals PC pinout and signals Full DB25 RS232 port pinout and signals Serial data transfer cable PC DB9 RS232 port pinout and signals PC DB25 RS232 port pinout and signals PC DB25 serial (RS232) loopback (CheckIt) PC DB25 serial (RS232) loopback (Norton) PC DB9 serial (RS232) loopback (CheckIt) PC DB9 serial (RS232) loopback (Norton) Serial printer --------- Cables and signals --------- Serial and RS232 port monitor cables RS232 two-wire modem cable (DB25-DB25) RS232 two-wire modem cable (DB9-DB25) RS232 modem cable (DB25-DB25) RS232 modem cable (DB9-DB25) RS232 modem cable (DB9-DB15) Null modem cable (DB25-DB25) Null modem cable (DB9-DB25) Null modem cable (DB9-DB9) Serial printer cable (DB25-DB25) Serial printer cable (DB9-DB25)