Our adapter is based on the FTDI FT232R converter, which has proven reliable in our experience. Our adapter has the Male RJ45 Connector with null modem pin-out to allow for direct connection to noah / hart system boards. The USB ID is NOT serialized so adapters can be exchanged without undue hassles / repeated driver install on mildew-brained operating systems.

Noah/Hart                USB2RJ45

RJ45 console             cable         

Female socket           

1 RTS                          1 CTS

2 DTR                          2 DSR           
3 TXD                         3 RXD
4 GND                        4 GND
5 GND                        5 DCD
6 RXD                         6 TXD

7 DSR                         7 DTR
8 CTS                          8 RTS