User manual

USB to RS-232 adapter

Since many modern motherboards do not have spare RS-232 headers MTCHIO is generally supplied from

the factory already connected to an on-board USB header via an included USB to RS-232 adapter and

cable.

The RS-232  USB converter transforms RS-232 signals to/from USB signals. It has been developed to

allow the MTCHIO RS-422 functionality to be retained with motherboards lacking an internal RS-232

connector. This converter is USB 2.0 compliant (12Mbps).

The RS-232  USB module must be inserted into the J1 connector.

Warning! Due to the small dimensions of the RS-232 connector, it is possible to incorrectly

insert the plug. Please ensure it is correctly aligned as in this picture: