The Commodore User port found in the Commodore 8-bit computers, despite its claim to being RS232 compliant, most certainly is not. It uses a nonstandard edge connector and a different voltage than is standard for RS232C. The VIC-1011a allows one to plug in and use standard RS232C devices at standard RS232C voltages into any Commodore computer with a CBM User port.
Model : VIC-1011A Type : RS232C Cartridge Resources : Converts CBM RS232 <-> RS232C Connection: CBM User port Notes :
The VIC-1011B is a "Current Loop" type RS-232 expansion device.
Model : VIC-1011B Type : Current Loop RS232 Cartridge Resources : Converts CBM RS232 <-> RS232 Current Loop Connection: CBM User port Notes :
Click here to return to the main pictures page
If you find anything in here you have questions or comments about, feel free to leave me email right here.
To return to my home page, click here.