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WORRY FREE GUARANTEE! 
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With over 10,000 satisfied customers, Sima S. Enterprises offers the
finest quality industry proven USB, RS-232, RS-485, RS-422, TTL, Ethernet, and
Fiber Optic converters available. All of our products are
shipped the same day ordered and come with a 30 day satisfaction guarantee and a 5 year manufacturer's warranty.
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DOWNLOADS
DATASHEETS
| RS232 TO RS485 CONVERTERS | ||
| CON-485-PE9 |
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RS232 to RS485 Converter |
| CON-485-PE25 |
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25 Pin RS232 to RS485 Converter |
| CON-485-PI9 |
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Industrial Grade RS232 to RS485 Converter |
| ISO-485-PI9 |
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Opto-Isolated RS232 to RS485 Converter |
| CON-485/422-PI9 |
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RS232 to RS485 / RS422 Converter |
| CON-485/422-EE9 |
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Externally Powered, Opto-Isolated, RS232 to RS485 / RS422 Converter |
| RS232 TO RS422 CONVERTERS | ||
| CON-422-PE9 |
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RS232 to RS422 Converter |
| CON-422-PE25 |
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25 Pin RS232 to RS422 Converter |
| CON-485/422-PI9 |
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RS232 to RS485 / RS422 Converter |
| CON-485/422-EE9 |
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Externally Powered, Opto-Isolated, RS232 to RS485 / RS422 Converter |
| RS232 REPEATERS | ||
| REP-232-3P |
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RS232 Opto-Isolated 3-Wire Repeater |
| ISOLATED CONVERTERS AND SURGE SUPPRESSORS | ||
| ISO-232-3P9 |
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RS232 Isolator 3-Wire |
| ISO-485-PI9 |
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Opto-Isolated RS232 to RS485 Converter |
| CON-485/422-EE9 |
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Externally Powered, Opto-Isolated, RS232 to RS485 / RS422 Converter |
| TTL CONVERTERS | ||
| TTL-232-5P |
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RS232 to 5V TTL Converter |
| TTL-232-33P |
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RS232 to 3.3V TTL Converter |
| TTL-485-5P |
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RS485 to 5V TTL Converter |
| USB ADAPTERS | ||
| USB-232-2 |
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USB to RS232 Converter |
| USB-485B |
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USB to RS485 Converter |
| USB-485C |
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USB to RS485/RS422 Converter |
| USB-TTL-5 |
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USB to 5V TTL Converter |
| USB-TTL-33 |
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USB to 3.3V TTL Converter |
| FIBER OPTIC CONVERTERS | ||
| 232-FIBER-SM |
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RS232 to Fiber Optic Converter - (Single Mode) |
| 232-FIBER-MM |
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RS232 to Fiber Optic Converter - (Multi-Mode) |
| SER-FIBER-SM |
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RS232 / RS485 / RS422 to Fiber Optic Converter - (Single Mode) |
| SER-FIBER-MM |
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RS232 / RS485 / RS422 to Fiber Optic Converter - (Multi-Mode) |
| ETH-FIBER-SM |
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10M/100M Ethernet to Fiber Optic Converter - (Single Mode) |
| ETH-FIBER-MM |
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10M/100M Ethernet to Fiber Optic Converter - (Multi-Mode) |
| ETH-FIBER-SM-2 |
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10M/100M/1000M Ethernet to Fiber Optic Converter - (Single Mode) |
| ETH-FIBER-MM-2 |
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10M/100M/1000M Ethernet to Fiber Optic Converter - (Multi-Mode) |
DRIVERS
| USB ADAPTERS | |
| USB-232-2 | USB To RS232 Adapter 2.0 FTDI Drivers |
| USB-485B - 2.0 Version | USB To RS485 Adapter 2.0 FTDI Drivers |
| USB-485B - 1.1 Version | USB To RS485 Adapter 1.1 Drivers |
| USB-485C - 2.0 Version | USB To RS485/RS422 Adapter 2.0 FTDI Drivers |
| USB-485C - 1.1 Version | USB To RS485/RS422 Adapter 1.1 Drivers |
TOOLS
| SERIAL SOFTWARE TOOLS | |
| ACCESSPORT | RS232/RS485/RS422 Terminal Program |
RMA FORMS
| RMA FORM | Follow Directions on our Returns Page |
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