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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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SERIAL RS232 TO RS485 CONVERTERS |
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Model CON-485-PE9 |
Data
SheetThe SerialComm CON-485-PE9 is a bi-directional port powered RS232 to RS485 converter in a 9-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to RS485 converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 3-way terminal block on the RS485 side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $54.95 $39.95
Model
CON-485-PI9 |
Data
SheetThe SerialComm CON-485-PI9 is an industrial grade bi-directional port powered RS232 to RS485 converter in a 9-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to RS485 converter has a DB9 female connector on the RS232 side and an attached 4-way terminal block on the RS485 side. 300 to 115.2K Baud Operation. Price: $65.95 $45.95
Model
CON-485-PE25 |
Data
SheetThe SerialComm CON-485-PE25 is a bi-directional port powered RS232 to RS485 converter in a 25-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to RS485 converter has a DB9 female connector on the RS232 side and a DB9 male connector RS485 side. 300 to 115.2K Baud Operation. Price: $65.95 $39.95
Model
ISO-485-PI9 |
Data
SheetThe SerialComm ISO-485-PI9 is a bi-directional opto-isolated port powered RS232 to RS485 converter in a 9-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port and vice versa while providing 2500V isolation. Since it is port powered it requires no external power or flow control. This converter features optical isolation circuitry, which effectively protect your devices from transient surges, ground loop, and remote lightning. The opto-isolated port powered RS232 to RS485 converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 3-way terminal block on the RS485 side. Separate terminal block is included in the package. 300 to 57.6K Baud Operation. Price: $89.95 $72.95
Model CON-485/422-PI9 |
Data
SheetThe SerialComm CON-495/422-PI9 is a bi-directional port powered RS232 to RS485 / RS422 converter in a 9-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port or four-wire RS422 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to RS485 / RS422 converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 5-way terminal block on the RS485 / RS422 side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $69.95 $49.95
Model
CON-485-422-EE9 |
Data
SheetThe SerialComm CON-485-422-EE9 is an industrial grade bi-directional externally powered opto-isolated RS232 to RS485 or RS422 converter in a 9-pin DB9 or RJ45 format. It can convert any standard serial RS232 port to any two-wire RS485 port or four-wire RS485 or RS422 port and vice versa while providing 2500V isolation up to 115.2K baud. The unit can extend data up to 6000ft (1.8km). The unit is externally powered so you do not have to worry about your RS232 device's ability to port power the converter. This converter features optical isolation circuitry, which effectively protects your devices from transient surges, ground loop, and remote lightning. The external powered, opto-isolated, RS232 to RS485/RS422 converter has a DB9 female connector on the RS232 side and either a DB9 male connector, RJ45 female connector or 5-way terminal block on the RS485/RS422 side. Separate power supply, extension cable and terminal block are included in the package. 0 to 115.2K Baud Operation. Price: $89.95 $54.95
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SERIAL RS232 TO RS422 CONVERTERS |
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Model CON-422-PE9 |
Data
SheetThe SerialComm CON-422-PE9 is a bi-directional port powered RS232 to RS422 converter in a 9-pin format. It can convert any standard serial RS232 port to any four-wire RS422 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to RS422 converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 5-way terminal block on the RS422 side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $54.95 $39.95
Model
CON-422-PE25 |
Data
SheetThe SerialComm CON-422-PE25 is a bi-directional port powered RS232 to RS422 converter in a 25-pin format. It can convert any standard serial RS232 port to any four-wire RS422 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to RS422 converter has a DB9 female connector on the RS232 side and a DB9 male connector RS422 side. 300 to 115.2K Baud Operation. Price: $65.95 $39.95
Model CON-485/422-PI9 |
Data
SheetThe SerialComm CON-495/422-PI9 is a bi-directional port powered RS232 to RS485 / RS422 converter in a 9-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port or four-wire RS422 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to RS485 / RS422 converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 5-way terminal block on the RS485 / RS422 side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $69.95 $49.95
Model
CON-485-422-EE9 |
Data
SheetThe SerialComm CON-485-422-EE9 is an industrial grade bi-directional externally powered opto-isolated RS232 to RS485 or RS422 converter in a 9-pin DB9 or RJ45 format. It can convert any standard serial RS232 port to any two-wire RS485 port or four-wire RS485 or RS422 port and vice versa while providing 2500V isolation up to 115.2K baud. The unit can extend data up to 6000ft (1.8km). The unit is externally powered so you do not have to worry about your RS232 device's ability to port power the converter. This converter features optical isolation circuitry, which effectively protects your devices from transient surges, ground loop, and remote lightning. The external powered, opto-isolated, RS232 to RS485/RS422 converter has a DB9 female connector on the RS232 side and either a DB9 male connector, RJ45 female connector or 5-way terminal block on the RS485/RS422 side. Separate power supply, extension cable and terminal block are included in the package. 0 to 115.2K Baud Operation. Price: $89.95 $54.95 |
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Our Quality GuaranteeWe back our high quality products with a 30 DAY Satisfaction Guarantee and a 5 year Manufacturer's Warranty. When you buy SerialComm products you are buying the best quality, and that is very important when interfacing with expensive equipment. SerialComm products are widely used by industry leaders.
Here are some of our valued customers, just to name a few:
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SERIAL RS232 AND RS485 TO TTL CONVERTERS |
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Model
TTL-232-5P |
Data
SheetThe SerialComm TTL-232-5P is a bi-directional port powered RS232 to 5V TTL converter in a 9-pin format. It can convert any standard serial RS232 port to any 5V TTL device and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to 5V TTL converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 5-way terminal block on the TTL side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $49.95 $37.95
Model TTL-232-33P |
Data
SheetThe SerialComm TTL-232-33P is a bi-directional port powered RS232 to 3.3V TTL converter in a 9-pin format. It can convert any standard serial RS232 port to any 3.3V TTL device and vice versa. Since it is port powered it requires no external power or flow control. The port powered RS232 to 3.3V TTL converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 5-way terminal block on the TTL side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $49.95 $37.95
Model TTL-485-2 |
Data
SheetThe Commfront TTL-485-2 is a bi-directional externally powered RS485 to 5V TTL converter in a 9-pin format. It can convert any standard two-wire RS485 port to any 5V TTL device and vice versa. Since it is port powered it requires no external power or flow control. The externally powered RS485 to 5V TTL converter has a DB9 male connector on the RS485 side or a 4-way terminal block and either a DB9 male connector or 3-way terminal block on the TTL side. Separate terminal blocks are included in the package. The unit is powered from an external 5V power supply. 5V power supply is included with purchase. 300 to 115.2K Baud Operation. Price: $59.95 $44.95 |
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OPTO-ISOLATED CONVERTERS & SURGE SUPPRESSORS |
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Model
ISO-232-3P9 |
Data
SheetThe SerialComm ISO-232-3P9 is a bi-directional 3-wire (TX, RX, GND) opto-isolated port powered RS232 isolator in a 9-pin format. It can provide signal 5000V isolation to any standard serial RS232 port. Since it is port powered it requires no external power or flow control. This converter features optical isolation circuitry, which effectively protect your devices from transient surges, ground loop, and remote lightning. The 3-wire opto-isolated port powered RS232 isolator has a DB9 female connector on one RS232 side and a DB9 male connector on the other RS232 side. 300 to 57.6K Baud Operation. Price: $59.95 $45.95
Model CVT-232B-3 |
Data
SheetThe Commfront CVT-232B-3 is a bi-directional 7-wire (TX, RX, CTS, RTS, DTR, DSR, GND) opto-isolated port powered RS232 isolator in a 9-pin format. It can provide signal 2500V isolation to any standard serial RS232 port. Since it is port powered it requires no external power or flow control. This converter features optical isolation circuitry, which effectively protect your devices from transient surges, ground loop, and remote lightning. The 3-wire opto-isolated port powered RS232 isolator has a DB9 female connector on one RS232 side and a DB9 male connector on the other RS232 side. 300 to 19.2K Baud Operation. Price: $79.95 $55.95
Model
ISO-485_PI9 |
Data
SheetThe SerialComm ISO-485-PI9 is a bi-directional opto-isolated port powered RS232 to RS485 converter in a 9-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port and vice versa while providing 2500V isolation. Since it is port powered it requires no external power or flow control. This converter features optical isolation circuitry, which effectively protect your devices from transient surges, ground loop, and remote lightning. The opto-isolated port powered RS232 to RS485 converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 3-way terminal block on the RS485 side. Separate terminal block is included in the package. 300 to 57.6K Baud Operation. Price: $89.95 $72.95
Model CVT-485_422-3 |
Data
SheetThe Commfront CVT-485_422-3 is a bi-directional opto-isolated port powered RS232 to RS485 / RS422 converter in a 9-pin format. It can convert any standard serial RS232 port to any two-wire RS485 port or four-wire RS422 port and vice versa while providing 2000V isolation. Since it is port powered it requires no external power or flow control. This converter features optical isolation circuitry, which effectively protect your devices from transient surges, ground loop, and remote lightning. The opto-isolated port powered RS232 to RS485 / RS422 converter has a DB9 female connector on the RS232 side and either a DB9 male connector or 6-way terminal block on the RS485 / RS422 side. Separate terminal block is included in the package. 300 to 57.6K Baud Operation. Price: $89.95 $74.95
Model
CON-485-422-EE9 |
Data
SheetThe SerialComm CON-485-422-EE9 is an industrial grade bi-directional externally powered opto-isolated RS232 to RS485 or RS422 converter in a 9-pin DB9 or RJ45 format. It can convert any standard serial RS232 port to any two-wire RS485 port or four-wire RS485 or RS422 port and vice versa while providing 2500V isolation up to 115.2K baud. The unit can extend data up to 6000ft (1.8km). The unit is externally powered so you do not have to worry about your RS232 device's ability to port power the converter. This converter features optical isolation circuitry, which effectively protects your devices from transient surges, ground loop, and remote lightning. The external powered, opto-isolated, RS232 to RS485/RS422 converter has a DB9 female connector on the RS232 side and either a DB9 male connector, RJ45 female connector or 5-way terminal block on the RS485/RS422 side. Separate power supply, extension cable and terminal block are included in the package. 0 to 115.2K Baud Operation. Price: $89.95 $54.95
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SERIAL DATA REPEATERS |
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Model REP-232-3P |
Data
SheetThe SerialComm REP-232-3P is a pair of bi-directional port powered RS232 data line extenders in a 9-pin format. It can extend the distance of any standard serial RS232 port up to 4000 feet (1.2km). Since it is port powered it requires no external power or flow control. The port powered RS232 repeater has a DB9 female connector on the RS232 side and either a DB9 male connector or 5-way terminal block on the wire side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $75.95 $64.95
Model RPT-485_422-2 |
Data
SheetThe Commfront RPT-485_422-2 is a bi-directional externally powered RS485 to RS422 converter in a 9-pin format. It can convert any standard serial two-wire RS485 port to any four-wire RS422 port and vice versa. It can also be used as a RS485 Repeater or RS422 Repeater. Since it is port powered it requires no external power or flow control. The port powered RS485 to RS422 converter / repeater has a DB9 male connector or 5-way terminal block on one side and either a DB9 male connector or 5-way terminal block on the other side. Separate terminal blocks are included in the package. The unit is powered from an external 5V power supply. 5V power supply is included with purchase. 300 to 115.2K Baud Operation. Price: $79.95 $64.95 |
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USB TO SERIAL ADAPTERS |
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Model
USB-232-2 |
Data
Sheet
(Windows 7 Compatible)The SerialComm USB-232-2 is a bi-directional port powered USB to RS232 adapter in a 9-pin format. It can convert any standard USB port to any serial RS232 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered USB to RS232 adapter has a USB female connector on the USB side and a DB9 male connector on the RS232 side. 300 to 460.8K Baud Operation. Price: $29.95 $24.95
Model
USB-485B |
Data
SheetThe SerialComm USB-485B is a bi-directional port powered USB to RS485 adapter in a 9-pin format. It can convert any standard USB port to any two-wire RS485 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered USB to RS485 adapter has a USB female connector on the USB side and a DB9 male connector or 3-way terminal block on the RS485 side. Separate terminal block is included in the package. 300 to 1 Mbps Baud Operation. Price: $54.95 $44.95
Model
USB-485C |
Data
SheetThe SerialComm USB-485C is a bi-directional port powered USB to RS485 / RS422 adapter in a 9-pin format. It can convert any standard USB port to any two-wire RS485 port or four-wire RS422 port and vice versa. Since it is port powered it requires no external power or flow control. The port powered USB to RS485 / RS422 adapter has a USB female connector on the USB side and a DB9 male connector or 5-way terminal block on the RS485/RS422 side. Separate terminal block is included in the package. 300 to 1 Mbps Baud Operation. Price: $59.95 $49.95
Model
USB-TTL-5 |
Data
SheetsThe SerialComm USB-TTL-5 is a bi-directional port powered USB to 5V TTL Converter in a 9-pin format. It is a combination of the SerialComm USB-232-2 and TTL-232-5P Converters. The combination can convert any standard USB port to 5V TTL port and vice versa. Since it is port powered it requires no external power or flow control. The port powered USB to TTL converter has a USB female connector on the USB side and a DB9 male connector or 5-way terminal block on the TTL Side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $75.95 $59.95
Model
USB-TTL-33 |
Data
SheetsThe SerialComm USB-TTL-33 is a bi-directional port powered USB to 3.3V TTL Converter in a 9-pin format. It is a combination of the SerialComm USB-232-2 and TTL-232-33P Converters. The combination can convert any standard USB port to 3.3V TTL port and vice versa. Since it is port powered it requires no external power or flow control. The port powered USB to 3.3V TTL converter has a USB female connector on the USB side and a DB9 male connector or 5-way terminal block on the TTL Side. Separate terminal block is included in the package. 300 to 115.2K Baud Operation. Price: $75.95 $59.95 |
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FIBER OPTIC MEDIA CONVERTERS |
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Model 232-FIBER-SM |
Data
SheetModel 232-FIBER-MM |
Data
SheetThe SerialComm 232-FIBER-SM (Single Mode) or 232-FIBER-MM (Multi-Mode) are bi-directional externally powered Serial RS232 to Fiber Optic Converters. Both the SM and MM converters come with either ST or SC Connectors. The serial to fiber optic converter (fiber optic modem) supports asynchronous serial RS232 communications through fiber optic links. 300 To 120K Baud Operation.
Model
SER-FIBER-SM |
Data
SheetModel
SER-FIBER-MM |
Data
SheetThe SerialComm SER-FIBER-SM (Single Mode) or SER-FIBER-MM (Multi-Mode) are bi-directional externally powered Serial RS232 / RS485 / RS422 to Fiber Optic Converters. Both the SM and MM converters come with either ST or SC Connectors. The multi-functional serial to fiber optic converter (fiber optic modem) supports asynchronous serial communications (RS232, RS485, and RS422) through fiber optic links. 300 To 460K Baud Operation.
Model
ETH-FIBER-SM |
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ETH-FIBER-MM |
Data
SheetThe SerialComm ETH-FIBER-SM (Single Mode) or ETH-FIBER-MM (Multi-Mode) are bi-directional externally powered 10/100M Ethernet to Fiber Optic Converters. Both the SM and MM converters come with either ST or SC Connectors. The multi-functional Ethernet to fiber optic converter (fiber optic modem) supports data communication between 10/100BaseTX and 100BaseFX fiber optic links. 10Mbps To 200Mbps Baud Operation.
ETH-FIBER-SM-2 |
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ETH-FIBER-MM-2 |
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SheetThe SerialComm ETH-FIBER-SM-2 (Single Mode) or ETH-FIBER-MM-2 (Multi-Mode) are bi-directional externally powered 10/100/1000M Ethernet to Fiber Optic Converters. Both the SM and MM converters come with either ST or SC Connectors. The multi-functional Ethernet to fiber optic converter (fiber optic modem) supports data communication between 10/100/1000BaseTX and 1000Base-SX/LX fiber optic links. 10Mbps To 2000Mbps Baud Operation.
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