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Serial Converters

Serial Converters

Extend Range and Utility of RS-232 with Serial Converters

RS-232 transmission distance is limited by cable capacitance. Distances greater than 50' (15.2m) will reduce signal strength, leading to corrupt data and possibly complete signal loss. This makes it unsuitable for reliable long distance communication. The low-cost solution is to convert RS-232 signals to an alternative format. RS-422 and RS-485 can handle 4,000' (1,200m). Fiber optic signals can be sent over much greater distances.

The declining availability of RS-232 ports on computing equipment is another reason for signal conversion. Converting RS-232 serial signals to USB lets a single PC receive connections from one or more serial devices. In some situations, electrical noise will disrupt serial signals and possibly damage sensitive equipment. The solution is an RS-232 repeater providing surge protection.

 

Typical Applications

Serial communication is built into equipment found in many different sectors. It's used in building access control and also in Intelligent Transportation Systems (ITS). In industrial sites, it's used for data acquisition, process control and automation.

Users like sending data to a central location, often for logging on a PC or for decision-making. Lots of older equipment was built with only RS-232 outputs, so long distance transmission requires conversion and possibly reconversion at the receiving end. It's not uncommon to have an RS-232 source converted into RS-422 or fiber optic signals for long distance transmission. Then at the receiving end, it's converted back into RS-232 and finally to USB so multiple devices can communicate with a single PC.

Product Range

Westward has converters for serial (RS-232/422/485) to fiber, serial (RS-232) to serial (RS-422/485) and serial (RS-232 or RS-422/485) to USB. Manufactured by Antaira Technologies, these are all warrantied for 5 years.

Serial-to-Fiber Converters

Resistant to EMI, fiber can send signals many miles. The Antaira STF-300C-CM02 is an inexpensive means of converting RS-232/422/485 signals for fiber transmission. For a more robust solution, consider the STF-401C compact industrial serial-to-fiber media converter. DIN-rail mountable, it's a good solution for ITS, process control and industrial automation. Where isolation is required the STF-501C and STF-502C provide superior equipment protection.

Serial-to-Serial Converters

Converting the output from RS-232 to RS-422 or RS-485 increases the maximum transmission distance significantly. The STS-1915S performs this conversion and can work as either a client or server, providing RS-422/485 serial communication through the standard RS-232 port.

Serial-to-USB Converters

These let a PC or laptop with no serial port send and receive data. At their simplest, they comprise a cable with a male USB connector at one end and a block incorporating a DB9 connector and conversion electronics at the other. The UTS-1110A handles RS-232 to USB conversion while the UTS-1458B does the same for RS-422/485. When isolation is needed, the UTS-1461A-SI and UTS-401BK-SI perform the same one-to-one conversion but with additional protection.

Similar converters are available for when it's useful to put multiple RS-232 cables into a single USB port. The UTS-402CK has two male DB9 connectors, the UTS-404A has four, UTS-408A has eight and the UTS-416AK accepts 16 RS-232 inputs.

Whether you need an industrial serial or USB conversion, Westward Sales is ready to configure a communication solution that works. Contact us today. We promise a quick and informed response from our team.

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Antaira SED-1010S Industrial High-Speed RS-232 over CAT-5 Extender, 1.2 km Distance with Surge ..
$120.00
Antaira STE-501C RS-232/422/485 Serial to Fast Ethernet ConverterThe STE-501C is a gateway betwe..
$100.00
Antaira STE-502C 2-Port RS-232/422/485 Serial to Ethernet GatewayThe STE-502C from Antaira Techn..
$157.00
Antaira STE-601C 1-Port Industrial RS-232/422/485 To Ethernet Device ServerThe Industrial Serial..
$167.00
Antaira STE-6104C-T Industrial 4-port RS-232/422/485 to 2-port Fast Ethernet Device ServerThe ST..
$503.00
Antaira STF-300C RS-232/422/485 to Fiber Media Converter, Multi or Single-Mode or WDMThe STF-300..
$167.00
Antaira STF-401C RS-232/422/485 to Fiber Industrial Media Converter, Multi or Single-Mode, SC or ST ..
$262.00
Antaira STF-501C Industrial RS-232/422/485 to Fiber Converter, 2.5KV Isolation, Multi or Single-Mode..
$346.00
Antaira STF-502C Media Converter, RS-232/422/485 to 2 Fiber Ports, 2.5KV Isolation, Multi or Single-..
$482.00
Antaira STM-501C 1-Port Modbus TCP to Serial RTU/ASCII GatewayThe STM-501C, MODBUS gateway allow..
$184.00
Antaira STM-601C Modbus TCP to Serial Industrial RTU/ASCII Gateway with 2 Ethernet Ports and 1 ..
$260.00
Antaira STM-602C Modbus TCP to Serial RTU/ASCII Gateway with Dual Ethernet and Serial ports, Cl..
$330.00
Antaira STM-604C Modbus TCP to Serial RTU/ASCII Gateway with 2 Ethernet and 4 Serial Ports..
$499.00
RS-232 to RS-422 / RS-485 Converter with Surge Protection, Port Powered (External Power Adapter Opti..
$52.00
The STS-1920SI - RS-232 to RS-232 Repeater with Surge and Isolation ProtectionVoltage spikes and..
$84.00
Antaira STW-601C Industrial Single Port RS-232/422/485 Serial to Wi-Fi GatewayThe STW-..
$159.00
Antaira STW-602C Industrial 2-Port RS-232/422/485 Serial to Wi-Fi GatewayThe STW-..
$237.00
Antaira UTS-401BK-SI Industrial RS-422 / RS-485 to USB Converter with Surge & Isolation Pro..
$157.00
Use the DIN-Rail kit to secure the DIN-RAIL to an equipment enclosure or control cabinet.  The ..
$5.00
CB-RJ45-DB9F-90 RJ45 to DB9 Female Serial Cable, 90 cmThe CB-RJ45-DB9F-90 is a serial ..
$13.00
Antaira UTS-402CK Industrial 2-Port RS-232/422/485 to USB 2.0 High-Speed Converter, Optional Isolati..
$136.00
CB-RJ45-DB9M RJ45 to DB9 Male Serial Cable, 30/90 cmThe CB-RJ45-DB9M is a serial strai..
$11.00
Antaira UTS-404A Industrial 4-Port RS-232 to USB Converter, Optional Isolation and Locking Conn..
$136.00
The AD-DB9F-TB5P35 is an RS-422 or RS-485 adapter that converts a DB-9 female connector to a 5-pin 3..
$16.00
Antaira UTS-408A Industrial 8-Port RS-232 to USB Converter with Optional Isolation and Locking Conne..
$241.00
The AD-DB9F-TB5P38 is an RS-422/485 adapter that converts a DB9 female connector to a 5-pin 3.8 mm t..
$16.00
Antaira UTS-1110A RS-232 to USB Converter with TX / RX LED Indicators and 2.6-foot (80 cm) CordT..
$31.00
Antaira UTS-416AK Industrial 16-Port RS-232 to USB 2.0 High Speed Converter with Locking Connectors ..
$419.00
Antaira UTS-1458A RS-422 / RS-485 to USB Converter with 6-foot (1.8 m) CordMulti-drop RS-422 / R..
$62.00
Antaira UTS-1458A-SI RS-232 to USB Converter with 8-foot (2.5 m) Cord and Surge ProtectionRS-232..
$94.00
The ADP-RJ45DB9F-C is an RJ45 to DB9 male cable adapter with crossover pinouts. One pack of fou..
$32.00
The ADP-RJ45DB9F-S is an RJ45 to DB9 female cable adapter.  Straight-through pinouts. Pack..
$32.00
The ADP-RJ45DB9M-S is an RJ45 to DB9 male cable adapter.  Straight-through pinouts. Pack o..
$32.00
GC-F09F09-N Miniature Null Modem Gender Changer with Dual DB-9 Female ConnectorsA Null Mode..
$6.00
The compact GC-F09F09-S with female DB-9 connectors on both sides will connect two cables with m..
$5.00
GC-F09M09-N Miniature Null Modem Gender Changer with Male and Female DB-9 Connectors..
$6.00
GC-M09M09-N Miniature Null Modem Gender Changer with Dual DB-9 Male ConnectorsA Null Modem ..
$6.00
The Parani-FM9GD from SENA technologies is a miniature gender changer that converts a 9-pin female D..
$4.00
PA-STE502-US Power Adapter For the STE-502CRecommended AC/DC power adapter for the STE-502C..
$16.00
Antaira Technologies PA-STS-US AC/DC Power Adapter for the STS Family of Serial-to-Serial Devices ..
$13.00
15W AC/DC Power Adapter to Power STE Devices, LNX Switches and IMP Media Converters, 12V OutputU..
$16.00
Use the DIN-RACK-2U adapter to secure DIN rail mountable electronics into a standard 19" rack mount ..
$73.00
Manufactured from sturdy zinc-plated steel, the DIN-RAIL track fits into all standard DIN rail compa..
$6.00
Serial, Converters, Connectivity