Top 10 RS232 to RS485 Converter – Serial Adapters

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1. DTech

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DTECH RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge

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DTech #ad - Automatic rx - tx control; rs-232 to rs-485 converter controls the “Receive” and “Transmit” modes automatically. Enables the connections of multiple bus nodes and 32 devices can be joined in RS-485 network.

A built-in transient voltage suppressor TVS supports 600W anti-surge protection on each line of RS485 link which effectively guard devices from damage. Commercial grade bi-direction rs232 to rs485 Converter used in Industrial Long-haul Communication up to 4000ft 1200 meters. Up to 115. 2kbps baud rate auto-detect can be applied to point to point two wire half duplex and point to multi-point two wire half duplex communication.
BrandDTech #ad
ManufacturerGuangzhou DTECH Electronics Technology Co.,Ltd #ad
Height0.28 Inches
Length1.38 Inches
Weight0.07 Pounds
Width0.51 Inches
Part NumberADT-9000
ModelADT-9000

2. DTech

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DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size

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DTech #ad - Supports a maximum connection distance of 4000ft 1200m. Supports baud rates up to 115. 2 kbps; automatic sense serial signal rate. Best solution for the communication between serial port and RS485 or RS422 device. It easily lets you connect any RS485 or RS422 device directly to COM port. Pro grade rs232 to rs485 / rs422 converter. No need serial port initialization. Unique serial charge pump drive technology, no external power supply, the real three-wire communication TXD, RXD, GND.
BrandDTech #ad
ManufacturerGuangzhou DTECH Electronics Technology Co.,Ltd #ad
Height4.2 Inches
Length6.4 Inches
Width2.2 Inches
Part Number8541672854
Model8541672854

3. DTech

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DTech Active Isolated RS232 to RS485 RS422 Converter with RJ45 Serial Port Terminal Board Power Adapter DB9 Cable Optical Isolation Protection 2.5kV

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DTech #ad - Rack-mounted optocoupler with built-in repeater to amplify signals; with automatic baud rate sensing 300bps to 115200 bps; well housed in metal case ensures rapid heat dissipation. Bi-directional rs485 to rs232 isolator box supports 4 kinds of data communication: point-to-point/point-to-multilpoint 4-wire full duplex; point-to-point/point-to-multilpoint 2-wire half duplex.

Provides power supply isolation optical isolation voltage 2500vrms 500DC continuity; RS-232 interface - 15kV ESD protection; RS485/422 end with each line of 600W lightning surge protection.

Industrial grade isolated rs232 to rs485 converter for high speed data communication between DB9 serial COM port and RS-485/422 device wired via RJ45 socket or 6 position terminal board. Port-powered or by dc 9v-24v power adapter; LED indicators for troubleshooting - easy check in the status of power connection and balanced differential signal status.
BrandDTech #ad
ManufacturerGuangzhou DTECH Electronics Technology Co.,Ltd #ad
Height2.2 Inches
Length6.5 Inches
Weight0.35 Pounds
Width4.2 Inches
Part NumberDT-9026

4. DTech

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DTech RS232 to RS485 Converter Serial Communication Data Adapter with TX RX LED Indicators and Terminal Board

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DTech #ad - The baud rate will be detected and adjusted automatically, up to 115200 bps; It’s port powered from RS-232 signal, no external power required. The passive bi-directional rs232 to rs485 converter supports reliable signal transmission over long distance: up to 4000ft over RS-485 link at a high speed.

Tx and rx indicators enables you to easily know the status of sending or receiving data respectively. 600w double lightning surge protection and 15KV static protection protects your value devices against high voltage spikes created by either by static electricity or by surges in the supply voltage. Supports 2 wire half duplex communication, point to point and point to multi-point network up to 32 RS-485 devices.
BrandDTech #ad
ManufacturerGuangzhou DTECH Electronics Technology Co.,Ltd #ad
Height0.7 Inches
Length2.5 Inches
Weight0.08 Pounds
Width1.3 Inches
Part NumberDT-9004
ModelDT-9004

5. DTech

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DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 10 8 7 XP Mac -1.5 Feet

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DTech #ad - Ideal for industrial environment -provides 600w surge protection and 15KV ESD isolated protection on signal pins to protect costly and often sensitive control equipment against electrical damage.

There are no irq and com port conflicts, dma, since the port do not require any additional IRQ, memory as resources on the system; RS485 for Half duplex and RS422 for Full duplex communication. With high performance quality processor chip ftdi-chipset FT232 and I/O auto conversion circuitry which makes RS 485 to USB convertor one of the most reliable dongle on the market. 1. 5 ft serial rs-422 rs-485 to usb adapter cable supports windows 10 8 7, Mac and more; plug-and-play, No power supply needed. Usb to rs485/rs422 converter it easily lets you connect RS485 or RS422 device directly to your Laptop PC computer USB port.
BrandDTech #ad
ManufacturerGuangzhou DTECH Electronics Technology Co.,Ltd #ad
Height2.01 Inches
Length8.07 Inches
Weight0.11 Pounds
Width3.94 Inches
Part NumberDT-5119
Model8541673006

6. waveshare

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Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments

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waveshare #ad - Onboard unibody power supply isolation provides stable isolated voltage needs no extra power supply for the isolated terminal. What's more the usb to rs232/485/ttl comes with an aluminium alloy enclosure make it solid and durable to work.

Fully automatic transceiver circuit with no delay ensures the USB port communicates with different interfaces fastly and stably without interfering each other. This is an industrial usb to rs232/485/ttl isolated converter with original ft232rl inside. The usb to rs232/485/ttl is very easy to use fully automatic transceiving without delay.

It features embedded protection circuits such as power isolation ADI magnetical isolation and TVS diode etc. High quality usb-b and RS232 connectors smoothly plug/pull. Due to its fast communication stability reliability and safety it is an ideal choice for industrial control equipments and/or applications with high communication requirement.
Brandwaveshare #ad
ManufacturerWaveshare #ad
Weight0.44 Pounds
Part NumberUSB TO RS232/485/TTL
ModelUSB TO RS232/485/TTL

7. DTech

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DTECH Industrial Grade RS232 to RS485 Converter Adapter Optical Isolation Protector with TX RX LED Lights for Long Haul Serial Communication

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DTech #ad - It’s port powered from RS-232 signal, no external power required. 600w double lightning surge protection and 15KV static protection protects your value devices against high voltage spikes created by either by static electricity or by surges in the supply voltage.

Mini size isolated rs232 to rs485 converter with 2. 5kvrms /500vdc photoelectric isolation voltage helps you get the precise data and prevent your valued devices from damage. Rs 232 to 485 opto isolator serial adapter supports 2 wire half duplex communication, point to point and point to multi-point network up to 32 drops RS-485 protocol devices. Industrial grade conversion adapter with TX and RX indicators enables you to easily know the status of sending or receiving data respectively. The baud rate will be detected and adjusted automatically, up to 115200 bps.
BrandDTech #ad
ManufacturerGuangzhou DTECH Electronics Technology Co.,Ltd #ad
Height0.7 Inches
Length2.5 Inches
Weight0.08 Pounds
Width1.3 Inches
Part NumberDT-9015
ModelDT-9015

8. DSD TECH

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DSD TECH SH-B12 Serial RS232 to RS485 Converter with DB9 Interface

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DSD TECH #ad - Two rs232 signal connections: DB9 interface and terminal block interface. Meet the needs of different occasions. You can switch by jumper.

Built-in 400w surge and 15kv static protection. With a built-in 120 ohm jumper, you can choose to enable a 120 ohm resistor in the RS485 network. The package includes a USB power cable. You can power it with any USB interface charger. If you have any questions, please contact us and we will resolve your issue within 24 hours. The sh-b12 supports rs485 to rs232 serial conversion. Dsd tech offers a 24-month warranty on this rs232 to rs485 Converter. This converter is compatible with both computers and terminals/devices.
BrandDSD TECH #ad
ManufacturerDSD TECH #ad
Height0.8 Inches
Length4 Inches
Width4 Inches
Part NumberSH-B12
ModelSH-B12

9. DSD TECH

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8, DSD TECH SH-U11 USB to RS485 RS422 Converter with FTDI FT232 Chip Compatible with Windows 10, 7, XP and Mac OS X

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DSD TECH #ad - Warranty:we back this usb to rs422/rs485 converter with 12 months warranty. If you meet any question, Please contact us, We will fix your issue within 24 hours. Built-in 15kv esd protection and TVS overvoltage protection. It easily lets you connect any RS485 or RS422 device directly to your computer's USB port. Works with windows 10, xp, 732/64bit vista 2008, 2003, Mac Etc. Industrial grade usb to rs485 rs422 converter. The main chip is ftdi ft232rl. Led for rx tx and Power. Enough for you to deal with different occasions.
BrandDSD TECH #ad
ManufacturerDSD TECH #ad
Height0.55 Inches
Length2.2 Inches
Width1 Inches
Part NumberSH-U11
ModelSH-U11

10. SMAKN

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SMAKN RS232 to RS485 Db 9 Pin Interface Converter Transmitter

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SMAKN #ad - Product name: rs232 to RS485 Converter. Net weight: 35g. Size: 8. 7 x 3. 3 x 1. 6cm / 3. 4" x 1. 3" x 06"l*w*t. Material: plastic & Metal; Color: Black & Green. Package content: 1 x rs232 to RS485 Converter.
BrandSMAKN #ad
ManufacturerSMAKN #ad
Weight0 Pounds
Part Number4335208590
Model8541683146