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The Best Rs 232 To Rs 485 Converter of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Rs 232 To Rs 485 Converter of 2023. Check our ranking below.

2,749 Reviews Scanned

Rank No. #1

DTech Bi-Directional Active RS232 to RS485 RS422 Serial Converter with Surge Protection 600W 15KV ESD DB9 to RJ45 Phoenix Contacts Adapter Power Supply TX RX LEDs for Long Haul Data Communication

Bidirectional RS232 to RS485 RS422 converter converts RS-232 signals to RS-485 or RS-422 signal, cable can be connected to either a terminal block or an RJ45 network port
600W lightning surge protected for RS485/RS422 link and 15KV static protection for RS232 link, protects your value devices against high voltage
Powered serial adapter with TX, RX and power indicators enables you to easily know the status of sending or receiving data respectively (110/240V AC to 9V DC power supply included)
Serial converter supports RS-485 2 wire half duplex and RS-422 4 wire full duplex communication, point to point and point to multi-point network (up to 32 drops protocol devices); no need of handshake signal, data transparent transmission
RS 232 to 485 converter with built-in data collision protection control for reliable serial Data Communication; The baud rate will be detected and adjusted automatically, up to 115200 bps

Rank No. #2

DTech RS232 to RS485 RS422 Converter, 2 Pack Bi-Directional RS-485 to RS-232 Serial Adapter with Terminal Block for Long Haul Data Communication

Commercial Grade Bi-directional RS-232 to RS-485 RS-422 converter is used in industrial long-haul communication up to 4000ft (1200 meters)
Port powered serial RS 232 to 485 422 adapter enables the connections of multiple bus nodes and 32 devices can be joined in RS485 network
Automatic RX - TX Control RS232 serial adapter; RS232 to 485 converter controls the “Receive” and “Transmit” modes automatically; no external power supply
Up to 115.2kbps baud rate (auto-detect); supports 2 wire RS485 link connection and 4 wire RS422 link connection
Mini RS422 RS485 to RS232 adaptor features a built-in Transient Voltage Suppressor (TVS) that supports 600W anti-surge protection on each line of RS485 link which effectively guard devices from damage

Rank No. #3

RS485 Converter Adapter, RS-232 to 485/422 Converter Adapter Cascadable 16-32 Devices Converter for Attendance Machines, Compatible with RS-232, RS-485, RS-422 Standards

【Easy To Use】The RS485 passive interface converter has a built-in voltage clamp protection circuit, which has the ability to resist surges, and the product is small and light, easy to carry and easy to use.
【No Jumper Design】Compared with similar passive products, the USB computer network adapter can be used as an RS-232 to RS-485 converter, Rs232 to RS-422 converter, no jumper switch is needed, just connect to the corresponding network connection method. , Which can work adaptively.
【Compatible With RS-232, RS-485, RS-422】The RS485 converter adapter is compatible with RS-232, RS-485 and RS-422 standards. It can convert a single-ended RS-232 signal into a balanced RS-485 or RS-422 differential signal.
【Wide Range Of Applications】RS-232 to 485/422 converters are widely used in attendance machines, IC card toll systems, industrial automation control systems, access card control systems, parking lot systems, automatic banking systems, bus toll systems, canteens for sale, highway toll gate systems Wait.
【Quality Service】If you have any questions about this product, you can contact us at any time. We have a professional customer service team that will provide you with the best service.

Rank No. #4

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

Commercial Grade Bi-Direction RS232 to RS485 Converter used in Industrial Long-haul Communication up to 4000ft (1200 meters)
Mini RS 232 to 485 serial adapter enables the connections of multiple bus nodes and 32 devices can be joined in RS-485 network
Automatic RX - TX Control; RS-232 to RS-485 Converter controls the “Receive” and “Transmit” modes automatically
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
A built-in Transient Voltage Suppressor (TVS) supports 600W anti-surge protection on each line of RS485 link which effectively guard devices from damage

SaleRank No. #5

Port Powered RS-232 to RS-485 Converter

The 485SD9R is a port-powered two-channel RS-232 to RS-485 converter. It converts TD and RD RS-232 lines to balanced half-duplex RS-485 signals. The unit is powered from the RS-232 data and handshake lines whether the lines are high or low.
RS-232 Side:Connector: DB-9 femaleSignals: Passes through pins 3 (TD) and 2 (RD)Pins 7 (RTS) and 8 (CTS) are tied togetherPins 4 (DTR), 6 (DSR), and 1 (CD) are tied together
RS-485 Side:Connector: DB-9 femaleSignals: 2 wire, half-duplex operation onlyAutomatic control circuit enables driver only when transmittingReceiver is disabled when transmitting to prevent echo back to RS-232 device
Data Rates: Up to 115.2 k baudDistance: Depending on power from port; will transmit up to 4000 feet at 19,200 baudDimensions: 2.50 x 1.30 x .80 in
Power Requirements: No external power is required if two RS-232 output handshake lines are available. If the handshake lines are raised and no termination is used, the power efficiency is greatly increased.

SaleRank No. #6

StarTech.com Industrial RS232 to RS422/485 Serial Port Converter w/ 15KV ESD Protection - RS232 to RS 422 RS485 Converter Adapter (IC232485S)

Serial adapter
RS-232
RS-422/485 x 1
black

Rank No. #7

DTech RS232 to RS485 Converter, 2 Pack Bidirectional RS-485 to RS-232 Serial Adapter with Terminal Block for Industrial Long Haul Data Communication

Pack of 2 DT-9000: Commercial Grade Bi-directional RS-232 to RS-485 converter is used in industrial long-haul communication up to 4000ft (1200 meters)
Port powered serial RS 232 to 485 adapter enables the connections of multiple bus nodes and 32 devices can be joined in RS485 network
Automatic RX - TX Control; RS232 to 485 converter controls the “Receive” and “Transmit” modes automatically
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 data communication
Mini RS485 to RS232 adaptor features a built-in Transient Voltage Suppressor (TVS) that supports 600W anti-surge protection on each line of RS485 link which effectively guard devices from damage

Rank No. #8

Advantech BB-485SD9R, Port-Powered RS-232 to DB-9 RS-485 Converter

Extend RS-232 data signals up to 1.2 km
Change RS-232 TD and RD to RS-485 signals
Automatic Send Data Control - no software drivers required
Baud rate: up to 115.2 kbps
Powered from RS-232 handshake lines - no power supply required

Rank No. #9

Black Box Universal RS-232 to RS-422/485 Converter - 1 x DB-9 RS-232, 1 x Terminal Block - External

Total Number of Ports: 2
Form Factor: External
Height: 1.7"
Width: 0.9"
Depth: 3.9"

Rank No. #10

ATEN RS-232 to RS-485/RS-422 Reversible Converter IC485S (Off White)

Data Transmission Controlled by the RTS Signal; DCE/DTE Selectable
Point to Point, Multidrop and Simplex/Duplex Link Selectable
Four Wire Full Duplex / Two Wire Half Duplex
Monitor Configuration Support
Compact Size

Rank No. #11

Black Box Rs-232 to Rs-485 Interface Converter

UPC: 822088078302
Weight: 0.340 lbs

Rank No. #12

Zopsc RS-232 to 485/422 Adapter Converter Adapter Cascadable 16-32 Devices Converter for Attendance Machines

RS485 passive interface converter, equipped with voltage clamp protection circuit, with anti-surge capability.
Compared with similar passive products, this product can be used as RS-232 to RS-485 converter, Rs232 to RS-422 converter, and no jumper switching, just connect to the corresponding network connection mode, ie Can work adaptively.
The product is compatible with RS-232, RS-485, and RS-422 standards. Ability to convert single-ended RS-232 signals to balanced RS-485 or RS-422 differential signals.
Widely used in attendance machines, IC card charge systems, industrial automation control systems, access card control systems, parking systems, automated banking systems, bus toll collection systems, canteens for sale, highway toll station systems, etc.
This product is compact and lightweight, easy to carry and easy to use.

Rank No. #13

DTech Industrial Grade RS232 to RS485 Serial Converter 3 Channel RS-485 Expansion Hub with 600W Surge Protection TX RX LEDs Power Adapter Terminal Block

Powered RS232 to RS485 converter converts RS-232 signals to 2 wire half-duplex RS-485 signal, to extend RS232 signal distance, also expands RS485 networks ( up to 3 way)
Compact RS 232 to 485 adapter is designed with 600W lightning surge protection over RS485 link and 15KV ESD over RS232 link, to protect your value devices against high voltage
Serial adapter with TX, RX and power indicators enables you to easily know the status of sending/receiving data respectively; 9V-30V DC power input is supported (DC 9V power adapter is included)
RS485 hub features built-in data collision protection control for reliable serial Data Communication; The baud rate will be detected and adjusted automatically, 300-115200 bps
Wall mountable bi-directional RS232 to RS485 splitter hub provides a quick, simple, and cost-effective solution for various serial data communication and automation applications

Rank No. #14

YACSEJAO USB to RS485 RS232 Converter USB 2.0 to RS-485 RS-232 Serial Port Adapter with CH340 Chip for Windows 11 10 8 7 XP Mac OS

[USB to RS485 Converter CH340 Chip] USB RS485 RS232 industrial grade 2-in-1 converter extends to RS-232/485 interface via USB. Using CH340 series chip, using CH340 driver, USB and 485 signals can be sent and received in half-duplex mode, data can be transferred in both directions.
[Transmission Stability] Built-in TVS protection circuit, electrostatic ESD protection, surge protection, AB signal line short circuit and power short circuit protection, protect your equipment from voltage spikes and surges, reliable and stable performance, ensure consistent data transmission and reception, making it more suitable for industrial applications.
[Compact & Portable] Small in size and light in weight, this USB to RS-485/RS-232 converter can easily fit in your pocket or bag, making it perfect for use on the go.
[Easy to Use] Simply plug in the USB to RS485 adapter and it will be automatically recognized by your operating system, making it easy to set up and use your device.
[Wide Compatibility] Industrial grade USB to RS485 RS232 converter. Suitable for Windows 2000, XP, Vista operating systems, ensuring compatibility with a wide range of devices. Widely used for PLCs, printers, POS systems and industrial control equipment.

Rank No. #15

LFHUKEJI RS232 to RS485, RS-232 Female to RS-485/RS-422 485/422 Female Adapter Converter(Passive)

1 pack,Lightning and surge protection, industrial converter, built-in TVS protection
Working Mode : Asynchronous, Half-duplex, Differential Transmission;Transmission
Media : Twisted Pair or Shielded Twisted Pair.Communication distance: 3937Ft(RS-485 terminal), 16.4Ft(RS-232 terminal).
Compatibility: EIA/TIA RS232C standard and RS485/RS422 standard
Interface RS232 side: DB9 female connector;Interface RS485/RS422 side: DB9 male connector with optional (included) terminal board.Supports 36 decoders.

Rank No. #16

Lantronix UD1100001-01 UDS1100 - One Port Serial (RS232/ RS422/ RS485) to IP Ethernet Device Server - UL864, US Domestic 110VAC - Convert from RS-232, RS-485 to Ethernet using Serial over IP technolog

With the UD1100001-01 virtually any piece of equipment can be added to an Ethernet network in a matter of minutes!
This single-port device server is a quick simple and inexpensive way to bring the advantages of remote management to equipment not currently connected to a network.
UL864 Compliant Wall Mountable, Rail Mountable, One DB-25 Serial Port; One 10/100 Mbps Fast Ethernet RJ-45 Port
Lantronix UDS1100 - One Port Serial (RS232/ RS422/ RS485) to IP Ethernet Device Server - UL864, US Domestic 110VAC - Convert from RS-232,
Runs on Lantronix DSTNI-EX 48 MHz processor for reliable performance. RS-485 to Ethernet using Serial over IP technology;

Rank No. #17

UOTEK RS232 to RS485 Serial Converter RS-232 to RS-485 Adapter Supports 600W Anti-Surge and ±15KV ESD Protection UT-2216

RS232 to RS485 converter, connect RS485 devices to COM port easily
Best solution for the communication between serial port and RS485 devices
Automatic sending and receiving data, real TXD/RXD/GND communication
Supports baud rates as high up to 115.2 Kbps
Supports a maximum connection distance of 16400ft (5000m)

Rank No. #18

Coolgear USB 2.0 to RS-232/422/485 Selectable Industrial Serial Adapter w/ 15kV ESD Surge Protection

Superior Build Quality: Housed in a rugged steel chassis with built in mountable flanges, the serial adapter hub is perfect for installations in labs, warehouses, or heavy machinery.
Safe Industrial Connections: Designed for use with Bar Code Scanners, Time Clocks, Label Printers, Point of Sale Terminals, Receipt Printers, and more the USB to Serial Adapter offers 15kV surge protection for connected devices.
Effortless Port Configuration: The adapter is designed with external dip switches to set RS-232, RS-422 or RS-485 ports and different operation modes conveniently.
COM Retention: COM Ports are fully configurable, and after reboots, port assignments are preserved.
USB Power: Power is drawn from a USB connection, no bulky power supply or power outlet is required.

Rank No. #19

UTEK UT-2201 Port-powered, RS-232 to RS-485/422, Mini-size

Pro grade RS232 to RS485 converter. It easily lets you connect any RS485 device directly to COM port
Standards: RS-232C, RS-485 EIA/TIA ● Connector: RS-232 DB9 female; RS-485 DB9 male, with terminal block
Working mode: asynchronous half-duplex differential transmission ● Transmission media: Twisted-pair or shielded cable
Baudrate: 300bps-115.2Kbps ● Dimension: 63mmX33mmX17mm ● RS-232 to RS-485 Serial Communication Data Converter Adapter Mini-Size
Operating temperature: -25℃ to 70℃ ● Relative humidity: 5% to 95% Transmission distance: 1,200m(RS-485), 5m(RS-232)

Rank No. #20

UOTEK 4.9Ft USB to RS485 RS422 RS232 Converter USB-A RS-232 RS-485 RS-422 Cable Serial DB9 Connector Full Half Duplex UT-8890

Standard: Compliant with USBV.1, 1.0, 2.0 standard and ELA RS-485, RS-422S standard
Working mode: 232 full duplex, asynchronous work, point-to-point or multi-point, 2-port half duplex, 4-port full duplex
Direction control: Data flow direction automatic control technology, automatic control of data transmission direction
Transmission distance: RS-232 end 5 meters, USB port no more than 5 meters; RS-485/422 end 1200 meters (9600bps when), USB port no more than 5 meters
Interface protection: Surge protection, ±15KV electrostatic protection

Last update on 2023-08-16 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What is the difference between RS232 and RS485 port?

A: But many computers still have an RS-232 port for compatibility purposes. RS-485 is also being phased out in computer hardware but has enjoyed wide use in other electronic devices; an example of which is in controlling CCTV cameras. Summary: 1.RS-232 uses 9 wires while RS-485 only uses 3. 2.RS-232 is full duplex while RS-485 is half duplex.

Q: How many wires are needed for RS485?

A: RS485 needs 3 conductors and a shield. Many people say its a two wire network but it is not. Two conductors are used to carry the RS485 Differential voltage signal.

Q: What is voltage level of RS-232?

A: Some RS-232 driver chips have inbuilt circuitry to produce the required voltages from a 5 volt supply. RS-232 drivers and receivers must be able to withstand indefinite short circuit to ground or to any voltage level up to ±25 volts .

Q: Is Modbus the same as RS485?

A: Is Modbus the same as RS485? The answer is no, because both of these are relative concepts that need each other in order to fulfil their purposes. Modbus defines the protocol type and RS485 defines the signal level on the protocol.