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Description
B+B SmartWorx RS-232 to RS-485 ConverterB+B SmartWorx RS 232 to RS 485 Converter The B+B SmartWorx RS 232 to RS 485 Converter is a compact, industrial grade interface that enables seamless bridging between legacy serial devices and modern RS 485 networks. Built for reliability in demanding environments, this converter translates unbalanced RS 232 signals into the balanced, multi point capable RS 485 differential pair, supporting both full duplex (4 wire) and half duplex (2 wire)
B+B SmartWorx RS-232 to RS-485 Converter
The B+B SmartWorx RS-232 to RS-485 Converter is a compact, industrial-grade interface that enables seamless bridging between legacy serial devices and modern RS-485 networks. Built for reliability in demanding environments, this converter translates unbalanced RS-232 signals into the balanced, multi-point capable RS-485 differential pair, supporting both full-duplex (4-wire) and half-duplex (2-wire) configurations. By doing so, it unlocks long-distance communications, improved noise immunity, and greater network scalability for automation, data acquisition, telemetry, point-of-sale systems, and remote monitoring. The product integrates smoothly with existing equipment, requiring minimal setup and no complex driver installation in typical serial port environments. Its durable design, straightforward wiring, and flexible operation make it a preferred choice for engineers who need a dependable bridge between serial and fieldbus architectures. This description blends key elements commonly highlighted in multiple descriptions of the converter to provide a practical, thoroughly explained overview of how the device can improve reliability, simplify integration, and extend the reach of industrial networks.
- Converts unbalanced RS-232 signals to RS-485, enabling long-distance, multi-drop networks while preserving data integrity through differential signaling. It supports both full-duplex (4-wire) operation for simultaneous two-way communication and half-duplex (2-wire) operation for multi-node RS-485 networks, giving you flexible network topology options.
- The RS-232 interface is a female DB25S connector with pin 2 designated for the transmit data (TD) input, allowing easy connection to standard serial devices without adapters. The RS-485 side uses a standard differential pair for A and B lines, compatible with most RS-485 networks and devices, ensuring broad interoperability across equipment.
- Designed for rugged environments, the converter features a compact enclosure suitable for panel mounting or desktop use, with straightforward signal routing and minimal cabling required. This makes installation quick, reliable, and adaptable for industrial settings, data centers, manufacturing floors, kiosks, and field installations where space is at a premium.
- Enhances system reliability by improving noise immunity and enabling longer cable runs, allowing remote monitoring, centralized data collection, and distributed control without sacrificing speed or accuracy of serial data. The device supports robust performance in electrically challenging environments where RS-232 stubs and RS-485 noise would otherwise degrade communication.
- Ideal for a wide range of applications including industrial automation, telemetry, point-of-sale systems, and data acquisition, where legacy RS-232 devices must communicate with RS-485 sensors, PLCs, or multi-drop controllers. The converter helps reduce the need for multiple adapters and minimizes network reconfigurations while delivering consistent serial performance.
Technical Details of B+B SmartWorx RS-232 to RS-485 Converter
- Interface: RS-232 on a female DB25S connector; pin 2 (TD input) is used for transmit data, with ground and control lines aligned to standard RS-232 signaling for compatibility with a broad range of legacy devices.
- RS-485: Supports both 4-wire full-duplex and 2-wire half-duplex configurations, enabling flexible network topologies to match your application needs.
- Networking capability: Designed to connect a single RS-232 device to an RS-485 multi-point network, suitable for point-to-multipoint and multi-point communication schemes commonly found in industrial environments.
- Durability and form factor: Encased in a compact, rugged housing appropriate for panel mounting or desktop placement, built to withstand the rigors of industrial applications while occupying minimal space.
- Driver requirements: Intended for straightforward operation with standard serial signaling; typically does not require complex software drivers, allowing easy integration with existing systems and software tools.
How to install B+B SmartWorx RS-232 to RS-485 Converter
- Power down all connected equipment before making connections to avoid electrical damage or data corruption.
- Connect the RS-232 device to the converter’s DB25S female connector, ensuring pin 2 (TD input) aligns with the transmitter line of your DTE device and that ground is properly referenced.
- Wire the RS-485 network to the converter’s differential outputs, using A and B lines per your network specification. If your network requires biasing or termination, set up the appropriate resistors or jumper configurations according to the included manual.
- Configure the converter for the desired RS-485 mode: select 4-wire full-duplex or 2-wire half-duplex as dictated by your device network and data flow requirements. If available, enable any direction-control or biasing options per your system design.
- Power on the system and perform a basic communication test using your host computer or test software to confirm that data is transmitted and received correctly across the RS-485 network. Validate both directions if operating in full-duplex mode.
Frequently asked questions
- What does the B+B SmartWorx RS-232 to RS-485 Converter do? - It provides a bridge between an RS-232 serial device and an RS-485 network by converting unbalanced RS-232 signals into balanced RS-485 differential signals, enabling longer cable runs, improved noise immunity, and multipoint communication capabilities.
- Which connector is used on the RS-232 side? - The device uses a female DB25S connector, with pin 2 typically serving as the transmit data input, compatible with many legacy serial devices and standard DTE connections.
- Can I use it with both 4-wire and 2-wire RS-485 networks? - Yes, the converter supports both full-duplex 4-wire and half-duplex 2-wire RS-485 configurations to match your network topology and application needs.
- Do I need special drivers to use this converter? - In most typical deployments, no special software drivers are required; the converter relies on standard RS-232 signaling and RS-485 differential signaling for communication. Some operating systems or applications may require driver or port configuration for serial access.
- Where can I find more exact specifications? - Refer to the official product documentation or the supplier’s technical specifications page for the latest details, installation notes, and recommended wiring practices.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 888 reviews
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Product Reviews
★★★★★ 3
Imperfect, sometimes charging is unreliable, clamp needs power to work and annoyingly not auto
The build quality is great for the price. Like iOttie. The tech advancement is cool but it doesn't work very well which is a disappointment.
It doesn't charge my phone very fast, because my phone is limited to 15 watt wireless charging, but it's great for preventing battery loss while using GPS.
The button to manually clamp and unclamp are a little too hard to press, it flexes the whole holder, so you need to press with your whole hand supporting the holder.
Sometimes my phone disconnects and reconnects randomly to this charger multiple times. Not sure if it's the charger or phone but that stinks . (I'm using an Anker 50w USB adapter for this wireless charger)
The clamping is motorized which is cool, but it's honestly less reliable than a spring loaded clamp because it doesn't always auto clamp the phone.
When this clamp is working properly it is great as it auto clamps onto a phone it's charging. But the issue is it doesn't always clamp.
It sometimes thinks it's clamped, when it's not, so you have to press the manual activation button twice so the phone will be locked in place. It's hard to know when you need to press just once or twice.
(The reason you press the button twice is if it thinks it's closed when it's actually open. Then you press first to "open" the clamp, even though it's already open, then press again to close it.
But if it knows the correct clamp position already, and just refuses to auto clamp, you only press the button once. If you press twice, you will end up cancelling the clamp. It feels random and unpredictable what the correct action is)
The clamping requires power which is another disadvantage to spring loaded hand clamps. But unclamping works without power due to a backup battery.
(Powered clamping is still better than those manual squeeze clamps, which are finicky to get a strong enough clamp on the phone)
I'm not sure how safe the battery is in a super hot car, like Florida heat. It seems fine for Pa heat.
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Reviewed in the United States on October 9, 2025
★★★★★ 5
Great product
UPDATE: Amazing customer service. I didn’t reach out, they did. After some adjustment shaking is minimal. Also regardless the charging. Well apparently my case is not compatible with fast charge. Phone charges fast without the case. Guess that has been my issue with other wireless charges. Definitely recommend. My husband went with another brand and now will be getting the same as mine.
Cool idea but definitely not super fast charge. In 40 minutes charged only 10%, was expecting more. Hold phone well but it shakes while driving. Installation was super easy.
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Reviewed in the United States on July 31, 2025
★★★★★ 1
.
Don’t waste your money on this phone holder. I had a very bad experience with it, and it damaged my phone twice.
The holder opens by itself without warning, causing the phone to fall out while driving. Sometimes I found my phone under the seats, and other times it dropped while I was driving on the highway, which is very dangerous and distracting.
One time, the holder suddenly released my phone and it hit the handbrake hard, breaking the screen completely. I had to spend $500 to replace the screen.
The opening and locking system does not work properly. Sometimes it opens randomly, and sometimes it closes by itself. The wireless charging is also unreliable — sometimes it charges, and other times it stops charging unexpectedly. When the charging stops, the holder suddenly unlocks and drops the phone.
Overall, this product is unsafe, unreliable, and not worth the money.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Outstanding! 5 Stars for Mobility, Durability, Functionality and Ease of Use.
This little invention is outstanding! It holds phones of multiple sizes very securely in place without any bonding or sticky attachments that could damage your vehicle. Mobility is simple as it's easy to add and remove to any vehicle with air condition vents. Best of all, various size devices can be easily held in place with a quick squeeze of the side mounts and just as easily removable with a single press of a release button on the back side. The mount is also very strong and holds up to various temperatures. For example, in the summer it can become very hot in an enclosed vehicle and this mount holds up when other mounts tend to fail from over exposure to heat. The failure causes the joints or fittings to loosen, which will cause your device to slip from an intended position. Well, that is not a problem with this one. It has stood the test of time as I have used this mount for over a year in extreme environments. In the end, it appears that my family has come to like this product too. Ahem, my wife just took mine! So, I have returned to purchase another one for myself and two more for my daughters. Then I don't have to worry about my daughters taking mine either. Yes, I'm finally thinking ahead, so maybe you should think ahead and get additional copies for your family members. Either way, try one and you'll likely be back for more. It makes a great gift. I highly suggest this product to everyone who needs a mobile device mount for their vehicle.
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Reviewed in the United States on August 4, 2025
★★★★★ 5
Excellent Product and Exceptional Quality and Service – Highly Recommend!
I recently purchased the LISEN Car Phone Holder Mount [Military Stable] and couldn’t be more impressed! From the moment I unboxed it, I could tell it was built to last. The design is sleek and modern, and it holds my iPhone 15 Pro Max securely without any wobbling, even during bumpy rides. The military-grade stability lives up to its promise—this mount stays firmly in place, and the adjustable clamps fit my phone perfectly.
What really stood out to me was the ease of installation. It attaches to my car vent effortlessly, with no tools required, and doesn’t block any air flow, which is a huge plus. It’s also compatible with various phone models, including the latest iPhone 16, so I know it will be a long-term solution for my future upgrades.
In addition to the great product, the customer service from Linsen was outstanding. They provided timely and clear communication, answering all my questions before I made the purchase. It’s rare to experience such excellent support these days, and it made my buying experience even better.
If you’re looking for a reliable, sturdy, and easy-to-use car phone holder, this is the one to get! https://www.amazon.com/dp/B0CXLQDY5B Highly recommend!
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Reviewed in the United States on August 10, 2024