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Description
B+B SmartWorx 2 Port Ethernet Serial Server, DIN, Wide TemperatureThe ESR900 Series Industrial Ethernet Serial Server is engineered to bridge modern Ethernet networks with legacy serial devices in demanding environments. This 2 port model provides reliable, long term connectivity for PLCs, sensors, controllers, and serial peripherals across factory floors, control cabinets, and industrial facilities. Built for harsh settings, it combines a slim DIN rail friendly enclosure, IP30 protection, and a broad operating
The ESR900 Series Industrial Ethernet Serial Server is engineered to bridge modern Ethernet networks with legacy serial devices in demanding environments. This 2-port model provides reliable, long-term connectivity for PLCs, sensors, controllers, and serial peripherals across factory floors, control cabinets, and industrial facilities. Built for harsh settings, it combines a slim DIN-rail friendly enclosure, IP30 protection, and a broad operating temperature range to ensure stable operation even in the most challenging environments. Whether you need RS-232 or RS-485 interfaces, the ESR900 simplifies integration, reduces wiring complexity, and enhances data visibility across your automation infrastructure.
- 2-port Ethernet Serial Server — Industrial-grade Ethernet to RS-232 and RS-485 conversion with two serial ports, designed to connect Ethernet networks to legacy serial devices with reliability and ease.
- DIN rail mountable, thin-profile enclosure — A compact, space-efficient design that fits neatly into standard control panels and on DIN rails for streamlined industrial deployment.
- Industrial-grade protection — IP30-rated housing offers protection against dust and debris in rugged environments, ensuring long-term durability in manufacturing floors and harsh enclosures.
- Wide temperature operation — Built to handle challenging temperature ranges found in industrial settings, outdoor kiosks, and refrigerated or heated facilities, ensuring consistent performance year-round.
- Redundant power supply support — An option for redundant power keeps critical serial communications online, minimizing downtime in automation, SCADA, and process control applications.
Technical Details of ESR900 Series
- Product family: ESR900 Series Industrial Ethernet Serial Server (One, Two or Four Ports)
- Serial interfaces: Ethernet to RS-232 and RS-485 converters with two serial ports on this model
- Mounting: Thin-profile DIN rail mountable enclosure for convenient panel installation
- Protection: IP30 rating for dust protection and rugged durability in industrial environments
- Operating conditions: Wide temperature range suitable for cold rooms and hot environments
- Power: Redundant power supply option to maximize uptime
- Applications: Ideal for industrial automation, SCADA, PLC networks, and device network bridging
how to install B+B SmartWorx ESR900 2-Port Ethernet Serial Server
- Mount the ESR900 on a standard DIN rail inside your control cabinet or equipment enclosure to leverage its compact, DIN-friendly design.
- Connect the Ethernet network to the ESR900 and wire the two serial devices to the RS-232/RS-485 ports as required by your application (one device per port or configured topologies).
- Provide power to the unit, using the redundant power supply option if available, to ensure continued operation in the event of a primary power fault.
- Power up the device and perform a basic connectivity check to confirm the Ethernet link and serial paths are established with your devices or network management system.
- Configure network and serial parameters as needed to align with your existing protocols and device settings, and integrate with your SCADA or PLC system for seamless data exchange.
Frequently asked questions
- Q: What is ESR900? A: ESR900 is B+B SmartWorx's industrial Ethernet Serial Server family, available in One, Two, or Four port configurations, designed to convert Ethernet traffic to RS-232 or RS-485 serial communications in harsh environments.
- Q: How many ports does this model have? A: This specific model provides 2 serial ports on the ESR900 series, enabling two concurrent serial connections over Ethernet.
- Q: Is the enclosure DIN rail mounted? A: Yes—the ESR900 is designed with a thin-profile DIN mount case for easy installation in standard control panels.
- Q: What is the IP rating? A: The ESR900 enclosure carries an IP30 rating, protecting internal components from dust and debris while deployed in industrial settings.
- Q: Can it operate in wide temperature environments? A: Yes—the ESR900 series is built for wide temperature ranges, allowing operation in temperatures typical of industrial facilities and outdoor installations.
- Q: Does it support redundant power? A: Yes, a redundant power supply option is available to maximize uptime in critical applications.
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
4.0 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Great tug toy
Color: Orange
Great size for dogs 50-58 lbs to play tug with. Well made, bright colors, and easy for them to grab. Very pleased and at a good price.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Will buy again
Color: Orange, Color: Orange
This was one of the first toys I got my dog and he LOVED IT. I sadly had to throw it away because he peed on it but this is something I will definitely repurchase. Perfect for tug of war and playing fetch. Definitely not indestructible as he did rip it a little but it took him a LONG time to do that
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Perfect size for pittie pups
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
This was a pretty good toy. I have three pitbulls. The puppy in my video is 65lbs for reference to the toy. I thought that since it was fluffless she wouldn't try to eat the thing but after a couple of days of tugging it with her brothers the toy's paw came off and I was not fast enough to prevent her from swallowing it. She got rid of it with little GI stress. I will say that even though she's not squeaking it in the video, it has a pretty loud squeak. Overall we had it for four days before 260lbs of pooches were able to get the squeaker out. If you have pits then you know this is 5-star worthy sturdiness.
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Reviewed in the United States on July 9, 2022
★★★★★ 5
An Instant Hit and Everyone's New Favorite
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
An instant favorite! It took quite a while for my dog to break the squeaker, too. I love that it uses a water bottle for the crinkle sound, and I'm kind of glad the squeaker finally bit the dust. That works out well for us. It's tough enough that it's not ripped yet. Our dog plays with this toy every day.
No fluff to pull out was definitely a plus for me. It's a great toy for the price, and I think small and larger dogs would also enjoy it. Johan is 7 months old, weighs about 40 pounds, and always chooses a favorite toy. This one replaced a worn out toy frog that was smaller, but still treasured. I was so glad that he loves this one just as much.
It's a little bit longer than a regular-sized water bottle and has dangly legs. I think you could also put plastic that crinkles inside it, and they would love that too. It has a velcro closure to keep whatever you put in there inside, and he hasn't figured out how to open it so far.
Update: We just bought a second one of these because he enjoyed the first one to its conclusion. It lasted longer than most toys (about 4 months with HARD use by a giant puppy), and it is his most favorite soft toy. The original didn't rip or tear, but the velcro got worn out when he figured out how to open it. I probably could have fixed it easily, but since Johan is the goodest boy, I got him a new one.
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Reviewed in the United States on January 2, 2026
★★★★★ 5
Best Toy Ever! 🐾
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
Hey, it’s me, your dog! 🐶 This Frog toy is AMAZING! No stuffing to pull out (finally), so I can chew and squeak it all I want without making a mess. The squeaker is SO satisfying, I carry it everywhere. It’s the perfect size for playing tug-of-war and fetch with my human. I’ve had it for a while now, and it’s still holding up strong—no rips or tears yet! If you love squeaky toys and want something that lasts, this frog is paws-itively the best! 🐸
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Reviewed in the United States on December 6, 2024