ES-257 2 Port RS232 Ethernet to Serial Adapter
- 2 Port RS-232
- Ethernet to Serial Device Server
- Data rate from 110 to 1,000,000 baud (1 MegaBaud)
- Install Virtual Com ports or use the Software APIs for Visual Basic, C# and more
- Serial Port Tunnelling allows serial cable replacement over any distance, no software required
- Power supply included (power input 5-30V DC)
Download ES-257 Technical Datasheet (PDF)
ES-257 Description
Ethernet to Serial device server providing access to two RS232 serial ports. Data transfer rates up to 1,000,000 baud (1 MegaBaud), coupled with 1Mbit/s line drivers deliver uncompromising performance. Baud rates can be standard values such as 9,600, 115,200, 230,000, 921,600 or user definable non standard values.
Our ES range provides simple instant networked serial ports. A web interface allows secure configuration and control of the serial ports over a local network or the internet using any browser.
For Windows our in-house designed (32 bit and 64 bit) driver gives you local COM ports, retaining existing software applications and allowing you to connect across your network to remote devices just as if they were attached locally.
Serial Port Tunnelling (individually configurable) allows serial cable replacement over any distance, no software required. You can access the device via TCP/IP sockets from any networked device like an Android tablet, PC or phone. On Windows OS TCP/IP sockets are handled by the Winsock API, this will differ on other OSs.
See other products the same category as ES-257: DB9
Manage the ES-257 with BB Eco
Your devices, managed your way.
Free. Local-first. Air-gap ready. No account required.
BB Eco finds the ES-257 on your network, flashes it so you can spot it in the cabinet, upgrades its firmware and keeps its settings in step with a template - for one device or a hundred.
Transcript
BB Eco. Replaces Boost.IO and Boost.LAN.
An ES-246 turns into view as the BB mark draws.Discover.
The ES-246 appears in BB Eco with its name, address and firmware version.Locate.
One click on Locate and the ES-246 flashes its LEDs, so you can find it in the cabinet.Upgrade, with confidence.
BB Eco checks the firmware is right for the device, then upgrades it stage by stage.One device, or a hundred.
One ES-246, then a cabinet of fifteen devices, then a row of cabinets.Upgrade all, in one workflow.
Every device in the cabinet is upgraded in turn.Apply one template to them all.
A template is previewed on eight devices, then applied.BB Eco spots changes from your template.
A changed setting is shown against the saved baseline.Scan. Script. Automate.
A subnet scan, the command line, and automatic upgrades.BB Eco. Keep the Work Moving. Windows, macOS, Linux and CLI. Free. Local-first. Air-gap ready. No account. brainboxes.com/bb-eco.
The end card, with the ES-246 beside it.
ES-257 Media
2 Port RS-232 Ethernet To Serial Adapter Brainboxes ES-257
Using C# to control Brainboxes' Ethernet to Serial devices
Using VB to control Brainboxes' Ethernet to Serial devices
ES-257 Supported Operating Systems






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