StarTech.com ICUSB234854I 4-Port Industrial USB to Serial Adapter Hub RS232 RS422 RS485 DB9 921.6kbps FTDI DIN-Rail IP30 15kV ESD
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StarTech.com
StarTech.com ICUSB234854I 4-Port Industrial USB to Serial Adapter Hub RS232 RS422 RS485 DB9 921.6kbps FTDI DIN-Rail IP30 15kV ESD
€444.63 inc. VAT
ICUSB234854I
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StarTech.com ICUSB234854I — 4-Port Industrial USB to RS-232 / RS-422 / RS-485 Serial Hub
4x DB-9, RS-232 / 422 / 485 per portUp to 921.6 kbpsFTDI FT4232HIP30 steel, DIN rail, 15 kV ESD
The StarTech.com ICUSB234854I is a four-port USB-to-serial hub for industrial control: four DB-9 ports, each switchable between RS-232, RS-422 and RS-485, driven by an FTDI FT4232H over one USB 2.0 cable, in an IP30 steel case that clips onto a DIN rail. It is for PLCs, drives, meters, scales and sensors that still speak serial, connected to a modern PC with no COM ports.
Compatibility — check before buying:
This is a serial adapter, not a USB hub: the four ports are DB-9 serial, not USB. It runs from USB bus power; a 12 V adapter is not included and is only needed if you want to supply 12 V to devices on pin 9 (5 V is available from bus power). StarTech does not publish how the RS-232/422/485 mode is selected per port or the RS-485 termination details, so check the manual for your wiring. FTDI drivers cover current and legacy Windows, Linux and macOS.
Best For
✓ PLCs, drives and HMIs on RS-485 buses
✓ Meters, scales and sensors on RS-232
✓ Legacy machines connected to a new PC
✓ Building automation and BMS controllers
✓ Lab instruments with serial control
✓ DIN-rail cabinets with mixed serial devices
Key Features
Four serial ports, three standards
Each DB-9 port is individually configurable as RS-232, RS-422 or RS-485 (2-wire or 4-wire) at up to 921.6 kbps, with 7 or 8 data bits, 1 or 2 stop bits, odd/even/mark/space/none parity and a 2 KB buffer; per-port LEDs show mode, TX and RX.
Industrial protection
15 kV Level 4 ESD protection on the ports, IP30 steel enclosure, 0–55 °C, 262,123-hour MTBF, screw-lock USB-B host port with a 2 m screw-lock cable included.
Powered devices on pin 9
Pin 9 of each port can be set to 5 V (bus power), 12 V (with an external adapter, not included) or 0 V, to power small serial devices without a separate supply.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
Four configurable serial ports on a DIN rail is exactly what a retrofit needs when a new PC meets old machines; the eight-port ICUSB234858I on this page is the same design with an adapter included for larger panels. Both run on FTDI silicon, the safest choice for legacy software. For the USB side of the same cabinet see our USB hubs, and for the network side our network switches. Not sure your computer, cabinet supply or cable fits? Tell us the model and we check it before you order.
Buyer’s Guide
Buy it if
You need four RS-232 / RS-422 / RS-485 ports from one USB cable on a DIN rail, with FTDI drivers and IP30 steel protection.
Skip it if
You need USB ports rather than serial, more than four serial ports, or a 12 V adapter in the box.
Also consider
ICUSB234858I for eight ports with adapter; StarTech 5G2A1SGBB-USB-C-HUB for one RS-232 port on a laptop.
Features - StarTech.com - ICUSB234854I
Colour
black
Interface
- USB2.0
More Details
Product Code
V934363
EAN Code
0065030878562
Manufacturer
StarTech.com