SEALEVEL | USB Serial Adapters

SeaI/O-647U-OEM

Rs. 44831.00

The SeaI/O-647U-OEM is a board-level 4-port USB to RS-232/485 adapter tailored for OEM integration into industrial systems, embedded platforms, or custom computing enclosures. Featuring Sealevel’s VersaCom multi-interface design, it provides high-speed, low-overhead serial communication through compact RJ45 ports..

  • Detail
  • Special Features
  • Specification

The SeaI/O-647U-OEM brings industrial-grade serial connectivity to embedded environments. Designed specifically for OEMs and system builders, this compact PCB integrates four RJ45 VersaCom ports that simultaneously support RS-232 and RS-485 signal sets. Configuration is purely external—no internal switches, jumpers, or shunts are needed.
Ideal for tight enclosures or space-constrained builds, the board is powered by a wide-range 9–30VDC input and comes with high-retention USB connectivity for reliable data transmission.
It includes an RS-485 passthrough for seamless expansion using SeaI/O N-series OEM boards, enabling versatile I/O capability like digital relays, analog inputs, and more. Whether in custom control systems, kiosks, or automation panels, the 647U-OEM delivers reliable, fast, and scalable serial integration.

  1. OEM board form factor for embedded designs (ITX, EBX, ATX, etc.)

  2. 4 RJ45 serial ports supporting RS-232 and 2-wire RS-485 simultaneously

  3. VersaCom design—no jumpers or dip switches required

  4. High-speed data rates up to 921.6K bps

  5. Transmit and receive status LEDs on each port

  6. State-machine architecture for reduced CPU load during I/O

  7. High-retention USB Type B connector for secure cable connection

  8. Powered via 9–30VDC input (terminal block or barrel connector)

  9. Compatible with SeaI/O N-series OEM expansion boards via RS-485 pass-through

  10. RoHS and WEEE compliant

Parameter Value
Model SeaI/O-647U-OEM
Host Interface USB
Number of Ports 4
Serial Interface RS-232, RS-485
Serial Connector(s) RJ45 VersaCom
Max Data Rate 921.6K bps
Max Data Distance 50 feet (RS-232), 4000 feet (RS-485)
Power Requirement 9–30VDC @ 1.5W
USB Powered No (external power required)
USB Specification USB 1.1 Compliant; USB 2.0 Compatible
Dimensions 7.5" (L) x 5.0" (W) x 0.8" (H)
Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -50°C to 105°C (-58°F to 221°F)
Humidity Range 10–90% Relative Humidity, Non-Condensing
Communication Chip USB/UART
High Retention USB Yes
OEM Ready Yes
Included Accessories USB A to B Cable (72"), Metal standoffs with nuts
Product Family SeaI/O