Home SEALEVEL | USB Serial (Software Selectable) Adapters SeaLINK+2.SC: USB to 2 Port RS-232/422/485; Software Config
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SEALEVEL | USB Serial (Software Selectable) Adapters

SeaLINK+2.SC: USB to 2 Port RS-232/422/485; Software Config

Now includes NABL Calibration Certificate.
Rs. 23241.00

The SeaLINK+2.SC (2223) USB adapter offers two software-configurable serial ports—RS-232, RS-422, or RS-485—via a single USB port. Ideal for industrial and legacy device integration, it features software-based configuration, rugged housing, and SeaLATCH locking USB support..

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  • Special Features
  • Specification

The SeaLINK+2.SC (Model 2223) is a dual-port USB-to-serial adapter that provides reliable and efficient connectivity for RS-232, RS-422, or RS-485 devices. It simplifies integration with legacy or industrial hardware by allowing full software configuration of each port without opening the unit.

This adapter is bus-powered and integrates Sealevel’s SeaLATCH USB locking mechanism, which prevents accidental cable disconnection in demanding environments. Its rugged plastic housing is suitable for panel, wall, or DIN rail mounting. Configuration can be set up on one system and deployed across multiple machines—perfect for scalable industrial setups.

With a high-speed UART and Sealevel’s state-machine USB architecture, the adapter delivers exceptional performance while minimizing host CPU load. Standard temperature operation from 0°C to 70°C is included, with extended temperature models available.

  1. Two serial ports, fully software-configurable

  2. Supports RS-232, RS-422, and RS-485 on each port

  3. No jumpers or switches—configuration handled through driver

  4. Retains configuration across host systems

  5. Data rates up to 921.6K bps

  6. Rugged plastic enclosure with optional DIN rail mount

  7. SeaLATCH locking USB port with secure thumbscrew cable

  8. Powered directly by USB—no external power supply required

  9. LEDs for power, activity, and interface status

  10. Easy driver installation via Sealevel SeaCOM for Windows

Parameter Value
Model SeaLINK+2.SC (2223)
Host Interface USB
Number of Ports 2
Serial Interface RS-232, RS-422, RS-485
Connector Type DB9M
Configuration Method Software-Based (Driver Controlled)
Max Data Rate 921.6K bps
Max Data Distance 50 ft (RS-232), 4000 ft (RS-485)
Power Requirement USB Powered
USB Type SeaLATCH High-Retention Type B with Locking Support
USB Specification USB 1.1 Compliant; USB 2.0 Compatible
Dimensions 4.3" (L) x 3.4" (W) x 1.3" (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)
High Retention USB Yes
Communication Chip USB/UART
Enclosure Type Rugged Plastic (DIN rail option available)
Humidity Range 10–90% Relative Humidity, Non-Condensing
Product Family SeaLINK