Home SEALEVEL | USB Serial Adapters SeaLINK+8: USB to 8 Port RS-232/422/485 Serial Adapter E1
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SEALEVEL | USB Serial Adapters

SeaLINK+8: USB to 8 Port RS-232/422/485 Serial Adapter E1

Rs. 64389.00

The SeaLINK+8 (Model 2803) offers eight versatile USB-to-serial ports that can be individually configured for RS-232, RS-422, or RS-485 communication. Designed for industrial-grade reliability, it features dipswitch-based port control, rugged housing, and secure USB locking with high-retention connectivity. Ideal for large-scale automation and control systems, this adapter ensures high-performance data exchange with legacy and modern equipment alike..

  • Detail
  • Special Features
  • Specification

The SeaLINK+8 (2803) is a robust solution for multiport serial communication via USB, supporting eight configurable serial channels in one compact chassis. Built with industrial durability in mind, each port can be toggled internally between RS-232, RS-422, and RS-485 modes using built-in dipswitches. Ideal for use with PLCs, sensors, modems, or legacy serial devices, this adapter simplifies serial management and legacy integration. The rugged metal case and locking SeaLATCH USB connector ensure consistent operation in mobile or vibration-heavy settings. With broad OS support and easy installation, it’s a ready-to-deploy tool for demanding serial applications.

  1. 8-port USB to RS-232/422/485 adapter

  2. Per-port dipswitch configuration inside the enclosure

  3. Heavy-duty metal housing for industrial environments

  4. SeaLATCH USB locking port for cable security

  5. USB Type B high-retention interface

  6. State-machine architecture minimizes host CPU load

  7. Supports baud rates up to 460.8K bps

  8. Front-facing LEDs show power and port activity

  9. Fully powered via USB – no external power needed

  10. Compatible with Windows and Linux via SeaCOM drivers

Parameter Value
Model SeaLINK+8 (2803)
Host Interface USB
Number of Ports 8
Serial Interface RS-232, RS-422, RS-485
Serial Connectors DB9 Male (x8)
Max Data Rate 460.8K bps
Max Data Distance 4000 feet
Power Requirement +5V @ 500mA (USB Powered)
USB Powered Yes
USB Specification USB 1.1 Compliant; USB 2.0 Compatible
Dimensions 8.7" × 6.1" × 2.0"
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
USB Locking Port SeaLATCH Type B with thumbscrew
Port Configuration Internal dipswitch (per port)
Status Indicators LEDs for power and port activity
Operating Systems Windows, Linux
Software Included SeaCOM USB drivers and utilities
Product Family SeaLINK