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

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

Rs. 61849.00

The SeaLINK+8/485 (Model 2802) is a heavy-duty USB-to-serial adapter that connects up to eight RS-422 or RS-485 serial devices through a single USB port. Designed for industrial environments, it offers secure communication up to 4000 feet per port with dipswitch-based configuration and a robust metal enclosure. This adapter is ideal for automation, process control, and legacy equipment integration..

  • Detail
  • Special Features
  • Specification

The SeaLINK+8/485 from Sealevel Systems is engineered for demanding applications requiring multiple long-distance serial connections. Each of its eight DB9M ports supports RS-422 or RS-485 protocols, with hardware selection via easy-to-access internal dipswitches. Built for mission-critical environments, its metal enclosure and high-retention SeaLATCH USB connector prevent disconnections in mobile or vibration-heavy setups. With SeaCOM driver compatibility, all ports are registered as individual COM ports — ensuring smooth integration with existing software. Designed to be efficient, its internal state-machine architecture offloads work from the host PC, making it a reliable solution for scalable serial I/O deployment.

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

  2. Each port configurable via internal dipswitches

  3. Rugged metal chassis for industrial reliability

  4. SeaLATCH locking USB connector ensures cable security

  5. USB Type B high-retention interface

  6. Supports data rates up to 460.8K bps

  7. LED indicators for power and port activity

  8. USB bus-powered — no external supply needed

  9. Extended operating temperature version available

  10. Full driver support for Windows and Linux platforms

Parameter Value
Model SeaLINK+8/485 (2802)
Host Interface USB
Number of Ports 8
Serial Interface 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 with Type B connector
Status Indicators Power & TX/RX activity LEDs
Port Configuration Internal dipswitch (per port)
Operating Systems Windows, Linux
Software Included SeaCOM USB drivers and utilities
Product Family SeaLINK