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USB 2.0 to 16-Port RS-232, RS-422, RS-485 DB9M Serial Interface Adapter

10/11/2023

The SeaLINK® 2165-OEM USB 2.0 serial I/O adapter offers an easy way to add 16 multi-interface serial ports to a single USB port in your OEM application. Each serial port is available on a standard DB9M connector and is individually configurable for RS-232, RS-422, or RS-485. The electrical interface, echo suppression, line termination, and receive biasing for each serial port is set via convenient on-board DIP-switches. The adapter supports a wide range of standard and non-standard baud rates exceeding 921.6 Kbps on each port.

The 2165-OEM serial adapter includes a high-retention USB Type B connector to help prevent accidental disconnection of the USB cable. On-board status LEDs display serial data activity, the board heartbeat, electrical interface selection and line termination state. The adapter requires 5 VDC external power, via a 2-pin Mini-Fit Jr. header connector on the board, and operates over a wide operating temperature range of -40 to +85C.

Main Features

  • Compliant with RoHS and WEEE directives
  • USB 2.0 Full/Hi-Speed device with high-retention USB Type B connector
  • Each port individually configurable for RS-232, RS-422, or RS-485
  • Serial ports are available on standard DB9M connectors
  • Supports data rates exceeding 921.6 Kbps on each port
  • Automatic RS-485 enable/disable during transmit
  • In RS-232 mode, all modem control signals (except RI) are implemented
  • Four-wire RS-485 is supported in RS-422/485 modes
  • On-board serial activity and diagnostic LEDs
  • Requires 5 VDC @ 2.5 A (max) via 2-pin Mini-Fit Jr. header connector
  • Sealevel SeaCOM software supports Microsoft Windows and Linux operating systems
  • USB device cable (Item# CA179), other cables and items available as accessories
Documents Tech question
Sealevel serial io adapter

USB 2.0 to 16-Port RS-232, RS-422, RS-485 DB9M Serial Interface Adapter

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Sealevel

Sealevel reinvented the I/O and industrial computing industry with the first RS-422/485 communication adapter for the IBM PC. Since 1986, Sealevel has continued to redefine design, engineering and manufacturing for industrial computers, Ethernet serial servers, USB serial, PCI Express and PCI bus cards, and IoT hardware and software. All products are world class, American made.

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Documents

  • Sealevel 2165 OEM SL9397 E22 Datasheet
Pexels thisisengineering 3913017

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