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The SeaLINK.SC (2123-OEM) is a compact OEM USB serial adapter that offers one software-configurable RS-232, RS-422, or RS-485 port with full modem control. Designed for embedded systems, it connects via a 4-pin Molex USB header and simplifies setup with software-based configuration..
The SeaLINK.SC (Model 2123-OEM) delivers a versatile and robust single-port USB-to-serial interface in a compact form factor built for embedded applications. Whether you're working with RS-232, RS-422, or RS-485, the serial mode is software-selectable and persistent across reboots and host systems.
The device is powered entirely from the USB connection and uses a vertical 4-pin Molex USB header for internal motherboard connectivity. LEDs indicate power, active interface mode, and serial transmission status, making diagnostics quick and easy.
Sealevel’s state-machine USB architecture optimizes performance while minimizing CPU load—perfect for industrial, commercial, or kiosk applications.
One software-configurable RS-232/422/485 port
100% software-configurable—no jumpers or switches
Retains settings across multiple systems
High-speed UART with 128-byte Tx and 384-byte Rx FIFO
Supports data rates up to 921.6K bps
Powered via USB—no external power required
DB9M serial connector with full modem control in RS-232
Status LEDs for interface mode and serial activity
Compact design ideal for OEM boards and internal integration
SeaCOM drivers for Windows 98SE to Vista
| Parameter | Value |
|---|---|
| Model | SeaLINK.SC (2123-OEM) |
| Host Interface | USB |
| Number of Ports | 1 |
| Serial Interface | RS-232, RS-422, RS-485 |
| Connector Type | DB9M |
| Configuration Method | Software-Defined (no jumpers or switches) |
| Max Data Rate | 921.6K bps |
| Max Data Distance | 50 feet (RS-232), 4000 feet (RS-485) |
| Power Requirement | USB Powered |
| USB Header | 2mm 4-pin Molex (Molex #35507-0400) |
| USB Specification | USB 1.1 Compliant; USB 2.0 Compatible |
| Dimensions | 2.9" (L) x 2.5" (W) x 0.6" (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 | No |
| Communication Chip | USB/UART |
| Humidity Range | 10–90% Relative Humidity, Non-Condensing |
| Product Family | SeaLINK |