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© Sealevel Systems, Inc.
2106 Manual | SL9094 8/2022
Product Description
The Sealevel Systems 422 serial interface adapter provides the PC with a single USB to RS-422
asynchronous serial port providing a versatile interface for common RS-422 needs. The 422
connects to a PC’s external USB port, so it does not require opening the computer case. Resources such
as IRQs and I/O addresses are also not utilized.
The SeaLINK® USB to RS-422 serial adapter utilizes Sealevel’s expertise in military-grade designs by
incorporating a ruggedized, overmolded enclosure design. This improves the reliability and durability in
industrial and mobile applications.
The 2106 features programmable baud rate and data formats with 128-byte transmit and 384-byte receive
buffers. The USB serial adapter is compatible with all standard PC baud rates (300 baud and above) and
supports high-speed communication to 921.6K bps. The 2106 is powered by a host system USB port.
Sealevel SeaCOM USB software drivers and utilities make installation and operation easy using Windows
and Linux operating systems. After installing the software, simply plug the 2106 into an available USB port
and the serial port is recognized as a standard COM port by the host system enabling compatibility with
legacy software.
The overall adapter is 60 inches long and fully shielded to protect the 2106 from RF and EMI interference
that is common in mobile and industrial environments. Standard operating temperature range is 0 - +70°C,
and extended temperature range (-40 - +85°C) is optional.
Features
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Compliant with RoHS and WEEE directives
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High speed UART with 128-byte Tx FIFO and 384-byte Rx FIFO
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Data rates from 300 bps to 921.6K bps
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Rugged construction using molded connectors
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Powered by USB connection
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Sealevel software supports Windows 98SE/ME/2000/XP/Vista/Windows 7 and Linux
operating systems
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DB-9M connector
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Hot-pluggable device
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Does not require opening the case
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No system resources are required (i.e., I/O ports or IRQs)
