©Sealevel Systems, Inc.
2107 Manual
5
SL9218 05/2011
Product Description
The Sealevel Systems 485-DB9 serial interface adapter provides the PC with a single USB to RS-485
asynchronous serial port providing a versatile interface for common RS-485 needs. The 485
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-485 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 such as GPS navigation systems, barcode readers, signature input
devices, serial printers, scales, and similar applications.
The 2107 features programmable baud rate and data formats with 128-byte transmit and 256-byte receive
buffers. The USB serial adapter is compatible with all standard PC baud rates and supports high-speed
communication to 921.6K bps. The 2107 is powered by the USB port and status LEDs molded into the
enclosure indicate serial data activity and connection to the host.
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 2107 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 attached cable is 44 inches long and fully shielded to protect the 2107 from RF and EMI interference
that is common in mobile and industrial environments. Standard operating temperature range is -40° -
+75°C.
Compliant with RoHS and WEEE directives
High-speed UART with 128-byte Tx FIFO and
384-byte Rx FIFO
Data rates to 921.6K bps
All modem control signals implemented
Powered by USB connection
DB9M connector
