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Part# 2403

(SeaLINK+4)

USB to 4-Port RS-232, RS-422, RS-485 DB9 Serial Interface Adapter


$229.00


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The SeaLINK® 2403 USB serial I/O adapter provides four RS-232, RS-422, or RS-485 serial ports for USB connectivity to legacy or non-USB compliant devices. Each port is individually configurable for RS-232, RS-422, or RS-485.

Sealevel's SeaCOM USB software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems. After installing the software, simply connect the 2403 serial interface adapter to your USB port. The device is immediately recognized by the system. Now your non-USB peripherals can have the same connection simplicity and ease of use as USB aware peripherals.

Do you know that adapter design can impact your application? Find out how in this USB Serial performance report.
Host Interface(s) USB
# of Ports 4
Brand/Family SeaLINK
Electrical Interface RS-232, RS-422, RS-485
USB Powered Yes
High Retention USB Yes
RoHS Compliant Yes
Serial Connector(s) DB9M
Communications Chip USB/UART
Max Data Rate 921.6K bps
Max Data Distance 4000 feet
Power Requirement +5V @ 500mA
USB Specification 1.1 Compliant
2.0 Compatible
Operating Temperature 0 - +70C
Storage Temperature -50 - +105C
Humidity Range 10 - 90% Relative Humidity, Non-Condensing
Dimensions 7.1 (L) x 5.3 (W) x 1.5 (H)
  • • Compliant with RoHS and WEEE directives
  • • Each port individually configurable for RS-232, RS-422, or RS-485
  • • High speed UART with 128-byte Tx FIFO and 384-byte Rx FIFO
  • • Data rates to 921.6K bps
  • • Automatic RS-485 enable/disable
  • • Serial and USB activity LEDs
  • • Hot-swappable
  • • Powered by USB connection
  • • Sealevel SeaCOM software supports Windows and Linux operating systems
  • • DB-9M connectors
  • • Includes 6' USB device cable (Item# CA179)






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