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Sealevel 2803 USB to 8-Port RS-232, RS-422, RS-485 DB9 Serial Interface Adapter

Sealevel 2803 USB to 8-Port RS-232, RS-422, RS-485 DB9 Serial Interface Adapter

Price on request

  • 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

Sealevel 2803 USB to 8-Port RS-232, RS-422, RS-485 DB9 Serial Interface Adapter

The Sealevel 2803 USB serial I/O adapter provides eight RS-232, RS-422, or RS-485 serial ports for USB connectivity to legacy or non-USB compliant devices. Each serial port can be individually configured via dipswitches located inside the enclosure.

The Sealevel 2803 is housed in a rugged metal enclosure making it ideal for rugged and industrial environments. The adapter integrates Sealevel’s SeaLATCH locking USB port, which is fully compatible with standard USB cables. When used with the included USB cable with a locking type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection. Additionally, the high-retention type B connector helps prevent unintentional separation from a standard USB cable.

Sealevel SeaCOM USB software drivers and utilities make installation and operation easy using Microsoft Windows and Linux operating systems. After installing the software, simply plug the 2803 into an available USB port. The serial ports are recognized as standard COM ports by the host system enabling compatibility with legacy software.

All Sealevel SeaLINK USB serial adapters use a state-machine architecture that greatly reduces the host computer’s overhead when communicating over multiple serial ports simultaneously while supporting data rates to 460.8K bps. Status LEDs on the front of the enclosure indicate power and serial data activity on each port.

Standard operating temperature range is 0°C to 70°C and extended temperature range (-40°C to 85°C) is optional.

Features

  • 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’s SeaLATCH locking USB port provides secure connection with SeaLATCH USB cables via metal thumbscrews
  • Sealevel software supports Windows and Linux operating systems
  • DB-9M connectors
  • Includes 6′ USB type A to SeaLATCH USB type B device cable (Item# CA356)

Specifications

Family SeaLINK
Communications Chip USB/UART
Dimensions 8.7″ (L) x 6.1″ (W) x 2.0″ (H)
Electrical Interface RS-232, RS-422, RS-485
High Retention USB Yes
Humidity Range 10 – 90% Relative Humidity, Non-Condensing
Host Interface(s) USB
Max Data Distance 4000 feet
Max Data Rate 921.6K bps
Operating Temperature 0°C to 70°C (32°F to 158°F)
# of Ports 8
Power Requirement +5V @ 500mA
RoHS Compliant Yes
SeaLATCH Locking USB Yes
Serial Connector(s) DB9M
Storage Temperature -50°C to 105°C (-58°F to 221°F)
USB Powered Yes
USB Specification 1.1 Compliant2.0 Compatible

For more information: Sealevel

 

 

 

 

Sealevel 2803 USB to 8-Port RS-232, RS-422, RS-485 DB9 Serial Interface Adapter

Sealevel 2803 Datasheet

Additional information

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Sealevel

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USB Serial Adapters

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