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Part# 2123-OEM

(SeaLINK.SC OEM)

USB to 1-Port RS-232, RS-422, RS-485 (Software Configurable) DB9 Serial Interface Adapter


$99.00


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The SeaLINK® 2123-OEM serial interface adapter provides one software configurable RS-232, RS-422, or RS-485 port via an internal USB connection. All configuration and electrical interface selections are handled through the driver, eliminating the need to open the enclosure to set jumpers or switches. The serial port is software configurable for RS-232, RS-422, and RS-485 with the electrical interface settings maintained locally.

Sealevel SeaCOM USB software drivers and utilities make installation and operation easy using Microsoft Windows operating systems. After installing the software, simply connect the 2123-OEM to an internal USB header connector, and then boot the system. The serial port is recognized as a standard COM port 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 921.6K bps. Status LEDs on the board indicate power, serial data activity, and electrical interface.

The 2123-OEM is USB bus powered, so no external power supply is needed. A 2mm 4-pin Molex vertical header provides an internal USB connection to your host system. For EBX and larger motherboards with a 0.1 onboard USB header, order the CA260 internal USB cable. For smaller motherboards with a 2mm onboard USB header, order the CA383 internal USB cable. Standard operating temperature range of SeaLINK adapters is 0C to +70C and extended temperature range (-40C to +85C) is optional.
Host Interface(s) USB
# of Ports 1
Brand/Family SeaLINK
Electrical Interface RS-232, RS-422, RS-485
USB Powered Yes
Software Configurable Yes
OEM Yes
RoHS Compliant Yes
Serial Connector(s) DB9M
Communications Chip USB/UART
Max Data Rate 921.6K bps
Max Data Distance 50 feet (RS-232)
4000 feet (RS-485)
Power Requirement +5V @ 200mA
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 2.9 (L) x 2.5 (W) x 0.6 (H)
  • • Compliant with RoHS and WEEE directives
  • • Serial port software configurable for RS-232, RS-422, or RS-485
  • • Electrical interface settings are maintained across multiple computers
  • • High speed UART with 128-byte Tx FIFO and 384-byte Rx FIFO
  • • Supports data rates to 921.6K bps
  • • Automatic RS-485 enable/disable
  • • Status LEDs display electrical interface selection and serial data activity
  • • Power LED displays connection to host
  • • Powered by USB connection
  • • Single DB9M connector with full modem control signals implemented in RS-232 mode
  • • Sealevel SeaCOM software supports Windows 98SE/ME/2000/XP and Vista operating systems
  • • Uses Molex 4-pin vertical 2mm locking header for USB connection (Mating connector Molex# 35507-0400)






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