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SeaLINK+2/485 Kit
SeaLINK+2/485 Kit

Part# 2202-TB2

(SeaLINK+2/485 Kit)

USB to 2-Port RS-422, RS-485 DB9 Serial Interface Adapter Kit


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The 2202-TB2 kit includes two TB34 terminal blocks that simplify RS-422 and RS-485 field wiring. Each terminal block adapter includes a DB9 female connector and five screw terminals.

The SeaLINK® 2202 USB serial I/O adapter provides two RS-422 or RS-485 serial ports for USB connectivity to legacy or non-USB compliant devices. The 2202 supports standard PC data rates up to 921K bps.

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 2202 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.
Call for Price No
Host Interface(s) USB
# of Ports 2
Brand/Family SeaLINK
Electrical Interface 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-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 software supports Windows 98SE/ME/2000/XP/Vista and Linux operating systems
  • • DB-9M connectors
  • • Includes 6' USB device cable (Item# CA179)
  • • Kit includes two TB34 terminal block adapters

Terminal Block
Terminal Block


RS-422 to RS-530 Cable
RS-422 to RS-530 Cable


7-Port USB 2.0 Hub
7-Port USB 2.0 Hub


DB9F to Opto 22 DB9F
DB9F to Opto 22 DB9F


Terminal Block Kit
Terminal Block Kit


Terminal Block
Terminal Block


DB9 Serial Extension Cable
DB9 Serial Extension Cable


Modular Adapter
Modular Adapter


Terminal Block Kit
Terminal Block Kit


Proudly Made in the USA
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