Instruction Manual
  Introduction 
Sealevel Systems SeaLINK+232 Page 1 
Introduction 
Overview 
The Sealevel Systems SeaLINK+232 equips the PC with 1 USB to RS-232 Asynchronous serial port providing a 
versatile interface for common RS-232 needs (i.e. modem, mouse and plotter). The advantage of this product over 
more traditional approaches is that it doesn’t require opening the computer case, nor does it require resources such 
as I/O ports or IRQs. It does require a system that supports USB both in terms of hardware and operating system. 
What’s Included 
The SeaLINK+232 is shipped with the following items. If any of these items is missing or damaged, contact the 
supplier. 
•  SeaLINK+232 USB to RS-232 Serial I/O Adapter 
•  USB Cable Part Number CA179 for Connecting to Upstream Host/Hub 
•  Sealevel Software 
•  User Manual 










