Computer Hardware User Manual
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Chapter 1  Introduction 
The UPort 1100 Series of USB-to-serial adaptors provide an easy way to add COM ports to your 
computer. The UPort 1110 provides one RS-232 port, the UPort 1130 provides one 
RS-422/RS-485 port, and the UPort 1150 and UPort 1150I each provide one RS-232/422/485 port. 
As a plug and play USB device, the adaptors are perfect for mobile, instrumentation, and point-of 
sale applications. 
The following topics are covered in this chapter: 
 
Overview 
 
Package Checklist 
 
Product Features 
 
Product Specifications 
 
LED Indicators 
¾  Adjustable Pull High/low, Terminator Resistors for the RS-485 Port 










