User`s manual
UPort 2000 Series User’s Manual Driver Installation
Fixed-base COM Mode
Moxa’s UPort 2000 series provides a unique fixed-base COM function that allows users to set a
specific initial COM port number. Regardless of which UPort is plugged into the host, the COM
port numbers for the UPort’s serial ports will be numbered sequentially starting with the initial
COM port number.
To use “Fixed-base COM Mode,” be sure to check the “Enable Fixed-base COM Mode” check
box.
“Fixed-base COM Mode” allows users to specify which COM number will be assigned first. In
addition, COM numbers are assigned sequentially, and are not tied to specific UPort converters.
For example, assume that you have set COM10 as the first COM number that will be assigned. If
UPort D1 is plugged into your computer first, your computer will assign COM10 and COM11 to
the UPort’s serial ports. When UPort D2 is plugged in, the computer will assign COM numbers
COM12 and COM13.
(D1)
(D2)
COM10-COM11
1
COM12-COM132
2-18