VeriFone MX800 Series Installation Manual page 4

Determining the COM Port That the USB Device is Using
1. In Windows select Start and right click on My
Computer then select Manage.
2. When at Computer Management select Device
Manager and then the + that is to the left of
Ports (COM & LPT).
3. We want to verify that the Mx800 Family
Terminal (COM9) is there and that it says
COM9. COM9 is what the pinpad must be set
to.
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