HP Point of Sale (POS) Peripherals Configuration Guide

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The following is an example of the prompt screens that will appear when COM1 is enabled.
The following prompt appears when the “Disable Power” option is clicked:
5. After the COM port setting is changed, restart Windows operating system for the BIOS
changes to take effect.
Note: The ap5000 VFD cannot be installed on COM3, it only be used on COM1 or COM2.