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VS482 User Manual
34
Preparation
To prepare for the firmware upgrade, do the following:
1. Use an RS-232 cable to connect a COM port on your computer to the RS-
232 Serial Port of your VS482.
2. Unplug the VS482’s power adapter.
3. Hold-down front panel pushbutton 1 and plug the power adapter into the
VS482 to power the unit.
4. If successful, the port 1 LED will start flashing and you can start the
upgrade process as explained on the next page.