HP 9015, Справочник по аппаратуре

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Installing an optional HP integrated USB barcode scanner on the bottom of the
display head
1. Shut down the computer properly through the operating system, then turn off any external devices.
2. Disconnect the power cord from the power outlet.
CAUTION: Regardless of the power-on state, voltage is always present on the system board as long as
the system is plugged into an active AC outlet. You must disconnect the power cord and wait
approximately 30 seconds for the power to drain to avoid damage to the internal components of the
computer.
3. Disconnect all cables from the rear I/O connectors.
4. Slide the cover on the barcode scanner down and then lift the cover up to remove it (1). Plug the barcode
scanner into the rear I/O Powered USB 12V (B) connector (2), and then secure the barcode scanner with
the screw provided (3). Replace the barcode scanner cover (4).
5. Reconnect all cables to the rear I/O connectors.
6. Reconnect the power cord and press the power button.
Installing an optional HP integrated USB barcode scanner, magnetic strip reader (MSR), biometric reader,
or webcam
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