Configuring Power to a Serial Port
The serial ports on the HP Point of Sale System computer can be configured as standard (non-powered)
serial ports or powered serial ports. Some Point of Sale devices use a powered serial port. If the serial
port is configured as a powered port, devices that support a powered serial interface do not require an
external power source.
NOTE: The computer ships with all serial ports configured in standard serial mode.
Power to the ports can be configured by moving jumpers and serial port jumper wires on the serial port
headers. The computer ships with a jumper on each serial port header. Jumper wires are available as
an option from HP or an authorized HP provider.
Figure 7-32 Serial Port Jumper Wire
1. Prepare the computer for disassembly (Preparation for Disassembly on page 61).
2. Remove the computer cover (
Computer Cover on page 64).
3. Press the latch release on the front of the power supply (1), and then raise the power supply to the
upright position (2)
Figure 7-33 Releasing and Rotating the Power Supply
ENWW Powered Serial Ports 87
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