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CHAPTER 8: Troubleshooting
8.1.5 P
OWER
I don’t need to use a keyboard in my application, but the Extender doesn’t work at all unless I
have a keyboard line running from the Local Unit to the PC.
The Extender’s Local Unit normally operates using the 5 volts of DC power that
the attached CPU or KVM switch supplies on its keyboard port. Even if you’re not
using a keyboard at either the local or remote user station, you should run a cable
from the Local Unit’s CPU-port keyboard connector to the keyboard port of the
CPU or KVM switch in order to power the Local Unit. If this is not possible, call
Black Box Technical Support about getting an alternative power supply for the
Local Unit.