Instruction manual

UltraLink 2 DVI Installation and Operation Manual 9
When DIP Switch 1 is OFF (default position), the unit draws power from the host computer or switch through
the USB connections. Both USB connections are necessary for the unit to draw sufficient power. The second
USB connection is also required if Virtual Media is to be enabled on the UL2-DVI.
Figure 7. UL2-DVI draws power from 2 USB connections
For Power Over USB and Virtual Media Support For UL2-DVI
 Connecting to a host computer: Use the second supplied USB cable to connect the USB Type B connector
labeled VM on the unit to a USB Type A port on the host computer.
 Connecting to a KVM switch: Use the second supplied USB cable to connect the USB Type B connector
labeled VM on the unit to a USB Type A port on the switch, sometimes labeled USB 1 or USB 2. Either one
may be used.
If DIP Switch 1 is placed in the ON position, power is drawn from the optional AC power adapter. This
approach is used if the Virtual Media option is to be disabled on the unit.
Figure 8. UL2-DVI draws power from Ac power adapter
For Power from AC Adapter
 Connect the optional power adapter to the 3.5 mm barrel jack labeled Power, and connect the adapter to
the AC mains.
Note: The unit will always draw power from the source indicated by DIP Switch 1. If DIP Switch 1 is off and
both USB ports are not connected to a host computer, the unit will not have sufficient power even if the
optional power adapter is connected. The reverse is true when DIP Switch 1 is in the ON position.
Note: In this manual, the term “host computer” refers to either a computer connected directly to the UL2-DVI,
or to the currently active computer from a bank of computers on a KVM switch, unless otherwise specifically
noted.