DVIGear DVI-7315 - Manual (Page 6)

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4. INSTALLATION
This product consists of a Transmitter Unit and a Receiver Unit. The Transmitter
Unit must be connected to the DVI output port of the signal source (such as a PC);
whereas the Receiver Unit should be connected to the DVI port of a digital display.
The DVI signal components are routed from the Transmitter Unit to the Receiver Unit
using a single strand of fiber optic cable with SC connectors (see the picture above).
4.1 System Connection:
Connect the External AC Power Adapter to the power input jack on the Receiver
Unit. This is necessary because the Receiver Unit cannot draw power from the
monitor. The Transmitter Unit is connected to the DVI source (computer) and can
draw operating power from this device. In the event that the source cannot provide
adequate power for the Transmitter Unit, an optional External AC Power Supply is
available (part number DVI-7208-PS).