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3. Connecting the RGB Extender
3.1 Fiber Cable
Fiber optic cable must run between the location of the Transmitter unit (near your CPU) and the
Receiver unit (near your desktop devices). The standard multi-mode fiber optic cable must be
50 micron, terminated with an SC, ST or LC type fiber optic connector and no longer than 3280
to
running feet (1000 meters). Be careful not
kink or pinch the fiber optic cable as it is being
installed, and keep all bend radii to no less than 3 inches (76.2mm). Please refer to the Quick
Start Guide included in Appendix A on page 33.
3.2 RGB Video Extender Transmitter
If a DVI-A connection from the source is required, standard adapters are available from
Thinklogical and third party suppliers to make other combinations. (See Table 3)
FIGURE 7: Velocity RGB-9 Transmitter
The CPU and the TX Connector
Video connections to the CPU are made between the video output card of the CPU and the TX
VGA connector labeled "FROM CPU" (closest to fiber connectors). The additional video
connector is for a local administrator to view the video output at the TX unit.
The analog VGA inputs are converted to a fiber optic suitable form and transmitted to the RX
unit.
Modifying the Analog RGB Video Parameters
It is possible for one resolution to have different video timings, which could cause a less than
perfect display on the remote side. For example, take 1280x1024x60 Hz. The VESA standard
has 1688 pixels in one line, whereas a SGI format has 1680 pixels. The transmitter lookup table
is configured for the VESA standard, but can be easily modified to support the SGI format.
(Refer to Section 7.2.6 for step by step instructions.)
10
JUNE 2009
REVISION B
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