Rose electronic Crystal View - Manuel (Page 27)

INSTALLATION
CrystalView Installation and Operations Manual
21
Note: The CrystalView Video compensation system is designed to produce very
good quality Video on short to medium length cables and acceptable quality
Video over cable lengths greater than 500 feet.
Due to some Video card outputs, cable lengths, patch panels, connectors, etc.,
there may be the situation where the Video compensation cannot be suitably
adjusted using the Sharp, Bright, or JP3, JP4, and JP5 jumper settings. If this is
the case, see Appendix E. Video Compensation for a possible solution.
In some installations the location of the CPU and the location of the CrystalView
Local Unit requires a greater distance than the system is designed for (10 to 20
feet). This extra cable length from the Keyboard port on the CPU to the Local
Units Keyboard connector can cause a power loss. Since the Local Unit gets its
power from the Keyboard port on the CPU, this loss may be enough to effect the
Local Units operation. This also may occur when using a wireless Keyboard. To
correct this decrease in power, a supplemental power supply may be required on
the Local Unit Keyboard connector.
If you are connecting a Laptop computer to the Local Unit, it is recommended
that a power adaptor be used to supplement the Local Units power. Operating
the Laptop on battery power only is not recommended.
(See Appendix C. Parts and Cables)