Grass Valley SHED Jan 16 2015 - Manual (Page 13)

9
SHED and HDX Features
This chapter presents the features of the SHED and HDX system, including a
Troubleshooting section and a maintenance section.
System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
HDX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
HDX Faceplate Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Compatible Camera Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SHED-BS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SHED-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
A Note About Fiber Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
System Operation
Since the HDX does the job of actually powering the camera head, the majority of its
purpose is to produce the high voltages required by today's HD camera and large zoom
lens systems. The remaining purpose is to sense the type of camera system that is attached,
and then proceed through the proper start-up sequence that safely provides the
appropriate voltages.
Since the optical portions of SHED and HDX systems are passive, the maximum distances
that can be achieved are determined by the optics in your camera system. As most HD
camera systems on the market today have optical budgets of around 12-14db, it is
reasonable to assume that with ideal fiber and minimal connector losses, theoretical
distances of 20km can be realized. Single mode fiber is mandatory.
Once powered up, an HDX with multiple-camera support will attempt to recognize what it
is attached to. The HDX product line is designed to work with:
• Sony 750 and 950 HD Camera systems
• Ikegami HD Camera systems
• Power Plus (see CopperHead manual for details)
• Grass Valley LDK-6000 and -8000 series
• Panasonic 931B, 3500 and 3800
• Hitachi HD1000 andHD5000
See Compatible Camera Systems on page 11 for a complete list of supported camera
systems.
Use of the HDX with any other equipment will result with an error condition indicated by
ERR on the HDX 4-segment display. As long as an error condition is detected, no high
voltage will be enabled.