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Section 3 — Functional Description
Power Supply Description
Power to the Control Panel and Signal Processing Frame is supplied by separate
power supplies.
Control Panel
In a non-redundant configuration, the Control Panel contains one power supply
that converts 110 VAC or 220 VAC (auto-ranging) to the internal DC voltages
required.
In the optional redundant configuration, an additional power supply is housed in
the Control Panel tub that converts 110 VAC or 220 VAC (auto-ranging) to the
internal DC voltages required.
Signal Processing Frame
The standard Frame power supply is contained in a single 19-inch rack- mounted
chassis installed below the Signal Processor Frame. It is configured for 220 VAC.
An optional redundant Frame power supply is also available to supply backup
power in case the primary frame supply should fail. In the redundant
configuration, the two supplies are current-sharing, so no switch over is required
in the event that one should fail.
The standard and optional redundant power supplies are both 19 inch rack
mounted chassis that are 12.5 inches high and 20 inches deep. Each chassis is slide
mounted for ease of installation. Internal fans in the power supply chassis provide
cooling.
Frame power supply status can be checked by viewing LED indicators on the front
of the chassis (a secondary set of LEDs is mounted in the rear of the chassis behind
the left hand perforated cover). Power Supply status is monitored by a readback
latch on the Controller module and can be read by the operator from a status
screen on the flat panel display.
Frame power supply connections are located on the rear of the frame.
To summarize a fully redundant configuration, the switcher has two 19-inch
power supply chassis instead of one. Additionally, the Control Panel has two sets
of power supplies internally in the tub, instead of one.
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...