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Section 2 — Installation
Signal Processor Frame Power Supply Installation
The Primary Power Supply must be mounted immediately below the Signal
Processor Frame in the rack. If you are installing an optional Redundant Power
Supply, it must be located immediately below the Primary Power Supply. Verify
that you have allowed enough rack space (7 rack units for each supply) before
proceeding.
WARNING
To reduce the risk of electric shock, do not perform any servicing other than
that contained in the operating instructions unless you are qualified to do so.
NOTE:
Information about the Jetta Power Suplies (found only in the Model 4000-3) is
found in Addendem A in this manual.
Frame Power Supply Assemblies
Each Signal Processor Power Supply assembly for a Model 4000 Switcher consists
of a rack-mounted frame (assembly number 098901-XX) containing a Multi-
Output Power Supply unit and a high-c5 Volt Power Supply unit. The
assembly number of the power supply frame is noted on the back of the frame.
Grass Valley assembles and tests the power supplies; however, the individual
power units in the power supplies are manufactured by other suppliers.
There are two suppliers of the individual power supply units—Pioneer Magnetics
and Todd Products Corporation. Differences between the units and important
notes about them will be presented here for ease of installation.
It is important to know what type of power units you have for the reasons listed
below:
1.
Because of differences in the electronic design, it is not possible to operate
Pioneer and Todd power units of the same type in a redundant power supply
configuration. In other words, you may not connect a Pioneer Multi-Output
unit in parallel with a Todd Multi-Output unit, and you may not connect a
P5 Volt unit in parallel with a Todd +5 Volt unit. This will be explained
in more detail in the section describing installation of redundant supplies.
2.
A Model 4000-2A/B switcher with Todd power supply units may operate on
110VAC. Pioneer supply units must always operate on 220VAC.
3.
Todd +5V power supply units are internally wired for power surge protection,
P5V power supply units are not. There is a jumper in the Model 4000
fan assembly at the top of the Signal Processor Frame which must be set to
either bypass or enable a surge protection circuit depending on the type of unit
present. Refer to the “Fan Jumper Settings” heading later in this section.
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 ...
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Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...