INSTALLATION and POWER
page 1 – 6
R-55 / Mar 2003
Failsafe Dual Redundant Supply
Wheatstone failsafe power supply systems use two separate rack-
mount power supplies for each piece of powered equipment. Though
either is capable of running a full load on its own, in failsafe operation
both units run in tandem: if one fails, the other takes over, assuring
uninterrupted operation.
In order for failsafe systems to perform as designed, always have
BOTH rackmount supplies powered up and connected to their associ-
ated equipment.
Energizing
Assuming the R-55 console mainframe is properly placed and
grounded, and its PS-6040 power supply correctly rackmounted and
connected to the console, you may now energize the PS-6040 rackmount
power supply by plugging it into the AC mains. The four LEDs on the
power supply front panel should light up to indicate the presence of
their respective voltages. The console's VU meters will illuminate and
individual module switches will assume factory default settings.
Once you have verified proper power-up, turn off the rackmount powerOnce you have verified proper power-up, turn off the rackmount power
Once you have verified proper power-up, turn off the rackmount powerOnce you have verified proper power-up, turn off the rackmount power
Once you have verified proper power-up, turn off the rackmount power
supply to de-energize the console. You may now proceed to wire upsupply to de-energize the console. You may now proceed to wire up
supply to de-energize the console. You may now proceed to wire upsupply to de-energize the console. You may now proceed to wire up
supply to de-energize the console. You may now proceed to wire up
audio and control connections.audio and control connections.
audio and control connections.audio and control connections.
audio and control connections.
Audio and Control Wiring
All audio and control I/O connections to the R-55 console are made
through multipin DB-25 connectors located on the top of each module.
The output module also has a DB-9 connector. The factory supplied
hand crimping tool is used for all I/O wiring connections to and from
the console (see instruction on page 1-8).
Connection Procedures
As supplied from the factory, the console requires no logic connec-
tions to function. Therefore an orderly installation begins with the
audio wiring. Note this manual is organized by module type (inputs,
outputs, monitor modules, etc.); each chapter contains detailed wiring
instructions for its module type. Proceed through the manual, chapter
by chapter, until all modules have been wired to suit your particular
installation requirements. Once proper audio operation is verified, go
back to each individual chapter and proceed with control wiring.
Unbalanced Connections (analog audio)
ANALOG INPUTS — Wire to the console with typical shielded
two conductor cable (like Belden 9451), just as if you were connecting
a balanced source. At the unbalanced source machine’s output, connect
the black wire (LOW) to the shield. If the machine has a -10 dBu output,
don’t hesitate to turn module input gain as high as is needed.
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