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I N S T A L L A T I O N a n d P O W E R
page 1 – 6
220 / March 2000
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.
NOTE dual failsafe supplies have their outputs trimmed to entirely
different settings than stand-alone single units, and are MEANT to be
run in tandem.
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 220 console mainframe is properly placed and
grounded, and its PSC-D340 power supply correctly rackmounted and
connected to the console, you may now energize the PSC-D340
rackmount power supply by plugging it into the AC mains and turning
it on, using its front panel circuit breaker/switch. The five 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
Once you have verified proper power-up, turn off the rackmount
Once you have verified proper power-up, turn off the rackmount
Once you have verified proper power-up, turn off the rackmount
Once you have verified proper power-up, turn off the rackmount
power supply to de-energize the console. You may now proceed to
power supply to de-energize the console. You may now proceed to
power supply to de-energize the console. You may now proceed to
power supply to de-energize the console. You may now proceed to
power supply to de-energize the console. You may now proceed to
wire up audio and control connections.
wire up audio and control connections.
wire up audio and control connections.
wire up audio and control connections.
wire up audio and control connections.
220 / June 2001