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Operating Instructions
3
!
Caution
!
Caution
3-6
If the power switch is in the
Note
cord is connected to a power source, the outputs of the
Modular Chassis power supply cycle on immediately.
3. Verify that the Modular Chassis and the XR900 have been
connected to a –48Vdc or 115/230Vac input power source (as
appropriate to the installation and system configuration).
The voltage on the rating label adjacent to the power
receptacle must agree with the type of line cord and the
applied voltage.
4. Insert the key and turn the Modular Chassis power switch to
(on).
RUN
5. If the system incorporates a dual 9-slot chassis, repeat steps 3
and 4 for System B.
The fans run while power is on. The indicator LED on the
front panel of each Modular Chassis power supply
illuminates as long as the power supply remains connected to
a –48Vdc or 115/230Vac input power source and is free of
defects.
To ensure adequate cooling, all fans in the system must
be running. If any of the fans do not run, shut the system
down and correct the problem before continuing.
6. When the system is operating correctly, remove the key to
prevent tampering with the power switch.
Note
Locking the system is not required, but is
recommended to prevent accidental resetting or
powering off.
position when the line
RUN
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