Rohde & Schwarz VENICE S, Руководство пользователя

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Maintenance

Replacing a Power Supply Unit
97 VENICE S | User Manual | 2906.1345.02 - 02
Rohde & Schwarz GmbH & Co. KG
Replacing a Power Supply Unit
Requirements:

Follow the safety guidelines listed in chapter “Safety Instructions”
on page 90 and chapter “Safety” on page 9.

If installed, remove the front plate as described in chapter “Remo-
ving the Front Plate” on page 92.

If applicable, remove the system from the rack.

Verify that both PSUs are of the same type and have the same
maximum output power, that is listed on the PSU label (shown in
watts).
PSU Mismatch Conditions
Mixing PSUs from previous generations of
systems can result in a PSU mismatch
condition or failure to turn on.
If two PSUs are used, they must be of
the same maximum output power.
For AC PSUs, use only PSUs with the
Extended Power Performance (EPP)
label on the back.
Data Loss
The system needs one power supply for
normal operation.
On power-redundant systems, remove
and replace only one power supply at a
time in a system that is powered on.
You may have to unlatch and lift the optional cable man-
agement arm if it interferes with power supply removal.