TX2550 M4 Upgrade and Maintenance Manual 81
Basic hardware procedures
4.6 Connecting the power cord
V CAUTION!
The server supports a mains voltage in the range of 100 V to 240 V. You
may only operate the server if its rated voltage range corresponds to the
local mains voltage.
I For 800 W Titanium PSU:
Mains input voltage range: 200 V – 240 V
Ê Connect the power cords to the PSUs.
Ê If applicable, connect the mains plugs to power outlets of the rack socket
strip.
I To provide true phase redundancy, the second PSU should be
connected to a different AC power source from the other PSU. If one
AC power source should fail, the server will still continue to run.
Ê Ensure that the status indicator on the PSU is lit green (see section
"Indicators on PSUs (slide-in units)" on page 512).
Figure 34: Example: Locking the cable clamp of a PSU
Ê Pull the cable clamp up (1).
Ê Thread the power cord through the cable clamp (2).
Ê Press the cable clamp down until it engages to secure the cable (3).
I It will take about 60 seconds until the server can be powered on.
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