![background image](http://html.mh-extra.com/html/fujitsu/primergy-bx900-s2/primergy-bx900-s2_upgrade-and-maintenance-manual_121016050.webp)
50
Upgrade and Maintenance Manual
BX900
S2
Basic hardware procedures
©
c
og
ni
ta
s.
Ge
se
lls
ch
ft f
ür T
ec
hn
ik
-Dok
u
m
ent
at
ion m
b
H 20
11
P
fad
: C
:\P
ro
gr
am
m
e\
F
C
T
\ti
m
_
app
\ti
m
_
loc
al
\w
o
rk
\WA
LT
E
R
\O
B
J_D
OK
U
-13
65
4-
00
1.
fm
4.4
Connecting the system unit to the mains
The system unit has six bays for hot-swap power supply units (PSUs). In the
base configuration, it is fitted with three PSUs.
V
CAUTION!
●
Read the information on determining how many PSUs are required
(see
"Power supply" on page 85
).
●
The PSUs automatically adjust to a mains voltage between 100 VAC
to 240 VAC. The system unit may only be used if the local mains
voltage is within the voltage range of the system.
●
The 2880 W PSUs may only be connected to 16 A power outlets, a
UPS, a 32 A power distribution unit, or CEE sockets. When ordering
the system unit, you must specify which socket type is available at the
installation location, so that the cables with the appropriate C19
connectors can be supplied.
●
For the Japanese market:
The standard power supply units (Japanese version) may only be
connected to NEMA L6-20, IEC 60320-C20, or NEMA 5-15 sockets.
The HE power supply units may only be connected to NEMA L6-20
or IEC 60320-C20 sockets.
●
Always connect the cable first to the PSU and then to the mains.
Ê
First connect the insulated C19 connectors of the power cables to the PSUs
of the system unit, and then plug the connectors into the UPS, power
distribution unit or external sockets.
Ê
Ensure that the status indicator on the PSU module is lit green.
I
For more information see section
"Indicators on the hot-plug power
supply units" on page 186
.