Siemens X-400 Manuel d'utilisateur Page 23

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System Description of SCALANCE X-400
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
C79000-G8976-C186-03
23
Components of SCALANCE X-400
The following table shows the components of SCALANCE X-400:
Component Function Figure
Basic device consisting
of
Backplane
Power module
DI module
Switch CPU
Two 1000BaseTX
interfaces
Twelve 100BaseTX
interfaces
Extender interface
The power module con-
verts the 24 V input power
into the internal operating
voltage of the basic de-
vice.
There are eight digital in-
puts for feeding in exter-
nal signals.
The Switch CPU man-
ages the data traffic. The
CPU also has a serial and
an Ethernet port.
F
L 1
L 2
S I E M E N S
S C A L A N C E
X - 4 0 0
I N 1 / I N 5
D M 2
I N 2 / I N 6
I N 3 / I N 7
I N 4 / I N 8
D M 1
S T B Y
R M
X 4 1 4 - 3 E
S W I T C H C P U
S E L E C T / S E T
C V 4 9 0
C O V E R
For example SCALANCE X414-3E
Media module fiber-
optic 1000 Mbps
Expands the basic device
by two gigabit fiber-optic
ports.
P 2
M M 4 9 2 - 2
F O 2 x 1 0 0 0
P 1
For example MM492-2
Media module
100 Mbps
Expands the basic device
by two fast Ethernet fiber-
optic ports.
P 2
M M 4 9 2 - 2
F O 2 x 1 0 0 0
P 1
For example MM491-2
Twisted pair extender Expands the basic device
by eight fast Ethernet
ports with RJ-45 jacks.
EM495-8
Media module extender Expands the basic device
by four slots for fast
Ethernet media modules.
EM496-4
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