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Power Supply Units
The power supply unit transforms input AC power from a power socket to DC power and supplies power to each
component.
Four units are installed in a frontend enclosure.
Figure 15 Power Supply Unit (Frontend Enclosure)
1 Inlet
This inlet is used to connect a power cord.
The states of LEDs are listed below.
Table 12 Status and Meaning of Each LED (Power Supply Unit)
LED name LED status Meaning
POWER
(green)
AC power is supplied to the power supply unit.
FAULT
(amber)
The power supply unit is in error status.
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Frontend Routers (FRT)
A route switch used for connecting between controllers. Four units are installed in a frontend enclosure.
An FRT connects to a maximum of eight controllers.
Figure 16 Frontend Routers
CM#0
CM#1
1
1
#0 #1 #2 #3
#0 #1 #2 #3
1 CM ports (CM#0, CM#1)
This port is used to connect SVCs and CMs.
A. Component Names
Frontend Enclosures (ETERNUS DX900 S5)
90 Operation Guide (Basic)