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GS4000 Installation Guide Revision 4.00
(3) Power supply modules quantity and installation positions
The GS4000 power supply redundancy is of the type "1+1". The GS4000 uses one power
supply module as the active module and one power supply module as the standby module. For
detailed information about installation positions of power supply modules, see the table below.
Table 1.1-9
power supply redundancy
Type "1+1"
(4) LEDs (Light Emitting Diode) and Switches
The LED of a chassis indicates the action status of a fan unit, BCU , PSU and high port-
density PSU-integrated NIF.
The LED is attached to the fan unit, and the status indicated by the LED differs depending on
the type of a device or the position where the fan unit is installed.
As for the status indicated by the each LED of a chassis, see Table 1.1-10. Refer to the section
"1.3 Power Supply", "1.4 Basic Control Unit (BCU)" or "1.6 Network Interface (NIF)" for the LED
and switches of other component units.
1-20
Installation positions of power supply modules
power supply
NOT redundant
Redundant
active
POW0
○
○
standby
POW1
×
○
520-10-026-30X
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