Hitachi GR4000 Series Installation Manual page 38

GR4000 Installation Guide Version 1.00 - Preliminary
NOT
E
*
(3) LED (Light Emitting Diode) and Switches
The LED of a chassis indicates the action status of a fan unit, BCU and PRU.
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 1.1-5. Refer to the
section "1.3 Power Supply Unit", "1.4 Basic Control Module (BUC)" or "1.6 Network
Interface Module (NIF)" for the LED and switches of other component units.
20
GR4000-320E (AC) requires 2 power supply units in a configuration using single
power source and 4 power supply units in a configuration using redundant power
source. The installation positions for power supply units in both cases are shown
below.
Power
supply
unit
Single
power
source
Redunda
nt
power
source
○：should be installed ×：should not be installed
NOTE: GR4000-320E (AC) requires 2 power supply units in a configuration using single
power source and 4 power supply units in a configuration using redundant
power source. The installation positions for power supply units in both cases
are shown below.
Power supply unit
Single power source
Redundant power source
POW POW
0-0 1-0
○ ×
○ ○
POW0-0 POW1-0
○ ×
○ ○
POW
0-1
○
○
POW0-1 POW1-1
○ ×
○ ○
520-10-014-20X
POW
1-1
×
○