Hitachi GR2000 Series Installation Manual page 67

FAN3
FAN1
RS-232C
connector
(for AUX)
None in
case of
RMB-CPU
FAN2
FAN0
Figure 2-14 Rear View of GR2000-20H with DC Input
GR2K-GA-1002
Rev 6.03
Placement of RM-CPU and RP
boards, and power supply units:
RP RP RP RP RP RM-
CPU
9 8 7 6 5
1
DC-DC DC-DC DC-DC
5 4 3
Placement of fans in fan tray (top view):
(front)
Fan 2
(power)
Fan 1
(power)
(rear)
FAN3
Upper fan tray
Product Overview
RP RP RP RP RP
RM-
CPU
4 3 2 1 0
0
DC-DC DC-DC DC-DC
2 1 0
(front) (front) (front)
Fan 4 Fan 2 Fan 4
(main) (power) (main)
Fan 3 Fan 1 Fan 3
(main) (power) (main)
(rear) (rear) (rear)
FAN1 FAN2 FAN0
Lower fan tray
2-11