Grass Valley NV8500 Series v.3.5 - Manual (Page 138)

122
Power
Overview of Power
NV8144
The NV8144 requires one internal PS8100 power supply. (It might have a redundant power
supply as well, but only one power supply is in use at a time.) Figure 8-2 shows the power supply
branches for each part of the NV8144, as viewed from the front.
Fig. 8-2: NV8144 Power Supply Branches (Front View)
NV8140
The NV8140 requires one internal PS8300 power supply. (It might have a redundant power
supply as well, but only one power supply is in use at a time.) Figure 8-3 shows the power supply
branches for each part of the NV8140, as viewed from the front.
Fig. 8-3: NV8140 Power Supply Branches (Front View)
OUTPUTS
1–144
(8 cards)
SEC.
C
ONTROL
FAN
INPUTS
73–144
(8 cards)
MONIT
OR
PRIM.
C
ONTROL
XPT
Branch 5
Branch 5
B3 B3 B3
Branch 4
INPUTS
1–72
(8 cards)
Branch 4
XPT
Branch 3
Branch 2
Branch 3 Branch 1
B2 B2
Fans (5)
SEC.
C
ONTROL
FAN
PRIM.
C
ONTROL
Branch 5
Branch 4
B3 B3 B3
Branch 2
XPT
Branch 3 B1
Branch 1
B4 B4
Fans (5) OUTPUTS
1–288
(16 cards)
INPUTS
1–144
(8 cards)
RED
. XPT
XPT
Branch 5
B2 B3
Branch 2