Grass Valley NV8500 Series v.3.5 - Manual (Page 139)

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NV8500 Series
User’s Guide
NV8280
The NV8280 requires one NV8300 power supply frame and two primary PS8300 power supply
modules (and two additional modules for redundancy). The primary power supply modules are
labeled PS 1 and PS 3; the redundant power supply modules are PS 2 and PS 4.
Fig. 8-4: Power supply module locations in a NV8300
Figure 8-5 shows the power supply branches for each part of the NV8280, as viewed from the
front.
Fig. 8-5: NV8280 Power Supply Branches (Front View)
PS 1 — Primary PS 2 — Redundant for PS 1
PS 3 — Primary PS 4 — Redundant for PS 3
FAN
INPUTS
1–72
(8 cards)
INPUT
S 1–144
INPUT MONIT
OR
OUTPUTS
145–288
(8 cards)
OUTPUTS
289–432
(8 cards)
OUTPUTS
433–576
(8 cards)
OUTPUT MONIT
OR
INPUTS
145–216
(8 cards)
OUTPUTS 1–288 OUTPUTS 289–576
SEC. CONTROL PRIM. CONTROL
INPUT
S 1–144
INPUT
S 145–288
INPUT
S 145–288
INPUT
S 1–144
INPUT
S 1–144
INPUT
S 145–288
INPUT
S 145–288
REDUNDANT CROSSPOINT
OUTPUTS
1–144
(8 cards)
INPUTS
73–144
(8 cards)
INPUTS
217–288
(8 cards)
PS 1, Branch 1 PS 3, Branch 1
PS 1, Branch 3
PS 1, Branch 2
PS 1
Branch 2
PS 1, Branch 5
PS 3, Branch 5
PS 1
Branch 3
PS 3
Branch 3
PS 3
Branch 2
PS 1
Branch 5
PS 3
Branch 5
PS 1
Branch 4
PS 3
Branch 4
PS 1, Branch 4 PS 3, Branch 4
PS1
B5
PS3
B5
PS1
B5
PS3
B5
PS3
B5
Fans (5)
Crosspoints