Grass Valley NV8500 Series v.3.5 - Manual (Page 60)

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Inputs and Outputs
I/O Backplanes
Other Backplanes with SFP Modules
Fiber-optic backplane modules use 2-port SFP connectors:
Fig. 2-13: SFP Connectors
Interchangeable SFP modules fit in SFP cages on the backplane modules. The standard SFP
module has 2 ports that operate at 1310 nanometers. These are receivers on the input back-
plane modules, or transmitters on the output and expansion output backplane modules.
The output and expansion output backplane modules can also accept SFP modules whose
ports have differing wavelengths. When a backplane module is populated with such SFP
modules, it can support connection to one or more CWDM multiplexers. The CWDM multi-
plexers accept up to 18 fiber-optic signals. The signals must each have a different wavelength.
The range of wavelengths accepted is 1271
nm to 1611 nm.
SFP Modules in NV8576 Frames
Because output cards in the lower bays of the NV8576 frames are rotated 180° with respect to
the output cards in the upper bays, the orientation of SFP modules in the lower bays is likewise
rotated 180° with respect to those in the upper bays.
5 SFP modules
supporting 9
ports. The last
port of the last
module is
unused.
5 SFP modules
supporting 9
ports. The last
port of the last
module is
unused.
Output cards in
general
— and
input cards for
the NV8140
—
have 9 SFP mod-
ules supporting
18 ports.
Port
n+1
n+2
n+3
n+4
n+5
n+6
n+7
n+8
n+9
n. c.
Port
n+1
n+2
n+3
n+4
n+5
n+6
n+7
n+8
n+9
n. c.
Ports n+1
n+2
n+3
n+4
n+5
n+6
n+7
n+8
n+9
n+10
n+11
n+12
n+13
n+14
n+15
n+16
n+17
n+18
Input Cards:
Expansion Out-
put Cards:
Output Cards: