Grass Valley NV8500 Series v.3.5 - Manual (Page 180)

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IP Gateway Cards
Summary
Usage
At present, the IP gateway cards are restricted in use: they provide ports for tielines only.
That means that IP gateway cards communicate signals from the output of one NV8500 hybrid
router to the input of another NV8500 hybrid router (or possibly the same router).
It is possible to connect an IP gateway output to an input directly or through a 10GE switch.
Usage Notes
IP gateway input cards receive up to 8 video streams over three 10GE Ethernet connections. IP
gateway output cards transmit up to 8 video streams over three 10GE Ethernet connections.
Video streams are mapped into to the router port numbering using the IP gateway card’s
internal browser application.
The range of video ports for any IP gateway input card is the same as for the disembedder cards.
The range of ports for any IP gateway output card is the same as for the embedder card.
However, only the first 8 ports are used; the other ports (9–18) are ignored (at this revision of the
IP card).
There are no IP gateway input cards for the NV8140. There are no IP gateway expansion output
cards (for the NV8576-Plus).
 At present, IP gateway cards, input or output, can be used only for tielines.
IP Gateway Backplanes
IP gateway backplane modules use 2-port SFP connectors. One of the ports is receive (or input)
and the other is transmit (or output):
Fig. 11-1: SFP Connectors, in Upper Bays
In the NV8144, NV8280, and in the upper bays of the NV8576, SFP 1 carries video channels 1–3.
SFP 2 carries video channels 4–6. SFP 3 carries video channels 7 and 8.
Input
Output
SFP
1
2
3
SFP
n+1
n+2
Video
Ports
n+3
n+4
n+5
n+6
n+7
n+8