Grass Valley NV8500 Series v.3.5 - Manual (Page 75)

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NV8500 Series
User’s Guide
Making I/O Signal Connections
After backplanes are installed, cables are connected to the I/O connections using one of three
connector types and cables:
• Coax (DIN 1.0/2.3) connectors and Belden 1855A cable (or an equivalent).
• SFP connectors and fiber optic cable.
• WECO connectors and twisted pair cable.
The type of signal determines the backplane connector. Before making signal connections,
review the following:
• Disembedder input cards, embedder output cards, and disembedder/embedder output
cards (coax only)
For NV8500 routers other than the NV8140, the disembedder (input) backplane has 9 video
connectors, of which only the first 8 are used.
For the NV8140, the disembedder (input) backplane has 18 video connectors, of which the
9th and 18th are unused.
The embedder (output) backplane has 18 video connectors, of which the 9th and 18th are
unused.
The expansion output () backplane has 9 video connectors, of which only the first 8 are used.
Each video signal has up to 16 embedded audio channels.
• MADI (3Gig/TDM) cards (coax only)
For NV8500 routers other than the NV8140, the input backplane has 8 video connectors. Its
9th connector receives one MADI stream containing 64 time slots (or channels).
For the NV8140, the input backplane has 16 video connectors and two MADI connectors.
Both MADI connectors (numbered 9 and 18) receive a MADI stream containing 64 time slots
(or channels).
The output backplane has 16 video connectors and two MADI connectors. Both MADI con-
nectors (numbered 9 and 18) emit a MADI stream containing either 56 or 64 time slots (or
channels).
The expansion output backplane has 8 video connectors. Its 9th connector emits one MADI
stream containing either 56 or 64 time slots (or channels).
• IP gateway cards
Please refer to Chapter 11, IP Gateway Cards .
• AES async cards (coax or WECO)
AES backplanes have either coax connectors for unbalanced signals or WECO connectors for
balanced signals. Each connector supports one AES pair.(WECO pins are on 3.5 mm centers.)
The input backplane has 9 connectors.
The output backplane has 18 connectors.
The expansion output backplane has 9 output connectors.
 The NV8140 does not support AES async.
• Standard 3Gig fiber optic
Backplanes for fiber optic signals are composed of SFP modules each containing two LC con-
nectors. (SFP modules are sold separately.)