GRASS VALLEY NV8500 Series, Руководство пользователя

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NV8500 Series
User’s Guide
Signal Numbering
When you are facing the rear of the router frame, where signal connections are made, signal
numbers are assigned, in increasing order, from top-to-bottom and from right-to-left.
This is true even in the NV8576 and NV8576-Plus where I/O cards and their backplanes in the
lower bays are rotated 180° from those in the upper bays.
See Figure 2-2, following.
Fig. 2-2: Connector Ordering
Also, for the NV8576 and NV8576-Plus, slot numbers increase right-to-left, in sections. The
sections are disjoint (non-contiguous). See
Slot Order for Port Numbering on page 37.
For standard routers, each input and output connector has a unique signal number assigned to
it. For standard video cards, and AES async cards, port numbering is straightforward: each
connector supports one video signal or one AES pair, as the case may be.
For hybrid routers, there are two numbering sequences, one for video signals and one for audio
signals. Keep this in mind when working with hybrid I/O cards that support both video and
audio. For hybrid video and audio, a single connector represents multiple inputs (or outputs).
Signal numbering is more complex.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
• • •
Coax inputs shown. Fiber optic and
WECO connectors are similar.
Outputs are similar, but each output
card has 18 connectors.
Expansion outputs (used by the
NV8576-Plus only) are similar and have
9 output connectors.
IP gateway cards do not have video
connectors. This ordering does apply
to IP gateway cards.