Classic swb switching configurations, Standard swb switching configurations, Module slots and rear connectors – Grass Valley NV5128 v.2.5 User Manual
Page 19: Introduction
NV5128 Multi-Format Router • User’s Guide
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2. Introduction
Module Slots and Rear Connectors
Classic SWB Switching Configurations
The Classic SWB card set is composed of two cards connected together that occupy two card slots.
The card set has a 16 input x 16 output crosspoint array. A single Classic SWB card set can be used
to create a 16 input x 16 output switching matrix, or a pair of card sets can be coupled together to
create a 32 input x 32 output matrix. The 32 input x 32 output configuration feeds the 16 inputs
from one Classic SWB card set to the second Classic SWB card set and vice versa.
When creating a 32 input x 32 output matrix, the Classic SWB cards must be installed in specific
router slots. For installation instructions, see
Installing Classic SWB Backplanes
more information about the card architecture, see
Standard SWB Switching Configurations
There are two types of Standard SWB output cards: a main card with a “wing” and optional expan-
sion cards that mate with the wing on the main card. The output cards occupy four contiguous slots.
By installing the main card and up to three expansion cards, different crosspoint matrices can be
created. Because the main output card receives all 128 SWB inputs, switching configurations can
start at 16 inputs x 16 outputs, increasing in increments of 16 up to 128 inputs by 64 outputs. A sec-
ond set of Standard SWB main output cards and expansion output cards can be installed, increasing
the switching configuration to 128 inputs x 128 outputs.
The Standard SWB cards must be installed in specific router slots. For installation instructions, see
Installing Other Video, Audio and Time-Code Backplanes
on page 43. For more information about
Machine Control Switching Configurations
The machine control card set is composed of two cards connected together that occupy two card
slots. The machine control card set is bidirectional; it carries signals in both directions (input and
output).
A single machine control card set can support 32 ports. If a second machine control card set is
installed and combined with the first card set, the configuration can be doubled to 64 ports.
The Machine Control cards must be installed in specific router slots. For installation instructions,
see
Installing Machine Control Backplanes
on page 42. For more information about the card archi-
Module Slots and Rear Connectors
The NV5128 has slots for input cards, output cards, and control cards. Cards are installed through
the front of the frame for easy access and are “hot swappable”. The rear of the router is a back plate
into which backplanes housing connectors for receiving and distributing signals are installed. The
back plate also contains connections to system functions, such as a router control system, alarms or
reference signals.
Active circuitry is contained mainly on the input cards, output cards, control cards, power supply
modules, and fan tray installed through the router’s front. However, some active circuitry for SD
and HD signals are located on the associated backplanes, which are installed through the router’s
rear. All cards and backplanes are “hot-swappable.”