GRASS VALLEY NV8500 Series, User Manual

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Glossary
has features in common with the two-channel format of AES3. Serial digital transmission over
coaxial cable or fibre-optic lines of 28, 56, or 64 channels is supported, with sampling rates of up
to 96 kHz and resolution of up to 24 bits per channel.
MRC Miranda Router Configurator. An application that configures NV8500 series routers.
NV9000-SE
Utilities An application that configures NV9000 series router control systems. This is the software with
which to specify the inputs and outputs to the router and their characteristics.
PCM Pulse Code Modulation. A digital representation of sampled analog signals.
RU Rack Unit. A standard measure or size for frames (1.75 inches).
SD Standard Definition (i.e., SD-SDI). Digital video signal rates of 143, 177, 270, 360 and 540 Mb/s.
Governed by SMPTE 259M and SMPTE 344M.
SMPTE Society of Motion Picture and Television Engineers, www.smpte.org. An international associa-
tion, based in the United States, of engineers in the motion imaging industries.
TDM Time Domain Multiplexing (TDM). TDM allows multiple signals to exist on a single cable by
placing the incoming signals alternately in a continuous stream. This allows the multiple signals
to use a significantly fewer number of connectors.
For the NV8500 routers, crosspoint cards can store and switch AES3 synchronous channels sepa-
rately for mono switching.
UL Underwriters Laboratory. An organization that develops standards and test procedures for mate-
rials, components, assemblies, tools, equipment and procedures, chiefly dealing with product
safety and utility.
Unbalanced Generally, a circuit that has one side grounded. An unbalanced signal is often called single-
ended. See
Balanced .
V Volts.
VAC Volts, Alternating Current.
VDC Volts, Direct Current.
WECO Connector for AES asynchronous balanced signals. WECO output connectors have 3 or 5 pins.
Those having 5 pins support two AES signals, where each connector has 2 “–” pins and 2 “+” pins
that share a middle ground pin. The spacing on the pins is 3.5
mm.
WECO connectors have two parts for quick-release connections. One part is for the cable end and
the other part is installed in the hardware (e.g., the router’s backplane modules).