Grass Valley NV8500 Series v.3.5 - Manual (Page 237)

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Glossary
3Gig A term adopted by Grass Valley to refer to video rates of 2.966 Gb/s and 2.970 Gb/s. For NVISION series
routers, a 3Gig signal also accepts HD and SD rates. It reclocks at 270 Mb/s, 1.483 Gb/s, 1.485 Gb/s,
2.996 Gb/s, and 2.970 Gb/s . Reclocking is bypassed at other rates.
AC Alternating Current.
AES Audio Engineering Society, also known as AES/EBU. In Grass Valley documents, the name refers
to a digital audio standard officially known as AES3. It was developed by the Audio Engineering
Society (AES) and the European Broadcasting Union (EBU).
Async Asynchronous. A signal that is not locked to a clock. Switching between asynchronous signals
has unpredictable results.
Balanced A balanced signal is a circuit having two sides (conductors) carrying voltages that are symmet-
rical around a common reference point, typically ground. See
Unbalanced , following.
CE Conformité Européenne. European health and safety organization and its product label.
dBu Unit of audio level where 0 dBu is 0.775 V rms.
DC Direct Current.
EIA Electronic Industries Alliance. A trade organization for electronics manufacturers in the United
States. The organization helps develop standards on electronic components, consumer elec-
tronics, electronic information, telecommunications, and Internet security. The originator of
standards such as RS-232 and RS-485.
ESD Electrostatic discharge.
HD High Definition (i.e., HD-SDI). Digital video signal rates of 1.483 and 1.485 Gb/s . Governed by SMPTE
259M.
iControl-Solo Software with which, among other functions, to configure the frame sync functions of frame sync
input cards. iControl-Solo is also used to control and monitor frame sync functions during
operation.
IEC International Electrotechnical Commission. An international standards organization dealing with
electrical, electronic and related technologies.
IEEE Institute of Electrical & Electronics Engineers. An international non-profit, professional organiza-
tion for the advancement of technology related to electricity.
IMD Inter-modulation distortion.
I/O Input/Output.
LAN Local Area Network. In Grass Valley systems, this is an Ethernet network or subnetwork.
LC A small form factor connector for fiber-optic signals.
LED Light Emitting Diode.
MADI Multichannel Audio Digital Interface. A protocol that defines the data format and electrical char-
acteristics of an interface carrying multiple channels of digital audio. The AES standard for MADI
is currently documented in AES10-2003. The MADI standard includes a bit-level description and