Grass Valley NV7512 v.1.3 - Manual (Page 123)

NV7512 Audio Router • User’s Guide 113
9. Glossary
AC Alternating Current
A/D Audio to digital
AES Audio Engineering Society, Inc., New York, www.aes.org.
AES/EBU Audio Engineering Society/European Broadcasting Union. A professional serial interface for trans-
ferring digital audio from CD and DVD players to amplifiers and TVs. AES/EBU is typically used
to transmit PCM and Dolby Digital 5.1, but is not tied to any sampling rate or audio standard.
AES3,
AES3-id The AES routers support AES3-id and provide 75 Ω BNC connectors. AES3-id uses 75Ω coaxial
cable up to 1000 meters. (AES3 uses 110 Ω shielded twisted pair (STP) cable with XLR connectors
up to a distance of 100 meters.)
Analog audio A signal where the instantaneous voltage is proportional to the diaphragm velocity at the micro-
phone.
ASIC Application Specified Integrated Circuit
Asynchronous A system where various signals are unlocked (not synchronized). Switching between signals leads
to unpredictable results.
D/A Digital to analog
DC Direct Current
dBu Unit of audio level where 0 dBu is 0.775 V rms.
EIA Electronic Industries Alliance. The EIA (until 1997 Electronic Industries Association) is a trade
organization for electronics manufacturers in the United States. EIA is accredited by the American
National Standards Institute (ANSI) to help develop standards on electronic components, consumer
electronics, electronic information, telecommunications, and Internet security.
ESD Electrostatic discharge
FPGA Field-programmable gate array
IMD Inter-modulation distortion
I/O Input / Output
Jumpers Jumpers are small, plastic sleeves that fit over a set of pins. The placement of the jumper either
turns a function on or off, or reconfigure a function.
LED Light Emitting Diode
MADI Multi-channel Audio Digital Interface. MADIs are comprised of MADI signal streams. MADI
streams can move up to 16 incoming or outgoing signals on a single wire.
Mini-DIN Connector for DIN 1.0/2.3 connections.