Cirrus Logic CobraNet - Manual (Page 141)

CobraNet Programmer’s Reference
Glossary of Terms
DS651PM25
©
Copyright 2006 Cirrus Logic, Inc. 141
10. Glossary of Terms
100BASE-T
See Fast Ethernet
1000BASE-T
See Gigabit Ethernet
Audio Channel
A single audio signal. Audio channels on CobraNet have a 48 kHz sampling rate and may
be 16, 20 or 24 bit resolution. Multiple audio channels may be carried in a
Bundle .
Auto-negotiation
A low bit rate form of communication during which one device tells another device if it is
capable of full- or half-duplex operation and whether to connect at 10MB or 100MB bit
rates. More information on auto-negotiation is available at
http://www.peakaudio.com/
Index.htm .
Broadcast Addressing
Broadcasting is a special case of Multicast Addressing . Whereas it is possible, in some
cases, to indicate intended recipients of multicast data, broadcast data is unconditionally
received by all
DTE s within a network domain.
Bundle
The basic network transmission unit under CobraNet. Up to 8 Audio Channel s may be
carried in a bundle.
Category 5 Cable (CAT5)
As used on this site, CAT5 is inexpensive unshielded twisted pair (UTP) data grade cable.
It is very similar to ubiquitous telephone cable but the pairs are more tightly twisted. CAT5
cable runs are limited to 100 meters due to signal radiation and attenuation
considerations. A CAT5 run in excess of 100 meters may be overly sensitive to
electromagnetic interference (EMI). It should be noted that not all CAT5 cable is UTP.
Shielded CAT5 also exists but is rare due to its greater cost and a much shorter distance
limitations than UTP CAT5.
CobraNet™
CobraNet is a combination of hardware, software and protocol which distributes many
channels of digital audio over
Fast Ethernet . CobraNet supports switched and repeater
Ethernet networks. On a repeater network, CobraNet eliminates collisions and allows full
bandwidth utilization of the network. CobraNet uses standard Ethernet packets and
network infrastructure.