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3
AVB Networking Basics
3.1
Selecting the Right Switch
StudioLive™ Series III
AVB Networking Guide
3
AVB Networking Basics
When configuring an AVB network, it is important to familiarize yourself
with the fundamental components. This section has been designed
to assist you in building your AVB network from the ground up.
3.1
Selecting the Right Switch
By definition, all AVB switches must adhere to every IEEE standard within
the AVB protocol. Ordinary LAN switches (managed or unmanaged)
used in everyday IT applications don’t have this same requirement and
do not support the protocols necessary for AVB networking.
All AVB switches are required to support the following:
•
IEEE 802.1Q: Stream Reservation Protocol (SRP) and Traffic Shaping (FQTSS)
•
IEEE 802.1AS: Time Synchronization using Generalized Precision
Time Protocol (gPTP) on each AVB enabled Ethernet port
These standards are critical for both reservation
management and tight, synchronized clocking.
3.1.1
PreSonus SW5E AVB Switch with PoE
The PreSonus SW5E AVB Switch with PoE is a 5-port AVB switch that is fully
compatible with all PreSonus AVB devices. In addition to adhering to the required
IEEE standards, the SW5E provides Power over Ethernet (PoE) on four of its five ports.
Power over Ethernet or PoE is an IEEE standard that allows electric power
to be provided over the same Ethernet cable used for data transfer,
similar to how Phantom Power provides enough current over an XLR
cable to power condenser microphones and active direct boxes.
The PreSonus EarMix 16M can be fully powered by PoE using a PreSonus
SW5E switch or any other standard AVB switch that provides it. It should
be noted that while the EarMix 16M can receive PoE, it does not pass that
power through to other devices. So, in order to power multiple EarMix
16M, each mixer must have a direct path back to a PoE AVB Switch.
SW5E AVB Switch
Audio, Data, and Power
EarMix 16M Personal Monitor Mixers
Link
PoE
Blue= PoE On
(Hold to toggle)
White= PoE Off
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2
3
4
5
SW
5E
AVB SWITCH WITH P
o
E
PoE
Link
PoE
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2
3
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5
