User manual

Eline User Manual
Page 5 of 16
Copyrights DSP4YOU ltd
Terminology for AVB streaming goes as follow:
o Audio Video Bridging (AVB): General descriptive for a group of protocols providing audio/ video streaming,
timing, synchronization, Quality of service (QoS) , control and discovery.
o AVB Endpoint: AVB powered device, capable of transmitting and/ or receiving audio streams using P1722/
P1733 transport protocol.
o Talker: AVB endpoint transmitting audio to the network. (Source)
o Listener: AVB endpoint receiving audio from the network. (Sink/ Destination)
o Talker/Listener: AVB endpoint that is both transmitting and receiving. All AVB endpoints used on Dana series
are by default Talker/Listener devices.
o Precision Time Protocol (PTP): Allows devices on the network to get a notion of global time in the effort to
synchronize with each other. PTP component in each AVB module can act as a Grand Master (providing
clock) or as a slave (receiving clock). Once a grand master negotiates and is selected as a sync source, all
units will synchronize to it.
o Streams: General term describing packetization of one or multiple audio/ video channels over the network.
Stream can be unicast or multicast. For the time being, the AVB module only supports unicast streaming.
Future revisions will provide additional features.
o Stream ID: Unique 64-bit stream identifier used by AVB transport protocols to identify streams.
1.3.2 Digital Signal Processing
E-Line is fitted with a small fixed point Digital Signal Processor (DSP) providing basic filtering tasks such as gain control,
signal metering, Low/High pass filtering, parametric equalization and dynamic range control (Comp/limiter).
This feature is optional and may be opted out at the time of ordering. Note that the Digital Signal Processing function
can however be enabled at a later time using a unique license key, only valid for a single unit.
Contact our
Sales team for more information on how to purchase the license key.
1.3.3 Power over Ethernet (PoE)
Power over Ethernet is the ability to provide remote power to devices over Ethernet cables. PoE requires Cat5/6
cables to operate and the standard is organized in classes. E-line is a Class2, 802.3af device for powering up to 15.4W.
A wide range of PoE enabled switch and power injectors are widely available in typical I.T. retail shops. Please
consult your local I.T. supplier for more information.