d21m card… · studer d21m livewire card transfers the combined digital audio data over ethernet...
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Studer’s D21m I/O System is now Axia Livewire™-Ready
D21m Card
The D21m Livewire I/O card is the newest addition to Studer’s versatile D21m I/O system. The D21m system is used for mixing consoles and audio routers but can also be used for standalone applications.
Live-What?Livewire is an audio networking protocol developed by Telos Systems. It enables the transportation of real-time, live audio together with control metadata via a switched Ethernet network. The network delivers the audio data via switches to all devices to which the audio is assigned.
When using Livewire, audio can be directly connected to the network. Audio delivery systems – or other audio devices, such as Studer’s renowned mixing consoles – can use their Ethernet connection for sending and
receiving audio signals to and from the network with no alteration or degradation, ensuring low-latency workflow.
The Studer ApproachWhile standard sound or audio I/O cards require individual cabling, Studer’s D21m Livewire card
Back
plane
LivewireSIM Module
1
WCLK OUT
8 x I2S
pMux 4 x I8S
D21m SPI
ConfigDevice
JTAG
SPI
EXT_MASTER_REF_CLK
2 x FS CLK, AIN_CLK
8 x I2S
2 x FS CLK, AIN_CLK
CLK
UART/CTRL
UART/CTRL
24 V / 5 VConv.
25 MHz DIPSwitches
LEDs
LivewireSIM Module
2
Studer D21m Livewire card block diagram
Studer Professional Audio GmbH, Riedthofstrasse 214, CH-8105 Regensdorf, Switzerland Phone +41 44 870 75 11, Fax +41 44 870 71 34, http://www.studer.chStuder USA, 8500 Balboa Boulevard, Northridge, CA 91329, USAPhone +1-818-920-3212, Fax +1-818-920-3208, http://usa.studer.chStuder reserves the right to improve or otherwise alter any information supplied in this document or any other documentation supplied hereafter. E&OE 08/12
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Studer D21m Livewire Card
transfers the combined digital audio data over Ethernet links.The Livewire card is a single-slot unit accommodating two Livewire SIM modules. Each Livewire SIM module can send and receive up to eight stereo signals to and from the Livewire network.
SynchronisationEach Livewire node features a PLL to recover the audio clock from multicast clock packets generated by the internal master.
This Livewire audio clock may be used as clock reference for a Studer OnAir or Vista console.
If required, the mixing console can be the Livewire clock master alternatively.
ApplicationsThe new Studer D21m Livewire card may be added to new and existing Studer consoles. The diagram above illustrates how to
connect additional outside sources and targets to an existing system by using Livewire.
In order to interconnect inputs and outputs of two or more different consoles, the combination of Studer’s RELINK (I/O sharing) with Livewire leads to economic solutions if the number of shared inputs and outputs is in a low to medium range.
Studer D21m Livewire card application example
Livewire Audio Node 1
HD Link(I/O Sharing Point-to-Point)
HD Link
OnAir Studio 1 OnAir Studio 2
SCoreRoute6000
* D21mLivewireI/O Card
SCore
D21mI/O
8 × S
tereo
8 × S
tereo
LivewireSwitch
Livewire Audio Node 2
Livewire Audio Node 3
Console (e.g. Vista 5)
AES/EBU Sources 1...nMADI Sources 1...m
AES/EBUMADI
Console (e.g. Vista 9)
Livewire Audio Node x
*