D21m System
6.3.13 Livewire® Card (,*)

,5014376		

One or several D21m Livewire cards can be plugged into a D21m frame andcan be seamlessly integrated in an environment of Studer I/Os, consoles,and/or routers. This allows transferring audio data over Ethernet via Axia’s
Livewire technology – not only among Studer products featuring D21m card
slots, but also in combination with 3rd-party components supporting theLivewire standard. The D21m Livewire card features 16 stereo channels inand out (8 per Ethernet connector). The channels are configurable with a DIPswitch in groups: 0, 16 or 32 input signals, and 0, 16 or 32 output signals.		 Please note that Livewire only ‘knows’ about stereo channel pairs. The D21m
Livewire card, however, will split or combine these pairs on the D21m system’s backplane into/from mono signals. Therefore, if mono channels arerequired, this can can only be realized via the console’s configuration but notin the Livewire domain.		 A word clock output is provided on the card and can be used for synchronizing other Livewire devices.		
from SW Version* Supported Product family
VistaOnAirRoute 6000

V 5.0
V 5.0
V 2.2		 Current consumption (24 V)			
(3.3 V)		 Operating temperature

300 mA
60 mA
0-40 °CWCLK OUT

Livewire
SIM Module 1

UART/CTRL
8 x I2SCLK

2 x FS CLK, AIN_CLK
LEDs

4 x I8SFPGA ‘pMux’
8 x I2S
Livewire
SIM Module 2

D21m SPI

D21m
Backplane

2 x FS CLK, AIN_CLKSPI

UART/CTRL
25 MHzDIP
SwitchConfigDeviceJTAG

24 to 5 V

Integration

Document generated: 04.03.15

In order to use Livewire audio and control data by Monitora via TCP/IP, thePC or Server with a radio automation software must have a virtual com port.
Installing ‘Virtual Serial Port’ by Eltima, http://www.eltima.com/products/
vspdxp/ is recommended.
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D21m System		 In addition, the designated I/O setup needs to be configured in the OnAirconsole.		 Besides interfacing to other Livewire hardware nodes, Studer’s Livewire card
can also connect to a virtual Livewire audio device. To connect to a virtualLivewire device, a Livewire virtual audio driver must be integrated by the3rd party system, such as a radio automation. Audio can be played back thenout of the 3rd party system to a Studer console via Livewire.		 The radio automation system can control the OnAir console (routing, snapshots, faders) using the Monitora protocol (requires support of Monitora by
the 3rd party system). It is also possible that the console triggers a playback
by manually opening the dedicated console fader.
Notes In order to have a reliable Livewire configuration, installation of a Livewirerecommended switch is mandatory (such as the Cisco 2960).		 The Livewire card requires an update of OnAir software to version 5.0.		 Livewire operation is limited to the standard sampling rate of 48 kHz.		 GPIO over IP is currently not supported; however, the Monitora protocol may
be used for controlling channel functions of the mixing console by the playout
system. The console will need two separate Ethernet connections then – onefor AoIP (Audio over Internet Protocol), the second for Monitora control.
Front Panel LEDs

LNK (Link)

LW (Livewire)

SY (Sync)

MST (Master)

SY and MST

ERR (Error)		

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When continuously illuminated, this LED indicates the presence of a live
Ethernet link to another Ethernet 100BASE-T device, which means that aconnection is present and some device is connected. It does not indicate thequality of the connection, however. If no Ethernet link is present, it will flashslowly.
This LED indicates that the connected Ethernet segment has Livewire traffic present. If the LNK LED is illuminated but the LW LED is not, there are
either no other Livewire devices connected, or the Ethernet switch has notbeen programmed to pass such traffic.
If sync packets are being received by the Livewire node, this LED will begin
to flash. The LED will continue to flash until the Livewire node has locked
its local clock to the network master. Once the local node’s PLL is locked,
the LED will illuminate continuously.
The Livewire system employs a sophisticated master/slave clocking systemover the Ethernet network. Any device may become the clock master bydefault, however this can be changed if desired. The system has the ability toautomatically change to a different clock master if the current master is disconnected or otherwise inoperative. This happens transparently and without
any audible glitches. The LED indicates that this node is currently acting asmaster.
Only one of these two LEDs should be illuminated at a time. If neither LEDilluminates, something is faulty. The SY LED indicates incoming clock
information from another (master) Livewire node. The MST LED indicatesthat its node is acting as the master clock source for the Livewire network.
Both ERR LEDs alternately flash if the D21m frame has no lock or if it runs
at a sampling rate different from 48 kHz.
The individual ERR LEDs are illuminated if• the corresponding Livewire module has detected an internal error, or• the UART communication fails, or• the corresponding Livewire module is missing.

Document generated: 04.03.15

D21m SystemONS2
1 2 3 4 5 6 7 8

DIP Switch S2

6.3.13.1

Segments 1 & 21OFFONOFFON2 Option
OFF 0 outputs
OFF 16 outputs
ON 32 outputs (factory default setting)
ON not used

Segments 3 & 43OFFONOFFON4 Option
OFF 0 inputs
OFF 16 inputs
ON 32 inputs (factory default setting)
ON not used

Segment 5Segments 6 & 7Segment 8

reserved for future use (must always be OFF)not used (factory default setting: OFF)
reserved for future use (must always be OFF)

Configuration via Web GUI		

Connect your computer to one of the card’s ports with an Ethernet cable. Enterthe IP address (default: 192.168.1.38) in the address line of your browser andhit Enter. Refer to the following chapter if the IP Address of your device isunknown. Login to open any page (user name: axia, no password required).

Sources Page		(Factory default settings shown).
Displays the source channels sent to the Livewire network by this module.		
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77D21m System
Destinations Page (Factory default settings: Local loopback).		 Displays the source channels received from the Livewire network by thismodule.		
QoS (Quality of Service) Page		(Factory default settings shown).
If this module will be used as Livewire clock master, select ‘7 (always master)’for ‘Livewire clock master priority’.		
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Document generated: 04.03.15

D21m System
System Page		(Factory default settings shown). Use ‘Network address’ to change the IPaddress.
This page can also be used for firmware updates. Switch to ‘Bank 0’, upload
the new firmware to ‘Bank 1’ and switch back to ‘Bank 1’.		

Note
6.3.13.2

Repeat this procedure for the second Livewire SIM module if required.

Livewire Network Node Detection		
•••Document generated: 04.03.15

In order to retrieve unknown IP addresses in the network proceed as follows:
Install Pathfinder PC/PRO on your computer (download from www.axiaaudio.com; use the ‘PathfinderPC Server x.xx Release’ link). The free version
has restricted functionality but is sufficient for our purposes. It is specified
for computers running Windows® XP but also seems to be compatible withWindows® 7.
Connect your computer to the network.
Start PathFinderServer. Skip the License Dialog by a click on ‘Exit’. Afterconfirming to work in restricted functionality mode, the following windowpops up:

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D21m System•

Select ‘Add Router’.		
•Select ‘Axia Livewire Audio’ as ‘Router Model’ and click ‘Next’.		
••80

Select the network adapter according to your Livewire setup and click ‘Scan’.
In the lower window you can see all Livewire nodes available, regardless ofthe network adapter IP settings. Livewire uses a broadcast message to advertise Livewire nodes.

Document generated: 04.03.15