LAWO A mic8 User Manual Download Page 1

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A__mic8 / A__digital8

User Guide

Version: 10.0.0/4

To obtain the latest documentation and software downloads, please visit:

www.lawo.com/downloads

Edition: Wednesday, April 17, 2019

Summary of Contents for A mic8

Page 1: ...A__mic8 A__digital8 User Guide Version 10 0 0 4 To obtain the latest documentation and software downloads please visit www lawo com downloads Edition Wednesday April 17 2019...

Page 2: ...ers It cannot be guaranteed that all product names products trademarks requisitions regulations guidelines specifications and norms are free from trade mark rights of third parties All entries in this...

Page 3: ...Instructions 5 3 Overview 6 4 Controls Connectors Indicators 7 5 The Streaming Ports 9 6 Synchronization 12 7 Installing the Unit 14 8 Front Panel Parameters 16 9 Connecting a Service Computer 19 10 T...

Page 4: ...etwork requirements and suitable components for AoIP All Lawo manuals are available from the Downloads area at www lawo com after Login Look out for the following which indicate Notes points of clarif...

Page 5: ...Important Safety Instructions 2 Important Safety Instructions Please observe all of the instructions provided in the General Safety Information for Lawo Equipment booklet delivered with your devices D...

Page 6: ...OUT to expand the unit s synchronization options Power The interfaces have no fans or internal power supply They can be powered using either Power over Ethernet PoE or an external 12V DC power supply...

Page 7: ...upply is optional and must be used if Power over Ethernet PoE is not available or if power redundancy is required The CASE grounding screw should be used to ground the frame 6 7 ETHERNET A ETHERNET B...

Page 8: ...2 A__digital8 The A__digital8 is identical to the A__mic8 except for 2 4 x AES3 OUT Four stereo AES3 outputs XLR for connection to local devices balanced floating galvanic isolated 110 output impedanc...

Page 9: ...er configuration and management of the data network The network must use a suitable architecture all components must support multicast as opposed to unicast a proper Quality of Service QoS must be con...

Page 10: ...diagram below illustrates the concept in a standard data network A SMPTE 2022 7 enabled transmitter duplicates the input stream and sends it via two different paths to the destination receiver The rec...

Page 11: ...panel display and within the RAVENNA Web UI they appear as ra0 and ra1 This is important to know when editing settings from the front panel or using the Web UI Rear Connector Panel Network Interfaces...

Page 12: ...ternal sample rate of the device 6 2 Using PTP For correct synchronization via PTP the RAVENNA streaming network requires a PTP master clock source This can be achieved by using a RAVENNA node or inst...

Page 13: ...ly for networks utilizing SMPTE 2022 7 you could install a Lawo A__madi4 This brings a number of advantages A__madi4 can transmit PTP to the network via both of its interfaces Thus supporting the two...

Page 14: ...work as first you must configure their IP settings A__mic8 A__digital8 is a fanless unit and relies on convection cooling Please do NOT obstruct the ventilation holes when connecting your cabling 4 Ap...

Page 15: ...the device to the network using ETHERNET A and or ETHERNET B If you wish to configure SMPTE 2022 7 compatible streams then both ports must be connected 3 Open the device s Landing Page to check the ne...

Page 16: ...o edit the Device ID All other parameters can be edited in a similar manner 1 Turn the rotary control until you see the parameter you wish to edit the current value is displayed Then push down on the...

Page 17: ...mask and Gateway manually as described below DHCP select this mode to receive an IP Address automatically from the network s DHCP server Auto in this mode the unit will automatically assign its own IP...

Page 18: ...e following options Reboot Press down and then confirm to reboot the device Once the reboot is complete the latest settings will be restored Factory Defaults Press down and then confirm to reset the d...

Page 19: ...iding 255 is not already in use You can check the IP address of each streaming port from the device s front panel display Subnet Mask The Subnet Mask must match that of the port you are connecting to...

Page 20: ...anding Page 1 Open your browser software and enter the IP address of the device s ETHERNET port into the URL field You can check the IP address of each streaming port from the device s front panel dis...

Page 21: ...ry Database pages useful for Lawo support GPIOs local GPIO control Service Support can be used to download a snapshot of the settings useful for Lawo support if there is a problem with the device 10 3...

Page 22: ...anged from the RAVENNA Web UI can be backed up and restored using the Backup Restore Config tool This is ideal if you need to exchange a device 11 2 Prerequisites To run the RAVENNA Web UI your comput...

Page 23: ...t Mode from the headline at the top of the Home page A pop up window appears 2 Type in the Password ravenna and click OK The Home page updates to show all of the locked functions and Enable Edit Mode...

Page 24: ...k on Other RAVENNA Devices to navigate to another device s Home page 2 Device ID and other details This area defines the Device ID For the A__mic8 A__digital8 the Device ID can be edited either from t...

Page 25: ...ightly depending on the device s PTP mode master slave or slave only Master Slave device running as PTP Master Beside ID you will see the MAC address of the device Hover your mouse over the MAC addres...

Page 26: ...re described in more detail later Click on Create to create a new TX stream Click on an existing stream name to interrogate or edit its configuration Click on SEL ALL to select all TX streams Or click...

Page 27: ...Or click on Other network settings to view the general settings applied to all ports 2 Use the fields to type in a value or select a menu option 3 If you make a change select Apply to confirm or Cance...

Page 28: ...HERNET A 192 168 101 250 ra1 ETHERNET B 192 168 101 251 The Network Mask must match the Subnet Mask of all other RAVENNA streaming nodes For the A__mic8 A__digital8 the default Netmask 255 255 255 0 A...

Page 29: ...lf and all other streaming nodes determine the current PTP master Prio1 and Prio2 PTP uses a master slave approach in which all master capable devices elect the best master called the grandmaster acco...

Page 30: ...to all of the media s sending TX streams If the media has already been assigned to an active TX or RX stream then it will be locked as shown below 2 To unlock a media first close the window and use t...

Page 31: ...hree options PTP arriving from sending to the RAVENNA streaming network via ETHERNET A or ETHERNET B Internal the device s own internal sync generator WCLK In external wordclock connected to the WCLK...

Page 32: ...s 3 Once you have completed all of the settings check the network packet size shown in the box that starts Your configuration results in The network packet size cannot exceed the the Maximum Transmiss...

Page 33: ...ddress later by interrogating the TX stream manual the interface is active and you will need to enter your own multicast IP address Choose this option if your network supports a limited IP range To co...

Page 34: ...A__mic8 A__digital8 User Guide Version 10 0 0 4 34 66 11 The RAVENNA Web UI The diagram below illustrates how the TX stream properties relate to other parts of the configuration...

Page 35: ...for the digital audio For example L16 16 bit Linear PCM L24 24 bit Linear PCM AM824 24 bit Linear PCM 8 bit metadata a non standard format commonly used in AES EBU Channel count the number of channel...

Page 36: ...ce a stream has been published to the network ra0 and ra1 if you selected auto for either of the RAVENNA interfaces then you will now see the multicast IP address which has been been allocated SDP and...

Page 37: ...ngs Note that the streams listed in the Connect menu are dependent on the TX streams being announced to the network via their SDP information As this is not always supported by all devices you can ope...

Page 38: ...s is a RAVENNA compliant stream Note that it is NOT permitted to assign the same SDP or two non redundant SDPs In these instances an error message will appear and will need to remove the assignment to...

Page 39: ...streaming must connect to the same 981 61 RAVENNA IO module that is transmitting the PTP signal Request unicast In the current release this option should be left disabled as RAVENNA streaming supports...

Page 40: ...AND can see the sending node the stream will automatically be displayed in the RX Stream Connect menu If the receiving device does not use mDNS or cannot see the sending device then the automatic lis...

Page 41: ...dow click on the SDP button to copy the stream s SDP information to the clipboard If the stream is redundant then information about both of the paths is contained in the same SDP 3 Now open a Web UI c...

Page 42: ...he receiving device paste the clipboard contents into the Stream Source field If the TX stream is redundant copy and paste the URL for the each of the sending interfaces separately enter the ra0 URL i...

Page 43: ...stream Green correct operation Red there is either no connection or no data Orange the stream is being received but there are drop outs in the data You will also see an icon on the right of each RX s...

Page 44: ...ed every few seconds on the right is the peak value reached since the last reset Note that the Min Offset should never reach zero as this would mean that the buffer was empty Typically the Min Offset...

Page 45: ...connection to the sending device and make sure that the TX Stream Properties are configured to use both RAVENNA interfaces This means assigning a multicast IP address to both of the ra0 and ra1 field...

Page 46: ...The only other difference from a non redundant stream is that the Streams entry under Receiver Settings shows two lines one for the main and one for the redundant source By default these are assigned...

Page 47: ...copy and paste the SDP or RTSP URLs from the sending device Note that the same SDP will announce both streams If you need to use RTSP URLs then take care to copy and paste each one separately enter t...

Page 48: ...varies depending on the A__line device The screenshot below is taken from an A__mic8 which has 8 mic line inputs and 4 line outputs and so there are 8 TDM inputs and 4 TDM outputs In the example belo...

Page 49: ...ply to the stream Name 4 Click Apply a batch of TX streams are added to the Home page All properties are applied identically apart from the Name which takes the Start and End suffix and the Recording...

Page 50: ...d SHIFT to select a consecutive range of streams 3 Press and hold CTRL to select non consecutive streams 4 Click on the Select All icon to select or deselect all streams TX Streams Select All active 1...

Page 51: ...of TX or RX streams This is recommended if you are using an external control system such as VSM to control the streaming connections Backup and restore config This tool will backup and restore the com...

Page 52: ...ich settings will be affected are included in the release notes 3 Select Expert Settings Firmware update 4 Select the update file tar gz and then Start Update After a successful update the device will...

Page 53: ...page select either Device Parameters or GPIOs and then click on the graphical preview Note that you must enter service mode to access the GPIOs The control page opens in a new browser tab in our examp...

Page 54: ...typical range of 79dB this may vary and shift depending on the given reference level and headroom Input meter with dBFS levels and a peak hold indicator in red click on the meter to reset the peak hol...

Page 55: ...h AES3 In 1 to 8 is represented by a stereo channel with SRC ON OFF to enable or disable the sample rate conversion and input metering in dBFS for the left and right sides of the AES3 input Across the...

Page 56: ...e the GPIO Test Mode to loop all inputs to outputs This can be useful for testing purposes For normal operation the Test Mode should be OFF The two lower rows represent each individual input and outpu...

Page 57: ...on available from the Expert Settings menu of the RAVENNA Web UI To create a backup 1 Open the Landing page in service mode select Configuration Backup Restore and then click on the graphical preview...

Page 58: ...ill override all of the device s RAVENNA settings Therefore make sure that you are connected to the correct unit before performing a restore 2 Click on the Browse button select the backup file and the...

Page 59: ...the snapshot file 1 Open the Landing page in service mode select Service Support and then click on the graphical preview The Service Support page opens in a new browser tab 2 Click on the snapshot sh...

Page 60: ...h a parameter manually within the A__mic8 A__digital8 This can be useful when configuring and testing an Ember controlled device To use the application 1 Download the bz2 or xz archive from the locati...

Page 61: ...hat you have configured the TCP IP settings of your computer s network interface card 2 On a Windows 7 PC type cmd into the Search programs and files field under the Start menu and press Enter This op...

Page 62: ...configuration so check the network connections and TCP IP settings again Or contact your network administrator Ping Test Success If the ping test is successful then the result will show that the Sent...

Page 63: ...s configurable IO device Each DALLIS frame can be fitted with a combination of plug in IO cards DHCP Dynamic Host Configuration Protocol Commonly used in data networks to dynamically allocate IP addr...

Page 64: ...etwork supports 254 clients nodes If communication is required outside of the broadcast domain for example to a device with an IP address 192 168 102 xxx then the data packets must be redirected using...

Page 65: ...rking protocol URL address commonly used in establishing point to point media sessions Sample Rate The speed at which the Processing of the system takes samples respective to values from a continuous...

Page 66: ...nt data packets from circulating indefinitely UDP User Datagram Protocol A simple connection less networking protocol which is often used in real time applications due to its low latency UDP is suitab...

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