AAV-HD-XMUX(-T/R)/ AAV-SD-XMUX(-T/R) User manual
Contents
1. 1 The equipment will meet the guaranteed performance specification under the following environmental conditions Operating room temperature range 0 C to 45 C Operating relative humidity range lt 90 non condensing 2 The equipment will operate without damage under the following environmental conditions Temperature range 10 C to 55 C Relative humidity range lt 95 non condensing nevion com 23 AAV HD XMUX T R AAV SD XMUX T R Rev G Product Warranty The warranty terms and conditions for the product s covered by this manual follow the General Sales Conditions by Nevion which are available on the company web site www nevion com nevion com 24 AAV HD XMUX T R AAV SD XMUX T R Rev G Appendix A Materials declaration and recycling information A 1 Materials declaration For product sold into China after 1st March 2007 we comply with the Administrative Measure on the Control of Pollution by Electronic Information Products In the first stage of this legislation content of six hazardous materials has to be declared The table below shows the required information Toxic or hazardous substances and elements AREH a KR i AGE SRK ZR ER Part Name Lead Mercury Cadmium Hexavalent Polybrominated Polybrominated Pb Hg Cd Chromium biphenyls diphenyl ethers Cr VI PBB PBDE AAV HD XMUX T R AAV SD O O O O O O XMUX T R O Indicates that2. offering simultaneous embedding and de embedding of audio from a digital HD or SD serial video signal The modules can AAV HD XMUX can handle SD and HD digital uncompressed video AAV SD XMUX can handle SD digital uncompressed video De embed and embed all groups of audio Copy or move audio groups without additional delay De embed 2 AES3 digital audio and non audio signals Embed 2 AESS digital audio and non audio signals Embed 4 analog audio signals Apply sample rate converters when needed on the AES3 inputs Apply extra audio delay Swap stereo channels Make mono or sum from stereo signals Have optical laser output Have optical input Transport asynchronous serial data Generate video and audio signals De glitch correctly synchronized switched video Option Optical Transmitter 000 optical fiber EDH De Em EDH De embed ig bedder Ser Ser y Audio Proc SDI HD Input SDI HD Output R 42 R 422 Audio Matrix Audio Delay Group swapping ANA1 AES1 ANA2 AES2 gt gt gt gt gt AES2 Microcontroller gt Remote Control Figure 1 Module overview nevion com 4 AAV HD XMUX T R AAV SD XMUX T R Rev G The module has two main processing blocks One processes the video stream and the packet data the other processes the audio The packet processing core forms
3. DC to 115 200 bps The data bytes are either encoded as packets in the transmitted data or transmitted as an asynchronous bit stream which may also be used to transmit a DC signal such as GPI nevion com 16 AAV HD XMUX T R AAV SD XMUX T R Rev G 3 3 3 De embedding The audio channel with the data signal to be de embedded must be configured by GYDA as there may be several data channels available The AAV HD XMUX will automatically detect the data channel format when present and output the data on the 8P8C Modular jack connector The output driver will only be active when data is output in UART mode The means that the output is always active when raw data is used 3 3 4 Limitations 1 There is one thing the user must do in order to receive embedded data The audio source where the data is embedded must be routed to a destination in the stereo router This is because the extraction of the data takes place on the output of the router Example Data is to be de embedded from embedded audio channels 1 amp 2 Route embedded audio channels 1 amp 2 routed to output to Delay 4 2 The normal UART mode checks the data when receiving and only embeds valid bytes The data format must be correct This also means that a BREAK condition of many spaces will not be detected or transmitted Contact support if this is a requirement nevion com 17 AAV HD XMUX T R AAV SD XMUX T R 4 Connections Two backplanes are presently available for th
4. DIP Switches 3 1 4 1 A D converter gain SW3 4 5 6 The A D input levels may be set to one of the eight preset levels The levels correspond to the maximum sine wave level otherwise known as 0 dBFS SW3 4 5 6 000 001 010 011 100 101 110 111 Max level dBu 12 13 5 15 16 7 18 20 21 24 All four input levels are set by the DIP switches in DIP configuration mode GYDA can set the levels for each stereo pair 3 1 4 2 Non SRC mode SW1 7 When SW1 7 and SW1 8 are on the sample rate converters will not be used The user must ensure that the AES input signals are locked to the video signal audio otherwise click noises will be produced in the embedded audio signals 3 1 4 3 DIP Configuration SW1 8 SW1 8 on forces the DIP switch configuration to be used If there is a GYDA present the switch configuration on the module will be used but the configuration will be monitored in the GYDA controller Control of the card parameters can not be changed with GYDA SW1 8 off will not use the DIP switches but will be configured from either the stored configuration in the module or from GYDA if there is GYDA present The configuration will be stored when a GYDA configuration command is used Therefore if a GYDA is present the internal configuration will be overwritten by the GYDA controller nevion com 13 AAV HD XMUX T R AAV SD XMUX T R Rev G The DIP switch settings control the routing and a c
5. nevion com 14 AAV HD XMUX T R AAV SD XMUX T R Rev G RL Right Left Channels are swapped LL Left Left Left channel is copied into the right channel RR Right Right Right channel is copied into the left channel LR Left Right The left channel is phase inverted LOR Left Right The right channel is phase inverted L R 2 Left Right The left and right channels are summed MS MS AB The left and right channels are converted from AB stereo to MS stereo The sum products L R 2 and MS are reduced in level by 6 dB to avoid any possibility of clipping 3 2 3 RS422 Data port configuration The RS422 data 8P8C Modular jack input must be configured with GYDA The baud rate data length parity and stop bits must be configured if UART mode is used The router destination where the data is to be embedded must be set up and the source channel containing the received data that will be output on the 8P8C Modular jack must be also be configured See further Chapter 3 3 3 2 4 Transport and shuffling of audio groups The AAV HD XMUX stereo audio router involves de embedding buffering and re embedding which introduces a small delay relative to the video signal The group router is used to avoid this extra delay Groups that only pass through the group router are re embedded in the same video line This avoids any extra delay and means that incompatible audio formats asynchronous audio may still be transp
6. router is possible with the GYDA system controller Direct control with SNMP is available The module stores its routing configuration in non volatile memory when a GYDA command is given This allows complex configurations to be restored after a power loss The configuration is stored both in the card and in GYDA If the card must be replaced then GYDA will restore the configuration into the new card as long as SW1 8 is off If GYDA fails and there is a power glitch then the card will reboot with the stored settings If a GYDA system controller is present the last configuration of the module will be only be restored by GYDA if SW1 8 is off The intention is that SW1 8 is used to show that the card is manually configured when switched on 3 2 1 Audio delay lines The unit has four stereo audio delay lines connected to the audio router Audio to be delayed is routed to one of the delay inputs and the output of that delay is routed to the intended output The length of each delay line is set up on the configuration page of GYDA The maximum delay for each of the four delays is 16384 audio samples which is about 340ms The delay lines may be cascaded if longer delays are required 3 2 2 Stereo audio processing The output of each stereo signal may be manipulated LL RR LR RL OLR LOR L R 2 MS this is controlled with the GYDA controller The stereo signals may be output in one of the following ways LR Left Right No change
7. 6kHz samples 48 96000 458us des 8 1024 1024 3 ser video samples 27 6us AES 2 1 8 12 48000 250us 2 8 1 11 48000 229us 8 4 16 96kHz samples 28 96000 292us 16 128 17 16 96kHz samples 177 96000 1 84ms 4 16 8 96kHz samples 28 96000 292us 4 16 8 96kHz samples 28 96000 292us 270Mbps or 1 485Gbps 24p 50i 60i 50p or 60p and pull down rates PsF formats are handled as interlaced formats 270Mbps 50i and pull down 60i rates Automatic up to 35dB 75 ohm nevion com 8 AAV HD XMUX T R AAV SD XMUX T R Return loss Signal level Connector 2 4 2 Optical video input Optical wavelength Maximum Optical power Minimum Optical power HD SD Return loss Maximum reflected power Transmission circuit fiber Connector 2 4 3 Analog audio inputs Number of inputs Sampling frequency Differential input impedance Common mode input impedance Connector C1 backplanes Maximum signal level 0 dBFS Level precision Common mode voltage tolerance Frequency response Pass band ripple Stop band attenuation Dynamic range THD N 1 dBFS Intermodulation distortion Crosstalk CMRR 20 Hz 15 kHz 2 4 4 Digital Audio Inputs Number of AES3 inputs Audio data rate Input impedance Connector C1 backplanes Embedded audio word length Embedded audio Channel Status Sample rate converter dynamic range 2 4 5 Data inputs RS422 Connector UART mode Bau
8. DOR cts 6 12 Signal MIN A ened ae a 6 LS Dana O ca aan ae ad Do ic 7 SCI CAMINA EA AN UA a 8 2 1 Measurement conditions arara rara rara rara rara aaa 8 2 o General iss ci lana lago MES err eo bata EO DEDO eo ad EO DER ee S a a 8 2 3 PIOCOSSING ERRAR RR ERRO CPR ERR RR RP ER RR ER RR RR 8 PRE NEOUS A Se Do ee as Ce ae ease Me A 8 O Dio Djs PR AR RO ARENA O eran etter alee serene etre cena A 10 3 COMIQUEROS A 11 3 1 DIP switch Configuration scort io al 11 3 2 GY DASGONTIOli castas tte an el Ge es Geen a aan es en e ao a 14 3 3 Data transmission dia 16 A meaner ete emery arene tee em te Are a re rae PL Pee ere ee ER ere 18 4 1 Audio connections DB 25 arara rara ra arena 19 4 2 GPI Data connections 8P8C Modular jack raras 19 5 OPINA 20 a O 20 So GP lallarinS it ed ad 21 6 Laser sately PIOCaullONS assis AA A ARRE 22 General environmental requirements for Nevion equipment occccccccnnnccnoncccnnncnonananannncnnnnnnns 23 Product A A RE NR 24 Appendix A Materials declaration and recycling information ccccccnccnnncnnnnnnnnnnnnnnnnnnnnos 25 nevion com 3 AAV HD XMUX T R AAV SD XMUX T R Rev G 1 Product overview The only difference between the AAV SD XMUX and the AAV HD XMUX is that the latter can also handle HD SDI video The rest of the manual will only refer to the AAV HD XMUX The AAV HD XMUX is a highly integrated audio embedding module in the Flashlink range
9. Signal 1 Input AES Sos 2 Input AES 2 Tko os 3 Output AES Sos 4 Dutput AES 2 BESSA 5 Input Analogue 1 Wes Ov 6 Input Analogue 1R HOS 7 Input Analogue 2L i 8 Input Analogue 2R ESG JO Figure 6 DB 25 audio connector wiring 4 2 GPI Data connections 8P8C Modular jack O O00 N 0 Y P Figure 7 Pin layout 8P8C Modular jack Pin number Description Power present No Video signal Laser failure RS485 422 output RS485 422 output RS422 input RS422 input 0 N O 01 AJIN Ground Rev G nevion com 19 AAV HD XMUX T R AAV SD XMUX T R 5 Operation AAY HD XM LK fot Card tatus O Input status Gr Audio status 1 q Audio 0 status 2 Figure 8 LED overview Rev G Text not printed on the front panel Each module has 4 LED s The colors of each of the LED s have different meanings as shown in the tables below 5 1 Front panel LEDs AES status LEDS show information decided by DIP switch 2 7 LED mode On corresponds to the AV MUX AV HD XMUX audio input mode Off corresponds to the AV DMUX AAV DMUX de embedder audio mode Diode state Red LED Orange LED Green LED No light Card status PTC fuse has Module has not Module is OK Module has no been triggered been power or FPGA programmed programming has failed or laser has failed SDI input Video
10. a group router which can route embedded audio between groups without any extra delay The AAV HD XMUX audio core is an AES3 stereo audio router The received embedded audio and the audio inputs are the sources in the router The embedded output groups and AES3 outputs are the destinations This feature may also be used to perform stereo channel swapping Four stereo delay lines are also available in the router with a total combined delay of 1 25s Audio processing is possible within each stereo output The channels may be changed allowing L R swapping mono assignment summing MS conversion and phase reversal of one of the signals There are two embedding modes Non SRC mode The AES3 input signals are embedded transparently Automatic mode The module will use sample rate converters when necessary Data signals such as Dolby E will always be embedded transparently without using the sample rate converters All embedding and de embedding is performed with synchronous 48 kHz audio The unit may be ordered with optional optical transmitters and receivers The laser options range from the standard 7 5dBm 1310nm to the CWDM units The receivers may be either HD single mode or HD multi mode Both units will receive both HD and SD data rates The module has signal generators for audio and video for test and line up applications The internal video generator may be used as a fall back source that is used if the both the electrical and th
11. afety should be read thoroughly The lasers emit light at wavelengths from 1270nm up to 1610nm This means that the human eye cannot see the beam and the blink reflex cannot protect the eye The human eye can see light between 400 nm to 700 nm A laser beam can be harmful to the human eye depending on laser power and exposure time Therefore Be careful when connecting disconnecting fiber pigtails ends Never look directly into the pigtail of the laser fiber Never use microscopes magnifying glasses or eye loupes to look into a fiber end Use laser safety goggles blocking light at 1310 nm and at 1550 nm Instruments exist to verify light output power Power meters IR cards etc Flashlink features All the laser module cards in the Flashlink product range are Class 1 laser products according to IEC 825 1 1993 and class according to 21 CFR 1040 10 when used in normal operation More details can be found in the user manual for the FR 2RU 10 2 frame Maximum output power 5 mW Operating wavelengths gt 1270 nm INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM OUTPUT POWER lt 5mW WAVELENGTH gt 1270nm CLASS b LASER PRODUCT REF FDA CFR Ch 1 4 1 97 Ed 1040 10 3 Max power is for safety analysis only and does not represent device performance nevion com 22 AAV HD XMUX T R AAV SD XMUX T R Rev G General environmental requirements for Nevion equipment
12. d rates Data length Parity Stop bits 1 THD N of 60 dBFS 1 kHz signal 60 Rev G gt 15dB up to 1 5GHz nom 800mV BNC 1200 1620nm 40 nm 0 dBm HD PIN 22 26 dBm with HD PIN Better than 27 dB 4 Single mode HD PIN Multi mode option on request Multi mode PIN is standard with AAV SD XMUX SC UPC 4 48 kHz 24 kohm 50 kohm DB 25F Female with UNC threads 12 13 5 15 16 7 18 20 21 or 24dBu 0 1dB where Zsource lt 40 ohm 30V Maximum peak signal level 20 Hz 20 kHz 0 1 dB 0 005 dB 80 dB Min 103 dB A typical 107 dB A Max 90 dB typical 96 dB Max 90 dB typical 95 dB Max 90 dB typical 99 dB Max 70 dB 15 kHz typical 90 dB low frequencies 2 30 kHz to 200 kHz converted to 48 kHz if not 48 kHz and isochronous to the video input signal 110 ohms transformer balanced DB 25F Female with UNC threads 20 or 24 bits As received when isochronous otherwise fixed 139 dB A O 1kHz 1 8P8C Modular jack 9600 to 115200 7 or 8 bits None odd or even 1 1 5 or 2 bits 2 Signal at 12 dBFS SMPTE 4 1 60 Hz 7 kHz nevion com 9 AAV HD XMUX T R AAV SD XMUX T R GPI mode Raw data sampling frequency 2 5 Outputs 2 5 1 Electrical video output Number of HD SDI outputs Connector Impedance Return loss Signal level Rise fall time 2 5 2 Optical video output Optical wave
13. e AAV HD XMUX HD SQ D SQ 0 p Audio INO Ohm Audio INO 0000 ce O O D in Norway Rev G Laser o PIN Z 2 CE 5 T GPI Po p o O b o o O Q O O HD SDI o p Figure 5 AAV DMUX C1 left AAV HD XMUX C6 and AV HD XMUX C1 right The AAV DMUX C1 is the standard backplane connector module with BNC video electrical inputs and outputs A DB 25 type connector is provided for the analog and AES3 audio inputs and outputs The pin configuration used is the industry standard DA 88 type so that commercially available snakes may be used The AAV HD DMUX C6 is a backplane with termination resistors for the analogue inputs to allow the module to be used with 600 ohm lines This module should only be used when there is requirement for a matched impedance as it also introduces a 6 dB level reduction The AV HD XMUX C1 is a backplane connector module with two optical ports and a BNC video electrical input and output A DB 25 connector is provided for the audio inputs and outputs nevion com 18 AAV HD XMUX T R AAV SD XMUX T R 4 1 Audio connections DB 25 XLR No
14. e optical input signals fail This allows uninterrupted transmission of embedded audio The user may also configure the module to mute the outputs if the input signal disappears nevion com 5 AAV HD XMUX T R AAV SD XMUX T R Rev G 1 1 Audio signal flow Embedder 12 34 Figure 2 Processing core overview 1 2 Signal flow Video may be presented on the optical or electrical inputs The module will switch to the other input if the module can not lock to a signal The video is re clocked and transformed to parallel video The parallel video goes into a line buffer which is used to de glitch the video when switched on the correct line No errors are flagged or produced when the video is switched on the appropriate switching line All ancillary data including embedded audio is extracted from the video signal All the packed data is sent to the group router The de embedded audio is sent to the stereo audio cross point router The analog inputs Stereo inputs 1 amp 2 are always connected directly to the audio router The AES audio inputs Inputs 3 amp 4 are initially connected directly to the audio router Sample rate converters are inserted if there are sample slips but only if the signals are not data signals The sample rate converters may be disabled with DIP switch 1 7 The audio processing is performed on the stereo router outputs Four of the router outputs are connected to the four stereo delay lines The outputs of t
15. he delay lines are connected to four inputs of the stereo audio router The audio signal is delayed by a few samples during de embedding re packeting the audio and audio processing Signals that pass through the stereo audio router will be delayed by a small number of samples The group router outputs from the de embedders do not introduce any additional delay as the audio does not require unpacking and re packing The embedder core embeds either re packeted audio from the stereo router or the existing de embedded audio as configured in the group router nevion com 6 AAV HD XMUX T R AAV SD XMUX T R Rev G The embedded audio packets are inserted into the video signal together with the control packets and any other packets that were present in the original video signal The video is serialized and output through the cable and laser drivers The audio signals are taken from the outputs of the audio router 1 3 Data signal The data signal is transported using the User bits in one of the embedded audio streams De embedded data is output on the RS485 output Data received at the R422 input is embedded into the output video The configuration sets the audio source containing the data signal to de embed the data format to be received on the backplane connector and which audio output signal to embed data into nevion com 7 AAV HD XMUX T R AAV SD XMUX T R 2 Specifications Rev G 2 1 Measurement conditions Audio Samp
16. ical inputs The video output may be configured to either use the internal generator or to switch off when no video is detected on the inputs The card will use the internal generator while it switches between inputs until it finds a valid video signal There is also a manual input mode which disables the input automatic switching between inputs The video generator may be also selected to override the input video picture The input video will decide the timing of the output video and any embedded packets will still be used by the module Only the picture will be overwritten If the video signal is removed however the input will not switch even if there is a valid signal at the other input 3 2 8 De glitching Upstream video switching in a router causes glitches in the digital video The module will remove these glitches if the switch occurs on the correct video line for the standard in use The input buffer is two video lines of the longest standard and starts in the middle Subsequent switches will be transparent if the new signal phase is within a line from the original video There will be a glitch on the output if the new video phase is outside of this range The buffer will be re aligned to the middle with the new signal phase 3 3 Data transmission The module can de embed and embed asynchronous data An AES3 audio signal is used as a carrier Both embedded audio and normal AES3 signals may be used to carry the RS422 data The fiber connecti
17. length 13T Light source Optical power Extinction ratio Optical wavelengths 13T0 15T CxxxxT Light source Optical power Extinction ratio Jitter Ul unit interval Return loss Maximum reflected power Transmission circuit fiber Connector 2 5 3 Digital Audio outputs Number of AES3 outputs Audio data rate Impedance C1 backplanes Connector C1 backplanes 2 5 4 Data outputs Number of RS485 outputs Connector 2 5 5 GPI outputs Signals Connector Signal type Maximum voltage Maximum current Rev G 93750 Hz 1 BNC 75 ohm gt 15 dB to1 5GHz nom 800mV typically 650ps 270Mbps lt 270ps 1 485Gbps 1310nm 40nm FP semiconductor laser 7 5 dBm gt 5 1 1270 1290 1310 1330 1350 1370 1390 1410 1470 1490 1510 1530 1550 1570 1590 1610nm 6nm DFB semiconductor laser 0 dBm gt 10 1 lt 0 135 Ul O SD lt 0 2 UI HD better than 40 dB typ 4 9 125um Single Mode SC UPC 2 48 kHz 110 ohm transformer balanced DB 25F Female with UNC threads 1 8P8C Modular jack Power status good no video input lock laser failure 8P8C Modular jack Open drain transistor with free wheel diode 100 V 150 mA nevion com 10 AAV HD XMUX T R AAV SD XMUX T R Rev G 3 Configuration The XMUX embedding core can be considered as an 18x14 stereo audio router and a 5x4 group router The group router is used to transport o
18. ling rate Ambient temperature 2 2 General Power Control Monitoring EDH CRC processing Boot time Digital audio inputs and outputs Video inputs and outputs Data input and output 2 3 Processing 48 kHz 25 C 5V DC 0 7A 3 5W 15V DC 0 017A 0 5W DIP switches GYDA system controller Front panel LEDs GYDA system controller and GPI Full Received flags are updated new CRCs are calculated 1 2 second Conform to AES3 2003 Conform to SMPTE 292M 1998 Conform to EIA RS 485 Video latency is variable due to the de glitcher but the values below apply when the video signal is first applied Other latency values are maximum values 2 3 1 SD latencies Video Audio embedding Audio de embedding Embedding data GPI mode Embedding data UART mode De embedding data GPI mode De embedding UART mode 2 3 2 HD latencies Video Audio embedding Audio de embedding Embedding data GPI mode Embedding data UART mode De embedding data GPI mode De embedding UART mode 2 4 Inputs 2 4 1 Electrical video input AAV HD XMUX Video Data rate Video frame rate AAV SD XMUX Video Data rate Video frame rate Equalization Impedance des 4 350 256 2 ser video samples 45 3us AES 2 1 16 audio samples 20 48000 417us 4 16 1 audio samples 21 48000 438us 8 4 32 96kHz samples 44 96000 458us 32 128 17 16 96kHz samples 193 96000 2 01ms 8 32 8 96kHz samples 44 96000 458us 8 32 8 9
19. m the default settings It was decided to control only the most used parameters with switches This still requires the use of 24 switches The switches are only read if SW1 8 DIP configuration mode is in the on position There are not enough switches on the module to allow full stereo routing configurations Groups of four channels are routed together as units for example AES input channels 1 amp 2 embedded audio group 1 3 1 1 Destinations The switches control the routing of signals to the outputs or destinations There are four embedded audio groups and one pair of AES outputs The configuration assigns sources to output groups and the pair of AES outputs This allows the same input signals to be routed to several outputs There is a group of three switches for each of the outputs The combination of the three switches set the input source or disables the output e g Group 1 embedded output is controlled by switches on SW1 positions 1 2 and 3 AES outputs are controlled by switches on SW3 positions 1 2 and 3 nevion com 11 AAV HD XMUX T R AAV SD XMUX T R Rev G 3 1 2 Sources There are eight possible permutations of the switches Seven of the permutations choose the input sources One of the settings off off off is used to disable the group embedding or set the AES outputs to silence Table 1 Switch encoding Outputs to Embedders External outputs Group 1 Grou
20. nevicn AAV HD XMUX T R AAV SD XMUX T R HD SD analog digital audio embedder User manual Rev G AAV HD XMUX T R AAV SD XMUX T R Rev G Nevion Support Nevion Europe Nevion USA P O Box 1020 1600 Emerson Avenue 3204 Sandefjord Norway Oxnard CA 93033 USA Support phone 1 47 33 48 99 97 Toll free North America 866 515 0811 Support phone 2 47 90 60 99 99 Outside North America 1 805 247 8560 E mail support nevion com See http www nevion com support for service hours for customer support globally Revision history Current revision of this document is the uppermost in the table below Rev Repl Date Sign Change description AR Cover page update DoC removed no other G o ANTAUIS ME changes to content 6 5 2011 03 08 AA Updated Declaration of Conformity en Added A D gain setting table new DIP switch routing E 4 Se dsc table 600 ohm backplane option 4 3 2009 01 06 NBS Corrected LED descriptions in Chapter 5 1 3 2 2008 12 18 MDH Dip switch description corrected ee Video input manual mode described Embedding 2 1 enna te BR core diagram changed LED chart corrected 1 0 2008 07 11 NBS Updated formats to company standard 0 2007 06 05 MDH i revision derived from AV HD XMUX manual nevion com 2 AAV HD XMUX T R AAV SD XMUX T R Rev G Contents 1 Product overview nana 4 ET FRU signal HOW oa O MEO art ae ahaa REAR RR ND
21. on usually only goes one direction so any desired return path must be created by the user with another circuit Return data may be sent over fiber via a link comprising of AV HD XMUX AAV HD XMUX AAV HD DMUX AES D422 or D422 MG modules The data input on the back panel works in one of two modes 1 UART Mode The data is checked for correct reception according to the configuration The data words are packaged and sent when present 2 Raw sampling mode The data input is sampled at 93 75 kHz and embedded as a data stream No checking is performed 3 3 1 Data latencies The data channel has a total latency of approximately 30us when using raw sampling Normal data rates of up to 9600 may be used with raw data sampling to have a low latency The latency is 500us when using the normal data encoding due to the block structure of the AES User bits The configuration of the data channel is always stored in the module and used regardless of the GYDA override switch 3 3 2 Embedding The AAV HD XMUX has a RS422 data input for the embedding of control data The baud rate and other parameters are configured with GYDA The factory default is 115200 baud no parity one stop bit The data channel is encoded in the User bits in an embedded audio stereo signal assigned with GYDA The factory default is Audio channels 1 amp 2 in Group 1 The data is sampled asynchronously at a constant bit rate The range of baud rates that may be transmitted is from
22. orted The AAV HD XMUX automatically uses the group router whenever possible when controlled with the DIP switches Shuffling of groups is when existing embedded audio groups are re assigned to different groups Copying of groups is also possible i e Group 1 may be transported to Group 1 and duplicated to Group 2 This function also takes place in the group router which means that there is no extra delay 3 2 5 Audio generator The stereo audio generator is available in the audio router as a source It is a high purity 1 kHz sine wave with a 250ms interruption on the left channel every 3 seconds The audio level may be set to one of two standards The two levels are 18 dBFS and 20 dBFS These two levels correspond to EBU R68 and SMPTE RP 155 3 2 6 Video generator The video generator has several different simple signals Color bar 100 white 75 colors no set up level Red Green Blue or Black full field The generator may be used as a backup video source if there is no video signal present at either of the video inputs The generator may also be switched on with GYDA This will override video input but the generator signal will be locked to the input The video standard of the generator may be set with GYDA but only if there is no video input present nevion com 15 AAV HD XMUX T R AAV SD XMUX T R Rev G 3 2 7 Video input switching The default mode of operation is auto switch between the optical and electr
23. ouple of other important settings Other stored settings such as data embedding and generator settings will always be used 3 1 4 4 LED mode SW2 7 The switch controls how the two audio LEDs function If the switch is off the LEDs show the AES receiver status If the switch is on the LEDs show the presence of embedded groups 3 1 4 5 EDH insert SW2 8 SD video output from the module will only contain an EDH packet if SW2 8 is on 3 1 4 6 Fallback generator control SW3 7 This switch is used to control the outputs when the input signals are not present SW3 7 on The Video output will be disabled if the input signal is removed The AES outputs will be disabled if the source routed to that output is not present The input presence is embedded in the embedded audio data packet so that an AES input failure on a distant card will disable an AES output which uses audio embedded by that distant card SW3 7 off The internal video generator will be used as an input until a valid video signal is detected on one of the inputs The AES outputs without a source signal present will always be on but the signal will be silence 3 1 4 7 120 24 bit SD SW3 8 SD video will contain embedded audio with a word length of 24 bits if SW3 8 is on SD video will contain embedded audio with a word length of 20 bits if SW3 8 is off HD video will always contain embedded audio with a word length of 24 bits 3 2 GYDA Control Full control of the stereo audio
24. p 2 Group 3 Group 4 AES1 2 Out Switch 1 Switch 1 Switch 2 Switch 2 Switch 3 123 456 123 456 123 Group 1 001 001 001 001 001 From De Group 2 010 010 010 010 010 embedders Group 3 011 011 011 011 011 Group 4 100 100 100 100 100 ADC1 2 101 101 101 101 101 AES1 2 110 110 110 110 110 Stereo Tone 111 al 111 111 111 No Output 000 000 000 000 000 1 on 0 off 3 1 3 Examples insert v a Lu x 2 E a EDH Figure 3 Example 1 The module above Figure 1 is set to the following Group1 output is embedded with signals from the ADC inputs Group2 output is embedded with signals from AES1 amp 2 inputs Group3 output is embedded with signals from de embedded group3 Group4 output is not embedded AES1 amp 2 outputs signals from de embedded group1 nevion com 12 AAV HD XMUX T R AAV SD XMUX T R Rev G LEDs insert o mi e C o U a un a a T Q z DMUX EDH Figure 4 Example 2 The module above Figure 4 is set to the following Groupi output is embedded with signals from de embedded group1 Group2 output is embedded with signals from the ADC inputs Group3 output is embedded with signals from AES1 amp 2 inputs Group4 output is not embedded AES1 amp 2 outputs signals from de embedded group1 Users familiar with binary numbers may see that numbers 1 to 4 001 to 100 correspond to groups 1 to 4 3 1 4 Other
25. r shuffle groups without introducing any additional delay The inputs or sources in the stereo router are from the de embedded audio groups the AES and analog audio inputs the delay line outputs and the two built in generators The stereo router outputs or destinations are the groups of embedded audio in the output video the AES outputs and the delay line inputs A normal de embedder configuration would route the de embedded audio to the AES outputs A normal embedder configuration would be to route the audio inputs to the appropriate embedder group outputs The AAV HD XMUX module can do both at the same time Many other configurations are possible and the module may be dynamically controlled as an 18x14 audio router via the system controller GYDA Full control of the module is performed with the GYDA system controller Controls only possible with GYDA are The data transmission parameters and channel selection The output processing of each stereo signal LR RL LL RR MS Sum OLR LOR The delay lines delays and routing Video and audio generator configuration ATTENTION The switch settings are only read when the module is powered up 3 1 DIP switch Configuration Full hardware control of all of the parameters in the module would require either a complicated menu type of control interface with a display and control buttons or an enormous number of switches In many cases most of the parameters will not be changed fro
26. signal Electrical video Optical video Module has not status absent signal present signal Present been programmed Audio status 1 na na Always on Module has not Switch 2 7 off A D converter is been always on programmed Audio status 2 Switch 2 7 off AES input 1 amp 2 not present Either AES input 1 or 2 present AES input 1 amp 2 both present Module has not been programmed Audio status 1 Switch 2 7 on Group 1 amp 2 not present Either group 1 or 2 present Group 1 8 2 both present Module has not been programmed Audio status 2 Switch 2 7 on Group 3 amp 4 not present Either group 3 or 4 present Group 3 amp 4 both present Module has not been programmed nevion com 20 AAV HD XMUX T R AAV SD XMUX T R Rev G 5 2 GPI alarms Only three alarms are present on the 8P8C Modular jack connector as four of the pins are used for the RS422 data port The three alarms are Power present negative logic Video signal lost Laser failure An active alarm condition means that the transistor is conducting The power present alarm should always be active during normal operation nevion com 21 AAV HD XMUX T R AAV SD XMUX T R Rev G 6 Laser safety precautions These are guidelines to limit hazards from laser exposure All the available EO and T units in the Flashlink range include a laser Therefore this note on laser s
27. this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ T11363 2006 X Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ T11363 2006 This is indicated by the product marking A 2 Recycling information Nevion provides assistance to customers and recyclers through our web site http www nevion com Please contact Nevion s Customer Support for assistance with recycling if this site does not show the information you require Where it is not possible to return the product to Nevion or its agents for recycling the following general information may be of assistance Before attempting disassembly ensure the product is completely disconnected from power and signal connections All major parts are marked or labeled to show their material content Depending on the date of manufacture this product may contain lead in solder Some circuit boards may contain battery backed memory device nevion com 25
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