SAM64 Installation and User Manual v1.2
Contents
1. u0 2000 0su0n002020 8 Installation 9 Hardware Considerations 9 Power Supply 9 F ses And Ratings ein 9 Unit CONNECTONS ee 9 SD puts ea areas AES3 Outputs MADI Outp tsa een 10 RS 422 10 GPIO Port ETHERNET 11 Setting Up amp Operation 12 BISER Dias rat user 12 Sample Rate Converters nesenesoneenseneensensensensennnnseneen 12 GPIO een 12 SYTICHFOHISALION 12 13 Sync To Video 13 SYNE TOAES 3 sinarna 13 Syne To The SD Inputs 13 Clock Outputs eisen 13 Technical 14 AHM Limited SAM64 User Manual v1 2 3 no a m Important Safety Instructions Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Install with accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not2. SAM64 SDI to AES MADI interface Installation and User Guide Reference To Statement Of Conformity This document confirms that products bearing the CE label meet all the requirements in the directive 2004 108 E and LV directive 2006 95 EC laid down by the Member States Council for adjustment of legal requirements Furthermore the products comply with the rules and regulations from 30 August 1995 referring to the electromagnetic compatibility of devices AHM SAMG64 units bearing the CE label comply with the following harmonised or national standards EMC EN 55103 1 1997 EN 55103 2 1997 Safety IEC 60065 2002 Mains Harmonics EN 61000 3 2 Class 2001 Insulation Class1 For U S A TO THE USER This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference And 2 This device must accept any interference received including interference that may cause undesired operation CAUTION This product satisfies FCC regulations when shielded cables and connectors are used to connect the unit to other equipment To prevent electromagnetic interference with electric appliances such as radios and televisions use shielded cables and connectors for connections 4HM Ltd Milton Keynes United Kingdom April 2010 2 SAM64 User Manual v1 2 User s Notice and disclaimer No part of this manual may be reproduce
3. including its various options for synchronisation and external control Please keep the manual in a safe place once you have installed the SAM64 Important Please register your SAM64 with AHM Ltd on line at www 4hmbroadcast com Registering your unit will help us in providing you with after sales service should the need arise and may also be of assistance in the event of the unit being stolen Environment The SAM64 s range of operating temperature and relative humidity are as follows Temperature O C to 40 C RH 70 maximum non condensing What s In Box Unpacking Unpack the SAM64 with care It is always good idea to store all packaging if practical in case you ever need to return the unit to AHM for any reason The shipping carton should contain the items listed below Please contact your distributor immediately if any of them are missing or damaged e SAM64 SDI to AES MADI audio interface e Instruction manual e IEC AC cables fitted with moulded UK 13 A plugs UK or 2 x mating IEC plugs all other territories 6 SAM64 User Manual v1 2 SAM64 Main Features e De embeds all 16 channels of audio from each of 4 SDI bitstreams e Auto sensing of SDI format on each input e Compatible with all current SDI specifications including SD HD and 2 9 Gbps 3G to 1080p60 e Audio outputs available in 32 x AES3 and G4ch MADI formats at 48 kHz e bitstream available at
4. instructions in the literature accompanying the appliance Caution To prevent fire or shock hazard do not expose this appliance to rain or moisture Important Safety Information This apparatus has no mains switch or other user operated control for disconnecting the AC mains power The mains plugs or the appliance couplers IEC sockets are used as the disconnect devices Either device must remain readily operable and accessible when the apparatus is installed for use This unit includes thermally resettable fuses that are integral to the power supply circuitry but the unit must always be powered from a supply fitted with an HRC type High In Rush Current fuse with a rating of 1 A AHM Limited SAM64 User Manual v1 2 5 Introduction Thank you for buying this AHM product The SAM64 SDI to AES MADI interface is designed to resolve and simplify common audio infrastructure problem encountered in many broadcast facilities de embedding the audio data from up to four SDI Serial Digital Interface video signals and making it available to the user AES3 and MADI formats The is a very high quality product engineered for maximum reliability in professional broadcast environments is intended to be installed and forgotten and left in permanent operation It requires virtually no configuration on installation or adjustment in normal use This manual covers the SAM64 s_ connections and indications
5. both copper BNC and optical ST outputs e MADI output conforms to AES10id 2008 AES3 output to AES3 1992 e Active loop through SDI outputs e Loop through outputs transparent to Dolby D E e Switchable sample rate conversion SRC on all inputs e Audio sync to external wordclock SDI clocks external AES3 or video black and burst e Sync reference outputs in wordclock and AES3 formats e External SRC enable disable via GPI e RS4e22 and Ethernet ports for planned future enhancements e GPO tally outputs indicating SRC status e Two independent PSUs with separate IEC inputs 4HM Limited Front Panel Description PSU SYNC SSS GQ 90908000 5 SDI LOCK SDI Lock LEDs four tri colour LEDs for SDI inputs 1 to 4 Each illuminates when a valid SDI video signal is detected at its input and the colour indicates the interface standard in use as below COLOUR SDI FORMAT YELLOW SD SDI GREEN HD SDI 3650 NO VALID SDI SIGNAL DETECTED Sync source selection a 3 position toggle switch for selecting the audio sync source The switch s down position is latching while its up position is momentary Repeated upward presses on the switch scroll through the possible external sync sources The adjacent amber LEDs indicate the currently selected source When the LED for the desired source is on the switch may be placed in the latching down position to prevent inadvertent further chan
6. care must be taken to ensure that these are not blocked by cables or other equipment when the unit is installed Do not install any other items of equipment immediately above or below to the SAM64 the use of 10 blanking panels is recommended Power Supply Considerations The is fitted with two separate auto ranging switch mode power supplies PSUs The operating voltage range is 90 to 264 V AC 50 60 Hz The internal power rails are diode paralleled to the two supplies and the unit will operate normally if only one PSU is powered or functional For maximum protection when using both PSUs the two AC inlet cables should be connected to mains circuits which are as independent of each other as possible If redundant operation is not required only one AC supply cable need be connected either AC inlet may be used Fuses And Ratings Each of the SAM64 s PSUs has an internal resettable fuse for PSU protection These fuses are not accessible to the user The unit should be powered from a mains supply supplies fitted with an external HRC type fuse High Inrush Current rated at 1 A Unit Connections SDI Inputs The SAM64 can simultaneously de embed the 16 audio channels in each of four separate SDI video signals Four BNC sockets are provided at the rear panel for connecting the SDI inputs The characteristic impedance is 75 The SAM64 is compatible with all SDI formats up to 3G 2 9 Gbps and auto detects between the
7. install this apparatus a confined space such as a bookcase or similar unit e Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating Please ensure adequate space around the apparatus for sufficient ventilation Ventilation should not be impeded by covering the ventilation openings with items such as newspapers tablecloths curtains etc e The apparatus should be located close enough to an AC outlet so that you can easily grasp the power cord plug at any time e An apparatus with Class 1 construction shall be connected to an AC outlet with a protective grounding connection e No naked flames such as lighted candles should be placed on the apparatus 4HM Limited Important Safety Precautions CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL A The lightning flash with arrowhead symbol within equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating instructions and maintenance servicing
8. d transmitted transcribed stored in a database system or translated without the express written permission of 4HM Ltd Documentation kept by the end user for back up purposes is excluded from the above All products and corporate names mentioned in this manual may be registered trademarks or copyrights of their respective companies They are used here for indicative purposes only The information contained in this manual has been carefully checked for accuracy however no guarantee is given with respect to its correctness 4HM Ltd accepts no responsibility or liability for any errors or inaccuracies that may appear in this manual or the products and software described in it Specifications and information contained in this manual are subject to change at any time without notice 2010 4HM Ltd All rights reserved This appliance has a serial number located on the rear panel Please record the model number and serial number here for your records Model Number SAM64 Serial AHM Limited Contents Reference To Statement Of Conformity 2 Important Safety Instructions 4 Important Safety 5 Introduction woven Whats In TH Ba 6 SAM64 Main Features 6 Front Panel amp 7 Rear Panel Description
9. defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Only use with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel 4 Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped SAM64 User Manual v1 2 WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture e Do not expose this apparatus to drips or splashes e Do not place any objects filled with liquids such as vases on the apparatus e Do not
10. dity range 0 max non condensing 14 SAM64 User Manual v1 2 4HM Limited AHM Limited SAM64 User Manual v1 2 15 AHM Limited Box 5420 Milton Keynes MK10 9XZ United Kingdom Tel 44 0 1908 241706 Email info 4hmbroadcast com URL www 4hmbroadcast com
11. ector in the form of a 48 kHz clock signal of 5 V amplitude positive going or at the AES OUT connector the form of an AES3 digital audio signal digital silence These are derived from whichever synchronisation source is selected AHM Limited SAM64 User Manual v1 2 13 Technical Specifications VIDEO INPUTS Connector input impedance 4 x sockets 75 Compatibile formats SDI SD HD 36G compliant with SMPTE 259M 296M 274 292M 424M or 425M VIDEO OUTPUTS Connector output impedance 4 x sockets 75 Format Active re clocked loop through of SDI inputs AUDIO INPUTS Format Connector output impedance Format Compianto s3189 Sampling frequency EEK Connector output impedance coaxial Connector optical Format 64ehannel complant wth Data rate 125 Mbps 25ppm Sample Rate Conversion Sources AES3 input AESS output GPIO port connector input functions A x SRC select shortto graund Output functions SRC status open collecto 85425 Ethernet For possible future use Type re 2 80 264 v ac 50760 Power consumption Connectors 2 x IEC with retaining clips Internal fixed resettable non user accessible Use a 1 A HRC Fuse data externally fused supply Dinensians tw dich 483 x 200 x 44 5 mm 1U 19 x 7 87 x 1 75 inches 1U Wege Operating temperature range O C to 40 Relative humi
12. ges of sync source SWITCH POSITION FUNCTION CENTRE NO ACTION INCREMENTS SYNC UP SOURCE SELECTION DOWN LATCHES Br ne TO CHOSEN SRC control four 2 position toggle switches controlling the four 16 channel output SRCs The switch also enables external GPI control of each SRC SWITCH POSITION FUNCTION SRC OFF BUT UNDER DOWN EXTERNAL GPI CONTROL AHM Limited PSU status two bi colour LEDs confirming the current status of each PSU The LEDs are green in normal operation and flash red if a PSU fault condition is detected SAM64 User Manual v1 2 7 Rear Panel Description 8 SDI video inputs 1 to 4 4 x BNCs internally illuminated green SDI video active loopthrough outputs 1 to 4 4x BNCs internally illuminated red AES3 outputs 37 way female Dsub Co axial MADI output BNC Optical MADI output ST Ext Sync input BNC Wordclock out BNC AES3 sync out BNC GPI O port 9 pin female Dsub RS 422 port 9 pin female Dsub Ethernet port RJ45 AC inputs 2 x IEC sockets SAM64 User Manual v1 2 4HM Limited Installation Hardware Considerations SAM64 is built in 10 19 enclosure is intended to be permanently installed in a standard 19 equipment rack The unit has internal fans and is cooled by natural convection There are ventilation grilles in the top bottom and both sides of the enclosure and
13. m See the Technical Specifications on page 14 for full list of compatible formats Each SDI input has an active loopthrough output to simplify the connection of further equipment The outputs are fully buffered from the inputs and are re clocked The SDI bitstream is otherwise unaltered AHM Limited AES3 Outputs The 64 audio channels de embedded from the four SDI inputs are available as 32 AES3 digital audio outputs on the rear panel 37 way female Dsub connector The outputs are unbalanced but are compliant with AES3 1992 in all other respects The table below gives the pinout OUTPUT AUDIO CHANNELS e Jars o e sos sola chs 11 amp 12 77 e e ne ma feo ne sola Chs 15 amp 16 97 cno S SAM64 User Manual v1 2 9 Note that each AES3 output carries 2 audio channels thus the 16 audio channels embedded in each SDI input generate 8 outputs To aid installation an optional AES Signal Break Out accessory ASBOQ is available from 4HM This consists of a 10 19 panel with 32 BNC sockets prewired to a 37 way Dsub plug This may be mounted at the front or rear of the rack and greatly simplifies wiring MADI Outputs The 64 deembedded audio channels are also available as Multichannel Audio Digital Interface in both co axial and optical formats The MADI bitstream contains all 16 channels from all four SDI inputs The channel numbe
14. m or outside broadcast vehicle using automated system software applications external control of the SRCs can be achieved via the GPIO port Simple contact closure grounding the GPI enables any or all the SRCs allowing them to be switched in or out from a remote point Maximum recommended operating distance is 5 m though this may be increased by the use of external relays or similar Refer to the pinout on page 10 for wiring details Synchronisation The SAM64 offers a choice of wordclock synchronisation sources The selection is made from the front panel and the array of LEDs confirms the currently selected source The selected source is used as reference for all four output SRCs thus ALL audio outputs both in AES3 and MADI formats will be locked to the selected reference The various clock sources are discussed on the following page AHM Limited Sync To Wordclock SRG sync to an external wordclock is indicated by illumination of the WK front panel LED The clock source should be connected to the SYNC IN connector a BNC socket on the rear panel Nominal frequency is 48 kHz 5 and clock pulses should be of 5 V amplitude positive going Sync To Video Black And Burst The SAM64 can also synchronise to a standard SD 1 V black and burst video signal The video signal should be connected to the SYNC IN connector on the rear panel The sync input auto detects NTSC or PAL standard video Sync To AES3 A
15. n AES3 compliant digital audio source may be used as the clock reference source The internal 48 kHz wordclock source is phase locked to the incoming AES3 signal Any audio data contained in the AES3 word will be ignored The audio source should be compliant with AES3 id for 75 coaxial transmission and connected to the SYNC IN connector on the rear panel Sync To The SDI Inputs Any of the four SDI inputs may be used to reference the audio outputs Each two channels of embedded audio in an SDI stream is essentially compatible with an AES3 word format at a sample frequency of 48 kHz and thus this frequency may be extracted and used as the SRC wordclock in the same way as an sync source If one or more pairs of audio channels in an SDI signal is carrying Dolby encoded material the SRC for that input should be set OFF and that input should be the sync referenced source Use the derived wordclock output as the master sync reference for downstream equipment Note If using this method it is important to consider how the remaining three SDI sources synchronise in relation to the sync source If the inputs are asynchronous then they should have their SRCs set to ON This ensures that the audio content will synchronise to the referenced SDI input Note Passing Dolby encoded material through sample rate converters will corrupt the Dolby bitstream Clock Outputs Areference clock output is available at the rear panel WK OUT conn
16. puts MADI Optical Output MADI Coaxial Output Sample Rate Converters The sampling frequency of the audio data embedded in SDI video signals is 48 kHz This is invariant and is enshrined in the defining standards for all SDI formats As with all operations involving digital audio it will generally be desirable for the audio outputs of the SAM64 to be synchronised in frequency and or phase with a master reference clock which will also synchronise all other digital audio processing in the facility To achieve this the SAM64 includes four 16 channel Sample Rate Converters SRCs one for each SDI input see Rear Panel Description on page 8 Each SRC may be switched in or out by a front panel switch lsee Front Panel Description on page 7 or by external control via the GPIO port When each SRC is active a red LED illuminates and a tally output voltage is also available at the rear GPIO port When enabled the SRCs re clock the audio data against a new reference thereby changing the sampling frequency of the data to that of the reference They also ensure that the word blocks in the data are phase locked exactly to the reference clock The SAM64 allows the user to select reference clock source to suit the infrastructure of the facility and the nature of the transfer process See following section on Synchronisation 12 SAM64 User Manual v1 2 GPIO Control As the SAM64 could be installed in a central control roo
17. ring within the MADI bitstream is one to one i e Channel 1 of SDI 1 becomes MADI Channel 1 Channel 2 of SDI 1 becomes MADI Channel 2 and so on for the remainder of SDI 1 s audio channels Then Channel 1 of SDI 2 becomes MADI Channel 17 and the cycle repeats If less than four SDI inputs are in use the MADI bitstream time slots corresponding to the unused inputs will simply contain all zeroes SDI INPUT MADI CHANNELS S011 SDI 2 17 to 32 SDI 33 to 48 SDI 4 49 to 64 The co axial MADI output is on a BNC socket and is compliant with AES10id 2008 The characteristic impedance is 75 at a nominal data rate of 125Mbps Transmission distances up to 50 m are generally achievable The same bitstream is available in optical format on an ST type connector allowing the MADI output signal to be transmitted by fibre if preferred Recommended fibre types are 62 5 125 um or 50 125 um multimode Transmission distances of at least 1000 m are achievable RS 422 Port The SAM64 s rear panel includes an RS 422 port on a 9 pin female Dsub connector This is included to allow the future possibility of bi directional external control of various unit functions This functionality is not currently implemented 10 SAM64 User Manual v1 2 GPIO Port A GPIO General Purpose Input Output port is available at the rear panel in the form of a 9 pin female Dsub connector This has four inputs and four outputs and allows the SAM64 s four o
18. utput SRGs Sample Rate Converters to be enabled from external control equipment by contact closure Tallies confirming the SRC status are also available on this connector Pinout is as follows The GPI inputs are opto isolated internally and activate when the pin is connected to O i e connect pins 1 4 to pin 5 to activate Vcc OPTO ISOLATED INPUTS 1 PIN 5 PINS 2 4 ARE IDENTICAL AHM Limited The tally outputs are open collector type with transistors rated at 24 V The tallies will typically be used to drive LEDs connect the cathode of the LED to the tally output and the anode via a suitable resistor to an external DC voltage of not more than 24 V The V reference of the external DC voltage should be connected to pin 5 OPEN COLLECTOR TALLY OUTPUTS EXT PSU PIN 6 DV PIN5 PINS 7 9 ARE IDENTICAL ETHERNET Port The SAM64 includes a standard Ethernet port an RJ45 socket This allows the future possibility of various unit control and monitoring functions This functionality is not currently implemented AHM Limited SAM64 User Manual v1 2 Setting Up amp Operation Block Diagram Auto sensing SDI 1 4 inputs De embedder Local and remote control of SRCs Sample rate converters with bypass Sync References Inputs amp Outputs MADI interface SDI SDI 1 4 Loop through outputs SDI Lock LEDs SRC On LEDs AES out
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