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- ADI-648
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RME Audio ADI-648 User manual
Summary of ADI-648
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User's guide adi-648 multichannel audio digital interface syncalign tm synccheck tm intelligent clock control tm steadyclock tm hi-precision 24 bit / 192 khz 64 channel madi / adat converter 16 x 16 matrix router midi embedded in madi firmware 2.5 or up madi 24 bit interface.
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2 user's guide adi-648 © rme important safety instructions ........................................................................... 3 1 introduction ........................................................................................................ 5 2 package contents .........................
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User's guide adi-648 © rme 3 important safety instructions attention! Do not open chassis – risk of electric shock the unit has non-isolated live parts inside. No user serviceable parts inside. Refer service to qualified service personnel. Mains • the device must be earthed – never use it without pr...
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4 user's guide adi-648 © rme.
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User's guide adi-648 © rme 5 1. Introduction with the adi-648 you have an incredibly versatile digital interface to your supply. What at first looks like a simple madi to adat format converter, turns out to be an extremely flexible prob- lem solver at a closer look. From small project studios to bro...
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6 user's guide adi-648 © rme 4. Technical specifications • power supply: internal switching psu, 100 - 240 v ac, 20 watt • typical power consumption: 9 watt • dimensions including rack ears (wxhxd): 483 x 44 x 242 mm (19" x 1.73" x 9.5") • dimensions without rack ears/handles (wxhxd): 436 x 44 x 235...
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User's guide adi-648 © rme 7 midi • 16 channels midi • 5-pin din jack • optocoupled, ground-free input • invisible transmission via user bit of channel 56 (up to 48 khz) • invisible transmission via user bit of channel 28 (96k frame) 4.2 outputs madi • coaxial via bnc, 75 ohm, according to aes10-199...
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8 user's guide adi-648 © rme 5. First usage 5.1 quick start the user interface of the adi-648 is characterized by a clearly structured architecture and an unambiguous labelling of the front and rear sides. The device can thus be used easily without a manual, because numerous leds show the state of t...
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User's guide adi-648 © rme 9 5.3 operating the adi-648 join us for a small 'tour de adi', starting on the left side at the madi to adat converter. Con- figuration starts with choosing the input, bnc or optical. The state of the input signal is dis- played by 14 leds. Shown are active input, automati...
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10 user's guide adi-648 © rme 6. The madi to adat converter 6.1 general this part of the adi-648 converts madi to adat optical. Madi offers 64 channels of 24 bit au- dio at up to 48 khz sample rate, 32 channels at up to 96 khz, or 16 channels at up to 192 khz. Transmission happens over a single line...
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User's guide adi-648 © rme 11 6.4 outputs adat optical the adi-648 provides 8 outputs in adat optical format. They are fully compatible to all adat optical inputs. A usual toslink cable is sufficient for connection. With the matrix router de-activated, all madi channels are copied to the 8-channel a...
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12 user's guide adi-648 © rme 7. The adat to madi converter 7.1 general this part of the adi-648 converts adat optical to madi. Adat optical carries 8 channels of 24 bit audio at up to 48 khz sample rate, 4 channels at up to 96 khz, and 2 channels at up to 192 khz. Transmission is done via a single ...
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User's guide adi-648 © rme 13 7.4 outputs madi at the rear side of the adi-648 there are two madi outputs. The bnc output is built according to aes10-1991. The output's impedance is 75 ohms. The output voltage will be 600 mvpp when terminated with 75 ohms. The optical output uses a fddi (iso/iec 941...
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14 user's guide adi-648 © rme int. For internal, 44.1 khz or 48 khz sampling rate is available. Note: the key 96k frame does only affect the format of the madi output, not channel distribution or sample rate of the adat outputs. For the internal clock setting it is mandatory that the clock rate of t...
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User's guide adi-648 © rme 15 8.3 word clock input and output steadyclock guarantees an excellent performance in all clock modes. Its highly efficient jitter suppression refreshes and cleans up any clock signal, and provides it as reference clock at the bnc output (see section 12.4). Input the adi-6...
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16 user's guide adi-648 © rme 9. Word clock 9.1 operation and technical background in the analog domain one can connect any device to another device, a synchronization is not necessary. Digital audio is different. It uses a clock, the sample frequency. The signal can only be processed and transmitte...
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User's guide adi-648 © rme 17 9.2 cabling and termination word clock signals are usually distributed in the form of a network, split with bnc t-adapters and terminated with resistors. We recommend using off-the-shelf bnc cables to connect all devices, as this type of cable is used for most computer ...
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18 user's guide adi-648 © rme 10. Midi 10.1 midi transmission madi allows for a transmission of 64 audio channels over long distances with a single line – perfect. But what about midi? Be it remote control commands or sequencer data, in practice only a single madi line will not suffice. Therefore th...
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User's guide adi-648 © rme 19 10.3 remote control software the windows and mac software midi remote can be downloaded for free from the rme web- site. It can use any existing midi port within the system to perform remote control and status requests of all adi-648 via a simple mouse click. Most appea...
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20 user's guide adi-648 © rme software midi remote in matrix view mode brief description of windows software adi-648 midi remote file – save setup all settings can be stored in a file, and reloaded at any time. This is especially useful to quickly load different routings, or to access different adi-...
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User's guide adi-648 © rme 21 11. Special modes 11.1 madi to madi converter madi has been used for quite some time now and therefore not all interfaces from different manufacturers are compatible with each other. An ams neve logic dfc e. G. Only accepts the 56 channel input format and when a 64 chan...
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22 user's guide adi-648 © rme example 1: a mixing desk sends 48 channels via madi. 16 more channels from two rme oc- tamic-d (8-channel microphone preamps with adat output) shall be recorded by a hdsp madi into a computer. This application requires only one adi-648, which has to be inserted into the...
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User's guide adi-648 © rme 23 12. Technical background 12.1 ds - double speed when activating the 96k frame, the madi output of the adi-648 operates at double sample rate. The internal clock 44.1 khz turns to 88.2 khz, 48 khz to 96 khz. The internal resolution is still 24 bit. Sample rates above 48 ...
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24 user's guide adi-648 © rme 12.3 madi basics madi, the serial multichannel audio digital interface, has been defined already in 1989 as an extension of the existing aes3 standard following several manufacturers' wish. The format also known as aes/ebu, a balanced bi-phase signal, is limited to two ...
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User's guide adi-648 © rme 25 12.4 steadyclock the steadyclock technology of the adi-648 guarantees an excellent performance in all clock modes. Its highly efficient jitter suppression refreshes and cleans up any clock signal, and pro- vides it as reference clock at the word clock output. Usually a ...
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26 user's guide adi-648 © rme 13. Controls and connectors front left part front right part power rear matrix router signal source bnc optisch status display error sync audio matrix router on/off input/output select reset clock source adat madi clock section status display input sync audio clock sour...
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User's guide adi-648 © rme 27 14. Block diagram (excluding midi).
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28 user's guide adi-648 © rme 15. Midi implementation chart adi-648 15.1 basic sysex format value name f0h sysex header 00h 20h 0dh miditemp manufacturer id 64h model id (adi-648) 00h..7eh, 7fh device id. 7fh = broadcast (all ids) mm message type nn parameter number (see table 1) oo data byte f7h eo...
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User's guide adi-648 © rme 29 table 1 no. Name request value set value value response data bytes 00h madi input select x x x 1 byte, 0 = bnc, 1 = optical 01h madi input state x x 1 byte, 0 = normal operation, 1 = redundancy mode 02h madi sync state x x 1 byte, 0 = error, 1 = lock, 2 = sync 03h madi ...
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30 user's guide adi-648 © rme table 2 1st byte bit 0 input 1 audio indication 1st byte bit 1 input 2 audio indication 1st byte bit 2 input 3 audio indication 1st byte bit 3 input 4 audio indication 2nd byte bit 0 input 5 audio indication 2nd byte bit 1 input 6 audio indication 2nd byte bit 2 input 7...
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User's guide adi-648 © rme 31 16. Warranty each individual adi-648 undergoes comprehensive quality control and a complete test at imm before shipping. The usage of high grade components allows us to offer a full two year war- ranty. We accept a copy of the sales receipt as valid warranty legitimatio...
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32 user's guide adi-648 © rme ce / fcc compliance ce this device has been tested and found to comply with the limits of the european council direc- tive on the approximation of the laws of the member states relating to electromagnetic compati- bility according to rl2004/108/eg, and european low volt...