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RME Audio ADI-4 DD User manual
Summary of ADI-4 DD
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User's guide adi-4 dd syncalign tm synccheck tm intelligent clock control tm steadyclock tm hi-precision 24 bit / 96 khz aes / adat dual format converter 8-channels adat ® optical from / to aes/ebu interface aes-3 24 bit interface.
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2 user's guide adi-4 dd © rme contents 1 introduction ........................................................................................................ 3 2 supplied contents ............................................................................................. 3 3 brief description and...
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User's guide adi-4 dd © rme 3 1. Introduction with the adi-8 dd you have an incredibly compact and flexible digital interface to your supply. What at first looks like a simple aes/adat format converter, turns out to be a universal problem solver at a closer look. From small project studios to broadc...
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4 user's guide adi-4 dd © rme 4. Technical specifications • power supply: external power supply, 100-240 v ac, 10 watts • accepted power supply voltage: dc 7 v – 38 v, ac 7 v – 27 v • current at 12 v: > 400 ma (> 5 watts) • dimensions: 215 x 44 x 100 mm • weight: 1 kg 4.1 inputs aes/ebu • 1 x xlr, 4...
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User's guide adi-4 dd © rme 5 4.2 outputs aes/ebu • 1 x xlr, 4 x via 25 pin d-sub, transformer balanced, ground-free, according to aes3-1992 • output voltage professional 4.5 vss, consumer 2.1 vss • format professional according to aes3-1992 amendment 4 • format consumer (spdif) according to iec 609...
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6 user's guide adi-4 dd © rme 5. First usage 5.1 quick start the user interface of the adi-4 dd 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...
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User's guide adi-4 dd © rme 7 5.2 operation join us for a small 'tour de adi', starting on the left side with the choice of the currently used input for the input channels 1/2. This is done via the key aes 1. Options are the xlr socket on the rear, the 25 pin d-sub connector, and the optical input i...
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8 user's guide adi-4 dd © rme 6. The aes to adat converter 6.1 general this functional unit is an 8-channel format converter from aes to adat. As long as the device is not working in ds mode (double speed), the output signal is present at both adat (out 1/out 2). Therefore the adi-4 dd can pass on a...
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User's guide adi-4 dd © rme 9 notes on special functions the second adat input (in 2) can be selected as source of channels 1/2 by the key aes 1, in case an optical spdif signal is present. This allows for example to convert the signal of a cd- player into adat format. Of course, a simultaneous conv...
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10 user's guide adi-4 dd © rme 7. The adat to aes/ebu converter 7.1 general this functional unit is an 8-channel format converter from adat to aes/ebu. Because the double wire and sample split (s/mux) formats don't contain a coding, the adi-4 dd cannot distinguish them from normal (44.1/48 khz) mate...
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User's guide adi-4 dd © rme 11 7.3 input state display the input state is being displayed by means of 4 leds. Each input has its own sync led. When sync is set to adat, a missing or invalid input signal is indicated by slow flashing of the adat led. If in 1 and in 2 are not synchronous to each other...
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12 user's guide adi-4 dd © rme notes on special functions using the aes state key the second adat output can be configured to act as optical spdif output. When choosing aes state opt., the red led is lit constantly, and the channels 1/2 will also be transmitted via out 2. 7.5 double wire conversion ...
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User's guide adi-4 dd © rme 13 8. Clock section 8.1 clock configuration the adi-4 dd has a common clock section for both converters, with professional capabilities that are hard to meet. The unique icc technology (intelligent clock control) offers professional features with simplest usage. All optio...
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14 user's guide adi-4 dd © rme 8.3 word clock input and output input the adi-4 dd's word clock input is active when sync wc is chosen. The signal at the bnc input can be single or double speed, the adi-4 dd automatically adapts to it. As soon as a valid signal is detected, the wc led is constantly l...
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User's guide adi-4 dd © rme 15 9. Word clock 9.1 operation and technical background in the analog domain one can connect any device to another device, synchronization is not necessary. Digital audio is different. It uses a clock, the sample frequency. The signal can only be processed and transmitted...
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16 user's guide adi-4 dd © rme 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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User's guide adi-4 dd © rme 17 10. Conversion modes and notes in this chapter the adi-4 dd's conversion modes are listed. 10.1 8-channel aes to adat converter (96 khz) source: aes remark: for sample rates higher than 56 khz the ds led lights up, and the outputs automati- cally work in sample split m...
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18 user's guide adi-4 dd © rme 10.6 4-channel aes single wire to aes double wire converter (96 khz) source: aes remark: when ds is not active and the input signal is in single wire double speed format, the data will be converted to double wire single speed. Because only 8 physical output channels ar...
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User's guide adi-4 dd © rme 19 11. Technical background 11.1 ds - double speed when activating the double speed mode the adi-4 dd 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 khz were n...
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20 user's guide adi-4 dd © rme 11.2 aes/ebu - spdif the most important electrical properties of 'aes' and 'spdif' can be seen in the below table. Aes/ebu is the professional balanced connection using xlr plugs. The standard is being set by the audio engineering society based on the aes3-1992. For th...
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User's guide adi-4 dd © rme 21 12. Controls and connectors front rear signal source xlr sub-d optical status display lock of inputs double speed audio level clock source word clock adat aes double speed word clock aes status aes output professional consumer optical output aes 1 input / output adat/s...
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22 user's guide adi-4 dd © rme 13. Connector pinouts d-sub the 25 pin d-sub connector provides all 4 aes inputs and outputs. The actual pinout is defined by a special coding connector within the adi-4 dd. To gain access to the coding connector, the cover has to be removed. The coding connector is at...
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User's guide adi-4 dd © rme 23 aes/ebu the xlr connectors are wired according to aes3-1992: 1 = gnd (shield) 2 = signal 3 = signal aes/ebu and spdif are biphase modulated signals, therefore polarity doesn't matter. Pins 2 and 3 are neither hot nor cold, they carry the same signal. But as aes3 uses a...
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24 user's guide adi-4 dd © rme 14. Block diagram.
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User's guide adi-4 dd © rme 25 15. Warranty each individual adi-4 dd undergoes comprehensive quality control and a complete test at imm before shipping. The usage of high grade components should guarantee a long and trouble-free operation of the unit. If you suspect that your product is faulty, plea...
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26 user's guide adi-4 dd © rme 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. Fcc this equipment has been tested and f...