Neumann DMI-8

Neumann DMI-8

Digital Microphone Interface

Neumann O410

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 Neumann DMI-8 Digital Microphone Interface
Neumann DMI-8
Product Code: DMI8
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The Digital Microphone Interfaces in general
Equipment that supports the AES 42 standard can process the output signals of Solution-D microphones directly. In all other cases, the DMI-2 portable or DMI-8 digital microphone interface is used. The DMIs convert the AES 42 data format supplied by the microphone into an AES/EBU signal.

The Interface is operated via the Neumann RCS remote control software, which is installed on a desktop or laptop computer. The computer is connected to the DMI via a USB port and a USB to RS 485 interface converter. If a large number of microphones is used, several DMI-8's can be cascaded. In this case, each digital microphone interface can be addressed individually.

In addition to a word clock input and output, the DMIs also have an internal word clock generator. If no master word clock signal (e.g. from a mixing console) is present at the input, the DMI internal word clock is used automatically to synchronize the microphone channels, and the signal is switched to the word clock output.

External commands such as "On Air" (red light) can be controlled via a 9-pin user port.

The DMI-8
The DMI-8, an eight-channel version of the digital microphone interface is considerably simplifying the setup for multichannel applications.

In addition to the proven functions of the two-channel DMI-2:
- AES 42 to EBU conversion
- Powering, remote control and synchronization of the microphones without a sample rate converter (AES42, mode2)
- Automatic word clock or AES 11 synchronization
- All sample rates, from 44.1 kHz to 192 kHz
- Complete control and storage of the settings via Mac or PC

The DMI-8 also offers the following features:
- The capability of cascading up to 128 channels
- Level meter and gain setting on the front panel, operable even without a computer
- D-sub 25 outputs with Tascam® and Yamaha® pin assignments
- Optical ADAT® interface
- Open architecture for later connection to other multi-channel interfaces and audio networks, such as EtherSound® and MADI

The DMI-8 offers several possibilities for easy integration into audio networks. The ES100 (DMI-8) module permits integration into EtherSound networks.

Explanation Mode 2:
The DMI performs a frequency/phase comparison between the word clock signal recovered from the mic signal, and the word clock of the DMI. From the phase deviation thus determined, the DMI calculates a control signal which is transmitted via the remote control data stream to the mic, where it controls the frequency of the internal quartz oscillator.

Delivery range
Digital Microphone Interface DMI-8
CD with RCS software and USB driver

Order Information
DMI-8 EU silver - Cat. No. 533130
DMI-8 UK silver - Cat. No. 533132
DMI-8 US silver - Cat. No. 533131
Network Module, DMI-8 ES100 - Cat. No. 539398
DMI-8 connection set (USB cable, RJ 45 patch cable, USB 485 converter - Cat. No. 533126

 
Operating temperature 0 °C … +45 °C
Storage temperature –20 °C … +70 °C
Relative humidity max. 90 % at +20 °C
AES42 inputs 8x XLR3F , Audio data in accordance withAES/EBU (AES3) data format, Digital phantom power (DPP)Remote control data
Phantom power (DPP) +10 V, max. 250 mA per channel, short-circuit proof
Remote control data Pulses (+2 V), superimposed on the phantom power, approx. 750 bits/s or 9,600 bits/s (depending on the microphone)
Outputs 2x SUB-D 25, AES/EBU (AES3) data format, Yamaha® and Tascam® pinout,
1x Toslink, ADAT® format up to 48 kHz, 1x RJ 45, GN format up to 192 kHz, incl. power-out pin: approx. +15 VDC, max.1 A, short-circuit-proof
Sampling rates supported 44,1 / 48 / 88,2 / 96 kHz /176,4 kHz/ 192 kHz
Microphone synchronization AES42 – Mode 2 (synchronous mode) Microphone clock control via PLL
DMI-8 Synchronization automatically to an external word clock or AES11 signal, if present, otherwise the internal word clock generator is activated.
Word clock (or AES11) input BNC
- Vin >100 mV at 75 ohms
Word clock (or AES11) output BNC
- Vout = Vin (external synchronization)
- Vout approx. 1.5 V at 75 ohms
(internal word clock generator)
Internal word clock generator 44,1 / 48 / 88,2 / 96 kHz / 176,4 /
192 kHz, Accuracy ±25 ppm
Indicators Power, Ext Word Clock, Valid,Level (microphone)
Control elements 8x Channel SelectGAIN +/–
Control bus 2 x RJ 45 ports; connection to computer USB port via the Neumann USB 485 interface converter; connected in parallel for the purpose of cascading. RS 485 with additional power-out pin (approx. +11.3 V, max. 500 mA)
Device address (ID) 0 to 15, adjustable viacoding switch on the backof the device
User port 9-pin sub-D, 1 switch function per channel (Mute and/or Light 1/Light 2 selectable)
Power supply 90 V to 240 V; 50/60 Hz
Power consumption < 55 VA
Dimensions (W x H x D) 483 x 88 x 210 mm
Weight approx. 2,8 kg
 
 

 

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IC 3 (mt) SG 287
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IC 5 (mt) SG 5
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KK 145 (nx) WNS 100
KK 183 (nx) WNS 110
KK 184 (nx) WNS 120
KK 185 (nx) WS 100
KM 100 WS 2
KM A (nx) WS 47
KM D (nx) WS 69
KT 5 WS 81
KT 8 WS 82
KVF 118 KA WS 87
KVF 158 KA WS 89
KVFF 148 KA WSB
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KVG 130 nx  


 

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KM 184 | KM 185 | KM 183A | KM 184A | KM 185A | KM 133D | KM 183D | KM 184D | KM 185D | KM A | KM D | KMR 81 i | KMR 81 D | KMR 82 i | KMS104 / KMS105 |
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EA 2124 A (mt) | EA 4 (bk) | EA 87 (mt) | EA 89 A (mt) | IC 3 (mt) | IC 4 (mt) | IC 5 (mt) | IC 6 (mt) | IC 7 | K 11 | K 3 x 0.08 | K 3 x 0.2 | K 5 x 0.14 | K 7 X 0.14 |
KA 100 | KK 120 (nx) | KK 131 (nx) | KK 133 (nx) | KK 143 (nx) | KK 145 (nx) | KK 183 (nx) | KK 184 (nx) | KK 185 (nx) | KM 100 | KM A (nx) | KM D (nx) | KT 5 | KT 8 |
KVF 118 KA | KVF 158 KA | KVFF 148 KA | KVG 1120 nx | KVG 130 nx | KVG 160 nx | LC 2 | LC 3 KA | LC 4 | M 210/1 | M 212 c | M 214/1 | M 252 | MCA-ES | MF 2 |
MF 3 | MF 4 | MF 5 | MF-AK | MNV 100 | MNV 21 mt | MNV 87 mt | MTX 191 A | MZEF 8060/8120 | MZGE 8000 | MZGE 8002 | N 149 A | N 248 | PA 100 | PS 15 | PS 20 a |
SBK 130 A | SG 100 | SG 100-1 | SG 105 | SG 109 | SG 110 nx | SG 2 | SG 21 bk | SG 287 | SG 289 | SG 5 | SG-AK | SGE 100 | SMK 100 A | SR 100 | STH 100 | STH 120 |
STV 4/20/40/60 | TF 221 C | WKD-AK | WKE 191 Set | WKE 81 Set | WKE 82 Set | WNS 100 | WNS 110 | WNS 120 | WS 100 | WS 2 | WS 47 | WS 69 | WS 81 | WS 82 | WS 87 |
WS 89 | WSB | Z 26 mt |