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 the 9-pin user port of the DMI-2 and DMI-8.
It supports two digital microphones and allows adjustment of the Gain, Pre Attenuation and Low Cut filter settings at the device. The front panel display shows the selected gain and, by means of bar graphs, shows the current signal level and any gain reduction. Of course, these functions can also be operated via the RCS software, which allows complete access to all of the microphone parameters.
Microphone presets can be stored inside the DMI-2 portable and recalled for use in the field.
|1 x Digital Microphone Interface DMI-2 portable|
|1 x CD with RCS software and USB drivers|
|DMI-2 portable||silver||Cat. No. 542404|
|Ports||2x AES42 IN (XLR3F),
1x AES/EBU (AES3) OUT (XLR3M),
2x Word Clock IN/OUT (BNC),
1x Remote Control (USB)
|Indicators||Monochrome display, bar graphs for gain, level and gain reduction, LED’s for Power, Battery status, Synchronization and Valid|
|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)|
|Microphone synchronization||AES42 – Mode 2 (synchronous mode) Microphone clock control via PLL|
|DMI-2 portable 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|
|Control elements||2x push-switch rotary encoder|
|CTL (Control interface)||1x USB port|
|Power supply||DC 10-18 V (Hirose) , NP1 rechargeable battery or AC/DC converter|
|Power consumption||< 8 VA|
|Dimensions||(W x H x D) 186 x 44 x 126 mm|
|Weight||approx. 625 g|