User`s guide

User’s Guide DMC-842 © RME

1. Introduction

The DMC-842 is both an AES/EBU interface as well as a controller for digital microphones. The

unique device allows for connection and control of up to 8 digital microphones, and converting

their signals to ADAT, AES/EBU, analog and (optional) MADI. Eight switchable hi-end sample

rate converters offer a flexible clocking and further usage options.

When developing the DMC-842, RME worked closely with the microphone manufacturers to

secure maximum compatibility and best functionality. As a result the DMC-842 is the most flexi-

ble and most compatible AES42 interface available – a true milestone for the broad acceptance

of the new digital microphone technology.

2. Package Contents

Please check that your DMC-842 package contains each of the following:

• DMC-842

• Power cord

• Manual

• RME Driver CD

• 1 optical cable (TOSLINK), 6.6 ft (2 m)

3. Brief Description and Characteristics

The DMC-842 is an 8-channel interface for AES42 digital microphones, with full remote control-

lability and optional MADI I/O. In a standard 19" box with 2 unit height the device offers numer-

ous extraordinary features like MultiMode, Intelligent Clock Control (ICC), SyncCheck, Steady-

Clock, MIDI over MADI, and remote control via AES, MADI and MIDI.

• 8 XLR AES/EBU inputs

• 8 balanced XLR line outputs

• 8-channel 24 bit sample rate conversion

• Fully compatible to AES42

• Digital Phantom Power switchable per input

• Supports Mode 1 and Mode 2

• Gain adjustable per channel, even in asynchronous Mode 1

• Future-proof by flash updates

• LED level meter with 13 LEDs per channel

• Noise suppression on power-on and power-off at the analog outputs

• M/S decoding/encoding

• Fully remote controllable

• Word clock input and output

• SyncCheck tests and reports the synchronization status of the clock signals

• SyncAlign guarantees sample aligned and never swapping channels

• MIDI I/O

• 4 x AES/EBU Out per D-sub, 8 channels @ 192 kHz

• 2 x ADAT Out, 8 channels @ 96 kHz

• Optional MADI I/O (I64 MADI Card)