Manual

14
EN
phones connected to the DMI-8 must always be
operated in synchronous mode, whether or not
sample rate converters are used in the subse-
quent signal chain. The transmission of none syn-
chronized microphone signals is not supported by
the DMI-8.
Ensure correct fastening of the connectors when
connecting the cables.
Lay the cables in such a way that they do not pres-
ent a tripping hazard.
Updating of fi rmware
The fi rmware in the DMI-8 and in the Neumann
microphones is updatable. Updates can be per-
formed without opening the equipment, via the
RCS control software (see the RCS Operating
Manual).
6. Technical data
Permissible atmospheric conditions
1)
Operating temperature .....................0 °C to +45 °C
Storage temperature .....................–20 °C to +70 °C
Relative humidity ...................max. 90 % at +20 °C
AES42 inputs: .........................................8x XLR3F ,
Audio data in accordance with
AES/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 / 192 kHz
1)
All values are for non-condensing humidity.
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. 3 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 Select
GAIN +/–
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 via
coding switch on the back
of 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