Dynacord PROMATRIX System Reference Manual page 26

DEVICE DESCRIPTIONS
5.1.7 2-Channel MIC/LINE Input Module (NRS 90217)
This 2-channel audio input module is meant for the
connection of external audio sources, like microphones,
mixers, etc. Both channels are furnished with XLRF-type
connectors. The module can be installed into slot 1 and
slot 2.
The sensitivity of the MIC / LINE inputs can be adjusted
in a wide range. The internal MIC / LINE switches (PADs)
provide 30 dB attenuation. The separate GAIN-controls
for each channel provide additional control in a range of
40 dB. The MIC / LINE inputs are electronically balanced
and can be retrofitted with transformers. Phantom power
can be switched via jumper setting. If necessary,
compressors / limiters can also be incorporated in the
audio paths via jumpers.
Input channels can be switched separately onto the
monitor bus and you can listen to the signal via
headphones or loudspeaker, either which is being
connected to the monitor output.
Specifications:
description
connections
audio
inputs
nominal input level
max. input level
(in limiter operation)
input impedance
Input balancing
phantom power
frequency response
S/N ratio
distortion
A/D-conversion
phantom power
power consumption
operational temperature range
dimensions W x H x D
weight
extensions
5-14
figure 5.15 2-channel MIC/LINE input module
DPM-MLI 2-channel MIC/LINE input module, NRS 90217
2 x XLRF-type connectors
2 x electronically balanced, transformers are optionally available
MIC: -54 dBu ... -14 dBu / 1.5 mV ... 155 mV
LINE: -24 dBu ... +16 dBu / 50 mV ... 5 V
MIC: +5 dBu / 1.4 V
LINE: +30 dBu / 25 V
MIC: 3.6 kΩ
LINE: 10 kΩ
> -30 dB
24V / 20 mA, switched via jumper
20 Hz ... 20 kHz, ± 0.5 dB
> 95 dB (A-weighted)
< 0.01 %
18-bit linear, Sigma-Delta
24V / 20 mA, switched via jumper
3 W
+5 °C ... +40 °C
37.5 x 81 x 252 mm
160 g (186 g including 2 x NRS 90233)
NRS 90233 input transformer for 1 MIC/LINE input, order-No. 121 682
DP M - M L I
GAI N
A
M IC /
L IN E
IN
B
M IC / M IC /
L IN E L IN E
IN IN
GAI N
9 02 17
PROMATRIX System User Handbook 1.1