Dynacord DPM 4000 manual 5.1.7 2-ChannelMIC/LINE Input Module NRS, Dpm - Mli

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.

DPM - MLI

GAIN

A

M IC/

LINE

IN

Input channels can be switched separately onto the	B
monitor bus and you can listen to the signal via
headphones or loudspeaker, either which is being
connected to the monitor output. Automatic pilot tone
surveillance of the entire input stage is integrated as well.

MIC/

LINE

IN

GAIN

90217

figure 5.15 2-channel MIC/LINE input module

Specifications:

description	DPM-MLI	2-channel MIC/LINE input module, NRS 90217
connections	2 x XLRF-type connectors
audio
inputs	2 x electronically balanced, transformers are optionally available
nominal input level	MIC:	-54 dBu ... -14 dBu /	1.5 mV ... 155 mV
	LINE:	-24 dBu ... +16 dBu /	50 mV ... 5 V
max. input level	MIC:	+5 dBu / 1.4 V
(in limiter operation)	LINE:	+30 dBu / 25 V
input impedance	MIC:	3.6 k￿
	LINE:	10 k￿
Input balancing	> -30 dB
phantom power	24V / 20 mA, switched via jumper
frequency response	20 Hz ... 20 kHz, ￿ 0.5 dB
S/N ratio	> 95 dB (A-weighted)
distortion	< 0.01 %
A/D-conversion	18-bit linear, Sigma-Delta
phantom power	24V / 20 mA, switched via jumper
power consumption	3 W
operational temperature range	+5 ￿C ... +40 ￿C
dimensions W x H x D	37.5 x 81 x 252 mm
weight	160 g (186 g including 2 x NRS 90233)
extensions	NRS 90233 input transformer for 1 MIC/LINE input, order-No. 121 682

5-14 PROANNOUNCE System User Handbook 1.1