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DEVICE DESCRIPTIONS
PROANNOUNCE System User Handbook 1.1
5-65
5.4.7 DCS 420 PROANNOUNCE MONITOR MANAGER
This monitor module (2 HU) is for mounting in PA-system rack-shelves. It is used for acoustically and optically
monitoring power amplifier outputs (monitoring) as well as for pre-listening to DPM 4000 input signals in a
PROANNOUNCE system installation. The DCS 401 controller controls the DCS 420.
Features
· Loudspeaker 1W
· 6.3 mm stereo phone-type headphones jack
· 3-digit 7-segment display for source selection and volume setting
· LED-bar graph meter instrument for monitoring and setting audio levels
· Input transformers allow galvanic separation of the audio signal path
· Detachable mounting plate for installing different connectors of the PA-central unit
· Selector switch for selecting external or internal (from the DCS401) supply voltage sources
Installation Note
Mounting the module and establishing the connections are solely admissible when performed in accordance to VDE
0100 and EN 60065 regulations.
Specifications:
Operating voltage 24V DC, -10 / +30%
Operating current 250 mA (max)
Standby operating current (dark) 75 mA
Operating temperature range +5° C ... +40° C
Dimensions (W x H x D) 19" 2HU 483 x 88 x 103 mm
Weight 2.1 kg
Audio input:
Input voltage (0 dB LED) 650 mV / -1.5 dBu
Max. input voltage 5.0 V / +16 dBu
Input impedance 2 k ohms
Audio output:
Monitor loudspeaker 1 W
Output voltage, phones max. 2 V / 8.2 dBu
Output impedance, phones 10 Ohm
Frequency response, phones jack 20Hz ... 20kHz, -3dB
S/N ratio > 80 dB
Distortion 1% (1kHz)