Operating instructions

Bosch Security Systems | 2003-09 | 3922 988 99482en
Plena Universal Pre-amplifier | Installation and Operating Manual | en | 18
6.4 Outputs
Direct outputs 1-4 (3-pin XLR, balanced)
Nominal level 1 V
Impedance <100 Ohm
Master output (3-pin XLR, balanced)
Nominal level 1 V
Impedance <100 Ohm
Master output (5-pin DIN, balanced)
Nominal level 4 mV (microphone level)
Impedance <100 Ohm
Tape output (Cinch, 2x mono)
Nominal level 350 mV
Impedance <1 kOhm
Headphone output (6.3 mm jack stereo, signal mono)
Nominal level 3 V
Impedance <100 Ohm
6.5 Interconnection
Interconnection/emergency input (3-pin XLR, balanced)
Sensitivity 200 mV (interconnection)
100 mV - 1 V adjustable (emergency)
Impedance >10 kOhm
VOX threshold 45 mV (emergency)
Interconnection output (3-pin XLR, balanced)
Nominal level 200 mV
Impedance <100 Ohm
6.6 Relays
Priority relay contacts 30 V, 1 A
Emergency relay contacts 30 V, 1 A
DC supply output voltage 24 V, 250 mA max
6.7 Environmental conditions
Operating temperature range -10 to +55 °C
Storage temperature range -40 to +70 °C
Relative humidity <95 %
6.8 General
EMC emission acc. to EN 55103-1
EMC immunity acc. to EN 55103-2
Dimensions 100 x 430 x 270 mm (19" wide, 2U high)
Weight approx. 5 kg
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