Extension Specifications; Nrs 90225 General Input Module; Nrs 90222 Remote Module; Nrs 90208 Input Transformer For Floating, Balanced Input - Dynacord Power Amplifier DPA 4120 Owner's Manual

13. Extension kit specifications for the power amplifiers DPA 4120 / DPA 4140
13.1 NRS 90225 standard input module
see specifications DPA 4120 / DPA 4140
13.2

NRS 90222 remote module

see specifications DPA 4120 / DPA 4140
13.3

NRS 90208 input transformer for floating, balanced input

frequency response
input impedance
idling ratio
winding resistance; primary
winding resistance; secondary
13.4

NRS 90227 output transformer for floating, balanced monitor output

frequency response
nominal load impedance
idling ration
winding resistance; primary
winding resistance; secondary
13.5 NRS 90224 pilot tone & ground fault surveillance
13.5.1 pilot tone surveillance
pilot tone frequency
error recognition threshold
fault message output via NRS 90225
fault message output via NRS 90222
13.5.2 ground fault surveillance
input loudspeaker line 4 ohms / 50V / 70V / 100V
fault message output via NRS 90225
fault message output via NRS 90222
disruptive strength
error recognition threshold
20 Hz .. 20 kHz
10 k ohms
1:1
1420 ohms at 20°C
1420 ohms at 20°C
40 Hz .. 20 kHz
600 ohms
1:1
18 ohms at 20°C
18 ohms at 20°C
19 kHz ± 1%
12 mV
collective fault message via READY relay
PROMATRIX manager DPM 4000
collective fault message via READY relay
PROMATRIX Manager DPM 4000
1000 Veff
50 k ohms
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