Dynacord extension kits for the DPA 4120 and DPA, 13.2NRS 90222 remote module, 13.5.2

interfering voltage (A)

features of the monitor output: nominal output voltage nominal load impedance

ambient temperature range dimensions (W x H x D) depth with / without connections weight without extensions finish

£1.2 mV = -56 dBu electronically balanced 2 V = + 8.2 dBu

600 ohms

+5 °C .. +40 °C

483 x 132 x 345 mm max. 400 mm / 340 mm

16.7kg

anthracite

extension kits for the DPA 4120 and DPA 4140:
NRS 90208 input transformer for floating, balanced input	Art. No.	121 641
NRS 90222 remote module	Art. No.	121 674
NRS 90224 pilot tone & ground fault surveillance	Art. No.	121 676
NRS 90225 standard input module	Art. No.	121 677
NRS 90227 output transformer for floating, balanced monitor output	Art. No.	121 679

13.Extension kit specifications for the power amplifiers DPA 4120 / DPA 4140

13.1NRS 90225 standard input module see specifications DPA 4120 / DPA 4140

13.2NRS 90222 remote module

see specifications DPA 4120 / DPA 4140

13.3NRS 90208 input transformer for floating, balanced input

frequency response	20 Hz .. 20 kHz
input impedance	³ 10 k ohms
idling ratio	1:1
winding resistance; primary	1420 ohms at 20°C
winding resistance; secondary	1420 ohms at 20°C

13.4NRS 90227 output transformer for floating, balanced monitor output

frequency response	40 Hz .. 20 kHz
nominal load impedance	³ 600 ohms
idling ration	1:1
winding resistance; primary	18 ohms at 20°C
winding resistance; secondary	18 ohms at 20°C

13.5NRS 90224 pilot tone & ground fault surveillance

13.5.1 pilot tone surveillance
pilot tone frequency	19 kHz ± 1%
error recognition threshold	£ 12 mV
fault message output via NRS 90225	collective fault message via READY relay
fault message output via NRS 90222	PROMATRIX manager DPM 4000

13.5.2	ground fault surveillance
input	loudspeaker line 4 ohms / 50V / 70V / 100V
fault message output via NRS 90225		collective fault message via READY relay
fault message output via NRS 90222		PROMATRIX Manager DPM 4000
disruptive strength		1000 Veff
error recognition threshold		£ 50 k ohms

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