Northern Airborne Technology 3110 - Manual (Page 16)

3110-100 Audio Control Panel Manual SM3110 Rev. 4.00
1.4.1.3
Output Signals
Headphone: (PLT HDPH, SVC HDPH)
Headphone Type Single ended, AC coupled, transformerless,
short circuit protected
Impedance: ≤20 Ω
Output load: 150 Ω Minimum, 1 µF Maximum
Volume range: 39 ±5 dB (PLT HDPH only)
Rated power:
PLT HDPH: 240 mW into 150 Ω (6.0 ±1.0 Vrms)
SVC HDPH: 6.6 mW into 150 Ω (1.0 ±0.1 Vrms)
Distortion: <2% nominal
Cabin Call Tone Level: 2.5 ±1.0 Vpp
EMER Mode: -20 ±3 dB relative to input
Microphone: (COM MIC)
Microphone Type: Differential, AC coupled, transformerless, short
circuit protected
Impedance: 100 Ω ±20% (when keyed)
Output Load: 150 Ω ±20%
Dynamic Range: 20 mVrms to 1.5 Vrms, (2.12 V peak)
Nominal: 350 ±50 mVrms
Rated Power: 15 mW into 150 Ω (1.5 ±0.05 Vrms)
Distortion: <2% nominal
Passenger Address: (PA MIC)
Type: Differential, AC coupled, transformerless, short
circuit protected
Impedance: 100 Ω ±20% (when keyed)
Output load: 150 Ω ±20%
Dynamic Range: 10 to 750 mVrms
Nominal: 175 ±25 mVrms
Rated power: 3.8 mW into 150 Ω (750 ±25 mVrms)
Distortion: <2% nominal
Speaker: (CKPT SPKR)
Type: AC coupled, bridge output, short circuit
protected
Page 1-4 Aug 25, 2005
ENG-FORM: 800-0108.DOT
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