JA94-N01A Dual Audio Controller - NVG
Installation and Operating Manual
Rev A Page 3
1.4.1.1 Audio Performance
Rated Input Level
Receive audio rated input level 7.75 Vrms ± 10%
Direct audio rated input level 7.75 Vrms ± 10%
Music rated input level 400 mVrms ± 10%
Microphone input level 250 mVrms ± 10%
Intercom Tie Line type 1 input level 340 mVrms ± 10%
Intercom Tie Line type 2 input level 1.20 Vrms ± 10%
Rated Output Level
PHN rated output 8.7 Vrms ± 10%
LEFT or RIGHT USER PHN rated output in emergency mode 3.00 Vrms ± 20%
Phone rated output level, with MUSIC input 4.35 Vrms ± 10%
COM MIC rated output 0.250 Vrms ± 10%
CVR rated output 0.500 Vrms ± 10%
CVR rated output with MUSIC INPUT 0.250 Vrms ± 10%
CVR rated output with MIC INPUT 1.00 Vrms ± 10%
CVR rated output, in emergency mode, 0.500 Vrms ± 10%
RX COMP rated output 2.50 Vrms ± 10%
Intercom Tie Line type 1 rated output 340 mVrms ± 10%
Intercom Tie Line type 2 rated output 1.20 Vrms ± 10%
Audio Frequency Response
Audio output audio frequency response ≤ 3 dB from 300 to 6000 Hz
Distortion Characteristics
Audio output distortion at rated power ≤ 10%
Input Impedance
Microphone input Impedance 150 Ω ± 10%
Direct Audio input Impedance 1000 Ω ± 10%
Receive Audio input Impedance 1000 Ω ± 10%
Music Audio input Impedance 1000 Ω ± 10%
Intercom Tie Line Audio input Impedance 2000 Ω ± 10%
Output Load
Phone load 600 Ω ± 10%
Transceiver Microphone load 150 Ω ± 10%
CVR load 5000 Ω ± 10%
Receive Composite Audio load 600 Ω ± 10%
Intercom Tie Line type 1 rated load 2000 Ω ± 10%
Intercom Tie Line type 2 rated load 2000 Ω ± 10%
Intercom Tie Line type 1 maximum load 666 Ω max (3 loads)
Intercom Tie Line type 2 maximum load 285 Ω max (7 loads)
Volume Controls
Receive Audio control variation 32 ± 3 dB min
ICS Audio control variation 42 ± 3 dB min
Crosstalk Level
Input to Output crosstalk ≤ 55 dB
Input to Input crosstalk ≤ 60 dB
Station to Station crosstalk ≤ 65 dB
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