J301A-001 Audio Controller
Installation and Operating Manual
Rev A
Page 3
1.3.5
Grounds
Name
Qty
Type
CHASSIS GROUND
1
Airframe ground connection
POWER GROUND
1
Power ground
RX COMMON
1
Audio signal ground
1.4
Specifications
1.4.1
Electrical Specifications
Power Input
Primary nominal voltage
28 Vdc
Secondary nominal voltage
14 Vdc
Maximum voltage
32.2 Vdc
Minimum voltage
10.2 Vdc
Emergency voltage
≤
9.0 Vdc
Input current at 28 Vdc
≤
0.7 A
Input current at 14 Vdc
≤
1.4 A
Input current at 9 Vdc
≤
2.4 A
1.4.1.1
Audio Performance
Rated Input Level
Receive audio rated input level
4.5 Vrms
±
10%
Direct audio rated input level
4.5 Vrms
±
10%
Music rated input level
400 mVrms
±
10%
HI level Microphone input level
250 mVrms
±
10%
Dynamic Microphone input level
250 uVrms
±
10%
JAC ICS Tie Line type 1 input level
340 mVrms
±
10%
JAC ICS Tie Line type 2 input level
1.20 Vrms
±
10%
Interphone input level
2.80 Vrms
±
10%
PVT Interphone input level
2.80 Vrms
±
10%
Rated Output Level
600 OHM PHONE rated output
12.3 Vrms
±
10%
8 OHM PHONE rated output
1.42 Vrms
±
10%
600 OHM PHONE rated output,
in emergency mode or with power input
≤
6 Vdc
2.10 Vrms
±
10%
600 OHM PHONE rated output power,
with MUSIC input
6.14 Vrms
±
10%
600 OHM PHONE rated output power, in Emergency mode
or with power input <= power off voltage
3.0 Vrms
±
10%
COM MIC rated output
250 mVrms
±
10%
CVR rated output
500 mVrms
±
10%
CVR rated output with input as MUSIC
250 mVrms
±
10%
CVR rated output with input as HI LEVEL MIC
1.00 Vrms
±
10%
CVR rated output, in emergency mode,
500 mVrms
±
10%
RX Composite rated output
2.50 Vrms
±
10%
JAC ICS Tie type 1 rated output
340 mVrms
±
10%
JAC ICS Tie type 2 rated output
1.20 Vrms
±
10%
INTERPHONE rated output
2.80 Vrms
±
10%
PVT INTERPHONE rated output
2.80 mVrms
±
10%
Audio Frequency Response
Audio output audio frequency response
≤
3dB from 300 to 6000 Hz
