Jupiter Avionics JA37-300, Installation And Operating Manual

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JA37-300 Aural Message Generator - 3 Channel - Analog Inputs
Installation and Operating Manual
Rev B Page 3
Output Impedance
Phones output Impedance 300 Ω ± 20 %
Phones low isolation output Impedance 1.2 k Ω ± 20 %
Phones high isolation output Impedance 3.0 k Ω ± 20 %
Output Load
Phones load 600 Ω ± 10 %
Input to Input Crosstalk Level
Input to Input crosstalk ≤ 60 dB
Audio Noise Level without Signal
Noise level below the rated output ≥ 60 dB
1.4.1.2 Audio Performance, Other
RX input circuitry type Transformer coupled
Phones output circuitry type Transformer coupled
Message playback frequency error ±2 % max
1.4.1.3 Discrete Signals
Message Trigger (active low) signal level active
≤
+3 Vdc
Message Trigger (active low) signal level inactive ≥ +6 Vdc
Message Trigger (active high) signal level active ≥ +8 Vdc
Message Trigger (active high) signal level inactive ≤ +6 Vdc
Message Mute active low signal ≤ +3 Vdc
Active low control output, active output ≤ +2 Vdc
Active low control output, active, current ≤ +1 Adc
1.4.2 Mechanical Specifications
Height 1.27 in [32.3 mm] max
Depth 5.02 in [127.5 mm] max
Width 4.52 in [114.8 mm] max
Weight 0.76 lbs. [0.35 kg] max
Material brushed aluminum with conversion
coating
Connectors (2): J1 One 25-pin D-Sub male, V5 locking
J2 One 4 pole 3.5mm stereo jack
Mounting 4 x 10-32 fasteners
Bonding ≤ 2.5 m Ω
Installation kit part number INST-JA37
1.4.3 Flammability of Materials
The JA37-300 complies with the requirements of RTCA/DO-160G Sec 26.3.3 "Flammability", through equivalent
flammability testing of materials and the Small Parts Exemption.
1.4.4 Product Configuration Software Version
Configuration of the JA37-300 requires the Product Configuration Software (ProCS) version 0.68.2 or later. Refer to
the release notes from https://www.jupiteravionics.com/productsoftware.php or contact Jupiter Avionics to ensure the
correct version is used.