Northern Airborne Technology 806 - Manual (Page 8)

806 and 807 Audio Selector Panels
SM806 Installation and Operation Manual
Section 1 Rev: 1.00 Issue 4 Page 1-2
ENG-FORM: 800-0113.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Input Signals (806 and 807)
NAME TYPE LABEL SPECIFICATION
Speaker input Audio SPKR INPUT HI Passive feed through
Normal Microphone Audio NORMAL MIC HI Impedance: 130
Ω -65/+390 Ω
Circuitry: Single ended
Mic bias: 26
±5mA dc
Oxygen Microphone Audio OXY MIC HI Impedance: 130
Ω -65/+390 Ω
Circuitry: Single ended
Mic bias: 26
±5mA dc
Hand Microphone Audio HAND MIC HI Impedance: External
Circuitry: Single ended
Mic bias: External
Aural Warning Bypass Audio AW BYPASS IN 1.5 Vrms when AW BYPASS OUT
terminated into 600
Ω
Oxygen Microphone
Interconnect Control OXY MIC MODE
INTERCONNECT Active Low
10 mA maximum
(Yoke) Push to Talk Key Control PTT KEY SWITCH Active Low
10 mA maximum
Normal / Oxygen
Microphone Key Control NORM/OXY
MIC TIP PTT
Active Low
10 mA maximum
Hand Microphone Key Control HAND MIC PTT Active Low
10 mA maximum
Vox Threshold Control VOX THLD 10 mA maximum
Interphones Listen Control INPH LISTEN Active Low
10 mA maximum
Test Mode Jumper In Control TEST MODE
JUMPER IN 10 mA maximum
Input Signals (807 only)
NAME TYPE LABEL SPECIFICATION
Emergency Switch In Control EMER SWITCH IN 28 Vdc, 100 mA maximum