OXYGEN Panel
Flight Simulation Hardware – Oxygen, Calls, Rain Repellent, and Wipers Control Panel
Overview
This OCRW panel replicates a section of the overhead panel in Airbus aircraft, providing controls for oxygen systems, intercom/call signaling, rain repellent, and windshield wipers.
The hardware is composed of a PCB assembly, laser-etched front panel, and integrated tactile control components including Korry-style pushbutton switches and a rotary selector.
⚠️ Flight Simulation Only – Not for use in real aviation applications.
Panel Layout
The OCRW panel layout is logically split into functional zones:
Top Row – Oxygen Controls
HIGH ALT LANDING
enables High Alitude Landing for air-pressure system
_ / ON Blue
Gated Momentary Korry
MASK MAN ON
The mask doors open automatically, when the cabin altitude exceeds 14 000 ft, or 16 000 ft if the HI ALT LANDING pb-sw is set to ON.
-
Push-to-make button
PASSENGER SYS ON
Lights when pa masks are open
SYS ON White / * * Unlit
Momentary Korry
CREW SUPPLY OFF
toggles crew mask pressure
* * Unlit / OFF White
Momentary Korry
Each control features:
A rectangular Korry-style illuminated switch (with ON/OFF legends).
Vertical "AUTO" label next to "MASK MAN ON".
Grouped under the OXYGEN header with visible dividing line.
Middle Row – Call Buttons
Labeled under CALLS, these are pushbuttons for intercom signaling:
MECH
Rings the Mechanic/Ground crew
-
Push-to-make button
ALL
Calls both Cabin positions
-
Push-to-make button
FWD
Calls Forward Cabin
-
Push-to-make button
AFT
Calls Aft Cabin
-
Push-to-make button
EMER CALL ON
Calls all positions with special emergency settings
CALL Amber / ON White
Momentary Korry
Each position is marked for a circular switch or illuminated pushbutton.
Bottom Row – Rain and Wiper Systems
RAIN RPLNT
Applies Rain Repelant. Not available on the ground with engines stopped.
-
Push-to-make button
WIPER Rotary Switch
changes speed of wipers
OFF/SLOW/FAST
3 position Dial
PCB Details
Design 
Front 
Back 
Connectors & Interfaces
J1 – 40-pin Header (Main Connector)
Located at the lower-right corner of the PCB. Handles all signals including LEDs, buttons, and switches.
Pin Assignments
1
HIGH_ALT_LANDING-TOP_LED
2
HIGH_ALT_LANDING-BOTTOM_LED
3
HIGH_ALT_LANDING-KORRY_SW
4
PASSENGER-TOP_LED
5
PASSENGER-BOTTOM_LED
6
PASSENGER-KORRY_SW
7
CREW_SUPPLY-TOP_LED
8
CREW_SUPPLY-BOTTOM_LED
9
CREW_SUPPLY-KORRY_SW
10
CALL_EMER-TOP_LED
11
CALL_EMER-BOTTOM_LED
12
CALL_EMER-KORRY_SW
13
MASK_MAN_ON_SW
14
CALLS_MECH_SW
15
CALLS_ALL_SW
16
CALLS_FWD_SW
17
CALLS_AFT_SW
18
RAIN_RPLNT_SW
19
WIPER_OFF_SW
20
WIPER_SLOW_SW
21
WIPER_FAST_SW
LEDs and Indicators
Yellow SMD LEDs (D1–D45) for:
Button illumination
Label backlighting (e.g., AUTO, SLOW/FAST arc)
System ON indications
Each LED is paired with a current-limiting resistor (R1–R15)
Mounting and Assembly
4 main mounting holes for panel attachment (corners)
M3 screw spacing compatible with front acrylic panel
Laser alignment holes ensure correct positioning of:
Switches
Rotary encoders
Acrylic overlay
Fabrication and Panel Fit
Acrylic Faceplate
Engraved legends:
All switch labels (e.g., HIGH ALT, MASK MAN ON, CALL ON)
Section titles: OXYGEN, CALLS, WIPER, RAIN RPLNT
Arc markings for the wiper rotary control
Cutouts:
6 rectangular Korry-style switches
6 circular button holes
1 rotary encoder (wiper switch)
Color Code (DXF Format):
Red = Front Cutouts
Blue = Rear Cutouts
Green = Engravings
Orange = Korry Labels (SYS ON, CALL ON, etc.)
PCB Design Reference
The routing view shows:
Red = Top Layer Traces
Blue = Bottom Layer Traces
Yellow = Component boundaries and silkscreen
Mixed use of through-hole and SMD components:
Switch headers
LEDs
Resistors
Rotary encoder
🔗 Attribution
Version: OCRW Panel v1.0
Project: OpenA3XX
License: CC BY-SA 4.0
Note: Design for simulation use only.
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