CMSC Control Panel AN/ALQ-213
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This panel controls the A-10C’s self-protection and threat-avoidance systems. It manages the aircraft’s Electronic Warfare Suite, including radar warning (RWR), missile warning (MWS), jammer control (JMR), and chaff/flare countermeasure programs. It allows the pilot to monitor, activate, and configure automatic or manual countermeasure modes to defend against radar-guided and infrared threats.
JMR (Jammer) Display and Controls • Function: Controls and displays jammer status (ON/OFF, mode, and fault).
• Controls: – Left arrow button: momentary pushbutton (mode select or toggle).
– Right arrow button: momentary pushbutton (confirmation or submenu select).
– BRT knob: rotary potentiometer for display brightness.
MWS (Missile Warning System) Display and Controls • Function: Monitors infrared/UV missile warning sensors and displays system state.
• Controls: – Left arrow button: momentary pushbutton.
– Right arrow button: momentary pushbutton.
– AUD knob: rotary potentiometer for system audio volume.
RWR (Radar Warning Receiver) Section • Function: Controls radar threat detection display and chaff/flare program selection.
• Controls: – Three rectangular momentary pushbuttons labeled PRI, SEP, and UNK (Primary, Separate, and Unknown signal filter modes).
– Two small status LEDs (above the buttons).
Chaff/Flare Counter Display • Function: Indicates current chaff/flare loadout and dispensing program (e.g., A240/M120).
• Type: Green alphanumeric LED or OLED display (read-only).
Side Selector (E–W) • Function: Electronic Warfare Power switch – toggles ECM master control.
• Type: 3-position fixed toggle (E – center – W).
ML (Mode Lamp) • Function: Status indicator lamp.
• Type: 3 mm green LED (ON when countermeasure program active).
7× momentary pushbuttons (for arrows and RWR modes).
2× rotary potentiometers (10 kΩ linear) for brightness and volume.
1× 3-position toggle switch (ON–OFF–ON type).
3× LED displays or OLED screens for JMR, MWS, and Chaff/Flare indicators.
2× 3 mm LEDs for status indicators.
Backlight color: green (to match A-10C avionics illumination).
Font: Eurostile or Futura-type, all caps, white engraving.
Panel layout: 3 mm top acrylic (engraved, black-painted), 5 mm mid-layer for buttons/LEDs, and 1.5 mm rear spacer for wiring.
Ensure LED diffusion across each display aperture using thin frosted film.