- Annunciator Control Unit comprised of status indicators and switches for use with IFR approved GPS units
- Annunciates NAV or GPS as navigation source, MSG for messages and alerts, PTK for parallel track, OBS/HLD for OBS and flight plan functions, APPR for approach enabled, and ACTV for approach active
- Approved for use with any Apollo/IIMorrow receiver certified for GPS non-precision approach operations
- 14 and 28 volt versions
- Vertical and horizontal configurations
- High-life lamps
- Dual lamps for each annunciator
- Automatic photocell dimming of instrument lamps
- Built-in lamp self-test to check operation of all lamps
- Nitrogen-filled relays with gold-plated contacts
- Internally lighted switches for NAV/GPS and OBS/HOLD
- Front mounting
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