This manual introduces the installation instructions of Apollo SL15 audio selector panel
This manual provides detailed installation and operation instructions for the Apollo SL15 series audio selector panel and intercom system. It includes general information, equipment description, wiring diagrams, mounting requirements, and post‑installation checkout procedures.
The document also lists the supplied equipment, required accessories, FAA approval basis, and technical specifications such as temperature limits, dimensions, power requirements, and audio performance characteristics.
| Operating Temperature Range | -15 °C to 55 °C |
|---|---|
| Storage Temperature Range | -40 °C to 85 °C |
| Maximum Altitude | Up to 50,000 ft (unpressurized cockpit) |
| Dimensions (H × W × D) | 1.3 in × 6.25 in × 6.8 in |
| Power Supply Voltage | 11 VDC to 33 VDC |
| Maximum Current | 1.5 A (externally protected by 3 A breaker) |
| Receiver Inputs | 9 (Com 1, Com 2, Com 3, Nav 1, Nav 2, ADF, DME, MKR, AUX) |
| Speaker Output (into 4 Ω) | ≥ 3 W (no clipping) |
| Headphone Output | 38 mW per headset, <1 % THD |
The panel operates from a voltage range of 11 VDC to 33 VDC.
The SL15 provides nine receiver inputs: Com 1, Com 2, Com 3, Nav 1, Nav 2, ADF, DME, MKR, and AUX.
If power is removed or the power switch is turned off, the fail‑safe mode connects the pilot headphone and microphone to COM 1.