SL15 Product Overview

The new Audio Selector Panels are loaded with features and functionality for the pilot, crew, and passengers. Each SL15 can be connected to as many as 4 transceivers and 5 receivers. It includes a six place voice activated intercom with digital signal processors that manage voice activation for each station, keeping unwanted background noise out without clipping speech. The SL15 can be interfaced with approved aviation cellular telephones to bring telephone access to each intercom position. An optional Digital Audio System allows you to record up to one minute of radio reception. With a single push of a button you can replay the last incoming transmission and up to 16 messages can be stored. Up to six inputs from engine gauges can be monitored, and an audible warning can be heard when a parameter has been exceeded. Dual entertainment inputs allow both crew and passengers to listen to different music simultaneously. Split mode communications allows crew members to use two radios at the same time, and a fail safe feature automatically connects the pilot to com1 if the unit or power fails.

Features

• State of the art integration of audio control and communications
• Six place stereo intercom with IntelliVox™ automatically adjusts VOX squelch level - no manual adjustment needed
• Split mode allows independent use of both radios by pilot and co-pilot
• Cellular telephone interface
• Dual stereo music input
• Optional DRAWS: Digital Recorder and Audio Warning System
  • 60 second recorder stores last ATC communications
  • 6 audible engine warning messages
• Retrofits to SL10 installations, as well as KMA-24
• Optional marker beacon receiver
• Standard 1.3" x 6.25" configuration
• Fully TSO approved
• Accepts 11 to 33 VDC input
• Suggested retail price: $1795 (with marker beacon $1995)
• The SL15 provides all of the features pilots demand in an audio panel and advances the state of the art with features like IntelliVox™, DRAWS, and cellular telephone interface.

Technical Specifications

• TSO compliance: SL15 Audio Selector Panels are
• FAA approved under TSO- C50c, TSO-35d using
• DO-160b, DO-170 and DO-143.
• Environmental Categories: A1D1/CA(MN)XXXXXXBBBBTBKXX
• 1.3"(H) X 6.25"(W) X 6.8"(D) (Depth is specified as behind panel depth)
• Weight: 1.1 lbs (.50kg)

Performance Specifications

• Voltage Input: 11-33VDC, 1.5A
• Speaker Off current 350mA (typical)
• Speaker On current 1.5A at 28VDC (typical)
• Operating Temperature Range: -20C to +55C
• Operational Altitude: 50,000 feet unpressurized

Audio Performance Specifications

• Input Impedance: 510 ohms for all audio inputs
• Input Isolation: - 60db min
• Headphone Output: 38mW into 150 ohm with no clipping
• Headphone Output: 70mW into 150 ohm with less than 10% distortion
• Speaker Output: 3 Watts with no clipping
• Communications Frequency Response:3db, 300- 6,000 Hertz
• Entertainment Frequency Response:3db,100-18,000 Hertz

Marker Beacon Receiver Specifications

• Frequency: 75Mhz
• Sensitivity:
  • Low 1,000 uV Hard (Adjustable)
  • High 200 uV hard (Adjustable)
• Selectivity:
  • - 6db at +/- 110 Khz
  • - 40db at +/- 220 Khz
• Input Impedance: 50 ohms
• Middle Marker Sense: 4.75 VDC +/- 0.5 VDC
• External marker lights output: 9.0 +/- 2.5 VDC at 125mA