4.5.8Tel Audio I/O

Pin

Connector

Pin Name

Description

I/O

3

P2401

TEL AUDIO IN HI

Telephone Audio Input

IN

4

P2401

TEL AUDIO LO

Ground Reference for Telephone

--

5

P2401

TEL MIC AUDIO OUT HI

TEL MIC Audio Output

OUT

4.5.9Headset Outputs

Pin

Connector

Pin Name

Description

I/O

16

P2402

PILOT HEADSET AUDIO OUT LEFT

Pilot Headset Audio

OUT

31

P2402

PILOT HEADSET AUDIO OUT RIGHT

OUT

Output

1

P2402

PILOT HEADSET AUDIO OUT LO

--

 

3

P2402

COPILOT HEADSET AUDIO OUT LEFT

Copilot Headset Audio

OUT

4

P2402

COPILOT HEADSET AUDIO OUT RIGHT

OUT

Output

2

P2402

COPILOT HEADSET AUDIO OUT LO

--

 

40

P2401

PASS HEADSET AUDIO OUT LEFT

Passenger Headset

OUT

41

P2401

PASS HEADSET AUDIO OUT RIGHT

OUT

Audio Output

42

P2401

PASS HEADSET AUDIO OUT LO

--

 

NOTE

Copilot and Passenger headset outputs are internally the same connection. Separate Passenger headset output pins are provided for wiring convenience and GMA 340 pin compatibility.

NOTE

For CREW ISO configuration, the copilot’s headphone jack should be wired in parallel with the pilot jack to the Pilot headset output pins. Passengers may be connected to either the copilot or passenger pins.

4.5.10COM Swap

Pin

Connector

Pin Name

Description

I/O

20

P2402

COM SWAP* IN

Ground Through a Momentary PB

IN

 

 

 

Switch to Swap Active COM (COM 1

 

 

 

 

or COM 2)

 

21

P2402

COM SWAP RETURN

Return Path for PB Switch

--

Page 4-8

GMA 240 Installation Manual

Rev. A

190-00917-01

Page 32
Image 32
Garmin GMA 240 Tel Audio I/O Pin Connector Pin Name Description, Headset Outputs Pin Connector Pin Name Description

GMA 240 specifications

The Garmin GMA 240 is a state-of-the-art audio panel designed specifically for aviation applications. This device is known for its advanced features, user-friendly interface, and superior sound quality, making it a popular choice among pilots and aircraft owners. One of the standout characteristics of the GMA 240 is its ability to integrate seamlessly with a variety of communication and navigation systems, enhancing situational awareness and streamlining cockpit operations.

One of the main features of the GMA 240 is its capability to manage multiple audio inputs. The panel provides independent volume controls for the pilot and co-pilot, allowing each to adjust their audio levels according to their preferences. Additionally, the GMA 240 offers a dedicated input for auxiliary devices, such as smartphones or tablet computers, facilitating music playback or calls during flight.

The GMA 240 also incorporates advanced noise reduction technology. This feature minimizes ambient noise interference, ensuring that communication between the crew and air traffic control is crystal clear. The panel is equipped with a digital processing function that enhances audio clarity and reduces background noise, a critical asset in the typically noisy environment of an aircraft cockpit.

Another noteworthy characteristic of the GMA 240 is its intuitive operation. The layout of the controls is logical and straightforward, allowing pilots to adjust settings quickly and efficiently without distraction. This ease of use is crucial, especially during high-pressure situations when pilots need to maintain focus on flying while managing audio communications.

The GMA 240 supports a wide range of aircraft configurations, making it a versatile choice for various aviation needs. It is designed to be compatible with both general aviation and commercial aircraft, further extending its usability in different environments. The panel meets rigorous safety standards, ensuring it can withstand the demands of aviation use.

In terms of installation, the GMA 240 is engineered for easy integration into existing cockpits, requiring minimal modifications. Its compact design and robust build quality ensure durability even in challenging flight conditions.

In summary, the Garmin GMA 240 audio panel stands out for its combination of advanced features, user-friendly design, and high-quality performance. With its excellent noise reduction capabilities, independent audio controls for each crew member, and broad compatibility, it is an essential tool for enhancing communication and safety in the cockpit. This audio panel continues to be a preferred choice for aviation professionals seeking reliability and efficiency.