Installation Manual for Garmin GTR 200/200B COM Transceiver

Quick guide from the manual

This manual provides the necessary mechanical and electrical information for planning and installing the Garmin GTR 200/200B COM Transceiver into an aircraft. It is intended for professional installers and includes detailed wiring, mounting, and configuration procedures.

Equipment Description

The GTR 200/200B is a COM transceiver designed for aircraft installation. The GTR 200B model includes Bluetooth connectivity for music and phone calls. The unit features a sunlight-readable LCD display and requires a 50-ohm vertically polarized antenna.

Installation Overview

• Antenna: Must be mounted on a metal surface or ground plane (min 18x18 inches), at least 6 feet from other COM/DME antennas.
• Mounting: Designed for avionics stack mounting. Ensure the rack is flush with the panel and not obstructed.
• Cabling: Use shielded wire (MIL-C-27500 or equivalent) and keep runs as short and direct as possible. Avoid routing near high-voltage sources or power lines.

Installation Procedures

1. Unpacking: Inspect for shipping damage.
2. Wiring Harness: Fabricate cables using the 37-pin D-sub connector (P2001) and BNC antenna connector (P2002).
3. Backshell Assembly: Follow Appendix A for shield block and ground assembly instructions.
4. Mounting: Install the rack in the instrument panel using #6-32 flat head screws.
5. Configuration: Access Configuration Mode by holding the SMALL knob while powering on the unit.

Configuration Mode

Configuration mode allows for setting up specific installation parameters:

• COM Setup: Adjust sidetone, mic gain, and RF squelch.
• Audio Setup: Configure intercom, auxiliary inputs, and receiver output gain.
• Softkey Setup: Customize softkey functions.
• Discrete Setup: Configure discrete inputs (e.g., PTT, frequency swap).
• Lighting Setup: Configure bezel and display lighting source (sensor or bus voltage).

Connector Pinout Information

The J2001 connector provides all electrical interfaces, including:

• Power: Pins 1 (Power) and 20 (Ground).
• Audio: Pilot/Copilot headset and mic inputs, music inputs, and receiver audio output.
• Data: CAN bus (Pins 6, 7) and RS-232 (Pins 23, 24).
• Discrete: PTT inputs, TX Interlock, and configurable discrete inputs.

Software Updates

Software can be updated using a 4GB micro SD card. Insert the card into the unit face, power on, and follow the on-screen prompts to scan and update the system software.

Safety and Regulatory

The unit contains chemicals known to cause cancer/reproductive harm (California Prop 65). Clean the display only with a microfiber cloth and approved eyeglass lens cleaner; do not use ammonia-based cleaners.