This manual covers the Narco CP 135/CP 136 Audio Panel, an aircraft audio management system designed for integration with aircraft communication and navigation systems. Engineered for reliability, this device offers advanced audio switching capabilities, allowing for multiple receiver and transmitter selection. It features multiple microphone and speaker inputs, intercom functionality, pilot isolation modes, and provisions for alert tones, all controlled via intuitive rotary knobs and pushbuttons. The system operates on the aircraft's electrical system, supporting both 14 VDC and 28 VDC power sources, ensuring versatile application across various aircraft configurations.

This English-language Installation Manual provides comprehensive guidance for the proper setup and integration of the Narco CP 135/CP 136 Audio Panel. It details essential installation procedures, including reference to wiring diagrams, and outlines necessary testing protocols for functional verification and system integration. The manual is an indispensable resource for technicians and operators, ensuring the audio panel is installed correctly and performs optimally to manage aircraft audio effectively and safely.