David Clark Radio Interface Module U3815A | Part 40136G-02

Integrate reliable radio communication into your mobile system with the David Clark U3815A Module, engineered for headset-to-radio connectivity in rugged environments.

• Provides transmit capability for one user and receive for all intercom users
• Includes headset jack, volume control, and integrated PTT switch
• Supports system expansion with dual intercom I/O connectors
• Weather-resistant, heavy-duty polycarbonate enclosure
• Designed for fire, rescue, and command vehicle installations

The David Clark U3815A Radio Interface Module (Part Number 40136G-02) connects a mobile radio to the Series 3800 intercom system, allowing one headset-equipped user to transmit while all system users can monitor the same radio channel. Designed for mobile environments such as emergency response vehicles, the U3815A includes a headset jack with listen-level control, a built-in push-to-talk switch, and multiple intercom and radio interface ports. Its durable polycarbonate housing withstands harsh temperature ranges and tough conditions, making it ideal for mission-critical applications. The module also supports further system expansion through dual intercom connectors.

• Model: U3815A
• Part Number: 40136G-02
• User Capacity: One headset with transmit; system-wide radio receive
• Controls: Volume knob and integrated PTT switch
• Connectors: Radio input, two system I/O, optional remote PTT
• Enclosure: Weather-resistant polycarbonate, rated -80°F to +212°F
• Power Input: 12V or 24V DC via Series 3800 system
• Mounting: Surface mount
• Application: Mobile command, fire/rescue vehicles, public safety fleets