David Clark Multi-Radio Interface Module M-RIM | 41021G-01

Enhance your mobile intercom system with the David Clark M-RIM Module, engineered to connect up to four mobile radios to a single intercom unit with seamless control.

• Interfaces up to four mobile radios with one intercom system
• Individual toggle switches for radio receive audio control
• Rotary selector switch to choose the active transmit radio
• Internal level adjustments for balanced audio across all channels
• Rugged, weather-resistant design for mobile and vehicle use

The David Clark Multi-Radio Interface Module (M-RIM), Part Number 41021G-01, is a vital component for expanding the communication capabilities of Series 3800 or U9922-G38 intercom systems. This interface module allows operators to connect and manage up to four mobile radios simultaneously, with summed receive audio and a selectable transmit path. Designed for durability in mission-critical environments, the M-RIM offers intuitive controls, weather-resistant housing, and wide voltage compatibility. Perfect for emergency response, aviation ground support, and command vehicles requiring advanced communication routing and flexibility.

• Part Number: 41021G-01
• Module Name: M-RIM (Multi-Radio Interface Module)
• Connectivity: Supports up to four mobile radios
• Controls: Rotary transmit selector, toggle RX switches, internal gain controls
• Input Voltage: 11–30 VDC
• Housing: Weather-resistant, durable for vehicle installations
• Compatibility: Series 3800, U9922-G38 intercom systems
• Includes: Interface module only