Motorola PROIS Portable Radio Option Board

Find out more about PROIS
The Professional Portable Radio Interface Option Board is a Rotronix Ltd proprietary Printed Circuit Board (PCB) with embedded in the memory of the microprocessor the proprietary software needed to utilize the Motorolaâ„¢ Professional Radio Option Interface (PROIS) software. The option board has a 9-pin D-shell connector to control the radio, e.g. transmit/receive, channel-change and feedback about channel status e.g. the radio is receiving a valid signal. The option board is connected to the radio via the 40-pin ZIF connector in the radio.

Example of Motorola Portable Radio with PROIS Option-board and power-supply mounted in a die-cast housing.

Link to Ruggedized Portable Radio page

More detailed information:

Prois interface Board
Information about PROIS can be found here.
Repeater interface module
How to convert a Portable radio into a LC828.

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