Sigtronics MRIM-2 Mobile Radio Interface Module

	MRIM-2 — Mobile Radio Interface Module
•	Connects between a single headset, push-to-talk (PTT) switch and your mobile radio or use it to connect a *cellular telephone* to your intercom system.
•	Allows two-way radio communication via the Sigtronics’ emergency headsets.
•	Normal radio operation is possible with the standard hand microphone and speaker.
•	Used in high noise applications where radio communication is required, but vehicle intercom is not.
•	All mounting hardware, jack box, switch box (PTT) and wire are included.
	WARRANTY: Two years parts and labor.

Connects between a single headset, push-to-talk (PTT) switch and your mobile radio or cellular phone. Allows two-way radio communication via the Sigtronics’ emergency headsets. Normal radio operation is possible with the standard hand microphone and speaker. Used in high noise applications where radio communication is required, but vehicle intercom is not.		A typical application is at the pump panel or in the driver’s position, when only one person is on the vehicle. In cases where more than one position is required, additional jacks and PTTs are available. Other uses are in command vans, heavy equipment vehicles, etc. For information on using a Bluetooth cell phone with a Sigtronics intercom system, follow this Link

Interface — Mobile Radio
Model Number	Description
MRIM-2	Mobile Radio Interface Module


Note	Usage
	The above MRIM-2 provides interface between a Mobile Radio and Headset. It does not provide intercom capabilities and is solely for one person. For use at a pump panel or other single position. Some mobile radios may require an adapter to interface with the Mobile Radio Interface Module. See Adapters section 4 — Mobile Radios and Mobile Radio Compatibility List for information details. Order headsets separately to complete the above systems. As the MRIM-2 system includes a PTT switch, any of our standard headsets will work. If a headset mounted switch is preferred, use a headset with a Mic Push-To-Talk Switch (PTT), not a Radio Push-To-Transmit Switch (RPTT). As the MRIM-2 does not have intercom, a PTT headset will transmit over the radio.
Note	Cellular Telephones
	The MRIM-2 is also used for cellular telephone interface. The cellular phone must be hands free capable and have an external speaker / microphone connection. To switch between the MRIM-2 and an intercom system, use toggle switch kit P/N 800185.


Note	PDF Instructions
Installation and Operating Instructions	MRIM-2 Mobile Radio Interface Module Installation and Operating Instructions
Special Installation Instructions	Cellular Interface with MRIM-2 Instructions for using a Sigtronics Intercom System and a Cellular Telephone. Toggle Switch Kit P/N 800185
	Bluetooth Cellular Interface with MRIM-2 Instructions for using a Sigtronics Intercom System and a Bluetooth Cellular Telephone. Toggle Switch Kit P/N 800185
	Cellular Interface with MRIM-2 and RPTT Headset Wiring diagram for using a Sigtronics Intercom System and a Cellular Telephone with a Sigtronics RPTT headset.
	Cellular and Radio Interface with Dual MRIM-2 – Audio Select Wiring diagram for using two Sigtronics MRIM-2 systems with a Cellular Telephone and Radio. Toggle Switch to select audio receive and radio transmit / cellular phone.
	Cellular and Radio Interface with Dual MRIM-2 – Audio Both Wiring diagram for using two Sigtronics MRIM-2 systems with a Cellular Telephone and Radio. Toggle Switch to select radio transmit / cellular phone. Radio and cell phone audio at all times.
	Dual Radios and MRIM-2 Interface – Dual PTT Switch Wiring diagram for using two Sigtronics MRIM-2 systems with dual Radios. Dual PTT switches for radio transmit.
	Dual Radios and MRIM-2 Interface – Toggle Switch Wiring diagram for using two Sigtronics MRIM-2 systems with dual Radios. Toggle switch for radio transmit select.
	Three Radios and MRIM-2 Interface – Rotary Switch Wiring diagram for using three Sigtronics MRIM-2 systems with three Radios. Rotary switch for radio transmit select.
	PA System Interfaced to Sigtronics Intercom Wiring diagram for a PA system interfaced to a Sigtronics intercom through a MRIM-2.

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