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3M™ PELTOR™ Tactical Modular Audio System
1.  INTRODUCTION
Congratulations and thank you for choosing 3M™ PELTOR™ protective communication solutions! Welcome to the next 
generation of protective communication.
1.1.  INTENDED USE
The 3M™ PELTOR™ Tactical Modular Audio System (TMAS) is comprised of the System Control Unit (SCU-300), the Remote 
Control Unit (RCU-300), the ComTac™ VII headset and/or the Tactical Earplug (TEP-300). The SCU-300 connects all products 
in the system and controls various functions of the products. The SCU-300 can also be connected to external communication 
devices such as radios and intercom systems. Both the ComTac™ VII and the TEP-300 can be used separately or together as 
part of the Tactical Modular Audio System and both offer two-way communication capabilities. The ComTac™ VII headset also 
offers Natural Interaction Behavior (NIB) functionality, allowing headset-to-headset, near proximity communications in high noise 
without the use of an external communications device.
It is expected that all users read and understand the provided User Instructions as well as be familiar with the use of the relevant 
TMAS components: SCU-300, RCU-300, ComTac™ VII, and/or TEP-300.
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