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4.  TO POWER ON THE 3M™ PELTOR™ 
TACTICAL MODULAR AUDIO SYSTEM
4.1.  OPERATING TEMPERATURE
-20°C/-4°F to 50°C/122°F.
4.2.  START SEQUENCE 
To operate the 3M™ PELTOR™ Tactical Modular Audio 
System,makesuretotandpoweronthesystem
components in the correct sequence. For more detailed 
instructions, refer to the User Instructions for the system 
components. 
1.  TEP-300, refer to “4.5. To power on the TEP-300”.
2.  ComTac™ VII, refer to “4.6. To power on the ComTac™ 
VII”.
3.  SCU-300, refer to “4.7. To power on the SCU-300”.
4.  RCU-300, refer to “4.8. To power on the RCU-300”.
4.3.  TO FIT THE SCU-300
1.  Slide the metal clip onto the rails on the back of the 
SCU-300.
2.  Attach the SCU-300 to your protective vest according to 
the illustration.
IMPORTANT! Make sure that the SCU-300 is placed in 
upright position and as high as possible within the chest area. 
EN