Tactical Switching Operator

Sgt to Pvt - PMOS


Tactical Switching Operators are the foundation of cabled communications in the Marine Corps. The primary function of personnel holding this designation is to install, operate, and maintain analog, TDM, and internet protocol telecommunications systems that interconnect key locations with reliable paths for the transmission of classified and unclassified voice, video, and data services. Typical duties of this MOS include installing, maintaining, and recovering cable distribution infrastructure, telephones, local session controllers, media gateways, and media converters. Skill progression training for Sergeant and Corporal is the Telecommunications Supervisor's Course.


  • Must be a U.S. Citizen.
  • Must possess an EL score of 105 or higher.
  • Must have normal color vision.
  • Sercurity requirement: Secret security clearance eligiblibity.


  • Complete the Telephone Systems Installer Maintainer (TSIMC) Course (M09DPV1), MCCES 29 Palms, CA.


  • For a complete listing of duties and tasks, refer to NAVMC 3500.56A, Communications Training and Readiness Manual..

Related SOC Classification/SOC Code:

  • Line Installers and Repairers/Telephone Line 49-9052.
  • Telecommunications Equipment Installers and Repairers, Except Line Installers 49-2022.

Related Military Skill:

  • None