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Marine Corps MOS · IT & Cyber

2847 Electro-Mechanical/Information and Communication Technology Maintainer

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

An Electro-Mechanical/Information and Communication Technology Maintainer installs, diagnoses, modifies, and performs field-level repairs on information and communication technology systems and transmission media. The maintainer also diagnoses, modifies, and repairs electro-mechanical devices, submits field service requests, conducts technical research, orders repair parts, and performs quality control inspections of maintenance tasks.

Minimum clearance: Secret

Minimum ASVAB: EL 110

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: navmc-1200-1l-fy26 (source date 2025-03). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Core Skills

  • Robotic motor, servo, and actuator repair
  • Visible and infrared transmission equipment repair
  • Surveillance and reconnaissance processing system maintenance
  • Repair-parts reconciliation (journeyman, minimum three years' experience)

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Telecommunications Equipment Installers and Repairers, Except Line Installers

Military installation and field repair of telephony, optical transmission systems, and wired and wireless network devices transfer directly to communications equipment maintenance.

How to prepare: Complete a practical exercise installing communications equipment, isolating a circuit fault, and documenting post-repair performance against specifications.

What the civilian work involves
  • Test circuits and components of malfunctioning telecommunications equipment to isolate sources of malfunctions, using test meters, circuit diagrams, polarity probes, and other hand tools.
  • Test repaired, newly installed, or updated equipment to ensure that it functions properly and conforms to specifications, using test equipment and observation.
  • Assemble and install communication equipment such as data and telephone communication lines, wiring, switching equipment, wiring frames, power apparatus, computer systems, and networks.
Civilian tools and software (examples)
  • Cisco IOS

Electrical and Electronic Engineering Technologists and Technicians

Military diagnosis, modification, and repair of electronic and electromechanical systems align with maintenance-focused electronics technician work.

How to prepare: Build a bench-test work sample that uses a schematic to diagnose an electronic fault and records measurements before and after repair.

What the civilian work involves
  • Modify, maintain, or repair electronics equipment or systems to ensure proper functioning.
  • Set up and operate specialized or standard test equipment to diagnose, test, or analyze the performance of electronic components, assemblies, or systems.
  • Identify and resolve equipment malfunctions, working with manufacturers or field representatives as necessary to procure replacement parts.

Computer Network Support Specialists

Military diagnosis and repair of wired and wireless network devices provide a foundation for civilian network troubleshooting and support documentation.

How to prepare: Build a small network lab and document how diagnostic software identifies and resolves connectivity faults.

What the civilian work involves
  • Identify the causes of networking problems, using diagnostic testing software and equipment.
  • Document network support activities.
Civilian tools and software (examples)
  • Linux
  • Microsoft Windows

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Getting Started

  • Associate Electronics Technician (CETa)

    Validate foundational electronics theory, circuits, test equipment, and telecommunications knowledge for equipment repair work; ETA designs this credential for technicians with less than two years of electronics experience or training.

    For: Telecommunications Equipment Installers and Repairers, Except Line Installers, Electrical and Electronic Engineering Technologists and Technicians

  • CompTIA Network+ · Funded

    Develop vendor-neutral networking knowledge for the transition from device repair to network support and troubleshooting.

    For: Computer Network Support Specialists

Career Growth

  • Cisco Certified Network Associate (CCNA) · Funded

    Extend network support capability into network access, IP connectivity, IP services, and security fundamentals.

    Eligibility and preparation: Cisco lists no prerequisites for the certification exam.

    For: Computer Network Support Specialists

Notes & Sources

Evidence for this guidance (7 documents)
  1. NAVMC 1200.1L (FY26, in force): MOS 2847

    [1] MOS 2847 section "a. Summary"; cached text line 42325; NAVMC 1200.1L signed 2025-03-07, in force until 2026-10-01

    Supports: Robotic motor, servo, and actuator repair, Visible and infrared transmission equipment repair, Surveillance and reconnaissance processing system maintenance, Repair-parts reconciliation (journeyman, minimum three years' experience), Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00), Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00), Computer Network Support Specialists (O*NET 15-1231.00)

  2. O*NET: Telecommunications Equipment Installers and Repairers, Except Line Installers

    [2] O*NET 30.3 occupational data

    Supports: Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00)

  3. O*NET: Electrical and Electronic Engineering Technologists and Technicians

    [3] O*NET 30.3 occupational data

    Supports: Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00)

  4. O*NET: Computer Network Support Specialists

    [4] O*NET 30.3 occupational data

    Supports: Computer Network Support Specialists (O*NET 15-1231.00)

  5. COOL credential mapping: Associate Electronics Technician (CETa)

    [5] 2847 cached COOL credential feed

    Supports: Associate Electronics Technician (CETa)

    [6]ETA International: Associate Certified Electronics Technician · CETa description and CETa Exam Info; retrieved 2026-09-23

    Supports: Associate Electronics Technician (CETa)

  6. COOL credential mapping: CompTIA Network+

    [7] 2847 cached COOL credential feed

    Supports: CompTIA Network+

    [8]CompTIA: Network+ (Plus) certification exam details · Exam details; retrieved 2026-09-23

    Supports: CompTIA Network+

  7. COOL credential mapping: Cisco Certified Network Associate (CCNA)

    [9] 2847 cached COOL credential feed

    Supports: Cisco Certified Network Associate (CCNA)

    [10]Cisco: CCNA certification · How to earn your CCNA, Core exam 200-301 CCNA; updated 31 August 2026, retrieved 23 September 2026

    Supports: Cisco Certified Network Associate (CCNA)

Defense contractor jobs for 2847

Predecessor codes

Historical codes with documented links to 2847. Each history page explains the change.

2821Technical Controller (PMOS)

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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