mos.directory

Navy NEC · IT & Cyber

745A Information Systems Technician

Current service use not established

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

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating. Part of the Information Systems Technician rating

Browse Navy

Overview

An Information Systems Technician operates, secures, and maintains information systems, telecommunications equipment, peripheral equipment, and related services. This technician supports network users, restores systems and communication circuits, monitors communication suites, troubleshoots outages, documents support actions, maintains media libraries, and performs preventive and corrective maintenance.

Core Skills

  • Critical voice and data circuit restoration
  • Network and communications outage troubleshooting
  • System restoration and preventive maintenance

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.

Computer Network Support Specialists

Troubleshooting network outages, monitoring communications systems, and documenting support actions transfer directly to network support work.

How to prepare: Build a practice network, introduce connectivity faults, and document the diagnostic steps and successful repairs in a troubleshooting portfolio.

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 Server

Computer User Support Specialists

Providing desktop support to network users and maintaining information systems and peripherals directly supports civilian end-user troubleshooting.

How to prepare: Create a small portfolio of resolved desktop and peripheral problems, recording user symptoms, diagnostic steps, repairs, and verification.

What the civilian work involves
  • Read technical manuals, confer with users, or conduct computer diagnostics to investigate and resolve problems or to provide technical assistance and support.
  • Answer user inquiries regarding computer software or hardware operation to resolve problems.
  • Install and perform minor repairs to hardware, software, or peripheral equipment, following design or installation specifications.
Civilian tools and software (examples)
  • Apple macOS
  • Linux

Telecommunications Equipment Installers and Repairers, Except Line Installers

Maintaining telecommunications equipment and restoring voice and data circuits provides a foundation for civilian communications equipment repair.

How to prepare: Complete hands-on practice in telecommunications circuit testing and equipment installation, including fault isolation with test meters and circuit diagrams.

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

Notes & Sources

Evidence for this guidance (4 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC 745A

    [1] NEC entry "745A - Information Systems Technician"; cached text line 17730; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Critical voice and data circuit restoration, Network and communications outage troubleshooting, System restoration and preventive maintenance, Computer Network Support Specialists (O*NET 15-1231.00), Computer User Support Specialists (O*NET 15-1232.00), Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00)

  2. O*NET: Computer Network Support Specialists

    [2] O*NET 30.3 occupational data

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

  3. O*NET: Computer User Support Specialists

    [3] O*NET 30.3 occupational data

    Supports: Computer User Support Specialists (O*NET 15-1232.00)

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

    [4] O*NET 30.3 occupational data

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

Defense contractor jobs for 745A

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

Report an error on this page