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Navy NEC · IT & Cyber

V21B LHD 1 Class ITAWDS Computer/ Peripheral Subsystem Maintenance 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.

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Overview

An LHD 1 Class ITAWDS computer and peripheral maintenance technician performs organizational level maintenance on Integrated Tactical Amphibious Warfare Data System computer, peripheral, and Data Multiplex System equipment. The technician maintains disk and tape units, teleprinters, switchboards, switching control panels, data terminals, recorder reproducers, and Battle Force Tactical Trainer equipment.

Core Skills

  • Magnetic disk and tape unit maintenance
  • Data multiplex and switching equipment maintenance
  • Battle Force Tactical Trainer 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, Automated Teller, and Office Machine Repairers

Organizational-level maintenance of computer peripherals, disk and tape units, and data terminals transfers directly to the computer-repair portion of this occupation.

How to prepare: Complete a hands-on current computer hardware repair lab covering component replacement, reassembly, and post-repair checks.

What the civilian work involves
  • Reassemble machines after making repairs or replacing parts.
  • Disassemble machines to examine parts, such as wires, gears, or bearings for wear or defects, using hand or power tools and measuring devices.
  • Align, adjust, or calibrate equipment according to specifications.

Telecommunications Equipment Installers and Repairers, Except Line Installers

Maintenance of the Data Multiplex System, switchboard, computer switching control panel, and data terminals provides a foundation for maintaining civilian communications equipment.

How to prepare: Take a practical telecommunications equipment course that includes circuit-diagram troubleshooting and testing repaired switching equipment.

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 (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC V21B

    [1] NEC entry "V21B - LHD 1 Class ITAWDS Computer/ Peripheral Subsystem Maintenance Technician"; cached text line 13485; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Magnetic disk and tape unit maintenance, Data multiplex and switching equipment maintenance, Battle Force Tactical Trainer maintenance, Computer, Automated Teller, and Office Machine Repairers (O*NET 49-2011.00), Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00)

  2. O*NET: Computer, Automated Teller, and Office Machine Repairers

    [2] O*NET 30.3 occupational data

    Supports: Computer, Automated Teller, and Office Machine Repairers (O*NET 49-2011.00)

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

    [3] O*NET 30.3 occupational data

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

Defense contractor jobs for V21B

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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