Cable of duty:An Ethernet connection for tactical kits.
Built for rugged conditions
Results that make a difference
Soldiers often carry Ethernet cables in their kits to support critical communication equipment. These cables are frequently off-the-shelf consumer products, retrofitted in the field to survive deployment.
Most are fragile, bulky, and unshielded, making them unsuited for defense-grade use. So we made one with purpose to demonstrate the kind of product prototyping, design for manufacturing, and low volume manufacturing work that sets 29Tech apart.
Designed entirely in-house, this short Ethernet adapter cable became a testbed for everything we believe makes a military-ready product: secure signal integrity, compact form, sealed housing, and silent operation under electronic scrutiny.
Operations stall when adapters fail
In the military, there’s a saying: two is one, and one is none. A single weak connection can put everything downstream at risk, so missions have to plan for failures.
Off-the-shelf Ethernet cables were susceptible to failures during deployments. They were designed for controlled environments like offices and data centers, not on-the-go operations where they’re exposed to constant movement, vibration, moisture, dust and electronic noise. Attempts to retrofit them introduced gaps in sealing and grounding that lead to failures, signal noise or intermittent connections.
The challenge was to manufacture a cable that could withstand physical handling and electronic scrutiny. A cable that real soldiers could rely on in the call of duty.
Build reliability into the process
We treated the adapter as more than a cable. It was a platform to prove what tight design and smart manufacturing can deliver.
Rather than adapting a consumer product, we focused on how the cable would be assembled, sealed, shielded and inspected so reliability was built in, not added later.
We started with premium components that met strict military requirements for noise suppression, water resistance and harsh requirements, and we handled every step in-house.
We built and tested the prototype, refined shielding and connector design through design for manufacturing reviews, and moved into small batch pilot production. Compliance testing and quality checks were built into the process so every unit met our high standards.
The result is a cable designed and tested to meet the same expectations we apply to all our clients. It's now fielded with PRC-series manpacks, L3 Harris radios and tactical hubs across the defense industry.
And naturally, we use it ourselves.
Up close with
Adapter
Skills & equipment used
- Built short-run prototypes in-house to validate sealing, shielding, and form factor before production
- Ran early EMI pre-screening to identify and address noise issues prior to scaling
- Refined shielding and connector layout to support consistent, repeatable assembly
- Selected materials and components that support noise suppression, sealing, and durability in production
- Produced controlled small-batch runs for internal use and SupplyNet deployment
- Maintained full control of build quality through in-house assembly and verification steps
- Conducted electrical and performance testing on every unit
- Verified performance under moisture exposure, vibration, and handling to reduce field failure risk
- Coordinated delivery directly with their warehouse team
- Managed consigned parts as part of the production flow
- Delivered on an as-needed basis
- Packaged components in protective polybags with protected ends
- Designed special protective packaging for safe transit
Need to fill the gaps off-the-shelf leaves behind?
