Ethernet Bulkhead Connectors
Ethernet Bulkhead Connectors - browse Dive And See products and choose the right underwater system, cable, connector, or accessory for your application.
Dive And See underwater Ethernet bulkhead connectors provide waterproof Cat6 network connections through underwater housings, pressure enclosures, cameras, sensors, and marine equipment. Available with multiple mounting threads, body styles, and custom internal pigtail configurations for applications up to 100 m / 328 ft.
Underwater Ethernet Bulkhead Connectors
Dive And See manufactures professional underwater Ethernet connectors for integrating Ethernet communication through underwater housings and pressure enclosures. Standard and custom configurations are available for cameras, sensors, monitoring equipment, marine electronics, research instruments, and OEM underwater systems.
Choose the mounting thread and connector geometry that best matches your housing design. Custom internal pigtail lengths and terminations are available for prototype and production applications.
Choose the Right Ethernet Bulkhead Connector
| M16 Short Thread | DNC-2071 — compact straight Ethernet bulkhead connector for thinner housing walls and space-limited installations. |
| M16 Extended Thread | DNC-2025 — straight Ethernet bulkhead connector with additional thread length for thicker enclosure walls or applications requiring greater thread engagement. |
| M16 90° / Swivel | DNC-2084 — low-profile side-exit Ethernet configuration for installations where external clearance is limited. |
| M16 Long 90° / Swivel | DNC-2084-L — extended-thread version for thicker housing walls while maintaining a side-exit cable orientation. |
| 7/16-20 | DNC-2082 — compact Ethernet bulkhead configuration for housings and enclosures using a 7/16-20 mounting port. |
| M24 & Custom | DNC-2132 and custom configurations are available for equipment requiring larger mounting ports or specialized installation geometry. |
How an Underwater Ethernet Bulkhead Connection Works
A waterproof Ethernet bulkhead connector creates a sealed network connection through the wall of an underwater enclosure.
Inside the housing: an Ethernet pigtail connects the bulkhead to the camera, sensor, computer, controller, switch, or other network device.
Outside the housing: a waterproof mating connector attaches to the underwater Ethernet cable.
The external cable can then connect the underwater equipment directly to a surface network or to another submerged device.
Ethernet Bulkhead Connector or Ethernet Penetrator?
An underwater Ethernet bulkhead connector provides a detachable waterproof connection. The external underwater cable can be disconnected from the housing when required.
An underwater Ethernet penetrator uses a cable that passes through the housing entry point rather than a detachable external mating connection.
Both approaches can be useful depending on the application. A detachable bulkhead system provides greater flexibility for transportation, cable replacement, alternate cable lengths, and field service. A penetrator configuration can be appropriate where a permanently attached cable is preferred.
Contact Dive And See if you are unsure which configuration is better for your enclosure.
Multiple Bulkhead Threads and Installation Styles
Underwater equipment does not use one universal bulkhead mounting standard. Dive And See offers multiple mounting configurations so the Ethernet connection can be integrated into different housings and pressure enclosures.
- M16 × 1 short-thread configurations
- M16 × 1 extended-thread configurations
- 7/16-20 mounting configurations
- M24 configurations
- Straight cable exit
- 90-degree / side-exit configurations
- Swivel configurations on selected models
- Custom mounting and integration options
Always verify the housing port thread, available wall thickness, internal clearance, and external connector clearance before selecting a bulkhead connector.
Custom Internal Ethernet Pigtails
Internal cable length can be an important part of underwater equipment integration. Dive And See can provide custom internal Ethernet pigtail lengths for many bulkhead connector configurations.
This allows the bulkhead connector to be positioned correctly on the enclosure while reaching the internal network device without unnecessary cable length or additional adapters.
When requesting a custom configuration, specify the required internal cable length and termination.
Designed for Engineering & OEM Integration
Dive And See Ethernet bulkhead connectors are used in prototype and production underwater equipment where engineers need to integrate network communication through a pressure housing.
Common design considerations include:
- Housing wall thickness
- Bulkhead mounting thread
- Available internal clearance
- External connector clearance
- Internal pigtail length
- Internal termination
- External cable length
- Straight or 90-degree cable exit
- Ethernet and PoE requirements
Prototype quantities are welcome. The same connector configuration can later be reproduced for additional units or modified as the equipment design evolves.
Outline Drawings & 3D Integration Support
Dimensional outline drawings are available on selected Dive And See Ethernet bulkhead connector product pages to help engineers verify mounting dimensions, thread requirements, and installation clearance.
For selected products, simplified 3D integration models may also be available for enclosure layout and clearance verification. Integration models contain the external geometry required for system design while proprietary internal construction and manufacturing details are intentionally omitted.
Underwater Applications up to 100 m / 328 ft
Dive And See standardizes this underwater Ethernet product family around applications up to 100 m / 328 ft. This provides a practical operating range for professional underwater cameras, sensors, research equipment, monitoring systems, pressure enclosures, and OEM marine electronics.
The complete underwater system is only as strong as its individual components. Always verify the specifications of the housing, cable, mating connector, and connected equipment for the intended operating depth.
Production Lead Time
Standard Assembly: Typically 6–8 business days.
Expedited 3-Day Assembly: Available for many Ethernet bulkhead connector configurations for an additional 15% expedited assembly fee.
Please contact Dive And See before ordering to confirm expedited production availability.
Applications
- Underwater IP camera housings
- Marine monitoring systems
- Underwater sensors and instruments
- Pressure vessels and subsea enclosures
- Aquarium monitoring equipment
- Underwater inspection systems
- Research instrumentation
- OEM marine electronics
- Prototype underwater equipment
- Remote monitoring systems
- ROV and marine robotic systems
Complete Underwater Ethernet Connectivity
A bulkhead connector is only one part of the underwater network connection. Dive And See also provides mating underwater Ethernet cables for direct underwater-to-surface and underwater-to-underwater communication.
Typical system:
Surface network equipment → underwater Ethernet cable → waterproof mating connector → Ethernet bulkhead connector → internal Ethernet pigtail → underwater device.
Frequently Asked Questions
What is an underwater Ethernet bulkhead connector?
An underwater Ethernet bulkhead connector creates a sealed network connection through the wall of an underwater housing or pressure enclosure while allowing an external waterproof Ethernet cable to be connected and disconnected.
What bulkhead thread do I need?
The correct thread depends on the housing. Common Dive And See configurations include M16 × 1, 7/16-20, and M24. Verify the housing thread and wall thickness before ordering.
What is the difference between short-thread and long-thread M16 connectors?
Short-thread versions are generally suited to thinner housing walls, while extended-thread versions provide additional thread engagement for thicker enclosure walls or specialized mounting arrangements.
Can I order a custom internal pigtail length?
Yes. Custom internal Ethernet pigtail lengths and terminations are available for many connector configurations.
Do the connectors support PoE?
Selected Ethernet connector and cable configurations can be used in compatible PoE systems. Actual performance depends on the complete cable assembly, cable length, network equipment, connected device, and power requirements.
Can you provide a connector for a prototype?
Yes. Prototype and small-quantity orders are welcome. Additional connectors and matching cables can later be produced in the same configuration or modified as your design changes.
What is the maximum depth?
Dive And See standardizes this underwater Ethernet product family for applications up to 100 m / 328 ft. Verify the rating of the complete system before deployment.
How quickly can a custom connector be assembled?
Standard assembly is typically 6–8 business days. Expedited 3-business-day assembly is available for many configurations for an additional 15% fee, subject to production availability.
Important Installation & Tightening Warning
Verify the housing thread and installation dimensions before ordering. Before submerging the system, make sure the external waterproof mating connector is fully tightened by hand. Do not use pliers. Improper installation or tightening may cause flooding, signal loss, or equipment damage.
Need a Custom Underwater Ethernet Connector?
Tell us what you need to connect. Send us the housing thread, wall thickness, internal pigtail length, required termination, external cable length, quantity, and required delivery date. Dive And See can help configure the complete underwater Ethernet connection.