DNC-2140 Underwater Shielded Cat7 Ethernet M16 Long-Thread Bulkhead Connector
DNC-2140 is an underwater shielded Cat7 Ethernet bulkhead connector with M16x1 long-thread design, built for high-speed LAN communication through underwater housings, marine enclosures, and custom camera systems.
This connector is designed for applications where reliable Ethernet data transmission is required through a sealed 16mm / M16 housing port. The long-thread configuration is useful for housings or enclosures that require additional thread engagement and a security nut.
Overview
DNC-2140 uses shielded Cat7 Ethernet cable construction with stranded T-568B wiring and is designed to support LAN Ethernet data transmission up to 10 Gigabit capability, depending on the complete cable, device, and installation configuration.
It is suitable for IP cameras, underwater camera systems, remote control, PoE-style workflows, inspection systems, and marine electronics where Ethernet communication must pass through a waterproof housing wall.
Key Features
- Underwater shielded Cat7 Ethernet bulkhead connector
- M16x1 long-thread design for compatible housings
- Designed for 16mm / 0.625 inch housing openings
- LAN Ethernet data transmission up to 10 Gigabit capability
- Shielded high-speed Cat7 cable construction
- Stranded T-568B wiring
- 23 AWG copper conductors
- 50 micron gold-plated shielded RJ45 plug
- Marine aluminum body with hard anodized coating
- Gold-plated brass contacts
- Built-in water block for housing protection
- Depth rating: 160m / 240 PSI
- Custom cable length and connector options available
Long-Thread Housing Applications
The M16x1 long-thread version is intended for housings and enclosures that require a longer threaded section and security nut. This can be useful for Aquatica, Amphibico, Aquatech-style housings, and custom marine enclosures depending on port thickness and installation design.
For Nauticam-style housings or installations requiring a short-thread connector, review the matching short-thread Ethernet bulkhead connector option.
Applications
- Underwater Ethernet LAN systems
- IP cameras and network cameras
- ROV-style control and monitoring systems
- PoE / Power over Ethernet applications
- Remote camera control over Ethernet
- Security and inspection camera systems
- Marine electronics and underwater housings
- Custom high-speed data pass-through applications
Ethernet Performance
DNC-2140 is designed for high-speed Ethernet communication using shielded Cat7 cable construction. The connector can support LAN data transmission up to 10 Gigabit capability when used with compatible cables, devices, and a suitable system design.
It can also be used for camera control, IP camera communication, RS-485 or RS-232 control workflows through Ethernet-based systems, and PoE-style applications when the full system is designed for the required power and data load.
Installation Notes
DNC-2140 fits M16x1 threaded ports or 0.625 inch / 16mm through-holes. The RJ45 connector can pass through a 16mm housing opening during installation.
Available thread configurations for this connector family include M16x1 short thread for Nauticam-style housings and M16x1 long thread for Aquatica, Amphibico, Aquatech-style housings, and custom enclosures.
Water Block
The DNC-2140 underwater bulkhead connector comes with a built-in water block.
The water block helps keep vacuum inside the housing when using an AirLock vacuum system. It also helps protect the housing against water penetration if the external cable or external connector connection becomes damaged.
Technical Specifications
- Product code: DNC-2140
- Connector type: underwater Ethernet bulkhead connector
- Ethernet category: shielded Cat7
- Data speed capability: up to 10 Gigabit Ethernet
- Wiring standard: T-568B
- Conductor gauge: 23 AWG
- Port size: 16mm / 0.625 inch
- Thread: M16x1 long thread
- Material: marine aluminum with hard anodized coating
- Contacts: gold-plated brass
- Depth rating: 160m / 240 PSI
Compatibility
DNC-2140 is compatible with Dive And See LAN Ethernet cable assemblies, including DNC-1020, DNC-1044, DNC-1148, and DNC-1101.
Custom cable lengths and connector configurations may be available for specific underwater Ethernet systems.
Outline Drawing
Outline dimensions drawing for an underwater M16 long-thread bulkhead connector.

Frequently Asked Questions
What is DNC-2140 used for?
DNC-2140 is used to pass shielded Ethernet data through an underwater housing or marine enclosure using an M16 long-thread bulkhead connection.
What is the difference between DNC-2140 and short-thread Ethernet connectors?
DNC-2140 uses an M16x1 long-thread design. It is better suited for housings or enclosures that require a longer threaded section and security nut.
Does it support 10 Gigabit Ethernet?
The connector is designed for shielded Cat7 Ethernet systems with up to 10 Gigabit capability, depending on the complete cable, device, and installation configuration.
Can it be used for PoE?
Yes, it can be used in PoE-style systems when the full cable assembly and connected equipment are designed for the required power and data load.
Which cables are compatible?
Compatible Dive And See Ethernet cables include DNC-1020, DNC-1044, DNC-1148, and DNC-1101.