The DNC-2130 Underwater 3G-SDI and Teradek RT Lens-Control Bulkhead Connector creates a sealed M16x1 interface for live SDI video and remote lens control through an underwater camera housing.
It combines a 3G-SDI video path with a 5-pin lens-control connection in one compact bulkhead. When paired with the DNC-1142 underwater 3G-SDI and LCS surface cable , the system allows a surface operator to monitor 1080p60 video and operate compatible Teradek RT focus, iris, and zoom motors on a submerged cinema camera system.
Designed as a matched system
DNC-2130 provides the housing bulkhead interface. DNC-1142 provides the 100 ft (30 m) underwater-to-surface cable with BNC video and 5-pin LEMO-compatible control connections at the surface.
Quick Overview
- Two functions in one bulkhead: Teradek RT lens control plus 3G-SDI live video.
- M16x1 housing interface: Available in short- and long-thread configurations.
- 5-pin control connection: Intended for compatible Teradek RT lens-control workflows.
- 1080p60 SDI: Supports SMPTE 424M 3G-SDI video up to 1080p60.
- 160 m depth rating: Rated to 240 PSI / 160 m (525 ft).
- Built-in Water Block: Helps maintain housing vacuum and limit water migration after external cable damage.
- Matched cable: Compatible with the DNC-1142 100 ft SDI/LCS surface cable.
- Assembled in the USA: Built for professional underwater cinema and remote-camera applications.
How DNC-2130 and DNC-1142 Work Together
- The DNC-2130 is installed through the M16x1 port of the underwater camera housing.
- Internal SDI and control leads connect the bulkhead to the camera and compatible lens-control equipment inside the housing.
- The underwater end of the DNC-1142 cable connects to the external DNC-2130 interface.
- At the surface, the DNC-1142 BNC connector connects to a compatible SDI monitor, recorder, switcher, or converter.
- The DNC-1142 5-pin LEMO-compatible connector connects to supported Teradek RT control equipment.
- The operator receives live 1080p60 video while controlling compatible focus, iris, and zoom motors from the surface.
3G-SDI Live Video
The DNC-2130 supports SMPTE 424M 3G-SDI transmission at stated bit rates of 2.970 Gbit/s and 2.970/1.001 Gbit/s, with video formats up to 1080p60. The camera output, internal coax, DNC-2130 bulkhead, DNC-1142 cable, surface BNC interface, monitor, recorder, and all other components must support the selected SDI format.
Teradek RT Lens-Control Path
The separate control path is intended for compatible Teradek RT lens-control equipment. Depending on the complete system configuration, a surface operator can control focus, iris, and zoom motors on the underwater camera rig without opening the housing.
Available functions depend on the controller, receiver, lens motors, camera interface, wiring, connector pinout, lens, firmware, and motor configuration. Confirm the complete equipment chain before ordering.
5-Pin Lens-Control Connector
The 5-pin interface provides the control connection used in the compatible DNC-2130 and DNC-1142 Teradek RT workflow. Connector series, keying, gender, and pinout must be confirmed before installation because visually similar circular connectors may not be electrically compatible.
Built-In Water Block
The DNC-2130 includes a built-in Water Block designed to help maintain vacuum integrity when the housing is used with an AirLock-type vacuum system. It also helps limit water migration toward the housing interior if the external cable or cable-to-bulkhead connection is damaged.
The Water Block is an additional protective feature. It does not replace correct installation, O-ring inspection, proper tightening, strain relief, vacuum testing, pressure testing, or routine maintenance.
Thread and Installation Options
- M16x1 short thread: Commonly used with compatible Nauticam and Salty housing installations.
- M16x1 long thread with security nut: Commonly used with compatible Aquatica, Amphibico, and through-hole installations.
Housing compatibility must be confirmed from the exact thread pitch, usable thread length, housing wall thickness, sealing surface, internal clearance, and required security-nut arrangement. A 16 mm opening alone does not guarantee compatibility.
Technical Specifications
| Model | DNC-2130 |
|---|---|
| Product type | Underwater SDI and lens-control bulkhead connector |
| Primary application | Teradek RT lens control plus 3G-SDI live video |
| Housing interface | M16x1 threaded port or engineered 16 mm through-hole installation |
| Thread options | M16x1 short thread or M16x1 long thread with security nut |
| Control interface | 5-pin lens-control connection for supported Teradek RT equipment |
| Video channel | 3G-SDI |
| Maximum stated video format | 1080p60 |
| SDI standard | SMPTE 424M |
| Depth rating | 240 PSI / 160 m (525 ft) |
| Water protection | Built-in Water Block |
| Compatible cable | DNC-1142 underwater 3G-SDI and LCS surface cable |
| Matched cable length | 100 ft (30 m) |
| Assembly | USA |
Applications
- Underwater ARRI ALEXA Mini cinema camera systems
- Teradek RT remote focus, iris, and zoom control
- Underwater film, television, and commercial production
- Surface monitoring and recording of submerged 3G-SDI cameras
- Remote camera systems deployed from cranes, gimbals, jibs, and stabilizers
- Custom professional underwater camera housings
Compatibility
DNC-2130 is designed to connect with the DNC-1142 100 ft underwater 3G-SDI and LCS cable for Teradek RT .
Before ordering, confirm:
- The exact camera model and underwater housing
- The M16x1 thread, usable length, and housing wall thickness
- Whether short-thread or long-thread installation is required
- The exact 5-pin connector series, keying, gender, and pinout
- The Teradek RT controller, receiver, and lens motors
- The camera-side control interface and required lens functions
- The SDI output format and surface monitoring equipment
Related Products and Categories
- DNC-1142 underwater SDI and Teradek RT lens-control cable
- ARRI LBUS and LCS underwater cables
- Underwater camera-control cables
- Underwater combo bulkhead connectors
Frequently Asked Questions
Which cable should be used with DNC-2130?
Use the DNC-1142 underwater 3G-SDI and LCS surface cable. It provides the matched underwater connector, 100 ft cable, surface BNC video connection, and 5-pin LEMO-compatible Teradek RT control connection.
Can SDI video and lens control operate simultaneously?
Yes. DNC-2130 provides separate paths for 3G-SDI video and compatible lens control through the matched DNC-1142 cable.
Does DNC-2130 support 4K SDI?
No. The DNC-2130 is specified for SMPTE 424M 3G-SDI up to 1080p60.
Does it include the DNC-1142 cable or Teradek equipment?
No. DNC-2130 is the bulkhead connector. The DNC-1142 cable, Teradek controller, receiver, lens motors, camera, housing, monitor, recorder, and power equipment are sold separately unless explicitly included in the selected configuration.
Will it fit any 16 mm housing opening?
Not automatically. Confirm the M16x1 thread pitch, usable thread length, housing wall thickness, sealing surface, internal clearance, and security nut requirements before ordering.
What is the difference between the short- and long-thread versions?
The short-thread version is intended for compatible threaded housing ports. The long-thread version provides additional usable thread length and may be installed with a security nut in compatible housing walls or through-holes.
Important Installation and Tightening Instructions
Prevent flooding and equipment damage
Before submerging, verify that the external cable coupling nut is fully tightened by hand. Do not use pliers or other tools on the coupling nut. An incompletely tightened underwater connection may leak or flood.
- Confirm the exact housing thread and installation dimensions before mounting.
- Inspect all O-rings, threads, sealing surfaces, connector bodies, and protective components before every deployment.
- Verify the internal wiring and exact 5-pin connector pinout before connecting equipment.
- Provide proper internal and external strain relief.
- Set and test lens-motor direction, torque, and travel limits before underwater use.
- Test SDI video, lens control, vacuum integrity, and waterproof sealing before submerging the housing.
Compatibility notice: Submit the camera, housing, thread configuration, DNC-1142 cable, Teradek model, lens motors, connector pinout, and SDI format before ordering a custom DNC-2130.
