IE2F 2-Channel Female EO Wet-Mate Underwater Fiber Optic Connector
Product Overview
The
HYSF SUBSEA IE2F EO Underwater Pluggable Connector is a two-channel female underwater fiber optic connector designed for ROV systems, AUV platforms, subsea cameras, oceanographic instruments, and offshore communication networks.Belonging to the IE-Series Electro-Optical (EO) underwater connector family, the IE2F provides two independent optical channels within a compact subsea connector interface.The connector supports both single-mode (SM) and multimode (MM) optical fiber configurations, making it suitable for high-bandwidth underwater data transmission.Unlike conventional dry-mate optical connectors, the IE2F features a wet-mate connection design, allowing compatible connector halves to be connected and disconnected underwater when the assembly is used within its qualified operating conditions.The reference configuration specifies optical insertion loss below 0.5 dB per channel and return loss above 40 dB.With single-mode fiber, the reference product supports data transmission rates up to 10 Gbps, while multimode configurations support up to 1 Gbps.The connector features a chloroprene rubber body, a 316 stainless steel housing, precision zirconia optical ferrules, and a dedicated sealing arrangement.Titanium housing is available as an optional configuration for weight-sensitive subsea equipment.The IE2F is particularly suitable for applications requiring reliable optical communication between underwater equipment without recovering the entire system to the surface for connection or disconnection.
Key Features and Benefits
1. Two-Channel Fiber Optic Configuration
The IE2F incorporates two independent optical fiber channels within one underwater connector interface.This configuration provides a compact solution for subsea optical communication systems requiring multiple fiber channels.Typical applications include:
- ROV fiber optic tether connections
- Underwater camera data transmission
- Subsea video communication
- AUV communication systems
- Acoustic positioning equipment
- Oceanographic instrumentation
- Subsea monitoring networks
- Offshore sensor communication
The two-channel arrangement allows engineers to integrate optical communication into compact underwater equipment.
2. Wet-Mate Underwater Connection
The IE2F is designed as an underwater pluggable connector.Its wet-mate interface allows compatible male and female connector halves to be connected and disconnected underwater without requiring the equipment to be recovered to the surface.The reference design uses protective wiper rings around the optical mating interface.These sealing elements help protect the optical mating surfaces during underwater connection.Key benefits include:
- Underwater connection capability
- Underwater disconnection capability
- Reduced equipment recovery requirements
- Convenient ROV-assisted intervention
- Suitable for permanent subsea installations
- Improved flexibility for subsea maintenance operations
The complete mating procedure must follow the approved connector manufacturer’s instructions.
3. Single-Mode and Multimode Fiber Compatibility
The IE2F supports different optical fiber configurations.
Single-Mode Fiber (SM)- Fiber specification: 9/125 μm
- Reference transmission rate: Up to 10 Gbps
- Suitable for long-distance optical communication
- Suitable for high-bandwidth ROV and subsea network applications
Multimode Fiber (MM)- Fiber specification: 50/125 μm
- Fiber specification: 62.5/125 μm
- Reference transmission rate: Up to 1 Gbps
- Suitable for compatible shorter-distance optical communication systems
The appropriate fiber type should be selected according to transmission distance, optical equipment compatibility, wavelength, and network requirements.
4. Low Optical Insertion Loss
The IE2F reference specification identifies typical optical insertion loss below 0.5 dB per channel.Low insertion loss helps minimize optical signal attenuation at the underwater connector interface.This is particularly important for applications involving:
- High-definition underwater video
- ROV fiber optic communication
- Subsea Ethernet networks
- Oceanographic data transmission
- Underwater monitoring systems
- Long-distance optical communication
Actual optical performance depends on the fiber type, optical alignment, end-face condition, mating procedure, and operating environment.
5. High Optical Return Loss
The reference product specification lists return loss greater than 40 dB.High return loss helps minimize reflected optical power at the connector interface.This is beneficial for optical communication systems requiring stable transmission performance.The actual return loss should be verified using the specified optical fiber type and test wavelength.
6. Precision Zirconia Ferrule
The IE-Series reference design uses a precision zirconia ferrule for optical fiber alignment.Zirconia ceramic provides a stable optical alignment structure and good wear resistance.The precision ferrule helps maintain repeatable optical performance during repeated connector mating operations.Proper cleaning and inspection of optical mating surfaces remain essential for maintaining low insertion loss.
7. Corrosion-Resistant Stainless Steel Housing
The reference IE2F configuration uses 316 stainless steel for the connector housing.This material provides mechanical strength and corrosion resistance for marine and subsea applications.Titanium is available as an optional housing material.Potential material options include:
- 316 Stainless Steel
- Titanium (Optional)
Titanium can be considered for weight-sensitive ROV and AUV applications.The final material selection should consider operating depth, seawater exposure, mechanical loading, and equipment weight requirements.
8. Chloroprene Rubber Connector Body
The reference configuration uses a chloroprene rubber connector body.The elastomer construction provides mechanical protection around the connector interface and supports the sealing arrangement.The rubber body also helps protect the internal optical components from environmental exposure.The exact elastomer compound and sealing qualification should be confirmed against the approved production specification.
9. Underwater Sealing System
The IE2F reference design incorporates protective sealing elements around the optical interface.The product specification identifies nitrile O-rings and chloroprene wiper rings.These sealing elements help protect the optical mating surfaces during subsea operation.The connector should be inspected before deployment to ensure that all sealing components are clean and free from damage.
10. Secure Locking Sleeve
The IE2F reference configuration provides POM or stainless steel locking sleeve options.The locking sleeve helps secure the connector after mating and reduces the risk of accidental separation.The locking sleeve must be installed correctly before subsea deployment.Available reference materials include:
- POM Locking Sleeve
- Stainless Steel Locking Sleeve
The appropriate configuration should be selected according to the equipment installation and mechanical requirements.
11. High-Speed Optical Communication
The IE2F is designed for underwater optical data transmission.The reference product specification identifies:
- Up to 10 Gbps for single-mode fiber
- Up to 1 Gbps for multimode fiber
- Optical insertion loss below 0.5 dB per channel
- Return loss above 40 dB
These capabilities make the connector suitable for high-bandwidth underwater communication systems.Potential applications include high-resolution subsea video, sonar data uplinks, underwater sensor networks, and ROV optical communication.The actual system data rate depends on the complete optical link, including fiber type, transceivers, cable length, and network equipment.
12. 300 Bar Mated Pressure Rating
The reference IE2F product page specifies a mated pressure rating of 300 bar (4,350 psi).This corresponds to approximately 3,000 meters of seawater depth in pressure-equivalent terms.The connector is therefore intended for demanding ROV, AUV, and subsea instrumentation applications within its qualified pressure envelope.The reference page does not specify an open-face pressure rating.The pressure rating of the complete installation should be confirmed through the approved hydrostatic qualification procedure.
13. Flexible Subsea Cable Options
The IE2F can be integrated into customized underwater cable assemblies.The reference product information identifies the following cable jacket options:
- Polyurethane (PUR)
- Synthetic Rubber
Cable length, outer diameter, fiber type, fiber construction, and termination requirements can be specified according to the intended application.The cable assembly should be designed to meet the mechanical and environmental requirements of the complete subsea system.
14. Customization for OEM Projects
The IE2F reference product family supports several customization options.Potential customization requirements include:
- Single-mode or multimode fiber
- Cable length
- Cable jacket material
- Cable outer diameter
- Stainless steel housing
- Titanium housing
- Locking sleeve material
- Optical fiber termination
- Optical performance testing
- Hydrostatic pressure testing
- Customized cable assemblies
Customized configurations should be reviewed and approved against the final mechanical and optical specifications before production.
IE2F Technical Specifications
| Parameter | Reference Specification |
|---|
| Brand | HYSF SUBSEA |
| Model | IE2F |
| Connector Series | IE-Series EO |
| Product Type | Female EO Underwater Pluggable Connector |
| Connector Gender | Female |
| Configuration | Inline |
| Optical Channels | 2 |
| Fiber Type | Single-Mode / Multimode |
| SM Fiber | 9/125 μm |
| MM Fiber | 50/125 μm, 62.5/125 μm |
| Optical Insertion Loss | <0.5 dB / Channel |
| Optical Return Loss | >40 dB |
| Data Rate (SM) | Up to 10 Gbps |
| Data Rate (MM) | Up to 1 Gbps |
| Electrical Voltage | N/A – Optical Only |
| Electrical Current | N/A – Optical Only |
| Mated Pressure Rating | 300 bar / 4,350 psi |
| Open-Face Pressure | Not Specified |
| Wet-Mate Cycles | >200 (Reference Description) |
| Water Temperature | −4°C to +60°C |
| Air Temperature | −40°C to +60°C |
| Connector Body | Chloroprene Rubber |
| Housing Material | 316 Stainless Steel |
| Optional Housing | Titanium |
| Optical Ferrule | Zirconia |
| Sealing | Wiper Rings / Nitrile O-Rings |
| Locking Sleeve | POM / Stainless Steel |
| Cable Jacket | PUR / Synthetic Rubber |
| Cable Length | Customized |
Engineering Note: These specifications are based on the publicly available IE2F optical connector product description. The same source contains an inconsistency between its stated >200 wet-mate cycles and >500 cycles in the specification table. The actual qualification must be confirmed before publishing a guaranteed mating-cycle rating.The IE2F optical configuration should not be assigned electrical voltage or current ratings unless a separately engineered hybrid version is specified.
Optical Fiber Configuration
The IE2F provides two optical channels for subsea data transmission.The reference fiber configurations include:
| Fiber Type | Core / Cladding | Reference Data Rate | Typical Application |
|---|
| Single-Mode | 9/125 μm | Up to 10 Gbps | Long-distance optical links |
| Multimode | 50/125 μm | Up to 1 Gbps | Shorter-distance optical links |
| Multimode | 62.5/125 μm | Up to 1 Gbps | Compatible instrumentation links |
The optical fiber configuration should be selected according to the customer’s network architecture and optical equipment.Before production, verify:
- Fiber type.
- Optical wavelength.
- Fiber channel assignment.
- Optical connector polarity.
- Optical insertion loss.
- Return loss.
- Cable length.
- Optical test requirements.
Both optical channels should be tested individually before final assembly acceptance.
Compatible IE-Series Connectors and Accessories
IE2M – Male EO Underwater Pluggable Connector
The IE2M is the corresponding male inline connector in the IE-Series.It features two optical channels and is designed to mate with the female IE2F connector.Both models share the reference two-channel optical configuration.
IE2F-BC – Female EO Bulkhead Connector
The IE2F-BC is the female bulkhead-mounted version of the IE-Series optical connector.It is intended for installation on subsea equipment housings, instrument panels, and pressure enclosures.It provides a fixed optical interface for compatible male connectors.
IE2M-BC – Male EO Bulkhead Connector
The IE2M-BC is the male bulkhead configuration of the IE-Series.It provides an alternative mounting arrangement for compatible underwater equipment.
IEB4F – 4-Channel Female EO Connector
The IEB4F is a four-channel female EO underwater connector.It is suitable for applications requiring more optical channels within one connector interface.
IEB4M – 4-Channel Male EO Connector
The IEB4M is the corresponding male four-channel connector.It can be used with compatible four-channel female EO configurations.
Locking Sleeves and Dummy Plugs
Protective accessories can be specified to secure and protect the connector interface.Potential accessories include:
- POM Locking Sleeve
- Stainless Steel Locking Sleeve
- Protective Dummy Plug
- Optical Connector Protective Cap
Always confirm the mating configuration and accessory compatibility before ordering.
Typical Applications of IE2F
1. ROV Fiber Optic Tether Connections
The IE2F can be used in ROV fiber optic tether systems requiring reliable high-bandwidth optical communication.It is suitable for transmitting video, sonar, and control data between underwater equipment and surface systems.
2. Subsea Camera Systems
Underwater camera systems frequently require high-bandwidth optical communication for transmitting high-resolution video and image data.The two-channel optical configuration provides a compact connection interface.
3. AUV Docking Systems
Autonomous underwater vehicles may require optical connections for communication and data transfer during docking operations.The wet-mate design provides flexibility for subsea docking interfaces.
4. USBL and Acoustic Positioning Systems
Underwater positioning systems may incorporate optical communication interfaces between sensors, transponders, and subsea processing equipment.The IE2F can be considered for compatible optical uplink applications.
5. Oceanographic CTD and ADCP Equipment
Oceanographic instruments such as CTD profilers and ADCP systems may require optical communication interfaces for transferring measurement data.The IE2F can be integrated into compatible subsea instrumentation systems.
6. Subsea Sensor Networks
Underwater monitoring networks require reliable data transmission between distributed sensors and subsea communication nodes.Fiber optic connections provide high bandwidth and immunity to electromagnetic interference.
7. Offshore Wind Foundation Monitoring
Offshore wind monitoring systems may incorporate optical communication links between underwater sensors and subsea monitoring equipment.The IE2F can be considered for suitable optical network installations.
8. Subsea Observatories
Permanent underwater observatories require reliable communication connections between sensors, monitoring nodes, and subsea data distribution systems.The wet-mate optical interface provides flexibility for maintenance and equipment replacement.
9. Marine Research Equipment
Oceanographic research platforms frequently use optical connections for transmitting scientific measurement data and high-resolution imaging.
10. Offshore Oil and Gas Monitoring
Subsea oil and gas systems use optical communication networks for equipment monitoring, instrumentation, and remote data transmission.The IE2F can be evaluated for compatible optical communication interfaces.
Installation and Maintenance Guidelines
Step 1: Inspect the Optical Connector
Inspect both connector halves for visible damage, contamination, or defects.Check the optical interface and protective sealing components.
Step 2: Inspect the Sealing Components
Check the wiper rings and O-rings for cuts, deformation, or contamination.Replace damaged sealing components according to the approved maintenance procedure.
Step 3: Check Optical Fiber Compatibility
Confirm that both connector halves use compatible fiber types and optical configurations.Verify single-mode or multimode compatibility.
Step 4: Clean the Optical Interface
Use approved optical cleaning materials and procedures.Avoid touching the optical ferrule surface directly.
Step 5: Align the Connector Halves
Align the mechanical guide features and optical mating interface before connection.Avoid forcing the connectors together at an angle.
Step 6: Complete the Wet-Mate Connection
Follow the manufacturer’s underwater mating procedure.Ensure that the connector is fully engaged and that the locking mechanism is correctly installed.
Step 7: Verify the Locking Sleeve
Install the specified POM or stainless steel locking sleeve before deployment.Check that the connector cannot become accidentally disengaged.
Step 8: Perform Optical Testing
Verify optical insertion loss and return loss according to the approved testing procedure.Test both optical channels individually.
Step 9: Complete Pressure Qualification
Verify the complete connector and cable assembly against the required hydrostatic pressure rating.
Step 10: Post-Deployment Maintenance
Inspect the connector after recovery.Clean the mating surfaces and install protective caps when the connector is not in use.Follow the approved maintenance and storage procedures.
Important: Wet-mate connectors must be operated according to the manufacturer’s specified mating and environmental conditions. Never force a connection or exceed the qualified operating pressure.
Quality Control and Testing
Depending on the approved product configuration and project requirements, HYSF SUBSEA quality-control procedures may include:
- Visual inspection
- Dimensional verification
- Optical ferrule inspection
- Fiber identification
- Optical continuity testing
- Optical insertion loss measurement
- Optical return loss measurement
- Optical channel verification
- Mating compatibility testing
- Locking sleeve inspection
- Sealing component inspection
- Hydrostatic pressure testing
- Wet-mate cycle testing
- Optical performance verification after pressure testing
Optical test reports and hydrostatic pressure test certificates can be specified according to the agreed project requirements.
Frequently Asked Questions
Q1: What is the IE2F underwater connector?
The IE2F is a two-channel female EO underwater pluggable connector designed for subsea fiber optic communication.
Q2: What does EO mean?
EO stands for Electro-Optical. In the published IE2F configuration, the two channels are specified as optical fiber channels rather than electrical power contacts.
Q3: How many optical channels does the IE2F have?
It features two independent optical channels.
Q4: Is the IE2F wet-mate or dry-mate?
The IE2F is specified as a wet-mate underwater optical connector.It is designed to be connected and disconnected underwater with its compatible mating connector.
Q5: What is the difference between IE2F and IE2M?
IE2F is the female connector, while IE2M is the corresponding male connector.Both feature two optical channels.
Q6: What is the difference between IE2F and IE2F-BC?
IE2F is the inline female connector configuration, while IE2F-BC is the female bulkhead configuration designed for fixed installation on equipment housings.
Q7: Which fiber types are supported?
The reference configuration supports single-mode 9/125 μm and multimode 50/125 μm or 62.5/125 μm fibers.
Q8: What is the optical insertion loss?
The reference product specification lists typical insertion loss below 0.5 dB per channel.
Q9: What is the optical return loss?
The reference specification lists return loss greater than 40 dB.
Q10: What is the maximum data transmission rate?
The reference product specification lists up to 10 Gbps for single-mode fiber and up to 1 Gbps for multimode fiber.
Q11: What is the pressure rating?
The detailed IE2F product specification lists 300 bar (4,350 psi) when mated.The open-face pressure rating is not specified.
Q12: Is the IE2F suitable for 7,000-meter underwater operation?
The available detailed product specification lists 300 bar, which is approximately equivalent to 3,000 meters of seawater pressure depth.A 7,000-meter rating should not be claimed without separate engineering qualification.
Q13: What materials are available?
The reference configuration uses a chloroprene rubber body and 316 stainless steel housing, with titanium available as an option.
Q14: Does the IE2F transmit electrical power?
The referenced IE2F optical configuration specifies two optical channels and no electrical voltage or current rating.A separate hybrid electrical and optical configuration would need to be specified if power transmission is required.
Q15: Can the cable length be customized?
Cable length and cable jacket requirements can be specified according to the intended installation and approved product configuration.
Q16: Can the IE2F be used with ROV systems?
Yes. Typical applications include ROV fiber optic tether connections, subsea cameras, sonar data links, and underwater instrumentation.
Q17: Are protective accessories available?
Compatible locking sleeves, dummy plugs, and protective caps can be specified according to the connector configuration.
Q18: Can optical test reports be supplied?
Optical insertion loss and return loss testing can be specified according to the agreed quality-control requirements.
Why Choose HYSF SUBSEA IE2F?
The
HYSF SUBSEA IE2F 2-Channel Female EO Underwater Pluggable Connector provides an optical connection solution for demanding subsea communication systems.Its principal features include:
- Two-channel optical configuration
- Female underwater connector
- Wet-mate connection capability
- Single-mode and multimode fiber compatibility
- Optical insertion loss below 0.5 dB per channel (Reference)
- Optical return loss above 40 dB (Reference)
- Single-mode transmission up to 10 Gbps (Reference)
- Multimode transmission up to 1 Gbps (Reference)
- Precision zirconia optical ferrule
- 316 stainless steel housing
- Optional titanium housing
- Chloroprene rubber connector body
- POM or stainless steel locking sleeve
- PUR or synthetic rubber cable options
- Customized cable assemblies
- Optical testing and hydrostatic qualification options
For ROV manufacturers, AUV developers, subsea communication integrators, oceanographic research organizations, and offshore engineering companies, the IE2F offers a compact two-channel optical interface for underwater communication systems.
