USB / RJ45 / HDMI / Type-C / Fiber
Industrial Circular Signal Connectors for Reliable Data & Control Transmission
Our industrial circular signal connectors provide sealed, vibration-resistant connections for USB, RJ45, HDMI, Type-C, fiber, data, video, and control systems in harsh field environments.
- Multiple interface options for data, video, control, and communication systems
- IP68 and IPX9K protection options for harsh operating environments
- Secure locking mechanism for stable, vibration-resistant connections
- Configurations available to support applicable GB/T and TÜV requirements
- Custom connector layouts, cable assemblies, OEM branding, and packaging
- Sample support and scalable production for projects of different volumes
- Responsive technical assistance from inquiry through delivery
What Is an Industrial Circular Waterproof Signal Connector?
An industrial circular waterproof signal connector is a sealed multi-pin connector used to transmit data, control signals, and low-voltage power in wet, dusty, or vibration-prone environments.
Unlike ordinary indoor connectors, waterproof signal connectors are designed with sealed housings, locking structures, and protected contact systems. They help keep signal transmission stable when equipment is exposed to rain, washdown, dust, humidity, or frequent outdoor use.
pvlinktech supplies circular waterproof connector solutions for USB, HDMI, RJ45, Type-C, fiber optic interfaces, industrial automation, outdoor lighting, surveillance systems, renewable energy equipment, and customized wiring projects.
Waterproof interface protection
Stable signal transmission
Custom cable assembly support
OEM / ODM bulk supply
How to Select Industrial Circular Signal Connectors？
Selecting industrial circular signal connectors starts with the signal type, operating environment and installation method. For reliable long-term performance, match the interface, ingress-protection rating, shielding and locking mechanism to the actual equipment requirements—not only to the connector appearance.
01 — Interface
Signal & Protocol
Ethernet, USB, HDMI, Type–C or fiber.
02 — Protection
Installation Environment
IP67, IP68 or IPX9K according to exposure.
03 — EMC
Signal Integrity
Shielding and grounding for noisy environments.
04 — Locking
Mechanical Retention
Threaded, bayonet or push–pull coupling.
Interfaces
Choose the Interface and Signal Protocol
Start with the equipment interface and communication requirement. RJ45 connectors are commonly used for industrial Ethernet, PoE cameras and networked control systems. USB and Type–C are suitable for data transfer, charging and service ports, while HDMI supports video transmission for displays and inspection equipment. Fiber solutions are appropriate when long-distance transmission, electrical isolation or resistance to electromagnetic interference is required.
Before selecting a connector, confirm the protocol, required bandwidth, connector gender, mounting type and cable-routing space. The connector should support the complete system requirement, including the cable and mating panel connector.
IP Ratings
Match the IP Rating to the Installation Environment
Select the protection rating according to the real installation conditions. IP67 is generally suitable for dust exposure and temporary immersion. IP68 is better suited to applications requiring a defined level of continuous or deeper water protection. IPX9K is relevant for equipment exposed to high-pressure, high-temperature washdown. For additional guidance on IP protection classifications, refer to TÜV Rheinland’s IEC 60529 IP rating guide.
Always evaluate the assembled connection rather than the connector alone. Cable diameter, sealing components, mating status and panel installation can all affect the final protection performance.
EMC Shielding
Consider EMC Shielding and Grounding
In industrial automation, inverter monitoring, outdoor surveillance and machine–control systems, electromagnetic interference can affect data quality and communication stability. For these environments, consider shielded circular connectors, shielded cable and a defined grounding path through the connector shell and equipment enclosure.
EMC performance should be evaluated as a system. Check the cable shield termination, enclosure material, grounding design and nearby sources of electrical noise such as motors, drives, relays and power cables.
Locking Styles
Select a Locking Method for Vibration Resistance
The locking method should match the equipment’s vibration level, access requirements and available installation space. Threaded coupling provides a secure mechanical connection for many industrial installations. Bayonet locking allows faster mating while maintaining positive retention, and push–pull locking can be useful where frequent connection and disconnection is required.
Also confirm the required mating cycles, cable strain relief, panel thickness and whether the connector must be operated with gloves or in a limited-access service area.
Common Applications Across Demanding Industries
PVLinkTech waterproof signal connectors are developed for outdoor equipment, energy systems, lighting, monitoring devices, and industrial applications where stable signal transmission and environmental protection are essential.
Portable And Off-Grid Energy
Supports signal and low-voltage connections for portable power stations, outdoor energy storage units, field equipment, and temporary power systems.
Photovoltaic Inverter Systems
Helps protect monitoring, communication, and control signal connections in inverter enclosures and solar power system equipment.
Outdoor LED Display
Designed for signage, advertising screens, and outdoor display systems that require stable signal connection under rain, dust, and temperature changes.
Instrument And Testing Equipment
Suitable for sensors, laser devices, measurement instruments, and field equipment where stable signal continuity is important.
Outdoor Surveillance Systems
Works with cameras, monitoring boxes, smart poles, and security system wiring where weather protection and signal reliability are required.
Landscape Lighting Systems
Provides protected signal and low-voltage connection support for garden lighting, architectural lighting, outdoor fixtures, and smart lighting controls.
Wholesale Industrial Circular Waterproof Signal Connectors By Types
Every industrial signal has unique demands — bandwidth, pin count, protocol, and environment all vary from project to project. That’s why we engineered a complete family of IP67/IP68 waterproof circular connectors covering all major signal types: Ethernet, USB, HDMI, USB Type-C, and fiber optic.
Browse by category below to find the right connector for your application. Each series features rugged metal or high-performance nylon housings, gold-plated contacts, silicone sealing, and thousands of mating cycles.
Industrial Signal Connector Selection Guide
| Interface | Typical Applications | Selection Considerations |
|---|---|---|
| Ethernet / RJ45 | Industrial networks, PoE cameras, machine communication, remote monitoring and control cabinets. | Confirm network category, shielding, PoE requirement, cable diameter and vibration exposure. |
| USB | Service ports, device communication, data transfer, charging and portable industrial equipment. | Check the USB standard, required power delivery, insertion frequency and available panel space. |
| HDMI | Outdoor LED displays, inspection equipment, digital signage and industrial video systems. | Confirm video resolution, cable length, bend radius and the required sealing level for the installation environment. |
| USB Type-C | Compact control panels, charging ports, modern service interfaces and portable equipment. | Evaluate data, charging and display requirements separately, then confirm cable orientation and mechanical protection. |
| Fiber Optic | Long-distance communication, electrically isolated systems, outdoor networks and high-EMI industrial environments. | Check fiber type, connector format, bend radius, termination method and the protection required at the cable entry point. |
RJ45 Waterproof Industrial Signal Connector
When your Ethernet connection can’t afford to fail, our waterproof RJ45 connectors keep data flowing — rain or shine, indoors or out.
Available in LP-16 series for standard industrial use and the YT series for heavy-duty extreme environments. These connectors support CAT5E, CAT6, and CAT6A cabling with data rates up to 10 Gbps.
Whether you need a single panel-mount socket or thousands of units for a production run, we’ve got you covered — from prototype to bulk delivery.
LP-16 Series Technical Specification
| Series | LP-16 RJ45 | Connector Type | Circular Waterproof RJ45 |
|---|---|---|---|
| Signal Type | Ethernet Signal | Interface Standard | RJ45 (8P8C) |
| Ethernet Category | CAT5E / CAT6 | Data Rate | 10 / 100 / 1000 Mbps |
| Number of Contacts | 8 PIN | IP Rating (Mated) | IP67 (1m / 0.5h) |
| Working Voltage | 125 V AC | Working Current | 1.5A / 26AWG |
| Contact Resistance | ≤50mΩ | Insulation Resistance | ≥100MΩ |
| Flame Retardant Rating | UL94 V-0 | Mating Cycles | ≥1,900 times |
| Locking Method | Threaded Coupling | Shell Material | Zinc Alloy / PBT |
| Contact Material | Copper Alloy, Gold Plated | Sealing Material | Silicone Rubber |
| Cable Diameter | Φ4.0mm – Φ6.5mm | Mounting Type | Panel Mount / Rear / Front / Inline |
| Operating Temperature | -40°C to +85°C | Storage Temperature | -40°C to +85°C |
Product List
| Model | Housing | Type | Mounting | Description |
|---|---|---|---|---|
| LP16S-RJ45 | Metal | Cable Plug | Free-hanging | Metal shielded cable plug with integrated cable gland |
| LP16S-RJ45 | Plastic | Cable Plug | Free-hanging | Lightweight plastic cable plug with integrated cable gland |
| LP16L-RJ45 | Plastic | In-line Adapter | Free-hanging | In-line mating adapter for cable-to-cable connections |
| LP16P-RJ45 (2 screw holes) | Metal | Panel Socket | Panel mount, 2-hole flange | Metal panel-mount socket with 2-hole fixing flange |
| LP16P-RJ45 (2 screw holes) | Plastic | Panel Socket | Panel mount, 2-hole flange | Plastic panel-mount socket with 2-hole fixing flange |
| LP16P-RJ45 (4 screw holes) | Metal | Panel Socket | Panel mount, 4-hole flange | Metal panel-mount socket with 4-hole fixing flange |
| LP16P-RJ45 (4 screw holes) | Plastic | Panel Socket | Panel mount, 4-hole flange | Plastic panel-mount socket with 4-hole fixing flange |
LP16S-RJ45
LP16S-RJ45
LP16L-RJ45
LP16P-RJ45 (2 screw holes)
LP16P-RJ45 (2 screw holes)
LP16P-RJ45 (4 screw holes)
LP16P-RJ45 (4 screw holes)
ER-RJ45 Series Technical Specification
| Series | LP24 RJ45 | Connector Type | Circular Waterproof RJ45 |
|---|---|---|---|
| Signal Type | Ethernet Signal | Interface Standard | RJ45 (8P8C) |
| Ethernet Category | Cat5E / Cat6 | Data Rate | 10/100/1000 Mbps |
| Number of Contacts | 8 PIN | IP Rating (Mated) | IP67 (IP68 Optional: IM/2H) |
| Working Voltage | 125V | Working Current | 1.5A / 26AWG |
| Contact Resistance Max. | 30mΩ | Insulation Resistance Min | 500MΩ |
| Transmission Rate | 10Gb/s | Durability | ≥1,900 times |
| Locking Method | Threaded Coupling | Shell Material | Zinc Alloy / PBT |
| Contact Material | Copper Alloy, Gold Plated | Sealing Material | Silicone Rubber |
| Cable Diameter | Ø5.5mm – Ø7.0mm | Mounting Type | Panel Mount (Rear / Front) / In-line |
| Operating Temperature | -40℃ to +85℃ | Storage Temperature | -40℃ to +85℃ |
| Certifications | CE, UL, RoHS | Salt Spray Rating | 48 hours (per GB/T 2423) |
| Vibration Resistance | 10–55Hz, 1.5mm amplitude |
Product List
| Model | Housing | Type | Mounting | Description |
|---|---|---|---|---|
| LP24S-RJ45 | Metal | Cable Plug | Free-hanging | Metal shielded cable plug, threaded locking |
| LP24S-RJ45 | Plastic | Cable Plug | Free-hanging | Plastic cable plug, threaded locking |
| LP24L-RJ45 | Metal | In-line Socket | Free-hanging | Metal in-line mating socket for cable-to-cable joins |
| LP24L-RJ45 | Plastic | In-line Socket | Free-hanging | Plastic in-line mating socket for cable-to-cable joins |
| LP24P-RJ45 | Metal | Panel Socket | Panel mount, rear nut | Metal panel-mount socket, rear-nut fixing |
| LP24P-RJ45 | Plastic | Panel Socket | Panel mount, rear nut | Plastic panel-mount socket, rear-nut fixing |
| LP24P-RJ45 (Flange) | Metal | Panel Socket | Panel mount, flange | Metal panel-mount socket with square flange |
| LP24P-RJ45 (Flange) | Plastic | Panel Socket | Panel mount, flange | Plastic panel-mount socket with square flange |
LP24S-RJ45
LP24S-RJ45
LP24L-RJ45
LP24L-RJ45
LP24P-RJ45
LP24P-RJ45
LP24P-RJ45 (Flange)
LP24P-RJ45 (Flange)
LP-24 Series Technical Specification
| Series | ER-RJ45 | Connector Type | Heavy-Duty Circular Waterproof RJ45 |
|---|---|---|---|
| Signal Type | Ethernet Signal | Interface Standard | RJ45 (8P8C) |
| Ethernet Category | Cat5E / Cat6 / Cat6A | Data Rate | 10/100/1000 Mbps (Cat6A: up to 10Gbps) |
| Number of Contacts | 8 PIN | IP Rating (Mated) | IP67 / IP68 |
| Working Voltage | ≤50V AC/DC | Working Current | ≤1.5A per contact |
| Contact Resistance Max. | ≤30mΩ | Insulation Resistance Min. | ≥500MΩ |
| Dielectric Strength | 1000V AC (1 min) | Mating Cycles | ≥5,000 |
| Locking Method | Bayonet Quick Lock | Shell Material | Zinc Alloy (Heavy-Duty) |
| Shell Plating | Nickel Plated | Contact Material | Copper Alloy, Gold Plated |
| Sealing Material | Silicone Rubber | Cable Diameter | Ø5.0mm – Ø10.0mm (varies by model) |
| Mounting Type | Panel Mount (Rear / Front) / In-line | Operating Temperature | -40°C to +80°C |
| Storage Temperature | -40°C to +80°C | Certifications | CE, UL, RoHS |
| Salt Spray Rating | 48 hours | ||
Product List
| Model | Housing | Type | Mounting | Description |
|---|---|---|---|---|
| ER-43101 | Metal | Push-Pull Metal Plug | Free-hanging | Full metal cable plug with push-pull locking |
| ER-43301 | Metal | Flange Socket with PCB | Panel mount, flange | Single-port panel socket with integrated PCB board for direct soldering |
| ER-43401 | Metal | Flange Socket with PCB (90°) | Panel mount, flange | 90° angled dual-port panel socket with PCB board, bottom RJ45 port |
| ER-43201 | Metal | Flange Socket (180° dual) | Panel mount, flange | 180° straight-through dual-port panel socket |
| ER-42201 | Plastic | Threaded Plastic Socket | Panel mount | Threaded plastic panel mount socket |
| ER-42101 | Plastic | Bidirectional Panel Socket (180°) | Panel mount | 180° bidirectional panel pass-through socket |
| ER-42401 | Plastic | Threaded Plastic Plug | Free-hanging | Threaded plastic cable plug |
| ER-42301 | Plastic | Bidirectional Adapter (180°) | Free-hanging / In-line | 180° bidirectional RJ45 pass-through adapter |
ER-43101
ER-42201
ER-43301
ER-42101
ER-43401
ER-42401
ER-43201
ER-42301
Comparison RJ45 vs ER-RJ45
Model
LP-16 RJ45
YT-RJ45 (ER-RJ45)
Photo
Design Philosophy
Standard industrial
Heavy-duty / extreme
IP Rating
IP67
IP67 / IP68
Ethernet Category
Cat5e / Cat6
Cat5e / Cat6 / Cat6A
Max Data Rate
1 Gbps
Up to 10 Gbps
Lock Type
Threaded
Bayonet Quick Lock
Shell Construction
Zinc Alloy / Nylon
Full Zinc Alloy (Heavy-Duty)
Salt Spray
48 hrs
96 hrs
Shock Resistance
Standard
100G, 6ms
Best For
General industrial, LED, outdoor
Mining, marine, military, oil & gas
Engineering Support and Custom Cable Assemblies
A connector performs reliably only when the interface, cable, sealing, shielding, and mounting method work together. PVLink supports project teams in defining a practical connection solution for their equipment and installation conditions.
Support for Connector Selection
Share your application details, and our team can help identify a suitable interface and configuration before production or installation begins.
- Interface and protocol compatibility review
- IP rating and environmental exposure assessment
- Locking method, panel-mount, and cable-entry guidance
- Shielding and grounding considerations for signal stability
Custom Cable Assembly Options
For projects that require a complete connection solution, cable assemblies can be configured around the equipment layout and operating environment.
- Specified cable length, jacket material, and outer diameter
- Connector combinations for panel and inline installation
- Custom overmolding, labeling, color coding, and packaging
- Samples for fit, routing, and installation evaluation
Why Choose pvlinktech Waterproof Signal Connectors?
pvlinktech provides high-reliability waterproof signal connection solutions for global buyers—combining IP67/IP68 sealing, zero-loss transmission, custom cable assemblies, and OEM/ODM manufacturing capability.
Reliable connection starts with application-tailored design.
Waterproof signal connectors demand more than basic sealing. We engineer solutions that ensure stable contact resistance, rugged mating durability, EMI protection, and long-term operation in demanding environments.
IP67 / IP68 Protection
Precision-molded gaskets and sealing structures isolate contacts from water submersion, dust intrusion, chemical exposure, and outdoor weathering.
High-Integrity Transmission
Gold-plated contacts and shielded housing designs reduce signal loss and resistance for critical data, control, and low-voltage power links.
Versatile Interface Types
Full range support for RJ45, USB, HDMI, Type-C, Fiber Optic, and M8/M12 aviation circular connectors configured to your layout.
Custom Cable Harnessing
Full OEM/ODM customization covering wire gauge, pin definitions, overmolding, custom lengths, labeling, and complete assembly specs.
Industrial Circular Signal Connector FAQs
Find answers to common selection questions for waterproof data, video and control connectors used in industrial and outdoor environments.
What is the difference between an industrial circular signal connector and a power connector?
Industrial circular signal connectors are designed for data, video, communication and low-voltage control signals, such as Ethernet, USB, HDMI, Type-C and fiber. Power connectors are designed primarily for electrical power transmission and are selected according to voltage, current, cable size and thermal requirements. In a BESS or inverter system, both connector types may be used for different functions.
How do I choose between RJ45 Ethernet and fiber optic connectors?
RJ45 is a practical choice for standard industrial Ethernet networks, PoE devices and short-to-medium cable runs. Fiber optic is usually the better option for long-distance transmission, electrical isolation or installations with high electromagnetic interference. The final selection should consider the communication protocol, cable route and environment.
What is the difference between IP67, IP68 and IPX9K protection?
IP67 generally covers dust protection and temporary immersion. IP68 is intended for more demanding immersion conditions defined for the specific connector and installation. IPX9K is used where high-pressure, high-temperature washdown may occur. Always verify the rating of the complete mated connector, cable and panel installation.
When is EMC shielding important for signal connectors?
EMC shielding is important when connectors are installed near motors, variable-frequency drives, relays, inverters or high-current cables. A shielded connector and cable assembly can help maintain stable signal transmission, but the grounding path and equipment enclosure design must also be considered as part of the complete system.
Which locking method is best for vibration-prone equipment?
Threaded coupling is widely used where secure mechanical retention is required. Bayonet locking can provide faster mating with positive retention, while push-pull designs are useful for equipment that needs frequent service access. Select the locking style based on vibration, mating frequency, installation space and maintenance requirements.
Can these connectors be used in energy storage systems?
Yes. Industrial circular signal connectors can be used for BMS communication, inverter monitoring, remote diagnostics and low-voltage control circuits in energy storage systems. They should not be selected as a substitute for high-current DC power connectors used between battery modules, inverters and power-distribution equipment.
What information is needed for a custom cable assembly request?
Please provide the interface type, cable length, cable outer diameter, wire or fiber specification, connector gender, mounting method, required IP rating, shielding requirement and expected application environment. Photos, drawings or a wiring diagram can help confirm compatibility before sampling.
