Canon RJ45 connector full analysis
What is an Canon RJ45 connector?
The Canon RJ45 connector is a hybrid connector that combines the mechanical stability of the Canon interface with the Ethernet transmission function of the RJ45. It adopts a circular or quasi-circular design and is equipped with a Canon locking mechanism to provide high-reliability connections. It is suitable for harsh environments that require vibration resistance, dust and water resistance, and electromagnetic shielding. It supports high-speed data transmission (such as Gigabit Ethernet) and is widely used in professional audio and video equipment, industrial automation, stage lighting control, and outdoor communications.
Components of Canon RJ45
Canon RJ45 connectors are usually composed of the following components:
Plug (male)
• Shell: metal or high-strength engineering plastic, providing mechanical protection and electromagnetic shielding.
• Contact: 8-pin gold-plated copper alloy contacts, in line with RJ45 standard arrangement (T568A/B).
• Locking mechanism: latch lock/internal card type, ensuring stable plugging and unplugging.
• Seal: silicone or rubber seal ring, achieving IP67 and above protection level.
• Insulator: high temperature resistant plastic, isolating contacts and fixing cables.
Socket (female)
Shell
• Material: aluminum alloy or high-strength engineering plastic (such as PBT), taking into account both lightweight and impact resistance.
• Shielding design: The metal shell has a built-in electromagnetic shielding layer to reduce external EMI/RFI interference.
• Sealing structure:
Silicone/rubber seal ring: multi-layer sealing design to ensure waterproof and dustproof performance.
Tail cable sealing sleeve: prevent water vapor from penetrating along the cable.
Contact
• Jack type: spring-loaded gold-plated copper alloy jack (8P8C) to ensure low contact resistance.
•Arrangement standard: Comply with T568A/B wiring specifications, support straight-through or cross-connection.
•PoE compatible: high current capacity contacts (such as thick gold plating), support 802.3af/at/bt PoE power supply protocol.
Locking mechanism
•Latch lock/internal card type, ensure stable plugging and unplugging.
•Anti-vibration design: The self-locking mechanism and the shell are integrated to reduce the impact of vibration on connection stability through the principle of mechanical stress dispersion;
Cable fixing components
•Stress relief sleeve: Metal or plastic structure to prevent the cable from bending and causing the internal solder joints to break.
•Tensile sheath: The cable is fixed by screws or clamps to withstand greater tension.
Advantages and disadvantages of Canon RJ45
Advantages
• High reliability: Canon locking mechanism and sealing design, adapt to vibration, humidity and dust environment.
• Anti-electromagnetic interference (EMI): The metal shell and shielding layer effectively suppress signal interference and are suitable for high-frequency data transmission.
• Easy plugging and durability: Supports frequent plugging and unplugging (life ≥ 1000 times), suitable for mobile scenes such as stage equipment.
• Compatibility: RJ45 interface supports standard Ethernet protocol (such as Cat5e/Cat6/Cat7) and is compatible with PoE power supply.
Disadvantages
• Larger size: Compared with the standard RJ45 connector, the Canon design takes up more space.
• Higher cost: The metal shell and complex structure result in a higher unit price than ordinary plastic connectors.
Classification of Canon RJ45 connectors
Classification by self-locking mechanism type
Snap-on self-locking
• Engage with the device port through a plastic/metal snap (闩锁) and need to be pressed to release.
• Features: low cost, strong versatility, suitable for conventional network equipment.
Twist Lock
• Lock with the device port by rotating the thread or knob on the housing.
• Features: High tensile strength, suitable for vibration environments (such as industrial equipment).
Button Lock
• Integrated push button, press the button and pull out when unlocking.
• Features: Easy to operate, prevent accidental touch and fall off, suitable for frequent plugging and unplugging scenarios.
Classification by installation method
Inline
• Directly connect the two ends of the cable without fixing.
• Features: Flexible and portable, suitable for jumper and temporary wiring.
Panel Mount
• Fixed on the device panel or chassis, fixed by screws/slots.
• Features: High stability, suitable for permanent installation (such as switches, industrial computers).
PCB Board Mount
• Directly soldered on the circuit board, used for internal interface of the device.
• Features: space saving and high integration.
Classification by shell material
Plastic shell
•Lightweight design, low cost, suitable for ordinary commercial environments.
Metal housing (shielded type)
•Full metal housing (such as zinc alloy) provides EMI shielding and anti-interference capabilities.
•Features: Suitable for harsh industrial and outdoor environments.
Classification by protection level
Ordinary protection (IP20)
• Basic dustproof, no waterproof capability, suitable for indoor equipment.
Waterproof and dustproof (IP65/IP67)
• Silicone sealing ring design, suitable for outdoor or humid environments.
Classification by transmission performance
Cat5e/Cat6
• Support Gigabit Ethernet, distinguish between unshielded (UTP) and shielded (直通车) versions.
Cat6A/Cat7
• Support 10G transmission, usually with metal shielded shell and high-purity copper core.
Working principle of Canon RJ45
Canno RJ45 connector achieves stable signal transmission through the following mechanisms:
•Electrical connection: 8 gold-plated contacts and jacks form a low-impedance path, supporting differential signal transmission to reduce noise.
•Mechanical locking: Three-point buckle locks the plug and socket to ensure a firm physical connection and resistance to vibration and shock.
•Electromagnetic shielding: The metal shell and internal shielding layer form a Faraday cage to block external electromagnetic interference.
•Sealing protection: Multi-layer sealing rings prevent the intrusion of water, oil and particles to ensure performance in harsh environments.
Application scenarios of Canon RJ45
• Professional audio and video system: integrated connection of signals and power supply for cameras, mixers, and lighting consoles.
• Industrial automation: real-time data transmission and control of PLCs, sensors, and robots.
• Stage and performance equipment: connection of mobile devices, anti-trampling and anti-pulling.
• Outdoor communication base station: waterproof and anti-corrosion design, suitable for high temperature and high humidity environment.
• Rail transit: Ethernet connection of train control system and on-board entertainment equipment.
• Security monitoring: long-distance shielded transmission between high-definition cameras and NVRs.
How to choose the right Canno
Electrical requirements
•Transmission rate: Choose Cat5e (1Gbps) or Cat6A (10Gbps) according to network requirements.
•Power supply requirements: If you need to support PoE (such as 802.3af/at), choose a contact material compatible with high current.
Environmental adaptation
•Protection level: IP67/IP68 is required for outdoor applications, and IP40 can be selected for industrial scenarios. •Temperature range: -40℃~85℃ wide temperature models are suitable for extreme climates.
Mechanical properties
•Plug life: stage equipment is recommended to be ≥1000 times, industrial equipment ≥1000 times. •Vibration resistance level: in accordance with IEC 61373 standards.
Certifications and standards
•Industry certifications: UL, CE, RoHS certifications to ensure safety and environmental protection.
•Protocol compatibility: Support industrial Ethernet protocols (such as EtherNet/IP) or audio and video standards (such as HDBaseT).
With its high protection level and anti-interference ability, the Canno RJ45 connector has become an ideal network connection solution in complex environments.
Users need to choose the appropriate model and configuration based on specific application scenarios, comprehensive electrical performance, environmental requirements, mechanical strength and other factors.
