Electrical Plugs & Sockets

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Onboard Multi-Network Router Reliable Onboard Connectivity for Railway Communication Systems The Onboard Multi-Network Router is a core communication device designed for railway and transit onboard network systems. It provides stable and continuous data connectivity by integrating multiple cellular networks, serving as the central gateway between onboard equipment and ground communication infrastructure. ZTLX Onboard Multi-Network Routers are developed specifically for mobile railway environments and are widely applied in high-speed rail, metro, light rail, and intercity train systems. They form the backbone of onboard networks supporting passenger Wi-Fi, train-to-ground communication, video services, and operational data transmission. Key Functions of an Onboard Multi-Network Router As the central node of onboard communication architecture, an Onboard Multi- Network Router is responsible for: Aggregating multiple cellular network connections for onboard data transmission Acting as the primary gateway between onboard systems and ground networks Supporting continuous connectivity during train movement Enabling unified management of onboard communication traffic It is typically deployed together with onboard wireless access points (AP), access controllers (AC), onboard Ethernet switches, and other onboard communication devices. Product Categories Onboard 4G Multi-Network Router The Onboard 4G Multi-Network Router is designed for railway projects operating on existing LTE networks. It is suitable for cost-effective deployments while maintaining reliable onboard connectivity. Typical application scenarios include: Metro and urban rail onboard communication systems Standard railway onboard Wi-Fi systems Train-to-ground data transmission over 4G networks Retrofit projects upgrading legacy onboard networks Onboard 5G Multi-Network Router The Onboard 5G Multi-Network Router is developed for next-generation railway communication systems requiring higher bandwidth and advanced network capability. It supports modern onboard network architectures aligned with future railway digitalization. Typical application scenarios include: High-speed rail onboard communication systems 5G-enabled onboard Wi-Fi solutions Data-intensive onboard applications New railway projects planning long-term network upgrades Application Scenarios The Onboard Multi-Network Router is widely used in the following railway and transit applications: Onboard Wi-Fi Systems for passenger and crew connectivity Train-to-Ground Communication Systems for real-time data exchange Onboard Video Services including video distribution and management systems Operational Data Transmission for monitoring and system management Integrated Railway Onboard Network Solutions combining routing, switching, and wireless access Integration with Onboard Network Systems The Onboard Multi-Network Router is designed to operate as part of a complete onboard communication system. It can be seamlessly integrated with: Onboard Wireless Access Points (AP) Onboard Wireless Access Controllers (AC) Onboard Ethernet Switches Onboard video and data servers This modular architecture allows flexible system design based on different railway project requirements. Why Choose ZTLX Onboard Multi-Network Router Dedicated design for railway onboard environments Proven suitability for high-speed rail and urban transit systems Flexible deployment for 4G and 5G network architectures Designed for integration into complete onboard communication solutions Suitable for large-scale railway and transit projects ZTLX provides not only onboard devices but also system-level onboard network solutions tailored to railway applications.

Onboard Video-on-Demand (VOD) Server Designed for railway Wi-Fi systems, the ZTDC series video-on-demand (VOD) server is installed in each train carriage. It connects to a central server, providing soft routing and DHCP services. The unit features local data storage and robust media capabilities, supporting at least 120 concurrent video channels, video encoding/decoding, and breakpoint resume playback. For connectivity, it offers a PoE network interface to power and link to onboard Wi-Fi Access Points (APs). It also supports remote maintenance, delivering reliable internet, applications, and video services to passengers. Features: Primary application: serves as the core media server within onboard passenger Wi-Fi entertainment systems. Video performance: capable of supporting at least 120 concurrent video channels, with full encoding/decoding capabilities and breakpoint resume playback functionality. Network functionality: operates as a local network server, providing soft routing, DHCP services, and cached content storage. Key connectivity: features a power over ethernet (PoE) interface for streamlined connection and power delivery to Wi-Fi Access Points (APs). System management: designed for full remote configuration, updates, and diagnostics. Design & compliance: built to railway-industrial grade standards, ensuring compliance with norms such as EN 50155. Specifications: Supports POE*4, 802.3at mode Supports 4 BYPASS Supports software and hardware watchdogs Supports firewall, filtering, blocking, and logging abnormal data packets Supports WEB management Supports remote management Supports management of third-party software plugins Supports up to 2TB storage capacity Supports onboard CDN functionality, file synchronization, content file caching, and web portal services Supports at least 120 local video-on-demand Supports Resume download for video upgrading Supports QoS and VLAN Supports breakpoint resume download Supports remote update of video resources Supports casual and entertainment mini-games If you would like more information about this product, please feel free to contact us. Recommend other popular products for you.: Onboard Network Communication System Supplier

Onboard Wireless Access Point(AP) Onboard Wireless Access Point (AP) for Railway Passenger Service Systems The ZTAP series Onboard Wireless Access Point (AP) is a high-performance, industrial-grade Wi-Fi Access Point specifically designed for rail transit onboard environments. As a key wireless access node within the onboard network architecture, it works in coordination with the Onboard Multi-Network Router and centralized access controllers to deliver stable, high-capacity wireless connectivity for passenger service systems and onboard applications. Optimized RF transmission design ensures consistent signal coverage and reliable performance under high-mobility conditions, making the ZTAP series well suited for metro, high-speed rail, and intercity train deployments where long-term stability and system integration are critical. Designed for Onboard Railway Applications The ZTAP series is engineered as the core onboard Wi-Fi access point for integrated passenger service systems, supporting a wide range of railway onboard applications, including: Onboard passenger Wi-Fi access systems Passenger information and infotainment systems Train operational data access for onboard terminals Wireless connectivity for onboard service equipment Integrated onboard communication networks for multi-carriage trains By focusing on coverage stability and concurrent user capacity, the AP ensures continuous wireless access throughout train carriages, even in high-density passenger scenarios.  Wireless Performance Optimized for Mobile Rail Environments This Onboard Wireless Access Point (AP) supports the latest IEEE wireless standards, providing backward compatibility while enabling higher throughput and improved efficiency for modern onboard Wi-Fi systems. IEEE 802.11 a/b/g/n/ac/ax (Wi-Fi 6) compliant Concurrent dual-band operation (2.4 GHz & 5 GHz) 2×2 MIMO architecture for enhanced signal robustness Peak wireless data rate up to 1800 Mbps Supports up to 120 concurrent client devices The design prioritizes stable signal coverage and reliable throughput rather than theoretical speed, ensuring consistent user experience across moving rail vehicles. Industrial & Railway-Grade Mechanical Design To meet the demanding requirements of rail transit applications, the ZTAP series adopts an industrial-grade, rail-compliant design: Robust aluminum housing for enhanced durability Passive cooling design to eliminate moving parts Optimized for long-term onboard installation Suitable for continuous operation in enclosed carriage environments This construction approach improves system reliability while reducing maintenance requirements over the full lifecycle of the onboard Wi-Fi system. Flexible Deployment: Fat AP and Fit AP Modes The ZTAP series supports both Fat AP and Fit AP working modes, allowing flexible adaptation to different onboard network architectures: Fit AP mode: centrally managed by an onboard Wireless Access Controller (AC) Fat AP mode: standalone operation or cloud-based AC management This flexibility makes the AP suitable for both centralized onboard network designs and distributed deployment scenarios across multi-carriage trains. Comprehensive Management and Maintenance Capabilities To support railway operation and maintenance workflows, the ZTAP series provides comprehensive management and remote maintenance functions: Web-based configuration and management Telnet CLI for advanced configuration Remote software upgrades and batch upgrades FTP and TFTP support Remote Syslog for centralized log management Serial port configuration and debugging Unified management through onboard AC or cloud AC platforms These capabilities enable efficient commissioning, centralized monitoring, and reduced maintenance workload during long-term operation. More: https://www.ztlxglobal.com/products/

Onboard 5G Multi-Network Router Onboard 5G Router for Railway Onboard Communication Systems High-Performance 5G Connectivity for Rolling Stock The Onboard 5G Router is a robust, high-performance gateway specifically designed for modern railway and transit applications requiring stable, high- bandwidth, and low-latency communication. As part of the ZTLX Onboard Multi- Network Router family, it integrates 5G wireless communication, cybersecurity protection, and centralized remote management into a single intelligent platform, providing a reliable network hub for high-speed trains, metro, and urban transit vehicles. By converging multi-mode wireless connectivity, intelligent routing, edge computing, and comprehensive network services, the router ensures uninterrupted train-to-ground communication, supports onboard Wi-Fi systems, and enables data-intensive services such as video-on-demand (VOD), operational management, and monitoring platforms. Designed for High-Speed, Data-Intensive Railway Environments The Onboard 5G Router is purpose-built for mobile railway applications where continuous connectivity, high throughput, and system reliability are critical. Its modular, high-density hardware architecture provides flexibility to meet diverse network and bandwidth requirements, making it suitable for high-speed rail, metro, light rail, and intercity trains. The system is optimized for environments with frequent vibration, power fluctuations, and high mobility.   Key Applications Onboard Wi-Fi Internet Access for passengers and crew Train-to-Ground Communication Networks for real-time operational data High-Bandwidth Video Transmission including onboard VOD services Railway Onboard Network Gateway for intelligent routing and load balancing Operational Monitoring and PHM System Integration for maintenance and control Integrated Railway Onboard Communication Solutions combining routers, switches, and APs Core Features Security and Cyber Protection High-performance integrated firewall Level 3 Information Security Protection Certification Physical isolation of carrier boards to enhance system security High-Speed 5G Connectivity Supports 5G / Wi-Fi / StarLink for multiple communication modes Modular design supporting up to 6 × 5G modules with intelligent link aggregation Download speeds exceeding 700 Mbps, uplink speeds over 100 Mbps Stability for Continuous Operation Dual hardware and software watchdog monitoring for 24/7 operation Customized operating system optimized for high-speed railway conditions Load balancing and intelligent link aggregation to maintain uninterrupted connectivity Intelligent Network Management Web-based management interface for flexible configuration Remote operation and maintenance through ground control platforms Plugin management and integration of third-party software Intelligent routing to optimize network transmission quality More: https://www.ztlxglobal.com/products/

Onboard 4G Multi-Network Router Onboard 4G Router for Railway Onboard Communication Systems The Onboard 4G Router is a high-performance onboard communication gateway designed for railway and urban transit applications requiring stable, secure, and continuous data connectivity. As part of the ZTLX Onboard Multi-Network Router product family, it integrates multi-network access, cybersecurity protection, and centralized remote management into a single onboard platform, purpose-built for demanding mobile environments such as high-speed rail and metro systems. By converging 4G wireless communication, intelligent routing, edge computing, and comprehensive network services, the router functions as a reliable onboard network hub. It ensures stable train-to-ground communication, supports onboard Wi-Fi internet access for passengers, and enables data transmission for onboard infotainment, monitoring, and operational management systems. Designed for High-Speed and Mobile Railway Environments The Onboard 4G Router is engineered specifically for rolling stock applications where continuous connectivity, long-term stability, and system reliability are critical. A modular and high-density hardware architecture allows flexible configuration to meet different network capacity and system integration requirements across various railway projects. The platform is suitable for long-term onboard deployment in high-speed rail, metro, light rail, and intercity train environments, where frequent vibration, power fluctuations, and high mobility are common operational conditions. Key Applications Onboard Wi-Fi Internet Access Systems Train-to-Ground Communication Networks Railway Onboard Network Gateways Onboard Data Transmission for Operation & Maintenance Platforms Integrated Communication Systems for High-Speed Rail and Metro Core Features: 1. Security High-performance firewall Level 3 Information Security Protection Certification Physical isolation of carrier board 2. High-Speed 4G/ Wi-Fi / StarLink Supports up to 9 modules Download speed >700Mbps Uplink speed > 100Mbps 3. Stablize Hardware and software watchdog monitoring, 24/7 opetation. Customized system to adapt to high-speed rail environments. Load balancing, always online. Link aggregation ensures not disconnection 4. Intelligent Supports Web management Supports remote operation and maintenance Supports plugin management Supports intelligent routing More: https://www.ztlxglobal.com/products/

PTC Food Thermometer for Food Temperature Detection, EG-P002 The EG-P002 PTC Food Temperature Sensor is designed for food temperature detection applications, including food thermometers and thermal monitoring during food processing. With a food-grade 304 stainless steel probe and stable sensing performance, this sensor is suitable for environments requiring reliable temperature measurement and material safety compliance. As an OEM manufacturer, we provide custom PTC temperature sensor solutions tailored for integration into food thermometers and temperature control systems. Key Features Food-grade 304 stainless steel probe suitable for food contact environments Wide operating temperature range up to 380°C Stable resistance characteristics for consistent measurement Compact probe size (Ø3.8 mm) for easy insertion into food products Reliable electrical insulation performance Suitable for integration into food thermometers and temperature monitoring devices Typical Applications The EG-P002 is designed for food-related temperature measurement scenarios, including: Food thermometers Food temperature detection during cooking and processing Kitchen appliances requiring temperature monitoring Industrial food processing equipment Temperature control in food preparation systems It is suitable for applications requiring direct or indirect temperature measurement in food environments. Custom PTC Temperature Sensor Solutions As a professional OEM supplier, we provide customization options for food temperature sensing applications: Resistance value and parameter customization Probe length and structure adjustment Cable type, insulation, and connection methods Integration into thermometer devices or control systems High-temperature resistant design optimization We support development from sample evaluation to mass production, ensuring consistent product quality. More: https://www.egn-tech.com/

Wireless Interlinked Photoelectric Fire Alarm with 10-Year Life Lithium Battery, VS02F Wireless Interlinked Photoelectric Smoke Alarm with 10-Year Sealed Battery EN 14604 Certified VS02F The VS02F Wireless Interlinked Smoke Alarm is a photoelectric fire detection device designed for residential and commercial safety systems, featuring 433MHz wireless interconnection and a 10-year sealed lithium battery. Compliant with EN 14604, CE, and UKCA standards, this model enables synchronized alarm triggering across multiple units, improving response time and overall fire safety coverage. As an experienced OEM manufacturer, we support private-label smoke alarm solutions with customization options for branding, packaging, and system integration. Certification & Compliance EN 14604 Certified (European smoke alarm standard) CE & UKCA compliant for EU and UK markets RoHS compliant (environmental safety) Declaration of Conformity available upon request Designed for legal sale and installation in European residential and commercial applications. Detection Technology The VS02F uses photoelectric smoke detection technology, which is highly effective in detecting smoldering fires and reducing false alarms caused by cooking smoke or dust compared to ionization-based alarms. This makes it suitable for living spaces, bedrooms, hallways, and enclosed environments where stability and reliability are critical. Wireless Interconnection Function The built-in 433MHz RF module allows up to 30 smoke alarms to be wirelessly interconnected. When one unit detects smoke, all interconnected units sound simultaneously Expands fire detection coverage across multi-room or multi-floor buildings No wiring required, simplifying installation and retrofit projects This feature is particularly valuable for: Residential buildings Hotels and rental properties Multi-room safety systems Key Features Wireless interlinked alarm system (up to 30 units) 10-year sealed lithium battery for maintenance-free operation Fast response to smoldering fire conditions Low standby current for extended battery life High sound output (>85dB) for clear alerting Built-in low battery warning and self-check functionality Stable performance with reduced false alarm rate Typical Applications The VS02F is suitable for a wide range of fire safety scenarios: Residential homes and apartments Hotels and hospitality buildings Offices and commercial properties Rental housing and property management projects Multi-room or multi-floor fire alarm systems It is ideal for projects requiring wireless interconnection without complex wiring. More: https://www.egn-tech.com/

This 3-burner gas cooktop combines powerful cooking performance with premium modern design. It features a patented burner system and patented cast-iron pan supports—both independently developed by our factory for superior efficiency, stability, and durability. The surface is crafted with matte tempered glass, accented by a glossy front glass panel for an elevated, sophisticated look. With precise knobs, multi-level flame control, and easy-clean materials, this cooktop delivers a seamless, reliable cooking experience for any modern kitchen.   Features & Advantages 1. Patented Burners for Superior Efficiency 2. Patented Grates for Enhanced Stability 3. Matte Glass Surface with Glossy Front Accent 4. Three-Burner Layout for Maximum Cooking Capacity 5. Precise Control Knobs 6. Easy-Clean Tempered Glass Design More information: https://www.kingbrightco.com/

The double concave lenses with the negative focal length, these lenses are used in Beam Expanders, optics image, laser system and so on. Sunday — Bi Concave Lens Specifications Structure: Bi Concave Lens Material: Optical glass, UVFS, Germanium, Silicon, CaF2, MgF2, ZnSe ZnS, Sapphire Diameters Available: 0.5mm to 600mm Diameter Tolerance: +0.00/-0.01mm or customer design Surface Quality: 10-5 Surface Irregularity: λ/10 PV @632.8nm or customer design Thickness tolerance: +0/-0.01mm Clear Aperture: >90% of Diameter Chamfer: 0.05-0.5mmx45degree Centeration: <10 arcsec Coating: Single Mag2, Multiple Layers AR Coating A: 350-650nm B: 650-1050nm C: 1050-1585nm D: Customer Design

Achromatic Doublet Lens Achromatic lenses are cemented with two lenses mainly used to reduced values of spherical aberration, coma and chromatic aberration. Sunday offer positive achromatic lenses and negative achromatic lens with coatings Case Study Axial and vertical color difference Axial chromatic aberration arises from the difference in refractive index of the same material for different wavelengths of light, resulting in varying optical focal degrees. While lateral chromatic aberration is caused by the different magnification ratios of the same material for different wavelengths of light. In essence, all of this is due to the different refractive indices of the same material for different wavelengths of light. The function of the double-coated lens 1. The core method for eliminating aberrations 2. The key design for correcting color differences 3. An important way to optimize the optical system learn more

Spherical Lenses Manufacturer - Sunday Optics Changchun Sunday Optics Co., ltd manufactures Hundreds of thousands of Spherical lens every year for Thermal image, Measuring equipment, Telescope, Camera and so on. We can make customized . Contact us, we will offer you best plan. Spherical lenses are optical lenses with one or more curved surfaces designed to converge or diverge light, alter its propagation path, and control wavefront curvature. They are fundamental optical components in a wide range of optical systems and are widely used in medical imaging, laser optics, security monitoring, the automotive industry, defense, aerospace, and other high- technology applications. Sunday Optics offers a full range of customized spherical lenses, including plano-convex, plano-concave, bi-convex, bi-concave, meniscus, and achromatic lenses, manufactured to your exact specifications. We also provide tailored optical coatings to meet specific performance, durability, and environmental requirements.