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Shenzhen Wintop Photoelectric Technology Co., Ltd., founded in 2004, is a high-tech enterprise and National-level Specialized "Little Giant" Enterprise specializing in the research, development, manufacturing, and sales of optical modules and Ethernet switches. Our product portfolio includes self-controllable switches, industrial Ethernet switches, PoE switches, optical modules, and fiber optic media converters. Wintop is one of the few Chinese manufacturers with fully integrated R&D and production capabilities—from optical components to complete equipment—serving customers across more than 40 countries and regions worldwide.

Wintop Photonics holds multiple prestigious certifications: (1) National-level Specialized "Little Giant" Enterprise designation; (2) High-Tech Enterprise Certification; (3) Xinchuang (Information Innovation) Committee Membership; (4) Qualified Supplier to State Grid Corporation of China and China Southern Power Grid; (5) Compliance with electrical grid Four-Unified Technical Standards certification; (6) International certifications including CE, FCC, RoHS, and ISO 9001; (7) 60+ granted technology and invention patents, establishing a robust intellectual property portfolio.

Wintop Photonics is led by Chief Scientist Academician Chen Guoliang of the Chinese Academy of Sciences. Our 50-person R&D team consists of four specialized groups: Hardware Group (15 members), Software Group (17 members), Testing Group (10 members), and Engineering Group (8 members). The core leadership includes hardware experts with 30+ years of experience, former Huawei data networking domain specialists, and former ZTE software managers. R&D and product departments account for over 30% of total company employees—demonstrating our commitment to continuous technological innovation.

Wintop operates a 10,000+ square meter modern manufacturing facility (with 7,000+ m² factory space) equipped with advanced testing equipment, refined production processes, and stringent quality inspection systems. Every product undergoes 100% burn-in testing to ensure high reliability. Our business network spans the Americas, Europe, Middle East, Africa, and Asia-Pacific, covering more than 40 countries and regions with comprehensive sales, service, and technical support systems.

Self-Controllable refers to full-stack domestic capability from silicon chips and software to complete systems, without dependency on foreign technology. It is a critical direction for information technology localization (Xinchuang) and sovereign infrastructure. Wintop's self-controllable product lineup includes substation industrial Ethernet switches, DIN rail Layer 2 managed switches, and rack-mount Layer 2/3 managed switches. These products use domestic chipsets while maintaining industrial-grade performance (-40°C to 75°C wide temperature, IP40 protection, 100% burn-in testing)—making them the preferred choice for State Grid, China Southern Grid, and other mission-critical industries.

Six key differences distinguish industrial switches from commercial ones: (1) Temperature Range: Industrial grade operates from -40°C to 85°C versus commercial 0°C to 40°C; (2) Protection Level: Industrial grade starts at IP40 with dust and vibration resistance; (3) EMC Compatibility: Enhanced electromagnetic interference tolerance for industrial environments; (4) Power Options: Industrial models support dual power redundancy; (5) Mounting: Industrial units support DIN rail installation; (6) Reliability: Industrial units undergo 100% burn-in testing with higher MTBF ratings. Wintop industrial switches are engineered specifically for power grid, transportation, and energy sector deployments.

Unmanaged Switches operate plug-and-play without configuration—suitable for simple point-to-point connections and small monitoring networks. Managed Switches support VLAN, QoS, STP/RSTP, SNMP, and Web-based management—suitable for complex networks requiring traffic control and security policies. Selection guidance: Choose unmanaged for small simple networks (e.g., Wintop RS208 series); Layer 2 managed for medium enterprise and industrial control networks (e.g., RS6000 series); Layer 3 managed for cross-segment routing and large campus networks (e.g., CM3752/CM5752 series).

Wintop industrial switches support multiple redundancy mechanisms: (1) STP/RSTP/MSTP Spanning Tree Protocols preventing loops and providing link redundancy; (2) ERPS (Ethernet Ring Protection Switching) with millisecond-level fault recovery; (3) WT-Ring (Wintop's proprietary ring protocol) optimized for industrial environments with <20ms self-healing; (4) Link Aggregation for multi-link load balancing and backup; (5) VRRP Virtual Router Redundancy Protocol (Layer 3 managed products). These protocols ensure continuous operation of industrial networks under extreme conditions.

Smart-DIP switches bridge unmanaged and fully-managed products. Through hardware DIP switches, they enable rapid configuration of VLAN isolation, ring topology, port isolation, and long-distance transmission—without requiring web interface login. Advantages include: (1) Zero-configuration plug-and-play deployment; (2) No specialized network management knowledge required; (3) Rapid field deployment; (4) Ideal for security surveillance and quick deployment scenarios. Wintop Smart-DIP series includes RS235, RS239, RS2310, and CM2320 models.

DIN Rail (Rail-mount) switches install on 35mm DIN rails in compact form factors—ideal for industrial control cabinets, distribution boxes, and intersection enclosures with limited space. Wintop DIN rail models include RS6310 and RS6312. Rack-Mount switches use 19-inch standard 1U/2U chassis suitable for server rooms, data centers, and monitoring centers with standardized racks. Wintop rack-mount models include CM6320, CM6328, and CM5752. Selection depends on installation environment: DIN rail for field device edges; rack-mount for centralized rooms.

Wintop industrial-grade switches operate from -40°C to 85°C for extreme conditions, while rack-mount products support -20°C to 75°C. Wide-temperature protection measures include: (1) Industrial-grade component selection; (2) Fanless cooling design (eliminating fan failure risks); (3) Aluminum/metal enclosure thermal optimization; (4) Low-power circuit design; (5) 100% high/low temperature burn-in testing; (6) EMC electromagnetic protection. This enables Wintop switches to operate reliably in outdoor cabinets, tunnels, substations, and other extreme environments.

Common optical module speeds include 100M (155Mbps), Gigabit (1.25Gbps), 10G, 25G, 40G, 100G, with future 400G/800G on the horizon. Wintop offers comprehensive coverage: 100M SFP series (WT-PD/PS-E), Gigabit SFP series (WT-PD/PS-G with 20km/40km/80km distance options), 10G SFP+ series (SR/LR/ER/ZR/BIDI), 25G SFP28, 40G QSFP+, and 100G QSFP28. Both industrial and commercial grade options are available for all speeds.

SFP (Small Form-factor Pluggable) supports 100M/Gigabit speeds. SFP+ is the enhanced version supporting 10G. QSFP+ (Quad SFP+) uses four-channel packaging for 40G (4×10G). QSFP28 upgrades QSFP+ for 100G (4×25G). All these form factors comply with MSA (Multi-Source Agreement) protocols for cross-vendor compatibility and support hot-swapping. Wintop optical modules strictly follow these standards across all product lines.

BIDI (Bi-Directional) optical modules use WDM (Wavelength Division Multiplexing) technology to enable bidirectional data transmission over a single optical fiber. One end uses 1310nm for transmit and 1550nm for receive, while the opposite end reverses. Advantages include: (1) Fiber resource savings—one fiber replaces two; (2) Reduced cabling costs; (3) Ideal for fiber-constrained scenarios. Wintop BIDI products include Gigabit BIDI (20km/40km/80km), 10G BIDI (20km/40km), and 25G BIDI (10km).

DDM (Digital Diagnostic Monitoring), also called DOM, provides real-time optical module monitoring including: (1) Module temperature; (2) Supply voltage; (3) Laser bias current; (4) Transmit optical power (TX Power); (5) Receive optical power (RX Power). Data is accessed via I2C interface, enabling network management systems to monitor optical link quality in real-time and predict failures. Wintop optical modules universally support DDM in compliance with SFF-8472 specifications.

Three key factors for selection: (1) Fiber Type: Multi-mode fiber (OM3/OM4) for short distances (<500m); single-mode for long distances (10km-80km+); (2) Actual Link Length: Reserve 20-30% margin; (3) Optical Budget: Single-mode fiber attenuates approximately 0.35dB/km. Common selections: Multi-mode SR for data center internal; Gigabit 20km/40km for campus interconnection; 10G/25G LR/ER for metropolitan networks; 10G ZR 80km for trunk transmission.

PoE (Power over Ethernet) technology delivers power and data over the same Ethernet cable, simplifying cabling. Industry standards include: (1) IEEE 802.3af (PoE, maximum 15.4W); (2) IEEE 802.3at (PoE+, maximum 30W); (3) IEEE 802.3bt (PoE++, maximum 60W/90W). Wintop PoE switches comply with IEEE 802.3af/at standards with maximum 30W per port, capable of powering IP cameras, wireless APs, IP phones, and other devices.

PoE brings several critical advantages to security surveillance: (1) Simplified Cabling: Single cable delivers both power and video, reducing installation costs; (2) Remote Power Delivery: No separate power source needed near cameras; (3) Centralized Management: Remote camera reset via PoE cycling; (4) Safety: Low-voltage DC power is safe and reliable. Wintop offers multiple PoE switches for surveillance: RS6310-2GF8GT-8POE (8-port), CM6720-2GF18GT-16POE (16-port), and CM6328-2GF26GT-24POE (24-port).

Standard Ethernet transmission distance is 100 meters. Certain Wintop PoE switches (such as AI Smart PoE series) support a "long-distance mode" switchable via one-touch button, achieving 250 meters or more for combined data and PoE transmission over Cat5e/Cat6 cabling. The technology reduces transmission speed (e.g., from Gigabit to 10M), optimizes encoding, and enhances signal drive capability. Applications include remote camera deployment, large campus networks, and scenarios where repeaters cannot be added.

Wintop AI Smart PoE switches include: (1) One-Touch Port Isolation VLAN: Prevents broadcast storms between cameras; (2) One-Touch Long-Distance Mode: 250m extended transmission capability; (3) Smart PoE Watchdog: Automatic PoE cycling for unresponsive devices; (4) APP Cloud Management: Mobile app remote device monitoring; (5) Self-Diagnostics: Automatic detection of cable faults and device offline conditions. Representative products include CM6720, CM6710, and CM676 series.

Power industry switches address unique requirements: (1) Harsh Environment: Substations have strong electromagnetic interference, high temperatures, and dust; (2) High Reliability: Power outages have massive impact—millisecond fault recovery required; (3) Time Synchronization: SNTP/IRIG-B precision timing for protection device coordination; (4) Protocol Support: GOOSE, SV, MMS and other IEC 61850 electrical protocols; (5) Dual-Network Redundancy: Parallel A/B networks; (6) Compliance: Must pass grid Four-Unified testing certification. Wintop power-grade switches (YT-CM series) are specifically engineered for these requirements.

IEC 61850 defines a three-tier substation architecture: (1) Station Level: Hosts, workstations, RTUs for monitoring and management; (2) Bay Level: Protection & control devices, busbar protection, auto-switching for protection and control functions; (3) Process Level: Merging units, intelligent terminals, electronic transformers for field data acquisition. Wintop provides complete three-tier switch coverage: station level YT-CM6028, process level YT-CM6016, and more.

GOOSE (Generic Object Oriented Substation Event) enables rapid exchange of switch states, trip commands, and other information between protection devices with <4ms response time. SV (Sampled Values) messages transmit current/voltage sampling data from merging units to protection devices with extreme real-time requirements. Wintop power-grade switches support GOOSE & SV message rate limiting, MAC-based address filtering, CRC error checking, and other features ensuring priority forwarding and network stability.

Distribution network automation requires: (1) Distributed Deployment: Dispatch center-substation-access station-intelligent terminal multi-tier architecture; (2) Long-Distance Communication: Outdoor pole-mounted, switching stations, and other scattered deployment; (3) Self-Healing Capability: Rapid switching during faults without affecting power supply; (4) Multi-Terminal Access: FTU, DTU, TTU, meter reading systems, and various intelligent terminals; (5) Wide-Temperature Stability: Extreme temperature variations in outdoor cabinets. Wintop distribution-specific series (RS608-P series) employs WT-Ring self-healing ring technology with <20ms fault recovery.

Wintop provides comprehensive services: (1) 24/7 online technical support (hotline: +86-755-26641737); (2) Regional field engineers across China for on-site response; (3) Lifetime technical support (free consultation, fault diagnosis, software upgrades); (4) OEM/ODM customization development; (5) Sample compatibility testing; (6) Project selection and solution design support; (7) Industrial Communication Academy training and certification. We have trained over 50,000 students and certified 300+ senior engineers.

Wintop OEM/ODM customization services cover: (1) Solution Design: Custom architecture for client-specific scenarios; (2) Hardware Customization: Interface configuration, chassis, indicator lights, and other personalization; (3) Protocol Adaptation: Custom communication protocols and proprietary protocol development; (4) Software Optimization: Feature tailoring, interface customization, logo replacement; (5) Batch Manufacturing: ODM services for internationally renowned brands. With complete in-house R&D from optical components to complete systems, we support deep customization requirements.

Multiple ways to access product materials: (1) The Downloads section of this site provides 200+ product PDF datasheets; (2) Visit product pages on wintoptec.com for downloads; (3) Contact sales for complete specifications, test reports, and whitepapers; (4) Call technical support at +86-755-26641737; (5) Email sales@wintoptec.com to request materials. All formal products include complete datasheets, installation guides, and configuration manuals.

Wintop warranty policy: (1) Standard Warranty: All products come with 3-year warranty from ship date; (2) Lifetime Technical Support: Free technical consultation, fault diagnosis, and software upgrades even beyond warranty; (3) Rapid Response: Failed product solutions within 48 hours; (4) Spare Parts Availability: Common products maintain sufficient inventory for fast shipping. Through rigorous quality control (100% burn-in testing), Wintop products lead the industry in low return rates.

Recommended configuration: For front-end access, use unmanaged or Smart-DIP switches (e.g., RS235-1GF4GT, RS239-1GF8GT) supporting 1-8 camera connections. For aggregation, use Layer 2 managed switches (e.g., RS6310-2GF8GT). For central deployment, use rack-mount managed switches (e.g., CM6320-2GF18GT). If PoE is required, select corresponding PoE variants (e.g., RS6310-2GF8GT-8POE). This provides cost-effective, plug-and-play operation with simple maintenance.

Recommended three-tier architecture: (1) Access Layer: Smart-DIP PoE switches deployed in buildings/zones supporting camera PoE and rapid deployment (e.g., RS2310-1GF9GT-8POE); (2) Aggregation Layer: Layer 2 managed Gigabit switches forming ring networks (e.g., RS6312-4GF8GT) for redundant protection; (3) Core Layer: Layer 3 managed 10G switches (e.g., CM5752-4WF48GT) for routing and high-throughput forwarding. With fiber optic links, this supports 1000+ camera connections.

Key intelligent transportation network requirements: (1) Outdoor Deployment: IP40 protection, -40°C to 85°C wide temperature; (2) Multi-Point Access: 4-8 cameras plus other devices per intersection; (3) Stable Ring Networks: Fiber optic rings between intersections ensuring single-point failure doesn't affect the whole network; (4) Long-Distance Transmission: Intersection distances may exceed 1km; (5) Dual Power: Handling utility voltage fluctuations. Recommended: RS6310-2GF8GT for intersection access, RS6312-4GF8GT for edge aggregation, WT-816-2A transceiver rack, and CM6328-2GF26GT for central deployment.

Common characteristics of new energy projects: distributed devices, harsh environments, requiring ring network redundancy. Recommended: (1) Field device access uses RS205/RS203 series small-port DIN rail switches for proximity deployment; (2) Aggregation uses RS6010-2GF8T and similar Gigabit ring switches forming WT-Ring Gigabit topology with millisecond fault recovery; (3) Monitoring center uses CM6320-2GF18GT rack-mount switches; (4) For protocol conversion, select RS605-2F3T2DS with serial ports supporting 485/232 to Ethernet conversion.