説明
- 12-Port Hybrid Gigabit Switch Fiber & Ethernet：Industrial-grade rackmount network switch with 4× SFP fiber uplinks and 8× RJ45 Ethernet ports, all gigabit speed, perfect for stage lighting, AV systems, broadcast control, and engineering projects.
- 19” Rackmount Metal Chassis Durable Buil：Standard EIA-310 19-inch rackmount design fits perfectly in AV racks, control rooms, and touring flight cases. Heavy-duty metal housing ensures durability in demanding professional environments.
- Locking RJ45 Connectors Secure Networking：All copper ports feature locking heads to prevent accidental unplugging during live events, touring shows, and vibration-prone installations.
- 100m+ Fiber Links Low Latency Performance：SFP ports deliver stable, low-latency transmission over 100 meters, minimizing signal loss—ideal for FOH to stage connections and large venue deployme.
- High-Value Alternative to Leading Network Brands： Delivers comparable gigabit performance and reliability to top-tier enterprise networking solutions, at a more budget-friendly price — designed for AV engineers and system integrators.
- All Gigabit Ports 1000 Mbps Each：Every port supports 1000 Mbps, handling HD video streaming, Dante/AVB audio networks, and real-time lighting control without bottlenecks.
- Broad Compatibility Fiber Modules Cat5e Cat6：SFP slots work with single-mode or multi-mode fiber modules; RJ45 ports support Cat5e/Cat6 cables, offering flexible deployment for any network layout.
Overview
The Pknight CR091L is a professional-grade 12-port hybrid Gigabit switch designed for demanding applications in stage productions, engineering projects, and control rooms. Featuring 4× SFP fiber ports and 8× locking RJ45 Gigabit Ethernet ports, it delivers 1000 Mbps full-duplex speed on all ports for seamless, high-bandwidth networking. Built into a 19-inch 1U rackmount metal chassis, the CR091L combines durability with efficient space utilization. Its locking RJ45 connectors ensure cables stay secure during live events or touring setups, while fiber connectivity extends up to 20 km with ultra-low latency—making it ideal for real-time data transmission without signal loss. The CR091L also supports daisy-chaining via optical ports, allowing multiple units to be linked for extended coverage—up to 20 km per connection—perfect for large-scale venues and distributed network layouts. With pass-through AC power output and a wide voltage input range (AC 90–240V), it integrates smoothly into professional rack systems while offering outstanding reliability and cost-effectiveness compared to leading global brands.
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Q: What fiber modules are included with this device?
A: The CR091L comes pre-installed with LC interface optical modules, ready to use out of the box with no additional purchase required.
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Q: What types of fiber cables does it support?
A: It supports both MM (Multi-Mode) and SM (Single-Mode) fiber cables, allowing you to choose the type that best fits your transmission distance and bandwidth needs.
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Q: Why must the fiber connectors be blue and yellow alternated?
A: To ensure correct optical signal direction and reliable data transmission, the fiber jumpers should be connected with blue to yellow and yellow to blue, forming a complete transmit-and-receive channel.
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Q: Is it difficult to replace the fiber modules?
A: No. Replacing fiber modules is quick and easy—simply remove the old module and insert a new LC module. No tools are required, and the process takes only seconds.
