25G SFP28 850nm 100m

The SFP28-25G-SR Transceiver is intended for 100m reach service 25.78Gb/s 850nm Multi-mode high-speed communications equipment where low-cost, extraordinary performance and reliability are essential. It consumes low power, operates base on 3.3V DC power supply and is offered in the industrial...

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The low jitter and low bit error rate optical assembly features a DML laser transmitter and PIN/TIA receiver. It utilizes internal clock and data recovery (CDR) units on transmitter and the receiver chains for low jitter compliance. The differential AC coupled Tx and Rx data interfaces are CML compatible. The device is Class I laser safety compliant.

Features

25Gbps serial optical interface
850nm VCSEL transmitter and GaAs PIN PD receiver
Wide operating temperature(0°C~70°C)
Maximum link length of 70m via OM3 multimode Fiber (MMF)
Maximum link length of 100m via OM4 multimode Fiber (MMF)

FAQ

Q: How can I verify the link is healthy and operating at 25G?

A: Most managed switches with SFP28 ports will display the negotiated link speed (e.g., 25G) in their interface status. Additionally, you can utilize the module's Digital Diagnostic Monitoring (DDM or DOM) functions via the switch's CLI or management software to check real-time parameters like temperature, transmit power, and received power, which are excellent indicators of link health.

Q: What are typical use cases inside a data center?

A: Its primary use is for server-to-top-of-rack (ToR) switch connections, providing high bandwidth for applications, virtualization, and storage traffic. It is also commonly used for spine-leaf interconnects within a rack row or for connecting to all-flash storage arrays that require high throughput.

Q: Do I need to configure anything special for it to work?

A: Usually, no. It is a plug-and-play device for most modern switches that support 25G SFP28 interfaces.

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