Custom 100GBASE-SR4 QSFP28 Optical Transceiver

Product Description

The 100GBASE-SR4 QSFP28 module provides high-density 100Gbps throughput for short-reach routing architectures. It operates at an 850nm wavelength using a VCSEL array and PIN photodetectors. WolonFiber offers custom EEPROM flashing to match specific OEM switch requirements. For deployments exceeding standard distances or facing extreme outdoor temperatures, we manufacture specific eSR4 and Industrial-grade versions to maintain zero-packet-loss performance without upgrading to single-mode infrastructure.

Key Features

• 4x25G Breakout Support: Natively supports splitting the 100G port into four independent 25GBASE-SR links via MPO-to-4xLC breakout cables.

• Low Power Draw: Standard commercial versions are thermally optimized to keep power consumption strictly under 2.0W.

• Digital Diagnostics: Integrated I2C interface provides real-time DDM/DOM data for voltage, temperature, and optical power monitoring.

Application Scenarios

• High-density Spine-Leaf interconnects in enterprise data centers.

• Harsh outdoor Edge computing sites requiring Industrial-grade (-40°C to 85°C) optical transceivers.

Technical Specifications

Engineering FAQs

• Q: Can this 100gbase-sr4 module interface with a 40G SR4 port?
  A: No. While the physical MPO connector is the same, the QSFP28 module runs at 4x25G electrical signaling. It requires a 100G-capable host slot.

• Q: What MPO polarity is required for this 100g qsfp28 sr4 module?
  A: You must use a Type-B (cross-over) MTP/MPO-12 female-to-female patch cord to ensure the TX lanes properly map to the RX lanes on the opposite end.

• Q: Does the eSR4 300m version require a different switch configuration?
  A: No. The switch recognizes it as a standard SR4 module. The extended 300m reach is achieved purely through enhanced laser output and receiver sensitivity optimized during our manufacturing process.

• Q: Are optical attenuators necessary for back-to-back testing?
  A: For the 100GBASE-SR4, no. The TX power does not exceed the receiver overload threshold, making it safe for short loopback tests.