Juniper 100GBASE-LR4 QSFP28 Transceiver

The Juniper 100GBASE-LR4 QSFP28 Transceiver (JNP-QSFP-100G-LR4) is a high-density, single-mode optical module engineered for 100 Gigabit Ethernet transport over standard OS2 single-mode fiber. Leveraging LR4 architecture, the module multiplexes four 25Gbps lanes across four distinct wavelengths in the 1295–1310nm range using coarse wavelength division multiplexing (CWDM4 lane grid), then aggregates them into a single fiber pair via an integrated MUX/DEMUX, delivering a full 100Gbps aggregate data rate. The QSFP28 form factor ensures compatibility with high-density line cards on Juniper QFX Series switches and MX Series routers, enabling operators to maximize port density without sacrificing reach.

Designed for data center interconnect (DCI) and enterprise campus backbone applications, the JNP-QSFP-100G-LR4 supports a maximum reach of 10km over standard G.652 single-mode fiber without the need for external amplification. The module conforms to the IEEE 802.3ba 100GBASE-LR4 standard, ensuring broad interoperability within standards-compliant network environments. An LC duplex fiber interface provides straightforward integration with existing structured cabling plants, and the module operates within standard QSFP28 electrical and thermal envelopes, supporting plug-and-play deployment on compatible Juniper platforms introduced from 2017 onward.

The transceiver supports digital diagnostic monitoring (DDM) per SFF-8636, allowing network operators to interrogate real-time optical parameters—including transmit/receive power, temperature, supply voltage, and laser bias current—directly through Juniper's Junos operating system. This telemetry capability is critical for proactive fault isolation and optical budget validation in production environments. The module carries Class 1 laser safety certification and is RoHS compliant, meeting enterprise procurement and environmental standards for global deployment.

Ideal for

• Data center interconnect (DCI) linking geographically separated Juniper QFX-based leaf-spine fabrics across campus or metro distances up to 10km
• Enterprise campus backbone aggregation connecting building distribution switches to a central MX Series core over existing single-mode fiber runs
• High-density 100G uplink provisioning on QFX5110 or QFX5200 top-of-rack switches connecting to spine or border leaf nodes
• Service provider edge handoff where 100GBASE-LR4 is the standard optical interface for customer-facing or peering ports on MX Series platforms
• Network infrastructure refresh projects migrating 10G aggregation tiers to 100G single-mode optics while reusing installed OS2 fiber plant
• Out-of-band or dedicated storage replication links between data center sites requiring deterministic 100Gbps throughput over dark fiber

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.