In today's data center communications, individual streams routinely reach 10 Gbps speeds, and it is necessary to have 40GbE links to provide better performance. Such high-performance, high-density 40 Gbps network devices such as Juniper Networks switches, when equipped with LX4 optics, seamlessly enable this transition. This article introduces Juniper QSFP+ LX4 transceiver in details.
The Rise of 40 Gbps QSFP+ LX4 Technology
Short-reach (SR) and extended short reach (eSR4) transceivers for 40 Gbps connectivity in a quad small form-factor pluggable transceiver (QSFP) mode use independent transmit and receive sections, each with four parallel fiber strands. For a duplex 40 Gbps connection, eight fiber strands are required, while QSFP SR4 uses Multipath Optical (MPO) 12-fiber connectors (MPO-12F). This IEEE standard technology must reach up to 400m using OM4 and provide future support for 100 Gbps speeds using the same cabling infrastructure. However, this technology requires more fiber strands than can be found in today’s 10 Gbps infrastructures, which means that data centers require a cabling upgrade. Juniper offers an innovative alternative: a 40 Gbps QSFP plus (QSFP+) LX4 technology that allows for zero-cost fiber migration by reusing the current 10 Gbps multi-mode fiber optic (MMF) cabling plant for 40 Gbps connectivity.
Introduction to Juniper 40 Gbps QSFP+ LX4
Juniper offers a new 40 Gbps Ethernet optical technology called LX4 and provides a QSFP+ 40GbE optical module that uses the same infrastructure as 10GbE. The LX4 technology represents a new way to deploy 40GbE that meets all of the performance criteria of today’s data centers by providing 40GbE on two MMF strands and duplex LC connectors. The Juniper QSFP+ LX4 transceiver addresses the challenges of fiber infrastructure by providing the ability to transmit full-duplex 40 Gbps traffic over one duplex MMF cable with LC connectors. In other words, the Juniper QSFP+ LX4 transceiver, a short-reach optical transceiver that delivers 40 Gbps over duplex OM3 or OM4 MMF, allows 40 Gbps connectivity to connect directly to the 10 Gbps fiber and fiber trunk.
The Juniper QSFP+ LX4 transceiver has four 10 Gbps channels, each of which can transmit and receive simultaneously on four wavelengths over a MMF strand. The result is an aggregated duplex 40 Gbps link over a duplex of two MMF strands. Using duplex LC connectors, QSFP+ LX4 connections can reach 100 meters on OM3 MMF or 150 meters on OM4 MMF.
About Fiberstore’s 40G QSFP+ LX4 Transceivers
As a professional manufacturer and supplier for optical fiber products as well as third-party, Fiberstore’s 40G QSFP+ LX4 transceivers support highly reliable operations in data center networks, and are optimized for various switching platforms by offering the perfect compatibility with brands, such as Juniper. The Fiberstore compatible Juniper 40G QSFP+ LX4 transceiver can save you a lot of budget and provides the same functions just as Juniper 40G QSFP+ LX4 transceiver. And there is no need to worry about the quality or performance of 40G QSFP+ LX4 transceiver offered by Fiberstore.
Features of Fiberstore’s compatible Juniper 40G QSFP+ LX4 Transceivers:
- QSFP+ MSA compliant
- EEE 802.3ba Electrical Interface
- LC duplex connector
- Up to 150m over duplex OM3 or OM4 fiber, 500m over duplex single-mode fiber
- Compliance with Restriction on Hazardous Substances (RoHS) directive
All Fiberstore’s 40G QSFP+ LX4 transceivers, including the compatible ones mentioned above, provide high density and ensure high quality. Besides, Fiberstore’s compatible Juniper 10G SFP/XFP transceivers and 1000G SFP transceivers, like EX-SFP-10GE-LR, XFP-10G-E-OC192-IR2, JX-SFP-1000BASE-T are also available. For more information about Fibersotre 100% compatible transceivers with Juniper, please visit Fiberstore.