In today’s telecommunications market, 10Gbps links for individual streams can’t satisfy their requirements for even higher-speed data transmission. Increasing networking applications are generating bandwidth to 40GbE links to ensure better performance. Juniper QSFP+ LX4 transceiver proves itself as an ideal solution for such a case. It expands the existing fiber infrastructure with low capital investment while providing low power, low latency and high density for today’s Data Centers and Storage Area Networks. The following passages will introduce Juniper QSFP+ LX4 transceiver in details.

Short-reach (SR) and extended short reach (eSR4) transceivers for 40Gbps 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 40Gbps duplex connection, eight fiber strands are required, while QSFP SR4 uses Multipath Optical (MPO) 12-fiber connectors (MPO-12F). Take Juniper 40G QSFP-SR4 for example, the Fiberstore compatible QFX-QSFP-40G-SR4 transceiver (figure shown below) enables high-bandwidth 40G optical links over 12-fiber parallel fiber terminated with MPO connectors. And this IEEE standard technology must reach up to 400 m using OM4 and provide future support for 100Gbps 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 40Gbps QSFP plus (QSFP+) LX4 technology that allows for zero-cost fiber migration by reusing the current 10Gbps multi-mode fiber optic (MMF) cabling plant for 40Gbps connectivity.

Juniper offers a new 4Gbps 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 40Gbps traffic over one duplex MMF cable with LC connectors. In other words, the Juniper QSFP+ LX4 transceiver, a short-reach optical transceiver that delivers 40Gbps over duplex OM3 or OM4 MMF, allows 40Gbps connectivity to connect directly to the 10Gbps fiber and fiber trunk.

Existing 10Gbps connections are commonly MMF cables with LC connectors. And Juniper QSFP+ LX4 allows the same cables to be used for direct 10Gbps connections to direct 40Gbps connections, resulting in zero-cost cabling migration. The Juniper QSFP+ LX4 transceiver has four 10Gbps channels, each of which can transmit and receive simultaneously on four wavelengths over a MMF strand. The result is an aggregated 40Gbps duplex 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.

As a professional manufacturer and supplier for optical fiber products, as well as a third-party, Fiberstore compatible Juniper 40G QSFP+ LX4 transceivers support highly reliable operations in data center networks. Besides these high-performance 40G QSFP+ LX4 transceivers, 40G QSFP+ LR4 transceivers are also considered as a cost-effective solution for 40GbE links, and they enjoy the same functions just as Juniper 40G QSFP+ LR4 transceivers. Like the JNP-QSFP-40G-LR4 module, Fiberstore compatible Juniper JNP-QSFP-40G-LR4 enables high-bandwidth 40G optical links with duplex LC connectors and can also be used in a 4x10G module for interoperability with 10GBASE-LR interfaces.

Juniper QSFP+ LX4 transceivers provide 40Gbps connectivity with cost savings and simplicity for data center 40GbE deployments. Fiberstore offers various 40G QSFP+ LX4 transceivers with high quality. Additionally, other Juniper 40G QSFP transceivers are also provided, like the above-mentioned QFX-QSFP-40G-SR4, and JNP-QSFP-40G-LR4, as well as JNP-QSFP-40GE-IR4. You can visit Fiberstore for more information about Fibersotre 100% compatible 40G QSFP transceivers with Juniper.

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