The increased deployment of 10 Gigabit Ethernet (GbE) infrastructure, coupled with the growing applications of bandwidth-demanding network services, drives the need for dense 40GbE switching. High-density 40G switches, such as Arista QSFP-40G Universal transceivers, are the available ports enabling the easy 10G to 40G migration. How much do you know about this Arista QSFP-40G Universal transceiver? This text will guide you to delve into this 40G QSFP+ transceiver.

The Arista QSFP-40G Universal transceiver is a pluggable optical transceiver in an industry standard QSFP+ form factor that can operate with both duplex multi-mode fiber (MMF) and single-mode fiber (SMF). It has four channels of 10G multiplexed inside the module, giving an aggregated 40G bandwidth over 2 strands of fibers. It’s called Universal owing to its ability to communicate with both MMF and SMF without the need for any software/hardware changes to the module or any additional hardware in the network. Here is a picture of Arista QSFP-40G Universal transceiver listed on Fiberstore.

The Arista QSFP-40G Universal transceiver uses a duplex LC connector, and operates on a wide range of fiber optic cables, including OM3 and OM4 MMF and SMF, realizing 150m reach on OM3 and OM4, 500m on SMF. It’s defined to the IEEE 40GBASE-LR4 standard, interoperable with QSFP-40G-LR4 and QSFP-40G-LR4L for distances up to 500m, compliant to the QSFP+ MSA SFF-8436 which defines the specification for QSFP optics. When migrating from 10G to 40G, the existing fiber patch cords, panels, trunks and cabling systems can be used without requiring a redesign or expansion of the fiber network, thus avoiding adding cost or complexity to the migration.

Arista QSFP-40G Universal transceiver addresses several challenges met in data center, and it boasts of the following advantages.

Since the existing multi-mode 40GbE solutions need the use of 8 fibers for a 40G link, users have to add additional fibers to increase the number of 40G links with other 40G QSFP+ optics. But by utilizing Arista QSFP-40G Universal transceiver, users increase the number of 40G links by 4X without making any changes to their fiber infrastructure. More specifically, with the Arista QSFP-40G Universal transceiver for the same number of 40G links as 10G links, there is no need to change fiber termination, nor to upgrade patch panels or trunks, but still the network scale and performance are expanded.

Besides, Arista QSFP-40G Universal transceiver is designed for both MMF and SMF, leading to simplified operations. Its interoperability with IEEE 40GBASE-LR4 and 40G-LRL4 allows easy connection to third party routers and switches in existing networks. Take JG661A for example, this HP product is exactly a 40GBASE-LR4 QSFP+ transceiver designed to run over SMF with duplex LC connector.

Additionally, this kind of 40G QSFP+ transceiver supports Digital Optical Monitoring (DOM) for link quality monitoring. DOM provides access to real-time operating parameters of the transceiver through a digital interface. It enables pro-active monitoring of the key parameters of the transceiver, helping network operators to become aware of degrading fiber paths, to detect transceiver problems and to test splicing/patching work remotely and in a non-intrusive way.

Arista QSFP-40G Universal transceiver offers a very cost-effective connectivity solution for data centers to migrate from 10 Gigabits/s to 40Gigabits/s with minimal disruption within existing multi-mode or single-mode infrastructure. As an excellent fiber optics products manufacturer and supplier, as well as a third party, Fiberstore supplies many Arista QSFP-40G-UNIV transceivers which are 100% compatible the original Arista QSFP-40G Universal transceivers. In addition, Fiberstore also offers 40G QSFP+ transceivers compatible with other major brands, including Cisco, Juniper and HP (eg. HP QSFP+). For more information about 40G QSFP+ transceivers, you can visit Fiberstore.

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