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EX-SFP-10GE-LR: Juniper 10GBASE-LR SFP+ Optical Transceiver Module

Juniper EX-SFP-10GE-LR Transceiver10GbESFP+
JuniperTransceivers

Also listed as: 740-021309, EX-SFP-10GE-LR-ET, FTLX1471D3BCL-J1

The Juniper EX-SFP-10GE-LR is a 10GBASE-LR SFP+ optical transceiver providing 10 Gigabit Ethernet connectivity up to 10 kilometers over single mode fibre for campus backbones.

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Specifications

Part numberEX-SFP-10GE-LR
BrandJuniper
TypeTransceivers
Other numbers740-021309, EX-SFP-10GE-LR-ET, FTLX1471D3BCL-J1
Statuscurrent
Form factorSFP+
Speed10GbE
Wavelength nm1,310
ConnectorLC duplex
Cable typeSingle Mode Fibre
Max distance m10,000

About the EX-SFP-10GE-LR

The Juniper EX-SFP-10GE-LR transceiver delivers long-reach 10 Gigabit Ethernet connectivity for enterprise campus backbones and metropolitan area network interconnects. Operating at a central wavelength of 1310 nanometers over standard single mode fibre, it bridges distributed wiring closets and data center buildings without requiring intermediate signal repeaters.

Compatibility

Compatible with Juniper EX Series access and aggregation switches including EX3400, EX4300, EX4400, EX4600, EX4650, and EX9200 Series modular chassis. It is recognized natively by Junos OS and supports digital optical monitoring for tracking transmit and receive optical telemetry in real time.

How to identify a genuine unit

Housed in an SFP+ form factor metal enclosure featuring a blue extraction latch bail that designates longwave 1310nm single mode optics. The manufacturer label shows part designation EX-SFP-10GE-LR, assembly part number 740-021309, serial number, and regulatory certifications.

Buying used

Inspect optical ferrule surfaces for oil contamination or dust particles using a fiber inspection probe. Test the optic in a live Junos switch to ensure clean link establishment at 10.3125Gbps and verify that optical receiver power levels match calibrated vendor thresholds.

Fits these models

Works together

How the Juniper EX-SFP-10GE-LR connects to servers, storage and the network: 3 ways, with the hardware on each path.

iSCSI and NVMe/TCP over EthernetFile storage (NFS and SMB)Hyperconverged cluster

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server

Switches

Storage

iSCSI and NVMe/TCP over Ethernet: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server

Switches

Storage

File storage (NFS and SMB): how it fits together

Hyperconverged cluster

Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.

HCI nodes

Adapters for the server

Switches

Hyperconverged cluster: how it fits together

Plan and size it

Check compatibility with Juniper

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the Juniper EX-SFP-10GE-LR.

FAQ

What is the maximum link distance of EX-SFP-10GE-LR?

It supports links up to 10 kilometers on standard single mode optical fibre.

What connector interface does EX-SFP-10GE-LR use?

It utilizes an industry standard LC duplex optical connector.

Buying or selling EX-SFP-10GE-LR?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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