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Juniper Networks 740-085351 QSFP-DD 400GBASE-DR4/4X100GBASE-DR SMF 500m MPO-12 connector

Mfr. Part #: 740-085351
Brand: Juniper
Condition: New
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740-085351

Juniper Networks 740-085351 QSFP-DD 400GBASE-DR4/4X100GBASE-DR SMF 500m MPO-12 connector

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overview
specifications
faqs
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overview

740-085351 Overview

Juniper Networks 740-085351 Qsfp-dd 400gbase-dr4/4x100gbase-dr Smf 500m Mpo-12 Connector

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specifications

Specifications

Overview

Condition New
Brand Juniper
Stock In Stock

Specifications

Speed 4 X 100 Gigabit Ethernet, 400 Gigabit Ethernet
Breakout Capable Yes
Form Factor Qsfp-dd
Product Type Optical Transceiver
Connector Mpo-12/apc
Monitoring Available Yes
Digital Optical Monitoring Yes
Standard 400g Dr4 And 100g Dr

Signaling Rate Each Lane

- Host Lane 26.5625 Gbd Pam4 +/-100 Ppm
- Media Lane 53.125 Gbd Pam4 +/-100 Ppm
Transmitter Fibers 8
Transmitter Wavelengths (range) 1304.5 Nm To 1317.5 Nm
Receive Lane Wavelengths (range) 1304.5 Nm To 1317.5 Nm
Transmitter Output Power Each Lane (minimum) -2.9 Dbm
Transmitter Output Power Each Lane (maximum) 4 Dbm
Receiver Input Power Each Lane (minimum) -5.9 Dbm
Receiver Input Power Each Lane (maximum) 4 Dbm
Receiver Sensitivity (oma) Each Lane (maximum) Max (-3.9, Secq -5.3) Dbm
Stressed Receiver Sensitivity (oma) Each Lane (maximum) -1.9 Dbm
Cable Type Smf
Core Size/cladding 9/125 Μm
Distance 500 M
Maximum Power Consumption (w) 12 W
Operating Temperature (range) 0c To 70c
Storage Temperature – 40 C To 85 C

Typical Weight & Dimensions

- Weight 0.2 Kg
- Height 13.5 Mm
- Width 18.35 Mm
- Depth 93.26 Mm
faqs

Frequently Asked Questions

What primary networking applications is the Juniper 740-085351 QSFP-DD module designed to support? +
The 740-085351 is a high-performance QSFP-DD transceiver engineered for high-density data center environments. It is specifically built to support massive bandwidth requirements in core and aggregation layers, providing the necessary throughput for 400G Ethernet links between switches, routers, and high-performance server clusters.
Does the 740-085351 support legacy QSFP28 interfaces or is it strictly for QSFP-DD ports? +
This module utilizes the QSFP-DD (Double Density) form factor, which is physically designed to provide backward compatibility with standard QSFP28 modules in many configurations. However, performance and link speeds are subject to the specific hardware chassis and port capabilities of your Juniper device. Always verify your platform's datasheet to ensure full interoperability.
How does the power consumption of the 740-085351 compare to standard QSFP28 transceivers? +
Because the 740-085351 is designed for significantly higher data throughput, it generally operates at a higher power profile than older QSFP28 modules. Enterprise network administrators must ensure their switch's thermal management and power budget are adequately provisioned to accommodate the increased power draw inherent to high-speed QSFP-DD optics.
Is the 740-085351 compatible with standard single-mode fiber infrastructure? +
The module is designed to integrate seamlessly with existing high-quality single-mode fiber cabling plants. By leveraging advanced optical transmission technologies, it ensures stable and reliable signal integrity over the specified operational distance, making it an ideal choice for connecting switches across medium-to-long reach data center or campus environments.
What level of software configuration is required to initialize the 740-085351 in a Juniper switch? +
Initialization typically requires minimal intervention beyond standard interface provisioning. Once inserted into a compatible QSFP-DD port, the Juniper operating system (Junos OS) will automatically recognize the module. You may need to verify that the port is explicitly configured for the intended speed and link mode to ensure the transceiver initializes correctly.
Can I use the 740-085351 for breakout configurations in a high-density 400G port? +
Breakout capabilities are dependent on the specific switch ASIC and port architecture. While the QSFP-DD form factor supports various lane configurations, you should confirm that your current Junos OS version and specific hardware model support channelization if you intend to split the 400G link into lower-speed connections.
How should the 740-085351 be handled to ensure long-term reliability and prevent optical degradation? +
To maintain optimal performance, keep the optical bores covered with dust plugs whenever a fiber patch cable is not attached. Always clean fiber connectors with professional-grade tools before installation. Avoid touching the optical face or exposing the transceiver to excessive dust, as even microscopic debris can significantly impact signal loss and link stability.
What is the primary indicator on a Juniper switch that the 740-085351 is operating within normal parameters? +
Monitoring the status can be done through the Junos CLI using diagnostic commands to check optical transmit and receive power levels. Healthy operation is confirmed when these values fall within the recommended dBm ranges provided in the hardware documentation. Persistent link errors or excessive CRC rates may indicate a cabling issue or a need for port cleaning.
How can I obtain a formal bulk quote for the 740-085351 from BuyRouterSwitch.com? +
For large volume orders or specific project requirements, we invite you to contact our sales team directly. By providing the SKU and the total number of units needed, our team can offer competitive bulk pricing and confirm current stock availability to streamline your procurement process and keep your deployment schedule on track.
Why should I choose BuyRouterSwitch.com for sourcing Juniper networking hardware like the 740-085351? +
We prioritize providing genuine, high-quality enterprise networking components that meet strict industry standards. When you purchase from BuyRouterSwitch.com, you are accessing a reliable supply chain that understands the importance of hardware authenticity and efficient logistics. We focus on delivering the exact parts your network requires to maintain uptime and performance integrity.
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