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by Juniper
Product Line: Juniper QFX10000 Series
Product Type: Transceiver
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Product Description

The JNP-QSFP-100G-CWDM is a QSFP28 100GBASE-CWDM4 optical transceiver designed for 100 Gigabit Ethernet connections, capable of transmitting data up to 2 km over single-mode fiber (SMF) with a core/cladding size of 9/125 µm. It features a duplex LC connector and complies with 100G CWDM4 MSA technical specifications, including a signaling rate of 25.78125 ± 100 ppm per lane across four wavelength ranges from 1264.5 nm to 1337.5 nm. The transceiver operates within a temperature range of 0° C to 70° C, supports an operating altitude up to 10,000 ft (3,048 m), and has a maximum power consumption of 3.5 W.

FAQs for the JNP-QSFP-100G-CWDM

  • What is the maximum transmission distance of the QSFP28 100GBASE-CWDM4 Optics?
    The QSFP28 100GBASE-CWDM4 Optics can transmit data up to 2 km over single-mode fiber (SMF).
  • How does the 100G CWDM4 MSA Technical Specifications define the signaling rate for each lane?
    The signaling rate for each lane is specified as 25.78125 ± 100 ppm.
  • What type of connector is used with the QSFP28 transceiver?
    The QSFP28 transceiver uses a Duplex LC connector.
  • What are the operating and storage temperature ranges for the QSFP28 100GBASE-CWDM4 Optics?
    Operating temperature ranges from 0° C to 70° C, and storage temperature ranges from -40° C to 85° C.
  • What are the transmitter wavelengths range for the QSFP28 100GBASE-CWDM4 optics?
    Transmitter wavelengths range from 1264.5 nm to 1337.5 nm across four lanes.
  • What is the maximum power consumption of the QSFP28 100GBASE-CWDM4 Optics?
    The maximum power consumption is 3.5 W.
  • Are the QSFP28 100GBASE-CWDM4 Optics compliant with any MSA specifications?
    Yes, they are compliant with the 100G CWDM4 MSA Technical Specifications.
  • What is the core size and cladding specification for the cable used with QSFP28 100GBASE-CWDM4 Optics?
    The cable has a core size of 9 µm and a cladding of 125 µm.
  • What are the minimum and maximum transmitter output power levels for each lane on the QSFP28 optics?
    The minimum transmitter output power is -6.5 dBm, and the maximum is 2.5 dBm for each lane.
  • What is the operating altitude limit for the QSFP28 100GBASE-CWDM4 Optics?
    The operating altitude limit is up to 10,000 ft (3,048 m).

Product Review

The Juniper JNP-QSFP-100G-CWDM offers 100 Gigabit Ethernet connectivity with a QSFP28 transceiver, supporting up to 2 km transmission over single-mode fiber (SMF), which is beneficial for extended reach in data center interconnects. However, its operating temperature range of 0° C to 70° C may limit deployment in environments with extreme temperature conditions. Additionally, with a maximum power consumption of 3.5 W, it is relatively efficient for its performance class, though careful consideration of thermal management and power budgeting is necessary in dense configurations.


The Juniper JNP-QSFP-100G-CWDM is a high-performance, QSFP28 transceiver designed for 100 Gigabit Ethernet connections. It is engineered to support long-distance transmission up to 2 kilometers over single-mode fiber (SMF), making it suitable for a wide range of networking environments. This transceiver adheres to the 100G CWDM4 MSA Technical Specifications, ensuring compatibility and reliable performance across various networking equipment. At the core of its specifications, the transceiver operates with a signaling rate of 25.78125 ± 100 ppm per lane, utilizing four wavelengths ranging from 1264.5 nm to 1337.5 nm. This wavelength division multiplexing technique allows for efficient data transmission over a single fiber strand, maximizing bandwidth and reducing infrastructure costs. The transceiver features a duplex LC connector, providing a secure and reliable connection to the fiber network. Key performance metrics of the Juniper JNP-QSFP-100G-CWDM include a transmitter output power range of -6.5 dBm to 2.5 dBm per lane, and a receiver input power range of -11.5 dBm to 2.5 dBm per lane. These parameters ensure that the transceiver can maintain optimal performance over the full 2 km transmission distance, even in challenging conditions.
  • MSA compliance ensures broad compatibility with existing networking equipment.
  • Supports a maximum power consumption of 3.5 W, optimizing energy use in data center environments.
  • Operates within a wide temperature range (0° C to 70° C), ensuring reliability in varied operational climates.
The cable type supported by this transceiver is SMF with a core size/cladding of 9/125 µm, standard for long-distance optical transmission. This facilitates the use of existing fiber infrastructure, simplifying upgrades to higher network speeds without the need for extensive cabling changes. In terms of environmental adaptability, the Juniper JNP-QSFP-100G-CWDM is designed to operate effectively up to an altitude of 10,000 feet (3,048 m), ensuring consistent performance in a variety of installation locations. It also boasts a broad storage temperature range from -40° C to 85° C, allowing for flexibility in stocking and deployment strategies. Overall, the Juniper JNP-QSFP-100G-CWDM transceiver is a key component for organizations looking to upgrade their network infrastructure to support higher data rates over longer distances. Its adherence to industry standards, combined with Juniper's reputation for quality, makes it a reliable choice for expanding network capabilities.


Part NumberJuniper JNP-QSFP-100G-CWDM
ModuleQSFP28 100GBASE-CWDM4 Optical Transceiver for up to 2 km over single-mode fiber
Bandwidth100 Gbps Ethernet
Form FactorQSFP28
Connection TypeLC Duplex
Standards ComplianceComplies with MSA SFF-8665 and 100G CWDM4 MSA
Maximum Reach2 kilometers
Lane Data Rate25.78125 Gbps ± 100 ppm per lane
Wavelengths1264.5-1277.5 nm, 1284.5-1297.5 nm, 1304.5-1317.5 nm, 1324.5-1337.5 nm
Min Transmit Power-6.5 dBm per lane
Max Transmit Power2.5 dBm per lane
Min Receive Power-11.5 dBm per lane
Max Receive Power2.5 dBm per lane
Fiber TypeSingle-mode Fiber (SMF)
Fiber Core/Cladding Diameter9/125 µm
Power ConsumptionMaximum 3.5 Watts
Min Operating Temperature0°C
Max Operating Temperature70°C
Min Storage Temperature-40°C
Max Storage Temperature85°C
Operating AltitudeMaximum 10,000 feet (3,048 meters)

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