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

The JNP-QSFP-100G-SR4 is a QSFP28 transceiver designed for 100 Gigabit Ethernet connections, capable of transmitting data up to 100 m over parallel multimode fiber (MMF) with a core/cladding size of 50/125 µm and utilizing MPO-12 connectors. It supports a signaling rate of 25.78125 GBd per lane, with a wavelength range of 840 nm to 860 nm, and operates efficiently within a power consumption maximum of 3.5 W. This transceiver maintains operational integrity in environments ranging from 0° C to 70° C and up to 10,000 ft in altitude, ensuring reliability across various installation conditions.

FAQs for the JNP-QSFP-100G-SR4

  • What is the maximum transmission distance for the QSFP28 100GBASE-SR4 Optics over MMF?
    • The maximum transmission distance is 100 meters over parallel multimode fiber (MMF).
  • Can you list the compatible breakout cables for use with this transceiver?
    • Compatible breakout cables include MTP-4LC-M1M, MTP-4LC-M3M, MTP-4LC-M5M, and MTP-4LC-M10M.
  • What type of connector does the QSFP28 transceiver use?
    • The transceiver uses an MPO-12 connector.
  • What are the transmitter wavelengths for the QSFP28 100GBASE-SR4?
    • Transmitter wavelengths range from 840 nm to 860 nm.
  • What is the signaling rate per lane for this transceiver?
    • The signaling rate per lane is 25.78125 GBd +/- 100 ppm.
  • What is the operating temperature range of the QSFP28 100GBASE-SR4 Optics?
    • The operating temperature range is from 0° C to 70° C.
  • What is the power consumption of the QSFP28 100GBASE-SR4?
    • The maximum power consumption is 3.5 Watts.
  • What fiber grade is required for optimal performance with this transceiver?
    • OM3 grade fiber is required for optimal performance.
  • What is the effective modal bandwidth for the QSFP28 100GBASE-SR4 Optics?
    • The effective modal bandwidth is 2000 MHz x km.
  • What are the storage temperature limits for the QSFP28 100GBASE-SR4?
    • The storage temperature ranges from –40° C to 85° C.

Product Review

The Juniper JNP-QSFP-100G-SR4 QSFP28 transceiver supports 100 Gigabit Ethernet over multimode fiber for distances up to 100 meters, making it suitable for high-density, short-reach data center interconnects. Its compatibility with a range of breakout cables (MTP-4LC-M1M to MTP-4LC-M10M) offers flexibility for various network architectures. However, its operational efficiency is restricted by a maximum distance of 70 meters on OM3 fiber, and a power consumption of 3.5W, which could be a consideration for energy-sensitive deployments.


The Juniper JNP-QSFP-100G-SR4 is a QSFP28 100GBASE-SR4 optics module designed for 100 Gigabit Ethernet over parallel multimode fiber (MMF), offering a transmission distance of up to 100 meters. This module supports a data rate of 100 Gbps, aggregated from four lanes each operating at a rate of 25.78125 GBd +/- 100 ppm. It is optimized for high-density applications requiring high-speed data transmission, making it suitable for data centers and enterprise networking environments. The module features an MPO-12 connector and operates over a wavelength range of 840 nm to 860 nm. Each of the four lanes has a minimum transmitter output power of -8.4 dBm and can go up to a maximum of 2.4 dBm. Similarly, the receiver input power ranges from a minimum of -10.3 dBm to a maximum of 2.4 dBm per lane, ensuring reliable data reception under various conditions. For compatibility with different fiber cables, the JNP-QSFP-100G-SR4 supports several breakout cable options, including MTP-4LC-M1M, MTP-4LC-M3M, MTP-4LC-M5M, and MTP-4LC-M10M. These options provide flexibility in connecting to different types of network equipment and facilitate easy integration into existing network infrastructures. The core/cladding size of the fiber is 50/125 µm, with an OM3 fiber grade. This specification, combined with an effective modal bandwidth of 2000 MHz x km, ensures high-performance over distances up to 70 meters. The module's maximum power consumption is 3.5 W, making it an energy-efficient choice for network deployments. Operating and storage temperatures range from 0° C to 70° C and -40° C to 85° C, respectively. The JNP-QSFP-100G-SR4 can operate at altitudes of up to 10,000 ft (3,048 m) and maintains performance reliability in environments with 5 to 90% non-condensing operating humidity and 5 to 95% non-condensing non-operating humidity. Key specifications include: -
  • Transceiver Type: QSFP28
  • Maximum Transmission Distance: 100 m
  • Maximum Power Consumption: 3.5 W
In summary, the Juniper JNP-QSFP-100G-SR4 QSFP28 module is engineered for high-speed data transmission over multimode fiber. Its support for breakout cables, combined with low power consumption and wide operating temperature and humidity ranges, makes it a versatile and efficient option for upgrading network performance.


Item Number and Maker Juniper JNP-QSFP-100G-SR4
Description QSFP28 100GBASE-SR4 Optics, supports 100 meters transmission via parallel multimode fiber
Network Speed Capability Quad 25 Gigabit Ethernet, Total 100 Gigabit Ethernet
Compatible Breakout Cables MTP-4LC-M1M, MTP-4LC-M3M, MTP-4LC-M5M, MTP-4LC-M10M for break-out configurations
Module Form Factor QSFP28
Physical Connector MPO-12 interface
Per Lane Signaling Speed 25.78125 Gb/s ± 100 ppm
Emission Wavelengths Between 840 nm and 860 nm
Minimum Output Power per Lane –8.4 dBm
Maximum Output Power per Lane 2.4 dBm
Minimum Receiver Sensitivity per Lane –10.3 dBm
Maximum Receiver Sensitivity per Lane 2.4 dBm
Fiber Core and Cladding Diameter 50 µm / 125 µm
Fiber Optic Grade OM3
Modal Bandwidth 2000 MHz·km
Transmission Distance 70 meters
Max Power Draw 3.5 Watts
Minimum Operational Temperature 0° Celsius
Maximum Operational Temperature 70° Celsius
Lowest Storage Temperature –40° Celsius
Highest Storage Temperature 85° Celsius
Operational Altitude Limit Up to 3,048 meters (10,000 feet)
Operating Relative Humidity 5 to 90% (without condensation)
Non-operating Relative Humidity 5 to 95% (without condensation)

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