Juniper QDD-2X100G-LR4 (740-079871) Compatible QSFP28-DD

# Key Highlights
  • Type: 2x100GBASE-LR4 QSFP28-DD
  • Compatibility: Juniper Compatible
  • Tx/Rx Wavelength: 2x(1295.56, 1300.05, 1304.58, 1309.14nm)
  • Laser: DFB LAN WDM
  • Modulation: NRZ
  • Fiber Type: Single-Mode Fiber (SMF)
  • Connectors: 2x Duplex CS
  • Optical Budget: 6.3dB
  • Max. Distance: 10 km
  • Data Rate: 2×103.125 Gbps
  • DDM/DOM: Supported
  • FEC Forward Error Correction: Host FEC Supported
  • Power Consumption: ≤8W
  • Temperature: Standard 0° – 70°C
# Pricing & Ordering
SKU: 2x100G-QDD-10-JU


Standard recommended retail price without VAT.

Lead Time: Below 1 Week in EU Countries
# Quality Assurance

Because of our comprehensive Testing Program, we are confident on quality of our products. Such approach empower us to cover all our products with:

# Key Technical Data
Media Type:

Single-Mode Fiber (SMF.)


2x Duplex CS

Supported Data Rate:

2×103.125 Gbps

Supported Applications:

2x100G Ethernet (206.25 Gbps)


NRZ (Non-return-to-zero)



CDR (Clock and Data Recovery) chip


Minimum Optical Budget:

6.3 dB

Maximum Distance:


TX Wavelength:

2x LAN WDM (1295.56, 1300.05, 1304.58, 1309.14 nm)

Tx Wavelength Bandwidth:

2×4 LAN WDM Separated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm)

Transmitter Type:

DFB Laser

RX Wavelength:

2x LAN WDM (1295.56, 1300.05, 1304.58, 1309.14 nm)

Rx Wavelength Bandwidth:

2×4 LAN WDM Separated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm)

Receiver Type:

PIN photodiode

Average Launch Power (Min) Each Lane:

-4.3 dBm

Average Launch Power (Max) Each Lane:

4.5 dBm

Extinction Ratio (Min):

4 dB

Average Receiver Sensitivity (Min) Each Lane:

-10.6 dBm

Average Receiver Sensitivity (Max) Each Lane:

4.5 dBm

Receiver Overload:

5.5 dBm

Temperature Range:

Standard 0°-70°C

Storage Temperature:

-40° to 85°C

Relative Humidity:

0 to 85%

Power Consumption:





CMIS V4.0, IEEE 802.3ba 100GBASE-LR4, IEEE 802.3bm, QSFP-DD MSA, RoHS-6, CE, SFF-8665

# Product Documentation
Juniper Compatible QDD-2X100G-LR4 Datasheet - 2x100G-QDD-10

Our version of Juniper Compatible QDD-2X100G-LR4 Datasheet is based on our product 2x100G-QDD-10. When You will order it will be encoded to be compatible with Juniper equipment and it will be labeled with part number: 2x100G-QDD-10-JU, where JU means Juniper Compatible. Above You can download datasheet of our 2x100G-QDD-10 product.

# Product Description

QDD-2X100G-LR4 (740-079871) is Juniper Compatible 2x100GBASE-LR4 QSFP28-DD (Quad Small Form-Factor Pluggable Double Density) Transceiver designed for operation over single-mode optical fiber. 2x100G LR4 has a QSFP-DD form factor which supports eight electrical interface lanes which can operate in 25G NRZ encoding mode resulting in 200G (8x25G) data rate. Technically 2x100GBASE-LR4 QSFP28-DD modules consists of two 100G transceivers in one housing which can provide great flexibility for operators in their migration path towards QSFP-DD gear and 400G PAM4 infrastructure and help to make necessary interconnections with high density legacy 100GBASE-LR4 QSFP28 interfaces which use NRZ encoding. Module has a minimum guaranteed optical budget of 6.3 dB, which in most cases is enough to reach 10 km over OS2 single mode optical fiber. However, distance is just an indicative parameter calculated for comfort of identification. Eventually we calculate distance taking in account minimal optical budget and average attenuation of optical cabling in industry. The 2x100G LR4 uses 8x25Gb/s DFB LAN WDM (1295.56, 1300.05, 1304.58, 1309.14nm) laser transmitters and 8x25Gb/s PIN Photo Detectors. Module supports DDM/DOM optical diagnostics, which provide diagnostic information about the present operating conditions. Juniper compatible QDD-2X100G-LR4 (740-079871) operates in standard 0°-70°C temperature range and has a double duplex CS connector. CS connectors have been standardized by CS Consortium and require special CS patch cables. 2x100GBASE-LR4 QSFP-DD supports 2×103.125 Gbps data rate and such applications as 2x100G Ethernet (206.25 Gbps). Juniper compatible QDD-2X100G-LR4 (740-079871) optical transceiver is a multi-purpose module which can be used in various scenarios in today’s networking environment. Most popular applications are Telecom Metro, Telecom Core, Wireless Backhaul and Data Center Interconnect (DCI).

To ensure compatibility we have tested our compatible version of Juniper QDD-2X100G-LR4 (740-079871) Transceiver in latest platforms of Juniper networking equipment, which allows us to encode transceiver EEPROM memory to be compatible and work seamlessly with Juniper platforms. Transceivers is also CE/RoHS certified, compliant with product safety standards and is fully compliant to QSFP-DD Multi Source Agreement (MSA). IEEE 802.3ba 100GBASE-LR4 and IEEE 802.3bm standard. Feel free to Contact us – We will gladly learn about your needs and provide you with the best solution!