50G QSFP28 PAM4 ER 1310nm 40km

  • Utilizing hot-pluggable QSFP28 packaging
  • Full duplex integrated transceiver module
  • DFB transmitter and PIN receiver
  • Compliant with IEEE 802.3cd, SFF-8636, SFF-8679, and QSFP28 MSA Ethernet standards
  • Maximum power consumption less than 4.0W
  • Built-in Digital Diagnostic Monitoring (DDM)
  • Power supply voltage 3.3V
  • Compliant with RoHS environmental standards (lead-free)
  • Class 1/1M compliant product, meets IEC60825-1 requirements
  • Compliant with Telcordia (Bellcore) GR-468-CORE reliability requirements
  • Meets EMI and ESD requirements

Warranty : 30-Day Free Return, 3-Year Free Replacement, 5-Year Warranty, Lifetime After-sales Technical Support.

Product Model QSFP28-50G-LR Vendor Name Walsun
Form Factor QSFP28 Data Rate 53.2Gbps
Wavelength 1310nm Distance 10km
Connector LC Duplex Cable Type SMF
Transmitter Type DFB Detector Types PIN
TX Power -4~4.2dBm Receiver Sensitivity < -8.8dBm
Power Consumption ≤4.0W Operation Temperature 0~70°C
DDM Support EMC Support
Protocols IEEE 802.3cd, SFF-8636, SFF-8679, QSFP28 MSA, CPRI, eCPRI

Q: What are the main types of 50G QSFP28 optical modules?

A: There are several main types, including 50GBase-SR (multimode short distance), 50GBase-LR4 (single-mode long distance), 50GBase-ER4 (enhanced long distance), 50GBase-CWDM4 (coarse wavelength division multiplexing), and 50GBase-PAM4 (4-level pulse amplitude modulation).

Q: What is the applicable distance range of 50G QSFP28 optical modules?

A: It varies by type. For instance, 50GBase-SR is suitable for multimode fiber with a transmission distance of approximately 100-150 meters. 50GBase-LR can reach up to 10 kilometers over single-mode fiber, while 50GBase-ER can extend up to 40 kilometers. Specific distances depend on the module specifications.

Q: What is the power consumption of 50G QSFP28 optical modules?

A: Generally less than 3.5 watts. Specific power consumption may vary depending on module design and manufacturer, but tends to be low-power to meet energy efficiency requirements in data centers.

Q: What are the interface types of 50G QSFP28 optical modules?

A: Typically, MPO interfaces are used for multimode types, while LC interfaces are used for single-mode types. Specific interface types depend on the design of the optical module.

Q: What are the differences between 50G QSFP28 and QSFP+ optical modules?

A: The main difference lies in data rates, with 50G supporting 50Gbps compared to 40Gbps for QSFP+. Additionally, QSFP28 packaging is smaller and more suitable for high-density applications. QSFP28 also supports more advanced modulation technologies such as PAM4.

Q: What is the PAM4 technology of 50G QSFP28 optical modules?

A: PAM4 technology refers to pulse amplitude modulation with 4 levels, allowing transmission of 4 signal levels per clock cycle, thus achieving higher data rates on a single channel. It is a key technology for achieving 50Gbps speeds.

Q: What are the hot-swappable features of 50G QSFP28 optical modules?

A: Supporting hot-swapping means modules can be replaced without shutting down the system, improving maintenance flexibility and system availability.

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