Arista QSFP-100G-LR4-Arista | 100G QSFP28 Transceiver, Single-Mode, 10km, LC

Q: What is the maximum transmission distance for the QSFP-100G-LR4?
A: The QSFP-100G-LR4 supports transmission distances up to 10km over duplex single-mode fiber. With Forward Error Correction (FEC) enabled on Arista switches, links beyond 10km may be achievable depending on fiber quality and system configuration.

Q: Is this transceiver compatible with non-Arista equipment?
A: Yes, the QSFP-100G-LR4 is IEEE 802.3ba 100GBASE-LR4 compliant and follows the QSFP28 MSA standard, enabling optical interoperability with other vendor equipment that supports the same 100GBASE-LR4 standard. However, digital compatibility (EEPROM encoding) is optimized for Arista platforms.

Q: What type of fiber cable is required for this transceiver?
A: This transceiver requires duplex single-mode fiber (SMF) cable, typically OS2 or G.652 specification, with LC duplex connectors. It operates using four LAN WDM wavelengths around 1310nm that are multiplexed over the fiber pair.

Q: Does this module support digital diagnostics monitoring?
A: Yes, the QSFP-100G-LR4 includes DOM/DDM (Digital Optical Monitoring/Digital Diagnostics Monitoring) functionality, allowing real-time monitoring of parameters such as optical transmit/receive power, temperature, bias current, and supply voltage via I2C interface.

Q: Can the QSFP-100G-LR4 be used in data center and campus environments?
A: Absolutely. This transceiver is designed for various 100GbE applications including data center interconnection, campus core and distribution layers, metropolitan networks, and high-performance computing environments where medium-reach connectivity up to 10km is required.