Arista QSFP-100G-DR-Arista | 100G Transceiver, Single-Mode, 500m, 1310nm, LC

Q: What is the maximum transmission distance for the QSFP-100G-DR?
A: The QSFP-100G-DR supports up to 500 meters over single-mode fiber (SMF) using duplex LC connectors at 1310nm wavelength. The module has a minimum optical budget of 3dB which enables reliable transmission at this distance.

Q: Is this transceiver compatible with 400G breakout applications?
A: Yes, the QSFP-100G-DR can interoperate with 400GBASE-DR4 transceivers via fiber breakout cables, making it suitable for 4x100G breakout scenarios in data center environments where you need to connect 400G ports to multiple 100G devices.

Q: What switching platforms support the Arista QSFP-100G-DR?
A: The QSFP-100G-DR is compatible with Arista switches featuring QSFP28 100G ports, including Arista 7000 Series, 7500 Series, and other platforms with 100G QSFP28 interfaces. Always refer to the Arista Transceiver and Cable Guide for specific platform compatibility and to verify your switch model supports 100GBASE-DR transceivers.

Q: Does this module support digital diagnostics monitoring?
A: Yes, the QSFP-100G-DR includes DDM/DOM (Digital Diagnostics Monitoring) capabilities, providing real-time access to operating parameters including optical transmit and receive power, temperature, supply voltage, and laser bias current for proactive monitoring and troubleshooting.

Q: What is the difference between 100GBASE-DR and other 100G standards like SR4 or LR4?
A: 100GBASE-DR uses single-lambda PAM4 modulation over duplex single-mode fiber up to 500m, while 100GBASE-SR4 operates over parallel multimode fiber (100m) and 100GBASE-LR4 uses 4-wavelength CWDM over duplex single-mode fiber (10km). The DR standard offers a cost-effective single-mode solution for short data center interconnects without requiring parallel fiber infrastructure.