Arista SFP1G-SX-31 Compatible LINK-PP 1G SFP 1310nm 2km DOM Duplex LC MMF Optical Transceiver Module

A: Yes, the LS-MM311G-02C fully complies with SFF-8472 and MSA standards. As long as your host switch or router supports standard SFF-8472 DOM/DDM telemetry via CLI or SNMP, you will be able to read real-time parameters such as RX/TX optical power, temperature, supply voltage, and laser bias current. By admin on 2026-03-03

A: Yes, the LS-MM311G-02C is fully hot-pluggable as per MSA specifications. You can insert or remove the SFP module from powered-on switch ports without rebooting the hardware or affecting the operation of adjacent ports. By admin on 2026-02-12

A: No, both ends of the optical link must operate on the exact same wavelength and optical specifications. The LS-MM311G-02C uses a 1310nm FP transmitter, so the transceiver on the far end must also be a 1310nm multimode SFP module to establish a valid optical connection. By admin on 2025-04-19

A: No optical attenuator is required for short test runs or short patch cables. The receiver overload threshold for this module is -1dBm, while the maximum transmitter power is -3dBm. Because the max TX power (-3dBm) is lower than the receiver overload limit (-1dBm), you can safely connect short patch leads without saturating or damaging the PIN receiver. By admin on 2025-03-15

A: The rated 2km distance is typically achieved on optimized multimode fiber (such as OM3/OM4) using 1310nm window transmission. On legacy OM1 or OM2 fiber, modal bandwidth limits may slightly reduce the maximum effective distance. However, because 1310nm suffers significantly lower chromatic dispersion on MMF than 850nm, it will still achieve substantially longer distances than standard 850nm 550m SFPs. By admin on 2025-03-12