NEW Arista QSFP-100G-ERL4 100GBASE-ERL4 30-40km SMF Transceiver QSFP28

The Arista QSFP-100G-ERL4 is a QSFP28 100GBASE-ERL4 transceiver for long single-mode links. It carries four 25G lanes on the LAN-WDM wavelengths of 1295.56, 1300.05, 1304.58 and 1309.14nm over duplex single-mode fiber with an LC connector. Arista rates it for 30km without FEC and 40km when FEC is enabled on the host port.

Arista lists the ERL4 as interoperable with IEEE 100GBASE-ER4 optics at up to 30km, which helps when the far end of a campus or metro link uses a different vendor's ER4 module. Because the receiver is built for long spans, Arista notes that shorter links need optical attenuation to protect it. For links up to 10km, the QSFP-100G-LR4 10km transceiver is the usual choice, and for runs up to 2km the QSFP-100G-LRL4 2km transceiver also uses duplex LC single-mode fiber.

Arista specifies a maximum power draw of 4.5W, a per-lane transmit power of -2.9 to +4.5 dBm and a per-lane receive range of -16.9 to -4.9 dBm for the 30km rating. Digital optical monitoring (DOM) reports temperature, supply voltage, laser bias and optical power for each lane. The module fits Arista QSFP28 100G ports, including those on 7280R and 7500R platforms.

This QSFP-100G-ERL4 transceiver is new and covered by the NetworkTigers one-year warranty. The original packaging may have been opened to inspect the contents.