The SPM-2101WG series SFP+ LRM is an optical module for transmission at 1310 nm over legacy multimode fiber up to 220 m. It compliant with SFF-8431, SFF-8432, and IEEE 802.3aq 10GBASE-LRM. It is with the SFP+ 20-pin connector to allow hot plug capability. Digital diagnostic functions are available via an I2C. This module is designed for multi-mode fiber and operates at a nominal wavelength of 1310 nm. The transmitter section uses a 1310 nm FP laser and is a Class 1 laser compliant according to International Safety Standard IEC 60825. The receiver section uses an InGaAs linear multimode PIN receiver. Host board designers using an EDC PHY IC should follow the IC manufacturer's recommended setting for interoperating the host board EDC PHY with a linear receiver SFP+ module.