SFP series single mode transceiver is small form factor pluggable module for dual fiber serial optical data communications such as IEEE 802.3ae 10GBASE-LR/LW. It is with the SFP+ 20-pin connector to allow hot plug capability. Digital d iagnostic functions are available via an I2C. This module is designed for single mode fiber and op erates at a nominal wavelength of 1310nm. The transmitter section uses a 1310nm multiple q uantum well DFB laser and is a class 1 laser compliant according to International Safety Standard IEC-60825. The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.