The transceiver also complies with Telcordia GR-253-CORE, ITU-T G.695, and ITU-T G.957 standards (S-C8S1-1DX and S-C8L1-1DX) for up to 80-km reach (SONET OC-48/SDH STM-16) and the IEEE 802.3-2005 CWDM standard for up to 120-km reach (Gigabit Ethernet and 1 G Fibre Channel). It is compatible with Fast Ethernet, SONET OC-3 and OC-12, and SDH STM-1 and STM-4 standards.

The transceiver integrates the receive and transmit path on one module. On the transmit side, the serial data stream is passed to a laser driver. The laser driver biases and modulates an uncooled direct modulated laser (DML), enabling data transmission over single-mode fiber through an industry-standard LC connector. On the receive side, the optical data stream is recovered from a PIN or avalanche photodetector (APD), sent to a transimpedance amplifier, and then passed to a post amplifier. This module features a hot-pluggable SFI-compliant electrical interface.