An optical line termination (OLT), also called an optical line terminal, is a device which serves as the service provider endpoint of a. It provides two main functions: 1. to perform conversion between the electrical signals used by the service provider's equipment and the signals used by the passive optical network.
[pdf] Coherent FTL4C1Q 40GBASE-LR4 QSFP+ Optical Transceivers are designed for use in 40Gb Ethernet links over single-mode fiber (SMF). These FTL4C1Q modules feature power dissipation of <3. 3V power supply, and an uncooled 4x10Gb/s CWDM transmitter. They are compliant with the QSFP+ MSA1,2 and are compatible with IEEE 802. 3ba 40GBASE-SR4 and breakout to four 10GBASE-SR. QSFP+ Optical Transceiver Manufacturer II-VI Finisar Manufacturer Part Number FTL410QE4N. Coherent optical module refers to a typically hot-pluggable coherent optical transceiver that uses coherent modulation (BPSK / QPSK / QAM) rather than amplitude modulation (RZ/ NRZ / PAM4) and is typically used in high-bandwidth data communications applications.
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