Mini GBIC WDM TX1550nm module - 80KM. Single-Mode. Complies with the IEEE 802.3z Gigabit Ethernet standard. 1 x 1000Mbps TP / LC fiber port. LC connector. PECL differential inputs and outputs. 3.3V single power supply. TTL signal detection indicator. Hot pluggable. The Class 1 laser product complies with EN 60825-1. Operating temperature: 0ºC to 60º C.