Laser module
Model 1420C/D bidirectional laser module transmits and receives 1.3-micron signals over one fiber. The module suits endpoints of digital fiber-delivery systems in remote terminals or nodes, or in network interface units. The laser side of the module contains a Fabry-Perot laser chip. Used for LANs, fiber-in-the-loop systems or telecommunications, the module operates between -40 and +85C.
AT&T Microelectronics