overview: the wt-om-c04e fiber optic multiplexer is a compact version of the wt-om product line. this multiplexer supports combining up to four e1 channels over single mode or multimode fiber optic links. several optical transmitter options for different fiber cables and wave-lengths are available. this optical line equipment is developed for transmission in access networks, corporate networks, dedicated networks for railway and power companies etc. features: advanced and compact design that performs e1 multiplexing & de-multiplexing and provides a 16.896mbit/s optical interface in a single unit built-in ac/dc or dc/dc converter and supervisory microprocessor digital clock and data recovery for e1 & optical signal provides visible and audible alarm indications loopback controls for diagnostics and troubleshooting order-wire channel for end to end installation and maintenance network manageable with topone nms low power consumption high reliability