CL-FOM4104,CL-FOM8104,CL-FOM16104 4E1+4Eth/8E1+4Eth/16E1+4Eth OptiMux. is part of Multi E1 and Fast Ethernet transmission system family, used to build a 155Mb/s optical point-to-point link. Based on an ASIC chip; it performs the transportation of 4/8/16 E1 and a fast Ethernet at full speed. It also provides an order-wire and an auxiliary UART interface for Management. The OptiMux offers a highly integrated solution for the perfect function, stable performance and convenience with low power consumption.