Techroutes access product optical multiplexer is modular and fixed structure point‐to‐point optical transmission equipment with LCD display and without LCD with DIP Switch, Console, Graphical User Interface and SNMP Management, uses the FPGA chips and easy to upgrade. The Main board provides 4*100M channel Ethernet data and 2 AUX port which is for transmitting other data such as RS232/RS485/RS422, two optical interfaces for optional 1+1 auto protection switch (APS).4 slots of tributary with variant plug‐in modules which included 4xE1 channels module, 4xFXO/FXS module and 2x Nx64K V.35 module. The maximum capacity will be up 4 plug‐in modules which could be combinations with above modules. The high flexibility, performance, is the best solution for voice/data/video services in existed market.