Multiplexing continues to be a huge cost saving and easy-to-implement networking solution. You get to choose between 6 different multiplexer solutions to combine multiple channels of Telephone, T1/E1 or 2/4 Wire Analog over single or multimode fiber optic cable.
Application Diagrams

4-28 Ch Telephone, Analog & Data Fiber Optic Multiplexer (Hot Swappable), Model TC8800
Click to enlarge