Fiber Optic Multiplexer, also commonly referred to as a “mux”, is a device that processes two or more light signals through a single optical fiber, in order to increase the amount of information that can be carried through a network. These signals are often demultiplexed by a demultiplexer, which is contrary to a multiplexer, receives a single input signal and distributes it over several output lines. Multiplexers work by increasing a fiber’s transmission capacity using different techniques and light source technologies. Multiplexing is commonly used in telephone networks, video streaming/processing, digital broadcasting, analog broadcasting, and digital broadcasting. Using a multiplexer also allows data to be sent farther, more securely, and with less electromagnetic and radio frequency interference.
Main Features
To exploit the full bandwidth of fiber, multiplexing combines many signals of various types — video, serial data, network data, control lines — onto one optical fiber. Multiplexers that combine a number of signals electrically are typically called time division multiplexers (TDM); discrete parts of each input signal is assigned a time slot in the outgoing data stream. Moog has a wide range of TDM options that allow multiple electrical channels to be multiplexed onto one or more optical fibers.
A multiplexer works like a switch in a circuit; however, unlike a standard switch, a multiplexer has the capability of making connections to multiple circuits from its single input source. By squeezing more information through the optical network pathway, fiber optic multiplexer saves time and cost. It is possible to split signals by varying the schedule or period of each transmission.
Fiber optic multiplexer technology serves single-mode and multimode optical fibers with multichannel rack mount or standalone units. Multiplexers aren’t only for connecting multiple devices across a network. Multiplexers are also commonly used to distribute data from a SONET core, allowing for the distribution of DS-1, DS-3, and other circuit mode communications to several devices throughout a network. Again, this allows for multiple devices to share an expensive resource.
Used by cellular carriers, Internet service providers, public utilities, and businesses, fiber optic multiplexer technology extends the reach and power of telecommunications technologies. Network management systems allow for system service and maintenance, and provide for security, fault management, and system configuration. With advantages like lower costs and longer life expectancies, current fiber-optical networks are aided by improvements in multiplexing technology, and may provide light speed data transmission well into the future. Multiplexed systems also simplify system upgrades since numbers of channels and channel bandwidth is a function of the electronics rather than the transmission line or components.
Available Types
Following optical multiplexers are available: N x E1 optical multiplexer, PDH Multiplexer with multi fiber ports and multi Ethernet ports, RS232, RS422, RS485, V.35 ETH channels for optional, V.35 RS485 RS422 RS232 E1 fiber modem and PDH chassis. Standard 19 inch rack with dual power supply and mini rack are quite popular.
Fiberstore Technology’s fiber optic multiplexers adopt the advanced optical fiber transmission technology, there has various models and can be customed according to customers’ requirement. Fiberstore offers 12 different models that combine to multiplex virtually any combination of Serial Data, Ethernet, T1/E1, Telephone, 2/4-Wire Analog, Audio, Intercom or Dry Contact. Interfaces can be rs232 converter, RS422 converter or rs485 converter. Fiber optic ports are typical FC, with SC or ST optional. The fiber optic video multiplexers are single mode types and multimode types, used with different kinds of optical fiber lines.
