Multiplexer Knowledge

A multiplexer, sometimes referred to a multiplexor or simply a mux, is an electronic device that selects from several input signals and transmits to one or more output signals, can be considered as a multiple-input, single-output switch.

Wavelength division multiplexing(WDM) is a concept that describes combination of several streams of optical carrier signals (like data/storage/video or voice) on a single physical fiber optic cable by using several different wavelengths

CWDM multiplexer and CWDM Demux are designed to multiplex multiple CWDM channels into one or two fibers. The core of CWDM Module application is the passive MUX DEMUX unit.

In the fiber optic network which uses wavelength division multiplexing (WDM), reconfigurable optical add-drop multiplexer (ROADM) is used to remotely add

In the long-distance optical fiber transmission, the fiber cables have a small effect on the optical signal transmission, the transmission quality of optical fiber transmission system mainly depends on the optical multiplexers’ quality

Before the introduction of CWDM multiplexer, it is necessary to mention the CWDM technology. Originally, the term “coarse wavelength division multiplexing” (CWDM) was fairly generic, and meant a number of different things.

In telecommunications and computer networks, multiplexing (also called muxing) is a technique by which multiple analog message signals or digital data streams are combined into one signal more than a shared medium.

Multiplexing is the technology that is able to combine multiple communication signals together in order for them to traverse an otherwise single signal communication medium simultaneously.

CWDM is a low-cost WDM transmission technology for metro access layer. Principle, CWDM may be the utilization of the optical multiplexer to different wavelengths regarding signals multiplexed with a single optical fiber for transmission

With the introduction from the fiber optic communication industry by the challenges from the growing need for bandwidth and speed requirements.

It’s no surprise that OTN has many similarities to SDH, as many of its characteristics were taken from previous technologies when SDH was defined.

When you need to carve up an expensive resource (such as an active fiber route) into pieces, multiplexing is the way to go.

The STM-n frame structure is best represented as a rectangle of 9 x 270xN. The 9xN first columns are the frame header and the rest of the frame is the inner structure data (including the data, indication bits, stuff bits, pointers and management).

Sopto is a company that has rich experience in producing and developing fiber optic multiplexer systems, and has several successful commercial product lines for video/data multiplexing in Remotely Operated Vehicles (ROVs).

Software-defined Networking (SDN) is an emerging architecture that is dynamic, manageable, cost-effective, and adaptable, making it ideal for the high-bandwidth, dynamic nature of today's applications.

The use of fiber optic cables for communication has exposed doors for multiplexing communication technologies that maximize the capabilities at minimal cost.

The basic format of the SDH frame is the Synchronous Transport Module (STM). The first level is STM-1. The frame is formed by 9 rows and 270 Bytes (columns).

The fixed 50-GHz grid pattern specified by ITU standards is shown in Figure 1. Any 10G, 40G, or 100G optical service can be carried over any of the 50-GHz channels

The new Ethernet over PDH over SONET/SDH (EoPoS) approach leverages, rather than deviates from, traditional transport methods. To grasp the importance of this approach, we must start with some fundamentals of legacy SONET/SDH systems.

In response to the demand for increased bandwidth, reliability, and high-quality service, SDH developed steadily during the 1980s eliminating many of the disadvantages inherent in PDH.