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Topic: Multiplexer

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In the News (Tue 18 Jun 19)

  The Two-Input Multiplexer
The multiplexer circuit is typically used to combine two or more digital signals onto a single line, by placing them there at different times.
This is not as difficult as it may seem at first glance; the telephone network combines multiple audio signals onto a single pair of wires using exactly this technique, and is readily able to separate many telephone conversations so that everyone's voice goes only to the intended recipient.
A set of multiplexers is used to first select the row address to the memory, then switch to the column address.
www.play-hookey.com /digital/multiplexer_two_input.html   (526 words)

  Current Multiplexer
The DRA-CSM-1 Current Multiplexer is a solid state multiplexer capable of transferring the selected 4-20 mA input current signal to the output terminals in less than 10 microseconds at an accuracy better than 0.01%.
The channel selected by the multiplexer is directed to the control device’s (e.g., PLC’s) analog inputs.
Power is maintained by the multiplexer to the unselected channels thereby maintaining uninterrupted transmitter current flow.
www.omega.com /pptst/DRA-CSM.html   (224 words)

  Multiplexer - Wikipedia, the free encyclopedia
This would be typical where a multiplexer serves a number of IP network users and then feeds directly into a router which immediately reads the content of the entire link into its routing processor and then does the demultiplexing in memory from where it will be converted directly into IP packets.
It is usual to combine a multiplexer and a demultiplexer together into one piece of equipment and simply refer to the whole thing as a "multiplexer".
For example, a two-input multiplexer is a simple connection of logic gates whose output Y is either input A or input B depending on the value of a third input S which selects the input.
en.wikipedia.org /wiki/Multiplexer   (591 words)

 Inverse multiplexer - Wikipedia, the free encyclopedia
An inverse multiplexer (often abbreviated to "inverse mux", "imux" or "demux") allows a data stream to be broken into multiple lower data rate communications links.
An inverse multiplexer differs from a demultiplexer in that each of the low rate links coming from it is related to the other ones and they all work together to carry the same data.
Note that this is the opposite of a multiplexer which creates one high speed link from multiple low speed ones.
en.wikipedia.org /wiki/Inverse_multiplexer   (379 words)

 Digispec - Choosing a Multiplexer   (Site not responding. Last check: 2007-11-02)
Multiplexer front ends are of two types, analog color space decoding/encoding or completely digital using new computer multimedia chips utilizing the DMSD (Digital Multistandard Decoder) technology.
The main thing a simplex multiplexer does not have is the ability to record and show a multiscreen display at the same time whether it is 4,8,16 or 32 camera screen.
In multiplexer recording this has not consequence but eliminates live viewing of any one camera while the system is multiplex recording.
www.digispec.com /manuals/multiplexer_talk.htm   (2518 words)

 Circuit Implementation Using Multiplexers
A multiplexer performs the function of selecting the input on any one of 'n' input lines and feeding this input to one output line.
Multiplexers are used as one method of reducing the number of integrated circuit packages required by a particular circuit design.
There is a static multiplexer where you have to operate all the switches and there is one with a clock input where the output can be seen graphically.
www.ee.surrey.ac.uk /Projects/Labview/multiplexer/index.html   (298 words)

 MTI - Choosing a Multiplexer
The multiplexer then switches to the new field at the vertical inter-val of the previous field thus genlocking the two electronically.
The main thing a simplex multiplexer does not have is the ability to record and show a multiscreen display at the same time whether it is 4,8,16 or 32 camera screen.
A duplex multiplexer has the ability to display the multiscreen and record to the VCR the multiplexed data.
www.multiplexertechnology.com /multiplexer_talk.htm   (2519 words)

 Pandatel AG - Multiplexer   (Site not responding. Last check: 2007-11-02)
The multiplexing process is an excellent solution for the optimisation of the capacity parameters of fiber optic and copper networks and hence significant cost reductions.
However, the application of multiplexers - solutions used for aggregating (pooling) several signals and their subsequent joint transmission across transparent media - should result in the reduction of costs related to fiber optic cables and in improved efficiency parameters of previously set-up networks.
In the course of multiplexing, the data received are converted into higher bit rate streams, and subsequently transmitted via copper or fiber optic cables.
www.pandatel.com /pandatel/products/multiplexer/index.jsp   (318 words)

 NMEA-Multiplexer   (Site not responding. Last check: 2007-11-02)
The N183-41 Multiplexer enables the interfacing of multiple NMEA 0183 devices to a single serial port of the host computer.
The N183-41 Multiplexer combines up to four NMEA instruments into a single RS-232 output for use by a computer.
Whenever a complete message is received, the multiplexer automatically dumps it to the RS-232C, output even while it is still reading the inputs.
www.stentec.com /software/nmea_i.html   (267 words)

 Multiplexer of Smartec
The multiplexer MUCC01 is especially designed for use in combination with the Smartec Universal Transducer Interface (UTI).
Because the capacitance measurement is based on charge transport, special attention is given to the outputs of the circuit.
By means of the design the multiplexer has an output impedance of less then 20 O and also the rail-to-rail output voltage is well defined.
www.smartec.nl /multiplexer.htm   (157 words)

 Using optical fiber multiplexer to combine light beams in a laser printer - Patent 5666447
a second optical fiber multiplexer having a first input port connected to said second output of said first optical fiber multiplexer and its second input port connected to one of said laser light sources, and a pair of output ports having said first and second wavelengths of light.
Fiber multiplexers used in the optical communication are either not able to provide efficient use of optical power provided by the light sources or not matched to the media photosensitivities.
In each optical fiber multiplexer, part of the light will be coupled out to the other fiber, the more optical fiber multiplexers it passes through, the more light will be coupled out and the greater the loss incurred by the optical fiber multiplexer.
www.freepatentsonline.com /5666447.html   (3469 words)

 Multiplexer, Remote Access, DSU, RS-232, LAN, SCADA , WAN Products from DCB
Describes how inexpensive tools can be utilized to manage small to large sized WANs based upon multiplexers.
DCB SR Multiplexer and Cisco routers co-exist with frame relay
Frame Relay is the same, we simply use it to transport other protocols in addition to LAN traffic.
www.dcbnet.com /apnotes.html   (4478 words)

 Video Monitoring Internet Video Multiplexer for your PC switch 8 video inputs internet video monitoring www.fgeng.com
The video multiplexer can be used on its own without Surveillance WebCam program to do video switching.
Example, install video multiplexer in your computer, and connect it to the video input of your multi-media card.
The video multiplexer is a small pc card which mounts into one spare slot of your computer.
www.surveillance-webcam.com /vmux.htm   (479 words)

 NMEA Multiplexer with optional Seatalk-NMEA bridge + USB.
This is to a high degree determined by the efficiency of the multiplexer's buffering mechanism.
A low-cost Seatalk interface option is available for all Brookhouse multiplexers which allows connection of the Raymarine Seatalk bus to one of the multiplexer ports.
By combining the multiplexer function with the Seatalk to NMEA conversion, an efficient system is created which results in important cost savings.
brookhouseonline.com /nmea_multiplexer.htm   (1036 words)

 Downlink Data Multiplexer
The multiplexer of each system would be installed in the spacecraft, where it would acquire and process data from such sources as commercial digital camcorders, video tape recorders, and the spacecraft telemetry system.
The figure is a block diagram of the multiplexer as configured to process data received via three fiber-optic channels like those of the International Space Station and one electrical-cable channel that conforms to the Institute of Electrical and Electronic Engineers (IEEE) 1394 standard.
The output of the multiplexer is connected via a coaxial cable with an impedance of 50 Ω to an interface circuit compatible with the space-shuttle high-speed digital downlink, which operates at a rate of 48 Mb/s.
www.nasatech.com /Briefs/Mar04/MSC23303.html   (467 words)

 Multiplexer Overview
Put simply, a multiplexer allows several camera signals to be recorded onto one videotape.
This is an area of memory within a multiplexer that is used to store pictures when they are digitised.
Since the cameras within a multiplexer based system are recorded in a time-division multiplex, and each camera is allotted a slot of time, the update rate will be dependent upon the number of cameras recorded.
www.cctv-information.co.uk /multiplexover.html   (826 words)

 Multiplexing probes for flow mapping   (Site not responding. Last check: 2007-11-02)
These multiplexers has been designed to enable easy flow mapping studies, in case of stationary velocity field or when only mean values of the velocity field are requested.
The external multiplexer unit is controlled directly by the velocimeter through its RS232 serial port by means of a software module which is included in the WDOP software of the DOP2000.
During the acquisition process, the multiplexer switches from one channel to the other after the measurement of a user's defined number of data profiles.
www.signal-processing.com /accessories/mpx.htm   (209 words)

 Gemini Fiber Multiplexer for AS400 and S/3X Wiring   (Site not responding. Last check: 2007-11-02)
Decision Data’s eight-port, fiber-optic Gemini Express Multiplexer offers the unique ability to allow up to two AS/400 controller polling groups to be transmitted over a single fiber optic pair.
Controller redundancy and maximum fiber optic efficiency are obtained by multiplexing four ports each from up to two separate controllers for a total device capacity of 56 — the highest in the industry.
The Gemini Express Multiplexer has eight shielded RJ45 port connections as well as a DB25 direct-connection eliminating the need for the twinax brick and associated twinaxial cabling.
www.5250connect.com /DecisionData/DDgeminimux.htm   (415 words)

 Pelco 9 Channel BW Duplex Genex Multiplexer
Unlike most multiplexers, Genex contains a powerful re-sizing engine which uses patented Active Image technology to provide broadcast quality, image re-sizing for both multi-camera and zoom displays.
Multiplexer server, 120 VAC, 60 Hz, for use with NTSC and RS-170 format multiplexers.
Provides centralized control of up to 8 multiplexers by one or more operators.
www.123securityproducts.com /123securityproducts/pel9chancold.html   (376 words)

 Multiplexer   (Site not responding. Last check: 2007-11-02)
All multiplexer cables are labeled as follows: number closest to the connector is the mux number, the other number is the channel number of the multiplexer.
For example on the bottom of the picture one sees cable (0/0) which means multiplexer 0 cahnnel 0 and the next cable is labeled with (0/3) mutliplexer 0 channel 3.
The connection between FED and multiplexer is done via a LEMO connector on the multiplexer.
www-ekp.physik.uni-karlsruhe.de /~weiler/readout/multiplexer/multiplexer.html   (121 words)

 Multiplexer Electronic Circuits
Analog multiplexer uses flying capacitors: 01/22/04 EDN Design Ideas / (added 1/05) This Design Idea describes a way to increase number of analog inputs to your microcontroller for cases in which adding an analog-multiplexer chip or upgrading to a microcontroller with more inputs might be impractical.
Multiplexer Amplifiers form large multiplane multiplexer structures: 12/26/02 EDN Design Ideas / (added 1/05) The variety of video sources available to a home-video-switching system has grown from a few composite inputs to many multisignal sources.
The output of the multiplexer connects to the noninverting input of the op amp, and the inverting input is available as an external pin on the IC.
www.discovercircuits.com /M/multiplex.htm   (1333 words)

 What Is Multiplexer
In electronics, a multiplexer or mux is a device thatcombines several electrical signals into a single signal.
This would be typical where a multiplexer serves a number of IP network users and then feeds directly into a router which immediately reads the content of the entire link into its routing processor andthen does the demultiplexing in memory from where it will be converted directly into IP packets.
It is usual to combine a multiplexer and a demultiplexer together into one piece of equipment and simply refer to the wholething as a "multiplexer".
www.altvetmed.com /face/5845-what-is-multiplexer.html   (545 words)

 VCL-E3 Channel Bank and Multiplexer
VCL-E3, 34Mbps Multiplexer is a third order skip multiplexer / demultiplexer unit, based on PDH (Plesiochronous Digital Hierarchy) technology.
It multiplexes sixteen 2.048Mbps (hereafter referred to as 2Mbps) E1 tributaries into a single 34.368Mbps (hereafter referred to as 34Mbps) E3 tributary.
VCL-2/34 Mbps Multiplexer system consists of two VCL-2/34 Mbps terminals one each at the local and remote ends, connected through a 34Mbps stream, providing end to end services for sixteen, 2Mbps streams.
www.pulsewan.com /valiant/vcle3.htm   (280 words)

 IBM Networking | 7299 Express Hubs and Multiplexer
Jumpers inside the 7299 Multiplexer must be properly set to use either the DB25 direct connect on the rear of the Multiplexer or the RJ45 connectors on the front.
The 7299 Multiplexer can be connected to All devices that are connected to the host through a 5494, 5394, or 5294 Remote Control Unit operate at 1 Mbps mode, because these remote control units do not support 2 Mbps mode.
Ensure that all connections (UTP or DB25) to the Host Multiplexer are made such that one and only one WSC Polling Group (of up to four ports within a single group) is connected to the "A" (ports 0-3) and "B" (ports 4-7) Sides of the Multiplexer.
www.networking.ibm.com /nhd/webnav.nsf/pages/729:7299book:7299book.html   (13730 words)

 Telemetry Solutions - Multiplexer Page
The 7151 Multiplexer (MUX) is an inexpensive and feature-packed serial data hub designed to receive 20mA, RS-232, or RS-422 serial data from up to 8 separate serial devices, with either similar or different protocols and data structures.
Each input port is optically isolated for maximum protection, and manages incoming data flow at rates up to 19.2k Baud per channel, with transmission rates via RS-232 or RS-422 up to 38.4K Baud.
No other multiplexer offers this versatility or ease of use.
www.statpak-pc.com /muxs.htm   (177 words)

 TCLLIB - Tcl Standard Library: multiplexer
For example, think of a chat system where one user sends a message which is then broadcast to all the other connected users.
The result returned by the last filter is the data which will be broadcast to all clients of the multiplexer instance.
the access to the multiplexer instance is denied and the client channel is closed immediately.
tcllib.sourceforge.net /doc/multiplexer.html   (406 words)

 Multiplexer   (Site not responding. Last check: 2007-11-02)
This multiplexer has a redundant common logic and power supply.
This is to ensure a high level of system reliability.
The multiplexer standards are based on compatibility in multi-vendor environments worldwide.
ruffryder5.homestead.com /Multiplexer.html   (111 words)

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