(redirected from Multiplexers)
Also found in: Dictionary, Thesaurus, Medical, Legal.


A device for combining two or more signals, as for multiplex, or for creating the composite color video signal from its components in color television. Also spelled multiplexor.



in telegraphy, a switching device that is used to reduce the number of telegraph transmitters in a telegraph office as compared with the number of incoming communication lines. A distinction is made between manual and automatic multiplexers. They are used on lightly loaded lines, where the daily traffic does not exceed 30-80 telegrams.

The main element of a multiplexer is a switch, whose handle may be set in three positions: the horizontal (off) position; the upper position, which connects one telegraph transmitter to a communications line; and the lower position, which connects the other telegraph transmitter. The number of switches in a multiplexer is equal to the number of communications lines. Each switch is connected to its own communications lines, and all switches are connected to two telegraph transmitter stations for receiving and transmitting telegrams through the lines.

Upon receiving a call signal from the city communications office, the telegraph operator moves the handle of the switch located under the lighted signal to, for example, the upper position (thus connecting the first of two telegraph transmitter stations). If a call is received from another city communications office while the first transmitter station is still in operation, the telegraph operator moves the handle of the appropriate switch to lower position, thus connecting the second station. After completion of transmission or reception of a telegram the switches of the multiplexer are moved to the horizontal position.



References in periodicals archive ?
As a leading component supplier for DDR4 NVDIMMs, including NVDIMM registered clock drivers (RCD), temperature sensors and now multiplexers, we have diligently worked with leading companies like Micron to develop solutions that deliver best-in-class performance in both homogeneous and heterogeneous memory channel populations.
In addition, different multiplexers will show different efficiencies, even if they are handling identical data traffic.
The Mini-Mux 840 Remote Terminal is a carrier class OC-3 Multiplexer that supports up to 28 DS1s over an OC-3.
which provides for both a reciprocal resale arrangement and the joint development of a cost-effective central site data/voice multiplexer product.
Series T4000 multiplexers will enable their users to save on communications line costs by taking advantage of integrated T1 access services from carriers, or to form private networks using the T4000s as nodes.
The Mini-Mux 2000 combines the functionality of a DS3 Add/Drop Multiplexer (ADM) with support for Ethernet.
The 240 NTU can be used to extend the channel-side range of the Tellabs CROSSNET multiplexer.
The 2080MX fulfills the test and measurement community's need for a truly broadband multiplexer that enables the generation of signals for testing at all frequencies up to and above 10 Gigabit Ethernet and SONET standards," said Kevin Nary, vice president of engineering, Inphi Corporation.
The company states that the multiplexer will offer the following:
carrier has extended Telco Systems' contract as the sole provider of DS1 to DS3/STS-1 multiplexer equipment.
The TEMUX 32 device supports up to 32 T1, 32 E1 or 1 DS3/E3 link and features an M13 Multiplexer and VT/TU mapper.
Key features of PMC-Sierra's intelligent SPS active/active multiplexer include: