Related:
1000BASE-SX,
100BASE-T,
10BASE5,
10PASS-TS,
Amplitude-shift keying,
Amplitude modulation,
Bandpass,
Bandpass filter,
Bandwidth (signal processing),
Baseband,
Broadband,
Cable modem,
Carrier wave,
Composite video,
Constellation diagram,
DVD,
Demodulation,
Demultiplexing,
Digital modulation,
Discrete multi-tone modulation,
Double sideband,
Ethernet physical layer,
Frequencies,
Frequency-division multiplexing,
Frequency-shift keying,
Game console,
Hertz,
International Standard Book Number,
Line code,
Line coding,
Local area network,
Modem,
Modulation,
Multiplexing,
Narrowband,
Passband,
Phase-shift keying,
Quadrature amplitude modulation,
RF signal,
Radio frequency,
Sideband,
Signal (information theory),
Signal processing,
Single-sideband modulation,
Spectral density,
Telecommunication,
Telecommunications,
Transmission (telecommunications),
VCR,
VDSL,
Wideband,
In telecommunications and signal processing, baseband is an adjective that describes signals and systems whose range of frequencies is measured from zero to a maximum bandwidth or highest signal frequency; it is sometimes used as a noun for a band of frequencies starting at zero. It can often be considered as synonym to lowpass, and antonym to passband, bandpass or radio frequency (RF) signal.
Gigabit Ethernet (GbE or 1 GigE) is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second, as defined by the IEEE 802.3-2008 standard. Half-duplex gigabit links connected through hubs are allowed by the specification but in the marketplace full-duplex with switches are normal.
Ethernet over twisted pair refers to the use of cables that contain insulated copper wires twisted together in pairs for the physical layer of an Ethernet network—that is, a network in which the Ethernet protocol provides the data link layer. Other Ethernet cable standards use coaxial cable or optical fiber. There are several different standards for this copper-based physical medium. The most widely used are 10BASE-T, 100BASE-TX, and 1000BASE-T (Gigabit Ethernet), running at 10 Mbit/s, 100 Mbit/s (also Mbps or Mbs-1), and 1000 Mbit/s (1 Gbit/s) respectively. These three standards all use the same connectors. Higher speed implementations nearly always support the lower speeds as well, so that in most cases different generations of equipment can be freely mixed. They use 8 position modular connectors, usually called RJ45 in the context of Ethernet over twisted pair. The cables usually used are four-pair twisted pair cable (though 10BASE-T and 100BASE-TX only actually require two of them). Each of the three standards support both full-duplex and half-duplex communication. According to the standards, they all operate over distances of up to 100 meters.
10BASE5 (also known as thicknet) is the original "full spec" variant of Ethernet cable, using special cable similar to RG-8/U coaxial cable. This is a stiff, 0.375-inch (9.5 mm) diameter cable with an impedance of 50 ohms (Ω), a solid center conductor, a foam insulating filler, a shielding braid, and an outer jacket. The outer sheath is often yellow-to-orange/brown foam fluorinated ethylene propylene (for fire resistance) so it often is called "yellow cable", "orange hose", or sometimes humorously "frozen yellow garden hose".[1]A band-pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range. An example of an analogue electronic band-pass filter is an RLC circuit (a resistor–inductor–capacitor circuit). These filters can also be created by combining a low-pass filter with a high-pass filter.[1]
A band-pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range. An example of an analogue electronic band-pass filter is an RLC circuit (a resistor–inductor–capacitor circuit). These filters can also be created by combining a low-pass filter with a high-pass filter.[1]Bandwidth is typically measured in hertz, and may sometimes refer to passband bandwidth, sometimes to baseband bandwidth, depending on context. Passband bandwidth is the difference between the upper and lower cutoff frequencies of, for example, an electronic filter, a communication channel, or a signal spectrum. In case of a lowpass filter or baseband signal, the bandwidth is equal to its upper cutoff frequency. The term baseband bandwidth refers to the upper cutoff frequency. Bandwidth in hertz is a central concept in many fields, including electronics, information theory, radio communications, signal processing, and spectroscopy.In telecommunications and signal processing, baseband is an adjective that describes signals and systems whose range of frequencies is measured from zero to a maximum bandwidth or highest signal frequency; it is sometimes used as a noun for a band of frequencies starting at zero. It can often be considered as synonym to lowpass, and antonym to passband, bandpass or radio frequency (RF) signal.