What is uplink and downlink in networking?
In telecommunications, the term uplink refers to a wireless connection made from the ground to a communications satellite orbiting the Earth. The same term is sometimes used in computer networking and refers to a (wired or wireless) connection from a ?local area network (LAN) to a wide area network (WAN).
So generally frequency for uplink is kept higher than the downlink.There is greater attenuation due to rain when the signal frequency is high. because uplink to satellite has more power since we can generate more power on ground.
- TYPES OF SATELLITES
- Pupil Worksheet.
- Low Earth Orbits.
- Sun-Synchronous orbits.
- Geosynchronous satellites.
- Geostationary satellites.
- Pupil Worksheet Questions on Types of Satellite.
- The closer a satellite is to the Earth the less time it takes to orbit the Earth.
- Speed = Distance÷Time.
- The space station looks like a fast-moving plane in the sky, but it will be seen as a steady – not blinking – white pinpoint of light. Typically it will be the brightest object in the night sky (except for the Moon). It is bright enough that it can even be seen from the middle of a city!
- In 2001, Karl Glazebrook and Ivan Baldry determined that the average color of the universe was a greenish white, but they soon corrected their analysis in a 2002 paper, in which they reported that their survey of the light from over 200,000 galaxies averaged to a slightly beigeish white.
An uplink port generally means a port used that connects toward the core of the network. A downlink port generally mean the converse. In this particular usage, the switch's downlink ports are dual speed copper ports. The uplink ports are gig and copper/fiber capable.
- An uplink port generally means a port used that connects toward the core of the network. A downlink port generally mean the converse. In this particular usage, the switch's downlink ports are dual speed copper ports. The uplink ports are gig and copper/fiber capable.
- Physical Ethernet adapters serve as bridges between virtual and physical networks. In VMware Infrastructure, they are called uplinks, and the virtual ports connected to them are called uplink ports. A single host may have a maximum of uplinks, which may be on one switch or distributed among a number of switches.
- So generally frequency for uplink is kept higher than the downlink.There is greater attenuation due to rain when the signal frequency is high. since frequency is directly related to power, downlink is kept at lower band and uplink at upper band.
This signal is called an uplink. The transmission has a powerful high frequency which is referred to as a "Gigahertz (GHz) range signal". The satellite, in orbit about the Earth, receives the signal and then transmits it back to earth stations. This transmission signal back to earth is called a downlink.
- FICO scores can theoretically range between 300 and 900, although it's rare to see the extremes. Most scores fall somewhere between 600 and 800. In general, a score of 700 to 740 and above will be considered excellent or Tier 1 Credit. A score of 660 to 699 would be considered average, or Tier 2 Credit.
- Tier 4. The prescription drug tier which consists of the higher-cost prescription drugs, most are brand-name prescription drugs, and some specialty drugs. Tier 5. The prescription drug tier which consists of the highest-cost prescription drugs, most are specialty drugs.
- Tier 1 always carries the lowest copay and typically applies only to generic drugs. Tier 2 is often for "preferred" brand-name drugs. Tier 3 is often for "non-preferred" brand names. Tier 4 is for usually for "specialty" drugs, meaning very expensive ones and those used to treat rare conditions.
Updated: 4th October 2018