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Definice (728)

1

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cell


This is the data packet unit that ATM transmits. One cell consists of 53 bytes.
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im


IM (Instant Messaging) refers to chat applications. Chat is real-time, text-based communication between two or more users via networked-connected devices.
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snr


Signal-to-Noise Ratio (SNR) is the ratio of the amplitude of the desired (DSL) signal to the amplitude of noise signals at a given point in time. The higher the SNR number, the better the line quality.
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transceiver


A transceiver houses both a transmitter and a receiver.
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utm


A UTM (Unified Threat Management) appliance integrates firewall, content filtering, spam filtering, intrusion detection and anti virus functions into a single network appliance.
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vdsl


Very High Bit Rate DSL is an asymmetric version of DSL that is used as the final drop from a fiber optic junction point to nearby customers. VDSL lets an apartment or office complex obtain high-bandwidth services using existing copper wires without having to replace the infrastructure with optical fiber. Like ADSL, VDSL can share the line with the [..]
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v series recommendations


V.xx or V Series Recommendations are the most commonly used international modem/telephone network standards. The V.xx series recommendations are from the ITU-TS (Telecommunication Standardization Sector of the International Telecommunications Union) and will probably replace the old American Telephone and Telegraph Company/Bell System MNP (Microcom [..]
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vc-based multiplexing


By prior mutual agreement, each protocol is assigned to a specific virtual circuit, eg., VCI carries IP, VC2 carries IPX, etc. VC-based multiplexing may be dominant in environments where dynamic creation of large numbers of ATM VCs is fast and economical.
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vci


A VCI is a number that denotes a particular logical connection between end stations (users or networks). A VCI specifies the channel and destination that ATM traffic will use. See also, VPI.
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voice gateway


A voice gateway is an interface to the telephone network for VoDSL services found between an AAL-2 circuit and a GSTN.
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