Netcomm V85 用户手册

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V85 Desktop VoIP Phone User Guide 
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YML772 Rev1 
Appendix F: Glossary of Network and VoIP Terms
10BASE-T
 
A designation for the type of wiring used by Ethernet networks with 
a data rate of 10 Mbps. Also known as Category 3 (CAT 3) wiring. 
See also data rate, Ethernet.
100BASE-T
 
A designation for the type of wiring used by Ethernet networks with 
a data rate of 100 Mbps. Also known as Category 5 (CAT 5) wiring. 
See also data rate, Ethernet.
ADSL
 
Asymmetric Digital Subscriber Line. The most commonly deployed 
type of DSL for home users. The term asymmetrical refers to its 
unequal data rates for downloading and uploading (the download 
rate is higher than the upload rate). The asymmetrical rates benefit
home users because they typically download much more data from 
the Internet than they upload.
analog
 
Of data, having a form is analogous to the data’s original
waveform
 
The voice component in DSL is an analog signal.
 
See also digital.
ATM
 
Asynchronous Transfer Mode A standard for high-speed 
transmission of data, text, voice, and video, widely used within the 
Internet. ATM data rates range from 45 Mbps to 2.5 Gbps. See also 
data rate.
authenticate
 
To verify a user’s identity, such as by prompting for a password.
binary
 
The “base two” system of numbers, that uses only two digits, 0 and 
1, to represent all numbers. In binary, the number 1 is written as 1, 2 
as 10, 3 as 11, 4 as 100, etc. Although expressed as decimal numbers 
for convenience, IP addresses in actual use are binary numbers; e.g., 
the IP address 209.191.4.240 is 11010001.10111111.00000100.1 
1110000 in binary. See also bit, IP address, network mask.
bit
 
Short for “binary digit,” a bit is a number that can have two values, 0 
or 1. See also binary.
bps
 
bits per second
bridging
 
Passing data from your network to your ISP and vice versa using 
the hardware addresses of the devices at each location. Bridging 
contrasts with routing, which can add more intelligence to data 
transfers by using network addresses instead. The ADSL modem can 
perform both routing and bridging. Typically, when both functions 
are enabled, the device routes IP data and bridges all other types of 
data. See also routing.
broadband
 
A telecommunications technology that can send different types of 
data over the same medium. DSL is a broadband technology. 
Broadcast
 
To send data to all computers on a network.