Nortel Networks NB5PLUS4/W Manuale Utente

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YML754 Rev1 
NB5Plus4/W User Guide
www.netcomm.com.au 
7
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 asym-
metrical refers to its unequal data rates for download-
ing 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 origi-
nal 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 11010001.10111111.000001
00.11110000 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 My ADSL Modem can perform