websters new world telecom dictionary phần 2 potx

... anyway. Start Bit Parity Bit Stop Bit 123 4567 AT&T (American Telephone and Telegraph) 42 74570c01.qxd 9/ 12/ 07 12: 34 AM Page 42 data.At 5.5 Mbps and 11 Mbps, 8 02. 11b specifies the use of the more ... Telegraph Alphabet #2 (ITA #2) . Updated in 1930, Baudot is limited to 32 (2 5 ) characters. Considering that each bit has two possible states (1 or 0), 5 bits in sequence yield 2...

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... types. adware 26 74570c01.qxd 9/ 12/ 07 12: 34 AM Page 26 ADSL2 (Asymmetric Digital Subscriber Line version 2) Specified by the ITU-T in Recommen- dations G.9 92. 3 and G.9 92. 4 (July 20 02) , ADSL2 supports ... Wire Gauge (AWG) ADSL (Asymmetric Digital Subscriber Line) 24 74570c01.qxd 9/ 12/ 07 12: 34 AM Page 24 Telecom Dictionary TM 74570flast.qxd 9/11/07 12: 17 PM Page xix 1...

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... form codewords. For example, RS (25 5 ,22 3) is byte- oriented, working with 8-bit symbols. Each codeword contains 25 5 code word bytes comprising 22 3 data symbols and 32 parity symbols. See also algorithm, ... sponsored project 1 022 to demonstrate the feasibility of asyn- chronous transfer mode (ATM).The result of the RACE initiative was the R1 022 ATM Technology Testbed (RATT). RACE pr...

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... 0.064 0.064 1 24 1.544 1.544 30 2. 048 1C 48 3.1 52 2 96 6.3 12 6.3 12 120 8.448 7.786 3 480 34.368 32. 064 6 72 44.736 3C 1,344 91.053 4 1,440 97. 728 1, 920 139 .26 8 4,0 32 274.176 5 5,760 400.3 52 7,680 565.148 ... generation 1 plus (CT1+) See CT1+. Cordless Telephony generation 2 (CT2) See CT2. Cordless Telephony generation 2 plus (CT2+) See CT2+. Cordless Telephony generati...

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... (FAST) See FAST. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 0 0 1 1 0 0 1 F L A G F L A G A D D R E S S C O N T R O L Data FRAME CHECK SEQUENCE Start Bit 123 4567 Stop Bit Parity Bit fragmentation ... of E-1s E-1 2. 048 30 1 E -2 8.448 120 4 E-3 34.368 480 16 E-4 139 .26 8 1 920 64 E-5 565.148 7680 25 6 EBCDIC (Extended Binary Coded Decimal Interchange Code...

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... Class Hosts per Network A 1.0.0.1 to 126 .25 5 .25 5 .25 4 126 16,777 ,21 4 B 128 .0.0.1 to 191 .25 5 .25 5 .25 4 16,384 65,534 C 1 92. 0.0.1 to 22 3 .25 5 .25 5 .25 4 2, 097,1 52 254 D Reserved for multicast purposes E ... aspects I .23 3.1 ISDN frame relaying bearer service ISDN (Integrated Services Digital Network) 26 0 74570c09.qxd 9/11/07 12: 22 PM Page 26 0 74570c08.qxd 9/11/07 12...

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... Tag 20 bits S 1 bit TTL 8 bits Ethernet Header MPLS Header IP Header UDP or TCP Header Application Data Ethernet Trailer MPI (MultiPath Interference) 322 74570c13.qxd 9/11/07 12: 25 PM Page 322 MEO ... attenuation, fiber optic, link, loss budget, physical reach, and signal. local loop 29 2 74570c 12. qxd 9/11/07 12: 25 PM Page 29 2 also loading coil. 3. The amount of force or weight on a...

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... LNP. Number Portability Administration Center (NPAC) See NPAC. NT2 (Network Termination 2) 3 42 74570c14.qxd 9/11/07 12: 26 PM Page 3 42 PBX generations 0–3 were all circuit switches, optimized for ... loop, multiplexing, NT, NT2, OSI Reference Model, and synchronization. 341 NT1 (Network Termination 1) 74570c14.qxd 9/11/07 12: 26 PM Page 341 NT2 (Network Termination 2) An interface to an...

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... 11 12 13 14 15 16 17 18 19 20 21 22 23 24 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 479 TDM (Time-Division Multiplexing) 74570c20.qxd 9/ 12/ 07 12: 44 AM Page 479 TWP (Two-Way ... buffer/port #24 , and transmits the bytes, in sequence, across the circuit, interleaving them into a frame of data.The 1 3 22 23 24 1 2 2 3 22 23 24 Frame Frame 1 2...

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... N.W. Washington, DC 20 005 Tel: 20 2.898 .22 00 Fax: 20 2.898 .22 13 www.naruc.org NCTA National Cable & Telecommunications Associa- tion 1 724 Massachusetts Avenue, N.W. Washington, DC 20 036 Tel: 20 2.775.3550 www.ncta.com NECA National ... DC 20 005-4754 Tel: 20 2-4 52- 7 823 Fax: 20 2-4 52- 0041 Wi-Fi Alliance Previously Wireless Ethernet Compatibility Alliance (WECA) 3 925 W...

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