websters new world telecom dictionary phần 4 pps

... 64 kbps Channels (DS-0s) Number of E-1s E-1 2. 048 30 1 E-2 8 .44 8 120 4 E-3 34. 368 48 0 16 E -4 139.268 1920 64 E-5 565. 148 7680 256 EBCDIC (Extended Binary Coded Decimal Interchange Code) 158 745 70c05.qxd ... Gbps (200 MBps), 2 Gbps (40 0 MBps), 4 Gbps (800 MBps), and 10 Gbps ( 240 0 MBps or 2 .4 GBps). Gateways are responsible for protocol conversion to support intercon- nect...

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websters new world Telecom Dictionary phần 1 potx

... Gauge 1. 544 Mbps (T1) 2. 048 Mbps (E-1) 24 18,000 ft. 0.5 mm 5.5 km 1. 544 Mbps (T1) 2. 048 Mbps (E-1) 26 15,000 ft. 0 .4 mm 4. 6 km 6. 144 Mbps (4 x T1) 24 12,000 ft. 0.5 mm 3.7 km 6. 144 Mbps (4 x T1) ... and eternal 745 70ffirs.qxd 9/11/07 12: 14 PM Page v 745 70flast.qxd 9/11/07 12:17 PM Page xiv Telecom Dictionary TM 745 70ffirs.qxd 9/11/07 12: 14 PM Page i 745 70ffirs....

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websters new world telecom dictionary phần 2 potx

... did fit in, anyway. Start Bit Parity Bit Stop Bit 12 345 67 AT&T (American Telephone and Telegraph) 42 745 70c01.qxd 9/12/07 12: 34 AM Page 42 data.At 5.5 Mbps and 11 Mbps, 802.11b specifies the ... bit, synchronous, synchronous transmission, XMODEM, and ZMODEM. 41 asynchronous transmission 745 70c01.qxd 9/12/07 12: 34 AM Page 41 BIP (Bit Interleaved Parity) In SDH and SONET ne...

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websters new world telecom dictionary phần 3 pdf

... 0.0 64 0.0 64 0.0 64 1 24 1. 544 1. 544 30 2. 048 1C 48 3.152 2 96 6.312 6.312 120 8 .44 8 7.786 3 48 0 34. 368 32.0 64 672 44 .736 3C 1, 344 91.053 4 1 ,44 0 97.728 1,920 139.268 4, 032 2 74. 176 5 5,760 40 0.352 7,680 ... dotted quad, hexadecimal notation, IP, IPv4, IPv4 address, IPv6, IPv6 address, and octet. 143 dotted decimal notation 745 70c 04. qxd 9/11/07 12:19 PM Page...

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websters new world telecom dictionary phần 5 ppt

... theoretical potential for 2 128 or 340 ,282,366,920,938 ,46 3 ,46 3,3 74, 607 ,43 1,768,211 ,45 6 unique addresses.At this level, the dotted decimal notation convention employed in IPv4 becomes cumbersome, so an ... use. Table I-3: IPv4 Address Classes Class Address Range Networks per Class Hosts per Network A 1.0.0.1 to 126.255.255.2 54 126 16,777,2 14 B 128.0.0.1 to 191.255.255.2 54 16,3...

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websters new world telecom dictionary phần 6 pptx

... Operating System) 3 24 745 70c13.qxd 9/11/07 12:25 PM Page 3 24 line coding The manner in which data bits, or blocks of data bits, are represented on a line. Examples include 4B3T, 4B/5B, alternate ... MPEG-2 in 1992. See also HDTV, IEC, ISO, and MPEG-2. MPEG -4 The ISO/IEC International Standard (IS 144 96) for multimedia applications. MPEG -4 is a low bit-rate standard for encoding and...

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websters new world telecom dictionary phần 7 doc

... dispersion, noise, refractive index, SMF, wavelength, window, and ZDSF. NXX 344 745 70c 14. qxd 9/11/07 12:26 PM Page 344 adds the marks, or 1 bits, that compose the seven-bit character to determine ... Portability Administration Center (NPAC) See NPAC. NT2 (Network Termination 2) 342 745 70c 14. qxd 9/11/07 12:26 PM Page 342 PBX generations 0–3 were all circuit switches, optimized for...

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websters new world telecom dictionary phần 8 potx

... of a techni- cal or scientific nature. SLIP (Serial Line Internet Protocol) 44 4 745 70c19.qxd 9/12/07 12 :41 AM Page 44 4 receiver Also known as a sink, a receiver is a target device, or destination ... telephone +3V 0 -3V +3V 0 -3V +3V 0 -3V 1 cps, 1 Hz 2 cps, 2 Hz 3 cps, 3 Hz 1 second 44 1 single number dialing 745 70c19.qxd 9/12/07 12 :41 AM Page 44 1 R1.The symbol for Resistance. S...

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websters new world telecom dictionary phần 9 doc

... 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 47 9 TDM (Time-Division Multiplexing) 745 70c20.qxd 9/12/07 12 :44 AM Page 47 9 TWP (Two-Way Paging) A ... plowed in and strength member 46 4 745 70c19.qxd 9/12/07 12 :41 AM Page 46 4 This approach resembles Dynamic Host Configuration Protocol (DHCP) used in IPv4. See also DHCP, IPv4, IPv6...

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websters new world telecom dictionary phần 10 pdf

... Inc. 141 0 Kendrick Street Building A, Suite 300 Needham, MA 0 249 4 Tel: 781 .44 4. 040 4 Fax: 781 .44 4.0320 www.omg.org The Open Group Previously the Electronic Messaging Association (EMA) 44 Montgomery ... Francisco, CA 941 04- 47 04 Tel: 41 5.3 74. 8280 Fax: 41 5.3 74. 8293 www.opengroup.org PCIA Personal Communications Industry Association 500 Montgomery Street, Suite 700 Alexandr...

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