websters new world telecom dictionary phần 6 pptx

... modulation (QAM, 16- QAM, and 64 -QAM). LMDS is considered obsolete in the United States, having been replaced by the IEEE 802. 16 standards, commonly known as WiMAX. See also 8-PSK, 802. 16, asymmetric, antenna, ... status. MTS (Message Telecommunications Service) Synonymous with Direct Distance Dialing (DDD). See DDD. MTS/WATS Decision (Message Telecommunications Service/ Wide Area Teleco...

Ngày tải lên: 14/08/2014, 09:20

... Stations Give World- wide Radio Coverage,” published in Wireless World in February 1945. See also Clarke, Sir Arthur C. 8B/10B (8 Bits/10 Bits) 16 74570cintro.qxd 9/11/07 12:17 PM Page 16 64B /66 B A block ... with a core diameter of 62 .5 Ì, using a wavelength of 850 nm,with a modal bandwidth of 160 MHz/km, and a max- imum distance of 160 meters.The letter R indicates that 64 B /66 B...

Ngày tải lên: 14/08/2014, 09:20

... AWG, Ethernet, LAN, STP, and UTP. Cat 6 (Category 6) A type of cabling that is specified in ANSI/ICEA S-91 -66 1,ANSI/EIA/TIA 568 , and ISO/IEC 11801. Cat 6 was developed specifically in support ... 57 .6 Kbps in the reverse direction. Switch CPU Power Supply blog (Web log) 64 74570c02.qxd 9/11/07 12:18 PM Page 64 Cat 5 (Category 5) A type of cabling that is specified in ANSI/ICEA S...

Ngày tải lên: 14/08/2014, 09:20

... 1 0. 064 0. 064 0. 064 1 24 1.544 1.544 30 2.048 1C 48 3.152 2 96 6.312 6. 312 120 8.448 7.7 86 3 480 34. 368 32. 064 67 2 44.7 36 3C 1,344 91.053 4 1,440 97.728 1,920 139. 268 4,032 274.1 76 5 5, 760 400.352 7 ,68 0 ... 274.1 76 5 5, 760 400.352 7 ,68 0 565 .148 565 .148 6 30,720 2200.00 E-Carrier (Europe) T-Carrier (North America) digital certificate 1 36 74570c04.qxd 9/11/07 1...

Ngày tải lên: 14/08/2014, 09:20

... Level Data Rate (Mbps) Number of 64 kbps Channels (DS-0s) Number of E-1s E-1 2.048 30 1 E-2 8.448 120 4 E-3 34. 368 480 16 E-4 139. 268 1920 64 E-5 565 .148 768 0 2 56 EBCDIC (Extended Binary Coded ... paging system supported by the European Telecommunications Standards Institute (ETSI) and the European Union (EU). ERMES operates at 6, 250 bps in the 169 .4– 169 .8 MHz band and uses fre...

Ngày tải lên: 14/08/2014, 09:20

... host, as appropriate.The IPv6 address field size is 128 bits, which yields the theoretical potential for 2 128 or 340,282, 366 ,920,938, 463 , 463 ,374 ,60 7,431, 768 ,211,4 56 unique addresses.At this level, ... Protocol version 6 (IPv6). See IPv6. Internet protocol suite See TCP/IP protocol suite. Internet Protocol version 4 (IPv4) See IPv4. Internet Protocol version 6 (IPv6) See IPv6....

Ngày tải lên: 14/08/2014, 09:20

... SDH/SONET Interface Line Rate OC/STM Level Line Rate OTU-1 2 .66 6 Gbps OC-48/STM- 16 2.488 Gbps OTU-2 10.709 Gbps OC-192/STM -64 9.953 Gbps OTU-3 43.018 Gbps OC- 768 /STM-2 56 39.813 Gbps G.709 also specifies an interface ... Office Switch Line Interfaces PBX MDF Host Interface AP demarc Data Network PBX Tie Trunk CO Trunk PBX (Private Branch eXchange) 366 74570c 16. qxd 9/11/07 12:27 PM...

Ngày tải lên: 14/08/2014, 09:20

... ohms 1 16 in. Solid RG-58A/U Military Spec RG-58A/U 20 AWG 50 ohms 1 16 in. Stranded 10Base2 Ethernet, CATV RG-59/U 20 AWG 75 ohms 1 46 in. Solid Ham Radio, CCTV RG -62 /U 22 AWG 93 ohms .1 46 in. Solid ... Texas) Pacific Bell (California) Nevada Bell (Nevada) New England Telephone (Massachusetts, Maine, New Hampshire, Rhode Island, and Vermont) New York Telephone (New York) Bell O...

Ngày tải lên: 14/08/2014, 09:20

... 1,099,511 ,62 7,7 76 (2 40 ) bytes, as the measurement of internal computer memory is based on a base 2, or binary, number system. The term TB comes from the fact that 1,099,511 ,62 7,7 76 is nominally, ... 1 3 22 23 24 1 2 2 3 22 23 24 Frame Frame 1 2 3 4 5 6 7 8 9 10 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 (...

Ngày tải lên: 14/08/2014, 09:20

... 22 76 761 11 Fax: +41 22 76 765 55 www.cern.ch CSA International Canadian Standards Association International 5 060 Spectrum Way Mississauga, ONT L4W 5N6 Canada Tel: 4 16. 747.4000, or 800- 463 -67 27 Fax: ... 07 960 -66 28 Tel: 973.944.5100 Fax: 973.944.5110 www.nmf.org Unicode Consortium Attn: Magda Danish 1 065 L’Avenida Street Microsoft Building 5 Mountain View, CA 94043 Tel: 65 0 .69...

Ngày tải lên: 14/08/2014, 09:20