websters new world telecom dictionary phần 3 pdf

... 1.544 30 2.048 1C 48 3. 152 2 96 6 .31 2 6 .31 2 120 8.448 7.786 3 480 34 .36 8 32 .064 672 44. 736 3C 1 ,34 4 91.0 53 4 1,440 97.728 1,920 139 .268 4, 032 274.176 5 5,760 400 .35 2 7,680 565.148 565.148 6 30 ,720 ... (DAMA) See DAMA. Skew = t – t t t t t 1 2 3 4 4 1 dedicated circuit 130 74570c04.qxd 9/11/07 12:19 PM Page 130 do not disturb (DND) A feature of voice telecommunica...

Ngày tải lên: 14/08/2014, 09:20

... NARTE National Association of Radio and Telecommunications Engineers 167 Village Street Medway, MA 020 53 Tel: 508. 533 . 833 3 or 800.896.27 83 Fax: 508. 533 .38 15 www.narte.org NARUC National Association ... 800.759. 030 0 Fax: 7 03. 836 .1608 www.pcia.com PCMCIA Personal Computer Memory Card International Association 2 635 North First Street, Suite 218 San Jose, CA 95 134 Tel: 408. 4...

Ngày tải lên: 14/08/2014, 09:20

... (AT&T), a New York corporation. On December 30 , 1899, the last business day of the nineteenth century,AT&T became the new parent company.AT&T grew to become the largest company in the world, ... Updated in 1 930 , 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 5 (32 ) possible combinations....

Ngày tải lên: 14/08/2014, 09:20

... E -3. Table E -3: European Digital Hierarchy: E-Carrier E-carrier 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 .36 8 480 16 E-4 139 .268 ... a Fabry-Perot laser operating at a nominal wavelength of 131 0 nm might also emit weaker signals at wave- lengths ranging from 130 7– 131 3 nm.This spectral width causes some amount of...

Ngày tải lên: 14/08/2014, 09:20

... Description I. 233 .2 ISDN frame switching bearer service I .31 1 B-ISDN General Network Aspects I .31 3 B-ISDN network requirements I .32 0 ISDN protocol reference model I .32 1 B-ISDN protocol reference model I .32 4 ... performance I .36 1 B-ISDN ATM Layer Specification I .36 2 B-ISDN ATM Adaptation Layer Functional Description I .36 3 B-ISDN ATM Adaptation Layer (AAL) Specification I .36...

Ngày tải lên: 14/08/2014, 09:20

... MPEG-2. .mp3 The file extension for audio data encoded in the Moving Picture Experts Group (MPEG) Audio Layer 3 format. See also MPEG -3. 32 1 .mp3 74570c 13. qxd 9/11/07 12:25 PM Page 32 1 MMR (Modified ... 1 1 0 0 1 0 0 1 1 1 0 Baseband Digital Signal Modulated MLT -3 Signal 31 3 MMF (MultiMode Fiber) 74570c 13. qxd 9/11/07 12:25 PM Page 31 3 and the International Electrotechnical Co...

Ngày tải lên: 14/08/2014, 09:20

... Rate OTU-1 2.666 Gbps OC-48/STM-16 2.488 Gbps OTU-2 10.709 Gbps OC-192/STM-64 9.9 53 Gbps OTU -3 43. 018 Gbps OC-768/STM-256 39 .8 13 Gbps G.709 also specifies an interface for 10 GbE clients, utilizing the ... backbone, blocking, and call center. NMT 900 (Nordic Mobile Telephone 900 MHz) 33 8 74570c14.qxd 9/11/07 12:26 PM Page 33 8 OTU (Optical Transport Unit) In an optical transport n...

Ngày tải lên: 14/08/2014, 09:20

... or time zone, based on the originating address (i.e., telephone +3V 0 -3V +3V 0 -3V +3V 0 -3V 1 cps, 1 Hz 2 cps, 2 Hz 3 cps, 3 Hz 1 second 441 single number dialing 74570c19.qxd 9/12/07 12:41 ... audio range of 3 kHz and equal or less than the lower limit of the infrared light range of 30 0 GHz.At the low end of the range is extremely low frequency (ELF) radio, which operates at 30 30...

Ngày tải lên: 14/08/2014, 09:20

... of data.The 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 (Time-Division ... into a T3 using an M 13 multiplexer), and 3) prevent the appearance of the 0x7e flag character within an HDLC frame (4-zero suppression). See also bit, bit stream, bi...

Ngày tải lên: 14/08/2014, 09:20