Fiber Optics Illustrated Dictionary - Part 89 ppt

... Overview Phase II Satellites - developmental, low-orbit, operational, longer lifespan. See OSCAR. Phase III Satellites - operational, high elliptical orbit, longer lifespan. Phase IV Satellites - operational, high geostationary or drifting geostationary orbit, long lifespan. Satellite Launch Notes AMSAT-OSCAR 1 12 Dec. 1 961 Phase-4A. 10 lb., beacon, 22-day orbit. Initiated by a...

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... Appropriate Tools Required to Intercept and Obstruct Terrorism bill (Pa- triot bill) as an alternative to the Anti-Terrorism Act 55 © 2003 by CRC Press LLC Fiber Optics Illustrated Dictionary Angstrom, angstrom (symb. - AAU, A) A unit of measurement of length ... particular di- rection, as compared to a reference standard. See iso- tropic antenna. Galileo High-Gain Parabolic Anten...

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... High Layer Information BHLI. An ATM infonnation element that uniquely identifies an application (or session layer protocol of an applica- tion). BHLI is implemented in various ways, depend- ing upon whether the codepoint is user-specific, ven- dor-specific, or ISO. broadband integrated gateway BIG. A component ofHFC (Hybrid Fiber Coax) networks that converts 136 an ATM transmission into a s...

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... that is housed in a shell that resembles the letter D. The elon- gated D-shape is a naturally keyed shape as the curved edges on one side provide a guide to the correct ori- entation for connecting the cable. D connectors, es- pecially 9-, 1 5-, and 25-pin are commonly used to interconnect computers and peripheral devices such as printers, monitors, and modems. Most AlB switch- boxes f...

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... networks. 275 © 2003 by CRC Press LLC Fiber Optics Illustrated Dictionary In the late 1970s and early 1980s, desktop comput- ers were equipped with 8" disk drives, and the ac- companying diskettes were flexible and highly sub- ject to damage. By the mid-I980s, 3.5" disk drives were becoming popular, even though the diskettes were expensive at $6.00 each, because they had a h...

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... StandardsA collection of standards describing configurations, signals, and other commu- nications parameters for various electronic connect- ing interfaces. These are often used in conjunction with ITU- T specifications for protocols and functions. Probably most familiar of the Interface Standards are EIA- 23 2- D and EIAffIA- 23 2- E, which are 1987 and 1991 updates to the decades-old RS- 23...

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... number of frequen- cies, including S-band and L-band (radar) commu- nications. H channel An lTU-T-defined transmission channel on packet-switched networks consisting of aggre- gated B channels ... data of finer precision and higher den- sities. Thin films were introduced in the late I 970s, along with the run-length-limited (RLL) data-encod- ing scheme. In the early 1990s, ffiM introduced mag...

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... of keys pressed simultaneously to perform a specific operating sys- tem function. For example, on anAmiga,Amiga-Am- iga-Ctrl reboots the machine. On an mM-compat- ible running MS-DOS, Ctrl-Alt-Del perfonns a simi- lar function. 3. A combination of keys to access text style attributes and search and replace functions in older word processing programs developed before graphical user interfaces...

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... 1 for ISDN andB-ISDN customer accesses B-ISON - Physical. Layer Specification 1.432>1993 B-ISDN user-network interface- physical layer specification 1.432.1 1996 B-ISDN user-network interface~ physicallay;er ... Association of Malay- sia. Information about this standards-setting organi- zation is available on the Web. http://wwwl.jaring.my/cornerstone/ima/about.htm 469 © 2003 by CRC Pr...

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... Supplementary Service B-ISDN (Broadband-ISDN) T1.63 7-1 999 Tl.62 9-1 999 T1.64 0-1 996 Tl.63 8-1 999 Tl.64 5-1 995 T1.66 5-1 997 T 1. 66 4-1 997 T1.65 4-1 996 Tl.64 6-1 995 T1.65 7-1 996 (R2000) B-ISDN Interworking ... Codes. ISDNANSI Standards No.Near Revised Title 520 T1.11 3-1 995 Tl.23 6-2 000 Tl.60 4-1 990 (R2000) T1.60 3-1 990 (R2000) TRNo.7 TRNo.15 TRNo.47...

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... circuit, the algebraic sum of the voltage drops equals the algebraic sum of the eleclromotive forces in that path. KIS See Knowbot Information Service. KISS Keep It Simple Stupid. Atongue-in-cheek, but all-too-relevant design and management philosophy. © 2003 by CRC Press LLC Fiber Optics Illustrated Dictionary freely between the coils. Afinely incremented ruler- like ... publicly an-...

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... for Lempel-Ziv compression exhibiting a scalable, regu- lar structure suitable for VLSI array implementation. This has practical applications for data compression in portable digital data communications and wireless local area networks (LAN s) where effective compres- sion/decompression schemes can significantly im- prove throughput and reduce connection time costs. See Ardire-Stratigakis-Hay...

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... Associated Audio ISOIIEC 13818, presented in draft form in 1993. ITU-T recommendation H.262. Similar in structure to MPEG-1, the documentation includes four parts in addition to the categories discussed in MPEG-1. MPEG-2 can address very low bit-rate applications ... both DVD and HDTV and MPEG-3 was never developed. MP3 is sometimes mistaken for MPEG-3 but MP3 actually refers to either MPEG-l...

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... of general cat- egories is listed in Appendix C and specific series topics are listed under individual entries in this dic- tionary, e.g., K Series Recommendations. See N Se- ries Recommendations chart. N-l, N-minus-one The second-to-Iast or penultimate 665 © 2003 by CRC Press LLC Fiber Optics Illustrated Dictionary parameter (temperature, pressure, force, etc.) is ex- pected to chang...

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... multiplexing SONET signals can be mul- tiplexed to make efficient use of network capacity. U.S. Europe Bit rate STS-l 51.84 Mbps STS-3 STM-l 155.52 Mbps STS-12 STM-4 622.08 Mbps STS-24 STM-8 1244.16 Mbps STS-48 STM-16 2488.32 Mbps STS-192 STM-64 9953.28 Mbps signals to form a multiplexed, switched signal that can be transported together. This is done to accom- modate broadband services such a...

Ngày tải lên: 02/07/2014, 13:20