Page 307 - Optical Switching And Networking Handbook

14_200023_Index 1/17/01 10:09 AM Page 292

292 Index

blue band wavelengths, fiberoptics, 111 costs, 217
bottlenecks in optical switching, telecom bandwidth, 107
switches, 135–136 DWDM, 219, 225, 230–231
fiberoptics, 122
SONET, 161
C transparent optical networks, 224

cable TV, DWDM advantages, 227
cabling specifications, rewiring example, 28 D
CANs (Campus Area Networks), 28
capacities data rates
DWDM, 112, 116 daily communications, 98
fiberoptics, 250 Fast Ethernet, 30
FDDI, 29
WDM wavelengths, 111–112
Gigabit Ethernet, 30
carriers, acquisitions and mergers, 165
wire categories, 29
cascading MEMS switches, 144
DCSs (Digital Cross-connect Systems), 227
categories of wire. See wire categories.
delivering multiple services, 199
channel flexibility, DWDM OADMs, 224–225
ATM over SONET, 200–201
characteristics
MANs, 202
lasers, 48
demand for bandwidth, 107, 160
LEDs, 47
demodulators, signal decoding, 34
chemicals of composition, fiberoptic cable, 38
demultiplexers, 6
circuit switching, optical systems
detectors, signal reconversion, 34
impact, 251
diameters of fiberoptics cables, 49
cladding, fiberoptics, 12
digital hierarchy speed rates, 85
CLECs (Competitive Local Exchange
digital transmission standards, 54
Carriers), fiberoptics usage, 23
directional transmission, 52
clocking systems dispersion, 36
SONET, 60, 63 dopants
synchronous transmission, 60 EDFAs (Erbium-Doped Fiber
coaxial cable, 3 Amplifiers), 121
communications, synchronous versus refractive indices, 37
plesiochronous, 84 drop in cost for bandwidth, 107
components DS-0, 57
fiberoptic systems, 33–34 DS-1, 57
vendors, 157 bit stuffing, 59
concatenation, SONET multiplexing, 71–73 synchronous transmission, 58
connections, optical switching, 134 DS-3, 57–58