... Class Hosts per Network
A 1.0.0.1 to 126. 255 . 255 . 254 126 16,777,214
B 128.0.0.1 to 191. 255 . 255 . 254 16,384 65, 534
C 192.0.0.1 to 223. 255 . 255 . 254 2,097, 152 254
D Reserved for multicast purposes
E ... J-carrier.
J -5 The fifth level in the Japanese J-carrier digital hierarchy. J -5 runs at a signaling rate of 56 5.148 Mbps
in support of 7,680 DS-0 channels which maps J -5 i...
... VCSEL, and wavelength.
Figure M-3
Coating OD: 250 µ Cladding OD: 1 25 µ
Core OD: 62 .5/ 50 µ
62 .5 µ
50 µ
MMF (MultiMode Fiber) 314
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MS-DOS (MicroSoft Disk Operating ... Block
has a width of 1. 15 GHz in the frequency bands of 27 .5 28. 35 GHz, 29.1–29. 25 GHz, and 31.0–31. 15
GHz.The B Block has a width of 150 MHz in the spectrum between 31. 1...
... Rate Metric Gauge
1 .54 4 Mbps (T1)
2.048 Mbps (E-1) 24 18,000 ft. 0 .5 mm 5. 5 km
1 .54 4 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 ... core diameter of either 50 µ or
62 .5 , using a wavelength of 850 nm.The modal bandwidth ranges from 160 MHz/km to 50 0 MHz/km,
and maximum distance ranges from 220 meters to 55 0 met...
... and bypass the point of failure. See also LAN, node, and Token Ring.
55 beaconing
7 457 0c02.qxd 9/11/07 12:18 PM Page 55
7 457 0c02.qxd 9/11/07 12:18 PM Page 76
bill only for airtime, regardless ... bit
Bridge
< 50 0 m
< 2 .5 km
Terminator
busy hour 74
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Figure C-1
Contemporary coax-based CATV systems commonly support aggregate raw bandwidth o...
... 1 .54 4 1 .54 4
30 2.048
1C 48 3. 152
2 96 6.312 6.312
120 8.448 7.786
3 480 34.368 32.064
672 44.736
3C 1,344 91. 053
4 1,440 97.728
1,920 139.268
4,032 274.176
5 5,760 400. 352
7,680 56 5.148 56 5.148
6 ... with each field
given a value in decimal notation of 0– 255 , the range expressed by a single octet in binary notation (2
8
=
256 , or 0– 255 ).This format sometimes is referred...
... there is an abrupt change in the chemical com-
OTU (Optical Transport Unit) 354
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contemporary operator mans a PBX console or perhaps a complex traffic service ... network unit (ONU) See ONU.
optical-optical-optical (OOO) See OOO.
operator 350
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over the air (OTA) 1. Referring to broadcast airwave radio and...