by Chris Short on January 4, 2005 at 10:27 am · Comments
Categorized by Networking / Related Information
| DS-0 |
64 kbps |
Basic channel of data or voice |
| Integrated Services Digital Network (ISDN) |
128 kbps |
Useable available bandwidth of a BRI |
| Basic Rate Interface (BRI) |
144 kbps |
Two 64 kbps “bearer” (voice or data) channels B) and one 16 kbps “delta” (signaling) channel (D) 2B+D. |
| T1, DS-1 |
1.544 Mbps |
24 DS-0s |
| Primary Rate Interface (PRI) |
1.544 Mbps |
23B+D |
| E1 |
2.048 Mbps |
32 DS-0s |
| DS-1c |
3.152 Mbps |
Two DS-1s |
| T2, DS-2 |
6.312 Mbps |
96 DS-0s |
| E2 |
8.448 Mbps |
Four E1s |
| 10BaseT Ethernet |
10 Mbps |
|
| E3 |
34.368 Mbps |
16 E1s |
| T3, DS-3 |
44.736 Mbps |
672 DS-0s |
| OC-1, STS-1 |
51.84 Mbps |
Optical Carrier (OC), SONET (STS) |
| 100BaseT or Fast Ethernet |
100 Mbps |
|
| OC-3, STS-3 |
155.52 Mbps |
3 Optical Carriers |
| OC-12, STS-12 |
622.08 Mbps |
12 Optical Carriers |
| OC-48 |
2.488 Gbps |
48 Optical Carriers |
| OC-96 |
4.976 Gbps |
96 Optical Carriers |
| OC-192 |
10 Gbps |
192 Optical Carriers |
| OC-255 |
13.21 Gbps |
255 Optical Carriers |
|
| Bit |
(b) |
Building block of all digital data. 0 or 1 are only two possible values. |
| Byte |
(B) |
8 bits or 1 character. |
| Kilobit |
(kb or Kb) |
1,024 (K) or 1,000 (k) bits. Dependent upon implementation. |
| Kilobyte |
(KB or kB) |
1,024 (K) or 1,000 (k) bytes |
| Megabit |
(Mb) |
1,048,576 (M) or 1,000,000 bits |
| Megabyte |
(MB) |
1,048,576 (M) or 1,000,000 bytes |
| Gigabit |
(Gb) |
1,073,741,824 (G) or 1,000,000,000 bits |
| Gigabyte |
(GB) |
1,073,741,824 (G) or 1,000,000,000 bytes |
| Terabit |
(Tb) |
1,099,511,627,776 (T) or 1,000,000,000,000 bits |
| Terabyte |
(TB) |
1,099,511,627,776 (T) or 1,000,000,000,000 bytes |
| Petabit |
(Pb) |
1,125,899,906,842,624 bits |
| Petabyte |
(PB) |
1,125,899,906,842,624 bytes |
