2. Each user with a dedicated 1mbps line.
T1 line
1.5 Mbps www.intelletrace.com
The E1 has a greater line capacity. E1 is the European standard and runs at 2.084 Mbps. The American T-1 standard runs at a capacity of 1.544 Mbps.
T1 line
A leased line with a bandwidth of 2 Mbps (megabits per second) provides a dedicated and consistent download speed of up to 2 Mbps for data transfer. This means that users can expect to download data at a rate of 2 megabits per second under optimal conditions. However, actual speeds may vary slightly due to factors like network congestion or equipment limitations.
That will depend A LOT on what the users want to do. For instance, if you read a mainly-text website (for example: Wikipedia), and only open a new page every few minutes, you use so little bandwidth that you can probably support HUNDREDS of such users on 2 Mbps.On the other extreme, if each and every user is watching movies, they use a fairly large bandwidth - and you can only support a few users. Here are some reference values which I found for typical YouTube movies - I am not sure how accurate they are, and the actual bandwidth can DEFINITELY vary: 480p: 1 Mbps 360p: 0.5 Mbps 240p: 0.25 Mbps So, according to these numbers, if just TWO users watch YouTube videos at 480p (which is a fairly decent quality, but still LESS than HD), they will use up the entire bandwidth.
T3 is 44.736 Mbps (megabytes per second) both ways.
Digital Subciber Line
appale
In North American a T1 line carries signals at 1.544 Mbps (24 channels at 64Kbps). E1 is the European format for digital transmission. E1 carries signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling). T1 and E1 lines may be interconnected for international use.
Leased lines are basicaly a data link / line, which is dedicated for data transmission between registered end to end network for enterprise users where as, PRI (Primary Rate Interface) is one of the service which is used by ISDN connection .It uses channel wise data transmission between the networks.The Primary Rate Interface consists of 23 B-channels and one 64 Kpbs D-channel using a T-1 line or 30 B-channels and 1 D-channel using an E1 line. Thus, a Primary Rate Interface user on a T-1 line can have up to 1.544 Mbps service or up to 2.048 Mbps service on an E1 line.