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T-Carrier Definition
By: U. S. Govt
T-carrier: The generic designator for any of several digitally multiplexed telecommunications carrier systems. Note 1: The designators for T-carrier in the North American digital hierarchy correspond to the designators for the digital signal (DS) level hierarchy. See the associated table below. Note 2: T-carrier systems were originally designed to transmit digitized voice signals. Current applications also include digital data transmission. Note 3: If an "F" precedes the "T", a fiber optic cable system is indicated at the same rates. Note 4: The table below lists the designators and rates for current T-Carrier systems. Note 5: The North American and Japanese hierarchies are based on multiplexing 24 voice-frequency
channels and multiples thereof, whereas the European hierarchy is based
on multiplexing 30 voice-frequency channels and multiples thereof. See table below.
| T-Carrier Systems
| North American
| Japanese
| European (CEPT)
|
|---|
| Level zero (Channel data rate) |
64 kb/s (DS0) |
64 kb/s |
64 kb/s |
| First level |
1.544 Mb/s (DS1) (24 user channels) |
1.544 Mb/s (24 user channels) |
2.048 Mb/s (30 user channels) |
| (Intermediate level, North American Hierarchy only) |
3.152 Mb/s ....[MORE]
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| T-carrier - Wikipedia, the free encyclopedia T1" now means any data circuit that runs at the original 1.544 Mbit/s line rate. ... Initially, T1 used Alternate Mark Inversion (AMI) to reduce frequency bandwidth ...
[see more on T-carrier - Wikipedia, the free encyclopedia]
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| Digital Signal 1 - Wikipedia, the free encyclopedia E1 is used in place of T1 outside of North America, Japan, and South Korea. ... The name T1 came from the carrier letter assigned by AT&T to the technology. ...
[see more on Digital Signal 1 - Wikipedia, the free encyclopedia]
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| HowStuffWorks "How does a T1 line work?" A T1 line is a fiber optic line that can carry roughly 60 times more data than a normal residential modem. Read about the T1 line and how it is used.
[see more on HowStuffWorks "How does a T1 line work?"]
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| T1: Dedicated T1 Service Providers | Business.com Find a T1 internet access provider to get a high speed connection or digital signal for your office with a dedicated T1 line. Featured Listings ...
[see more on T1: Dedicated T1 Service Providers | Business.com]
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