Configuring E1 Cards
Introduction to E1
Introduction to E1
An E1 line supports 32 64Kbps channels, each of which can be used to transmit and receive data or digitized voice. The line uses framing and signaling to achieve synchronous and reliable transmission. The most common configurations for E1 lines are PRI and unchannelized. (For information about provisioning your E1 line for use with the TAOS unit, see Appendix A, “Provisioning the Switch.”)
ISDN Primary Rate Interface (PRI)
In Europe, an E1/PRI line typically supports 30 B channels and one D channel. PRI configurations are used to receive multiple, simultaneous ISDN calls from
Nailed or unchannelized E1
An unchannelized E1 line can be used for nailed connections such as to a Frame Relay network. In such cases the configuration is static, and the TAOS unit treats the E1 line as if it were a single connection at a fixed speed, without individual channels.
Typically, when you pay your telephone company for a leased (nailed) line, you pay more for higher bandwidth. Anything in the range of 0bps to 2.048Mbps can be delivered on an E1 line, and provisioned at some 64Kbps fraction of the full E1 bandwidth.
Overview of E1 configuration
Table
For complete information about the associated parameters, see the APX 8000/MAX
TNT/DSLTNT Reference.
Table
Section | Description of task | Associated parameters |
|
|
|
“Understanding configuration | Before configuring your E1 line, gather the | N/A |
requirements” on page | necessary information from your E1 service |
|
| provider. |
|
|
|
|
“Making a profile the working | Before you can edit a profile, you must make | N/A |
profile” on page | it the working profile. |
|
|
|
|
“Assigning names to E1 line | Assign a name to the E1 profile. | Name |
profiles” on page |
|
|
|
|
|
“Enabling a line” on page | Make a line available for use. | Enabled |
|
|
|
APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide |
