3Com 3031 Command Reference Manual page 171

Fundamental CE1/PRI Interface Configuration Commands 171
The system will automatically create a serial interface after the operation of
timeslot bundling on the interface. This serial interface has the same logic features
of ISDN PRI interface. The serial interface is numbered in the form of serial
number:15. Where, number is the maximum serial interface number plus 1.
Only one timeslot bundling mode can be supported on one CE1/PRI interface
during a time period. In other words, this command cannot be used together with
the channel-set command.
For a related command, see channel-set.
Example
Bundle the timeslots 1, 2, and 8-12 of the CE1/PRI interface into a pri-set.
[3com-E1 3/0/0]pri-set timeslot-list 1,2,8-12
using Syntax
using { ce1 | e1 }
undo using
View
CE1/PRI interface view
Parameter
e1: In E1 mode
ce1: In CE1/PRI mode
Description
Using the using command, you can configure the operating mode for a CE1/PRI
interface. Using the undo using command, you can restore the default operating
mode.
By default, the CE1/PRI interface is working in CE1/PRI mode.
A CE1/PRI interface can work in either E1 mode (also called non-channelized
mode) or CE1/PRI mode (that is, channelized mode).
A CE1/PRI interface in E1 mode equals an interface of 2 Mbps data bandwidth, on
which, no timeslots are divided. Its logic features are the same like those of a
synchronous serial interface. When working in CE1/PRI mode, it is physically
divided into 32 timeslots numbered from 0 to 31. Among them, timeslot 0 is used
for transmitting the Frame Synchronization Control information. This interface can
work as either a CE1 interface or a PRI interface.
After the CE1/PRI interface is enabled to work in E1 mode by using the using e1
command, the system will automatically create a serial interface numbered serial
interface-number:0. The interface-number starts from the maximum serial
interface number plus 1t.