What are the differences between a channelized E1 interface and an unchannelized E1 interface of an AR router

The differences between a channelized E1 interface and an unchannelized E1 interface of an AR router are described as follows:

- An unchannelized E1 interface works as an interface not divided by timeslots, whose bandwidth is 2.048 Mbit/s.
- For a channelized E1 interface, all the 31 timeslots can be randomly divided into multiple groups (channel sets). Each group is corresponding to a separated channel whose rate can be calculated as follows: n x 64 kbit/s, in which n ranges from 1 to 31.
- For a partially channelized E1 interface, the 31 timeslots can be randomly bundled into a channel whose rate can be calculated as follows: n x 64 kbit/s, in which n ranges from 1 to 31.

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