Configure Channelized STM-1 Interfaces
You can configure up to 63 E1 channels per single-port Channelized STM-1 to E1 PIC. To specify the channel number, include it after the colon (:) in the interface name. For example, a Channelized STM-1 to E1 PIC in FPC 1 and slot 1 will have the following physical interface, depending on the media type:
e1-1/1/0:x