Configuring the 12-Port Channelized T1/E1 Circuit Emulation PIC Operating Mode
This section contains the following topics:
T1/E1 Mode Selection
All ATM interfaces are either T1 or E1 channels within the COC3/CSTM1 hierarchy. Each COC3 can be partitioned as 3 COC1 slices, each of which in turn can be partitioned further into 28 ATM interfaces the size of a T1. Each CSMT1 can be portioned as 1 CAU4 which can be further partitioned as 84 ATM interfaces the size of an E1. All ports operate by default as T1s.
To configure the PIC mode, use the following set command, selecting either the T1 or E1 option:
set chassis fpc fpc-slot pic pic-slot framing (t1 | e1)After the PIC is brought online, 12 ct1 interfaces or 12 ce1 interfaces are created, depending on the T1 or E1 mode selection of the PIC.
Figure 50 and Figure 51 illustrate the possible interfaces that can be created on the 12-port T1/E1 Circuit Emulation PIC.
Figure 50: 12-Port T1/E1 Circuit Emulation PIC Possible Interfaces (T1 Size)

Figure 51: 12-Port T1/E1 Circuit Emulation PIC Possible Interfaces (E1 Size)

12-Port Channelized T1/E1 Circuit Emulation PIC Configuration Statements
Setting the T1/E1 Mode at the PIC Level
To set the T1/E1 mode at the PIC level, enter the following command:
Or specify the following:
After the PIC is brought online, 12 ct1 interfaces or 12 ce1 interfaces are created.
If the mode is not manually configured, then the PIC defaults to T1.
Creating an ATM Interface on a CT1 or CE1
To create an ATM interface on a CT1, enter the following command:
Or specify the following:
To create an ATM interface on a CE1, enter the following command:
Or specify the following:
The interface at-fpc/pic/port is created.
You can use the show chassis hardware command to display a list of the installed PICs.