The COCX-F3 line module supports the following wide area network (WAN) protocol encapsulations:
Figure 6 shows sample configuration parameters for a T3 interface configuration.
Figure 6: T3 Interface Configuration Parameters

The following sample command sequence configures a serial interface for a T3 module. See JUNOSe Physical Layer Configuration Guide, for details.
- host1(config)#controller t3 0/1
- host1(config-controll)#framing m23
- host1(config-controll)#cablelength 300
- host1(config-controll)#ds3-scramble
- host1(config-controll)#exit
- host1(config)#interface serial 0/1
- host1(config-if)#invert data
- host1(config-if)#mtu 1600
- host1(config-if)#mru 1600