Before you configure a channelized T3 interface,
verify the following:
You have installed the line module and the I/O module
correctly.
Each configured line module is able to transmit data to
and receive data from your switch connections.
For more information about installing line modules
and I/O modules, see the ERX Hardware
Guide.
You should also have the following information
available:
Framing type, clock source, cable length, and the loopback
method for each T3 controller
Framing type and clock source for each T1 channel
Timeslot mapping and line speed for each fractional T1
channel
HDLC channel information, such as data inversion information,
cyclic redundancy check (CRC) type, idle character, maximum transmission
unit (MTU), and maximum receive unit (MRU)
