Determines which end of the T1 interface provides
clocking. The no version uses the default value, line.
Options
channel—One or more individual
T1 channels, ranges of T1 channels, or combination of individual channels
and ranges, in the range 1–28 (no spaces); for example, 3,7-15,19-13,27
line—Interface transmits data from a clock recovered
from the line’s receive data stream
internal—Interface transmits data using its internal
clock. You must specify one of the following for internal clocking:
module—Internal clock is from the line module itself
chassis—Internal clock is from the configured system
clock