Juniper EX9253 Hardware Manual page 107

user@host# set wait-to-restore
user@host# set hold-off-time
10. Configure the options for the external interfaces.
a. Go to the [edit chassis synchronization interfaces external] hierarchy level.
[edit chassis synchronization]
user@host# edit interfaces external
b. Configure the frequency for the provided reference clock.
[edit chassis synchronization interfaces external]
user@host# set signal-type ( 2048KHZ |e1 | t1)
c. For BITS interface, configure options for the e1 signal type— the framing statement as g704 or
g704-no-crc, and the line-encoding statement as ami or hdb3.
[edit chassis synchronization interfaces external]
user@host# set e1-options framing (g704 | g704-no-crc)
user@host# set e1-options line-encoding (ami | hdb3)
d. For BITS interface, configure options for the t1 signal type— the framing statement as esf or sf
and the line-encoding statement as ami or b8zs.
[edit chassis synchronization interfaces external]
user@host# set t1-options framing (esf | sf)
user@host# set t1-options line-encoding (ami | b8zs)
11. Configure the options for the external clock interface output.
a. Go to the [edit chassis synchronization output interfaces external] hierarchy level.
[edit chassis synchronization]
user@host# edit output interfaces external
b. Configure all the external clock interface output options. The options include the holdover-mode-
disable statement; the minimum-quality statement, which can be set as prc, prs, sec, ssu-a, ssu-b,
minutes
time
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