Chapter 2 Modules
Indicator
Color
Meaning
Flash
Status
Descrip-
tion
the reverse
optical
interfaces
from all
fibers to FS.
second:
One flash
means link
0 is normal.
Off when
the link is
unavailable.
The forth
second:
Two flashes
mean the
1st link
is normal.
Off when
the link is
unavailable.
The seventh
second:
Three
flashes
mean the
2nd link
is normal.
Off when
the link is
unavailable.
The tenth
second:
Four flashes
mean the
3rd link
is normal.
Off when
the link is
unavailable.
The
thirteenth
second:
five flashes
mean the
4th link is
normal and
Off means
the 4th is
unavailable.
The
sixteenth
second:
Six flashes
mean the
5th link
is normal.
Off when
the 5th is
broken.
Recycle
again per
18 seconds.
Off when
an error
occurs on
the 61.44M
clock.
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