20
FIBER OPTIC CONVERTERS I & II
If the network is already
operating, the Converters may
be installed in the main ring by
connecting the RJ-45 ports on
the Converters to the
appropriate Ring In and Ring
Out connectors on the MAUs, as
long as the ring is not broken for
more than five to ten seconds.
CAUTION
If the main ring is broken for
more than five to ten
seconds, the network will be
completely disabled and will
have to be restarted. Data
loss may occur.
5.
The installation is complete. See
Chapter 3 for a description of
LED operation.
4.3 Installation Between a MAU
and a Station
The Fiber Optic Converters can be
used to extend individual station
lobes.
The network should be fully planned
before installation of converters.
Refer to Section 4.1.
The Converters may be either rack-
mounted or placed on a she!f or
table.
Follow these steps to install the Fiber
Optic Converter between a MAU
and a station.
1.
Decide which lobes require
converters.
2.
Refer to Figure 4-4 to determine
the maximum copper and
fiberoptic cable lengths.
A
3300 feet
maximum
Copper
Copper
Optical
PC
LT221A
LT221A
MAU
B
Figure 4-4. Maximum Cable Lengths.
