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Document Conventions
FOMIM User’s Guide 1-3
1.2 DOCUMENT CONVENTIONS
The following conventions are used throughout this document:
1.3 FIBER OPTIC MEDIA INTERFACE MODULES
Cabletron Systems Fiber Optic Media Interface Modules provide a choice
of six, twelve, or eighteen ports with ST connectors.
1.3.1 Distance and Cable Type
The FOMIMs support single mode fiber optic cable for sizes such as
8.3/125
µ
m, 8.7/125
µ
m, 9/125
µ
m, 10/125
µ
m, and 12/125
µ
m. The
cable distance is dependent on the cable type and the overall system fiber
optic budget. If the system budgets and timing constraints are met, then a
distance of up to 5 kilometers is possible. You can also use 62.5/125
µ
m
multimode cable with the FOMIM, but due to greater optical loss, signal
distance is reduced to 2 km.
NOTE
Note
symbol. Calls the reader’s attention to any item of
information that may be of special importance.
!
CAUTION
Caution
symbol. Contains information essential to avoid
damage to the equipment.
Warning
symbol. Warns against an action that could result in
equipment damage, personal injury or death.
NOTE
The FOMIM-32/36/38 use 1300 nm wavelength transmitters
and receivers (not the 850 nm specified by FOIRL) and should
be used only with the Cabletron Systems Ethernet single mode
transceiver, the FOT-F3.