Cabletron Systems MICROMMAC-22T, Руководство пользователя

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CABLING
4-15
4.4.5 Connecting Fiber Optic Trunk Cable Segments
Use the TPIM-F2/ F3 to connect Fiber Optic trunk cable segments. When
connecting a fiber optic link segment to the TPIM-F2 or TPIM-F3
consider the following:
• Ensure that the alignment key on the ST (stab and twist) connector on
the fiber strand is fully inserted into the alignment slot on the port and
is locked down.
• The physical communication link consists of two strands of fiber optic
cabling. The Transmit strand at one end connects to the Receive port
at the other end, and the Receive strand at one end connects to the
Transmit port at the other end.
• It is recommended that you label fiber optic cable to indicate which
end of a fiber strand connects to a Receive port and which end connects
to Transmit port. By using such a labeling scheme, you can eliminate
the possibility of connecting devices incorrectly.
To connect a fiber optic link segment to the TPIM-F2/-F3:
1. Remove the protective plastic covers from the fiber optic ports on the
module and from the ends of the connectors on each fiber strand.
Keep the covers handy for future use.
2.
Attach a fiber strand to the MicroMMAC-T’s Receive port (labeled
RX) and attach the other fiber strand to the MicroMMAC-T’s
Transmit port (labeled TX) as shown in
Figure 4-11 .
!
CAUTION
Dust, dirt, and other contaminants on the ends of the strands
can create data transmissions problems. If the ends become
dirty, clean them with isopropyl alcohol using a soft, clean, lint
free cloth.