Cabletron Systems TRXI-24 - Manual (Page 45)

INSTALLATION
Page 3-16
3.8.5 Connecting a Fiber Optic Link Segment to the TPIM-F2
or TPIM-F3
When connecting a fiber optic link segment to the TPIM-F2 or
TPIM-F3 keep the following in mind:
• If you are connecting a fiber optic link segment with ST
connectors to a TPIM-F2 with ST ports, keep in mind that ST
connectors attach to ST ports much like BNC connectors attach
to BNC ports. The connector is inserted into the port with the
alignment key on the connector inserted into the alignment slot
on the port. The connector is then turned to lock it down.
• The physical communication link consists of two strands of
fiber optic cabling: the Transmit (TX) and the Receive (RX). The
Transmit strand from the applicable port on the module will be
connected to the Receive port of a fiber optic device at the other
end of the segment. For example, TX of the applicable port on
the module will go to RX of the other fiber optic device. The
Receive strand of the applicable port on the module will be
connected to the Transmit port of the fiber optic device. For
example, RX of the applicable port on the module will go to TX
of the other fiber optic device.
It is recommended that you label the fiber optic cable to
indicate which fiber is Receive and which is Transmit. When
you buy fiber optic cable from Cabletron Systems, it is labeled
so that: at one end of the cable, one fiber is labeled 1, and the
other fiber is labeled 2. This pattern is repeated at the other
end of the cable. If you did not purchase your cable from
Cabletron Systems, be sure you have labeled your cable in the
manner described above.
Caution: Do not touch the ends of the fiber optic strands, and do not let
the ends come in contact with dust, dirt, or other contaminants.
Contamination of the ends can cause problems in data transmissions. If
the ends become contaminated, clean them with alcohol using a soft,
clean, lint free cloth.