Installation
4-19
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
Reusing Fiber-Optic Cables
Note
If you insert used fiber-optic cables in the plug-in adapter again, you must cut off
the bent lengths of both fiber-optic cable cores and install the Simplex connectors
again.
This avoids any attenuation losses due to parts of the cores of the fiber-optic
duplex cables being bent again and overstressed.
Inserting the Fiber-Optic Cables into the IM 153-2 FO
Insert the fiber-optic cables and attached plug-in adapters into the IM 153-2 FO.
Move the protruding handle of the plug-in adapter upwards.
Make sure the positioning is correct: the sender fiber-optic cable is plugged into the
recipient socket and the recipient fiber-optic cable is inserted into the sender
socket of the fiber-optic interface of the IM 153-2 FO.
If the IM 153-2 FO is the last node in the fiber-optic network, you must close the
unoccupied fiber-optic cable interface with filler connectors (the connectors are
already in place when the IM 153-2 FO is delivered).
!
Caution
Do not look directly into the opening of the optical sender diodes.
The light beam could damage your eyes.
PROFIBUS-DP
SF
BF
ON
Recipient
Sender
Recipient
Sender
Recipient
Sender
Handle
ACT
Figure 4-8
Inserting the fiber-optic cables into the IM 153-2 FO
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