
B-63943EN/02 8.CONNECTION TO FANUC I/O Link
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8.2.2 Connection of FANUC I/O Link by Optical Fiber Cable
The FANUC I/O Link can be extended to the maximum length of 200
m with optical fiber cables using an optical I/O Link adapter. The
length of the electrical cable connected to the optical conversion
adapter must not exceed 2 m.
In the following cases, use an optical fiber cable.
• When the cable is more than 10 meters long. When the cable is
more than 15 meters long if it is laid within the same cabinet.
• When the cable is run between different cabinets, and the
cabinets cannot be connected with each other via a ground wire
of 5.5 mm
2
or more.
If the power magnetics cabinet includes an I/O Link slave unit,
and cables are connected through a duct to the operator's panel
(as shown below), the control section I/O Link slave unit can be
assumed to be incorporated in the same cabinet.
• When there is concern that the cable is influenced by strong
noise; for example :When there is a strong electromagnetic noise
source beside the cable such as a welding machine.
When a noise generating cable such as a power cable runs for a
long distance in parallel with the cable.
External dimension of optical link adapter