8-4 Set-Up SYNAX200 Ring SYNAX200
DOK-SYNAX*-SY*-07VRS**-PR01-EN-P
8.2 Project Planning Notes
General Notes
Note the following when planning the project:
The length of the transmission path is limited. Isolating points decrease
the maximum length of a fibre-optics cable stretch.
Between transmitter and receiver either only plastic fibre-optics cables
(IKO0982 or IKO0985) or only glass fibre-optics cables (IKO0001) may be
used. There may be no change from plastic to glass or vice versa at
isolating points.
The mechanical limit values of fibre-optics cables (e.g., bend radii,
tension, cross tension, alternate bends) must be maintained.
Thermal limit values of the fibre-optics cables may not be exceeded.
Maximum Lengths of the Fibre-Optics Cables
Fibre-optics cable type Without isolating point 1 isolating point 2 isolating points
plastic fibre-optics cables 50 m 40 m 30 m
glass fibre-optics cables 500 m 400 m 300 m
Fig. 8-10: Maximum fibre-optics cable lengths
Technical Data of Available Fibre-Optics Cables
IKO0982 IKO0985 IKO0001
Outer casing polyamide (PA) polyurethane (PUR) polyurethane (PUR)
Outer diameter
2,2 mm ± 0,07 mm 6,0 mm ± 0,2 mm
3,0 mm
Bend radius > 50 mm > 80 mm > 25 mm
Bend radius in cable trailing install. -- > 100 mm --
Tension resistance - short-term 150 N 150 N 330 N
Tension resistance - continuous 100 N 100 N 110 N
Cross tension resistance 450 N/cm 450 N/cm 1000 N/cm
Alternating bend endurance
> 8000 cycles ± 90° > 100000 cycles ± 90° > 10000 cycles ± 90°
Temperature range - storage
-40 °C .. +85 °C -20 °C .. +80 °C -40 °C .. +85 °C
Temperature range - operations
-40 °C .. +85 °C -20 °C .. +80 °C -40 °C .. +85 °C
Core diameter of optic cable
1000 µm 1000 µm 200 µm
Specific opt. Damping < 250 dB/km < 250 dB/km < 8 dB/km
Fig. 8-11: Fibre-optics cable technical data
The length of the transmission
path
Mixing fibre-optics cable types
Mechanical limits
Thermal limit values
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