2. FO connection
2.1 Basic information
Hazardous voltage!
Risk of electric shock.Failure to observe this warning can result in death or serious
injury.
→The connection must be carried out exclusively by suitably qualified personnel.
→Prior to opening: Disconnect both system and device from the mains.
→Observe basic information contained in this chapter.
→Observe safety instructions contained in the operation instructions pertaining
to the actuator.
Eye damage caused by open fibre optic cable ends!
→NEVER look directly into open cable ends or FO cable connections.
Connection or receive problems when ignoring the installation instructions!
→Only use FO cable connection (connector types) with the wiring techniques in-
dicated in these instructions.
→Only mount connector types with locking mechanisms in the defined position.
→Protect unused FO cable connections against contamination or dust with protec-
tive caps/plugs supplied by the factory.
→Connect incoming FO cable with the optical receiver, the outgoing FO cable
with the optical sender. NOT vice versa!
→Do NOT kink FO cables! Observe bending radius of cable manufacturer.
Cable and wire types
Table 1: Cables and wires according toDIN VDE 0888 part 3:
62.5 µm or 50 µmCore diameter
62.5/125 µm Multi-mode graded-index fibre
50/125 µm glass fibre
Fibre
62.5/125 µm: 2,600 m
50/125 µm: 1,400 m
Range
Recommendation: < 3.0 dB/km
Damping coefficient
Remove outer sheathing of FO cable at a length of approx. 25 cm to enable ring
wiring in the terminal compartment.
Figure 1: Plug type FSMA
Controls mounted to wall bracket
In the event of heavy vibration of the valve, we recommend mounting the actuator
controls separately from the actuator on a wall bracket. For information about the
wall bracket, refer to operation instructions for the actuator.
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FO connection
