24 Installation Guide
Optical Ethernet to SCADA (optional)
Use 62.5/125 μm or 50/125 μm multimode optical fibers to connect to the 100Base-FX optical Ethernet
interface on the sensor. Before connecting the optical transceiver, see Appendix A of this manual for
more information on the optical characteristics. Make sure optical power levels and wavelength are
within the specified range.
NOTICE
Since ST connectors do not fit through the cable glands, the optical fiber must be
terminated once it has been pulled through the cable gland.
When using the optical Ethernet port, the copper-based SCADA Ethernet port must
not be used.
Wiring the alarm relays (dry-contact)
Relay contacts can be used in normally closed or normally open mode by using the appropriate pins
on the connector. Use NC and C for normally closed operation and use NO and O for normally open
operation.
WARNING
All relays shall be connected to the same power source.
NOTICE
The current on the relay should not exceed 3 A.
Inductive loads must be protected with voltage suppressors. A derating on current
must be applied to protect the contacts.
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