Product Characteristics
4.3 SCALANCE X101-1FL
Signaling Contact
The signaling contact is connected to a 2-pin plug-in terminal block. The signaling contact
(optical relay contact) is a floating switch with which error/fault states are signaled by contact
separation.
Figure 4-11 Signaling contact SCALANCE X101-1FL Figure 4-12 Connector pinout
Pin number Pinout
Pin 1 F1
Pin 2 F2
The following errors/faults can be signaled by the signaling contact:
• The failure of a link at one of the two monitored ports.
• The failure of one of the two redundant power supply units.
Connecting or disconnecting a communication node at an unmonitored port does not cause
an error message.
The signaling contact remains activated until the error/fault is eliminated or until the current
status is applied as new desired status by the button.
When turning off the device, the signaling contact is always activated (open).
Industrial Ethernet Media Converters SCALANCE X-100 Series
Commissioning Manual, 07/2008, A2B00051521A
4-19
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