The 10/100M2 features multiple, user-selectable link fault detection modes for quick fault detection and isolation. These modes operate independently of the network management and monitor the state of the cabling hardware.Link-Segmentation (LS): the normal (default) mode where the UTP and fiber ports establish their links to other connected devices independently of each other.Link-Propagation (LP): in this mode (also known as link-loss-carry-forward), a link-out from the UTP port is generated only when a link-in to the fiber port is present, and a link-out from the fiber port is generated only when a link-in to the UTP port is present. In LP mode, a cable or link fault is propagated in a domino fashion to downstream or upstream connected equipment, enabling rapid fault detection.Asymmetrical Link Propagation (ALP): ALP has two modes of operation: copper-to-fiber and fiber-to-copper. In the 'copper-to-fiber' mode, a fault on the UTP port will propagate across the fiber to attached link partner, but not to the UTP port of the link partner. A fault on the fiber will not propagate at all. In the 'fiber-to-copper' mode, a fault on the UTP port will not propagate through to the attached UTP device. In this mode the "domino" effect is limited.Remote-Fault-Detection (RFD): in RFD+LS mode, each port transmits a link signal only when receiving a link. As a result, link faults (no link received) are looped-back and can be reported to the network core.Remote Fault Detection + Link Propagate (RFD+LP): in RFD+LP mode, link faults are propagated from the fiber to the UTP port and also looped-back to the fiber port. This mode provides rapid reporting of any cable faults to the network core.Symmetrical-Fault-Detection (SFD): SFD mode is similar to the RFD mode and provides a loop-back of a fiber link fault. When connecting two SFD configured converters back-to-back, this mode facilitates fiber or UTP fault notification to both ends of the network.