Features and Benefits  10/100BaseT(X) auto-negotiation and auto-MDI/MDI-X  Link Fault Pass-Through (LFP) Power failure alarm by relay output (LV model only)  -40 to 85°C operating temperature range  Redundant dual DC power inputs  Integrated high-reliability power supply eliminates the need for external power transformer Compliant with EN 50121-4 and essential sections of EN 50155   Introduction The PTC-101 Ethernet-to-fiber media converters convert from 10/100BaseT(X) to 100BaseFX. Models are available with either SC, ST, or LC connectors. The PTC-101 converters eliminate the need for additional wiring, and support IEEE 802.3 and IEEE 802.3u/x protocols with 10/100M, full/half-duplex, and MDI/MDI-X auto-sensing to provide a total solution for your industrial Ethernet networks. The PTC-101 is compliant with the essential sections of EN 50155, covering operating temperature, power input voltage, surge, ESD and vibration.