Siemens 6GK5101-1BB00-2AA3 Industrial Ethernet Switch

Siemens 6GK5101-1BB00-2AA3 SCALANCE X101-1 is an unmanaged industrial Ethernet media converter that links a copper 10/100 Mbps Ethernet port to a 100 Mbps multimode fiber segment. It provides one 10/100 Mbps RJ45 port and one 100 Mbps multimode BFOC fiber port, enabling quick extension of networks where fiber reach is required. For visibility and fault tracing, LED diagnostics monitor link status and activity, while an integrated error signaling contact with a Set pushbutton supports quick fault signaling; the unit also supports a redundant power supply for increased reliability and PROFINET-compliant securing collars for secure mounting in industrial enclosures. As part of the SCALANCE X101 family, this spare-part variant (X101-1) is designed for plug‑and‑play deployment in harsh industrial environments, delivering deterministic, unmanaged connectivity suitable for PROFINET I/O and other industrial Ethernet applications. The 6GK5101-1BB00-2AA3 designation identifies this exact model used in Siemens catalogs and compatible with Siemens Industry equipment, offering a simple copper-to-fiber bridge without managed switching features.