Siemens 6GK1901-1BB11-2AA0 — SIMATIC NET component

Genuine Siemens part intended for SIMATIC NET / Industrial Ethernet applications. The exact role depends on system configuration — this unit may serve as a communication/connector component. Verify part number 6GK1901-1BB11-2AA0 against your equipment documentation and compatibility lists before installation. Installation and diagnostics should be performed by qualified personnel.