Features:
- Five RJ45 links connect local 10/100 Mbit/s Industrial Ethernet devices.
- Three single-mode SC ports extend 100 Mbit/s segments over distances up to 26 km.
- Managed PROFINET, VLAN, diagnostics, and ring functions organize traffic and network recovery.
Copper frames entering Siemens 6GK5205-3BF00-2AB2 can be forwarded to the appropriate optical or electrical destination without changing the connected device protocol.
Dedicated service interfaces on 6GK5205-3BF00-2AB2 preserve all five RJ45 device ports for process-network connections.
The two DC input paths of 6GK5205-3BF00-2AB2 feed one switch while monitoring exposes the loss of either source.
The Siemens 6GK5205-3BF00-2AB2 SCALANCE XB205-3LD Managed Layer 2 Industrial Ethernet Switch may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6GK5205-3BF00-2AB2 SCALANCE XB205-3LD Managed Layer 2 Industrial Ethernet Switch Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Device Traffic and Local Access
- Device links: Five RJ45 sockets negotiate 10 or 100 Mbit/s with copper network partners.
- Management path: A separate RJ45 interface carries the documented management connection.
- Console path: The RJ11 console connector supports local service access without using a device port.
- Link adaptation: Autonegotiation and autocrossover align speed, duplex, and pair assignment with the connected peer.
Single-Mode Optical Paths
- Optical group: Three SC interfaces carry switched Ethernet over single-mode glass fiber.
- Link rate: Each optical connection operates at 100 Mbit/s.
- Distance limit: A complete optical path may extend to 26 km when its attenuation budget remains within specification.
- Commissioning check: Fiber type, connector condition, transmit/receive pairing, and remote optics must all match.
Segmentation and Redundant Paths
- VLAN: Port membership separates selected traffic while the switch remains a Layer 2 device.
- MRP family: MRP and MRP-I assign the documented roles in PROFINET media-redundancy structures.
- Spanning tree: STP and RSTP prevent an unintended Ethernet loop by controlling alternate links.
- Protocol boundary: The device forwards Ethernet frames but does not replace a Layer 3 router.
Supply Continuity and Fault Reporting
- Redundant feeds: Two 24 V DC inputs can maintain the switch when one healthy source remains.
- Signaling contact: The floating output reports configured supply, link, or device faults to external monitoring.
- Front indicators: LED states identify power and port conditions before detailed management diagnostics are opened.
- Cabinet installation: IP20 construction requires installation inside a suitable industrial enclosure.