Siemens 6GK5204-2BB10-2AA3 Industrial Ethernet Switch
The Siemens 6GK5204-2BB10-2AA3 is a SCALANCE X204-2 managed industrial Ethernet switch. It provides 4 standard RJ45 ports (10/100 Mbit/s) and 2 additional fiber optic ports (ST connectors, multimode, 100 Mbit/s). The switch is designed for PROFINET networks and supports ring redundancy (HRP and MRP), VLAN, QoS, and SNMP. It is fanless and has a rugged metal housing for use in industrial environments.
Port Specifications
Four RJ45 ports are auto-sensing, auto-negotiating with MDI/MDI-X auto-crossover. Cable length: up to 100 m (Cat5e). Two ST fiber ports use multimode glass fiber (50/125 µm or 62.5/125 µm) with a typical range of 2 km (50 µm) or 3 km (62.5 µm). Fiber optic wavelength: 1300 nm. The total switching capacity is 1.2 Gbit/s (non-blocking).
Power Supply
The switch accepts 24V DC (18–32V) via a 4-pin terminal block (redundant inputs). Power consumption: 4.5 W typical. Reverse polarity and overvoltage protection are built-in. The unit draws 180 mA at 24V. A relay output (fault contact) indicates power loss or port failure.
Network Management
Managed features:
PROFINET conformance class B (with SNMP, LLDP, GSDML).
Ring redundancy (MRP client or manager) with recovery < 50 ms.
VLAN (IEEE 802.1Q) up to 32 groups.
IGMP snooping for multicast filtering.
Port mirroring and port statistics.
Web-based management, SSH, and SNMP v1/v2/v3.
Environmental and Mechanical
Dimensions: 45 mm width x 125 mm height x 110 mm depth. Weight: 0.5 kg. Mounting: DIN rail (35 mm) or wall mount. Operating temperature: -40°C to +70°C (industrial grade). Storage: -40°C to +85°C. Humidity: 5% to 95% non-condensing. Protection class: IP20. Vibration: 5 g (10–150 Hz), shock 15 g.
Diagnostics and LEDs
LEDs: P1 and P2 (power), R1 (redundancy), RM (ring manager), L1–L4 (link/activity for copper ports), F1–F2 (fiber ports). A 4-digit display (optional by software) shows IP address or error codes. The switch supports fault relay output (230V AC/1A).
Software and Configuration
Configuration via web browser, Command Line Interface (CLI) over Telnet/SSH, or Siemens STEP 7 / TIA Portal. The switch stores up to 1024 MAC addresses. Firmware upgradeable via TFTP or HTTP. The device supports PROFINET IO device functionality for integration into a PLC project (GSDML file provided).
Typical Applications
Used in factory automation, process control, and wind turbines where fiber optic links are needed for long distances or electrical isolation. The ring redundancy ensures continuous operation in critical networks.
Certifications
CE, UL 60950-1, cUL, ATEX Zone 2, IECEx, and marine (DNV GL). RoHS compliant. Order number: 6GK5204-2BB10-2AA3. Manual: SCALANCE X-200 (A5E00349864).
