Siemens 6GK5212‑2BB00‑2AA3

• Optical Ports: 2 ×100 Mbit/s multimode BFOC fiber ports
• Power Supply: Redundant 24 V DC power input
• Power Consumption: 7.92 W rated power loss
• Protection Class: IP30
• Operating Temperature: −40 °C ~ +60 °C
• Dimension: 120 mm width ×125 mm height ×110 mm depth
• Supported Protocols: MRP, HSR, PRP, SNMP v1/v2/v3, HTTPS, SNTP, DCP, LLDP
• Approval Certificates: CE, UL, cULus, ATEX Zone 2 certification for hazardous‑area deployment

Functional Features

• Full managed layer‑2 switch with PROFINET IO device function
• Integrated redundancy manager supporting ring‑network redundancy, rapid fail‑over recovery
• LED‑based comprehensive port and system diagnostics; hardware error‑signaling contact with set push‑button for external fault alarm relay driving
• VLAN, port‑security, QoS and network‑statistics monitoring functions
• Optional C‑PLUG memory card for configuration backup and quick device replacement
• Supports SNTP time synchronization for network‑wide time‑stamped fault logging

Application Scenarios

• Large‑scale factory automation main‑sub network nodes, mixed copper‑fiber industrial network topology
• Machine‑tool workshops, automobile assembly lines, process‑industry auxiliary control networks
• Long‑distance inter‑cabinet communication via multimode fiber links
• Hazardous Zone 2 industrial site communication infrastructure

Performance Parameters

• Switching bandwidth: 2.4 Gbps
• Low forwarding latency for real‑time PROFINET cyclic communication
• MTBF: 51.18 years under reference operating conditions

Material Composition

• Housing: High‑strength industrial polycarbonate‑glass‑fiber composite material
• Internal: Industrial FR‑4 PCB, fiber‑optical transceiver modules, industrial communication processor chip

Structural Characteristics

• Robust rectangular cabinet‑type housing, supports DIN‑rail mounting and wall‑mount installation
• Front‑panel arranged RJ45 ports, BFOC fiber sockets and LED diagnostic indicators
• Separate terminal blocks for dual redundant power supply and fault‑signal contact
• C‑PLUG configuration‑card slot on housing side

Working Principle

• Layer‑2 switching engine processes Ethernet frames, implements VLAN segmentation and traffic priority scheduling
• Optical‑electrical conversion by built‑in fiber transceivers completes long‑distance noise‑immune signal transmission
• Redundancy manager monitors link health status, executes automatic switch‑over when communication path breaks
• PROFINET IO stack realizes cyclic real‑time data interaction with upper‑level PLC controllers

Installation Requirements

• Install in control cabinet by DIN‑rail or wall‑mount method
• Maintain surrounding ventilation gap to guarantee heat dissipation for −40 °C ~ +60 °C full‑range operation
• Multimode BFOC fiber cables shall comply with industrial optical‑cable specifications
• Two independent 24 V DC power supplies are recommended for redundant power‑supply configuration
• Strictly implement protective‑earthing and EMC shielding wiring requirements