Siemens SCALANCE X100 Modules: 6GK5104-2BB00-2AA3

Technical Dossier

Product Details And Specifications

Siemens SCALANCE X100 Series Technical Notes

The Siemens SCALANCE X100 series represents one of the most widely deployed unmanaged industrial Ethernet switch families in global heavy industry. Installed across petrochemical complexes, nuclear power facilities, offshore platforms, refinery control networks, and large-scale manufacturing automation cells, the X100 series provides deterministic Layer 2 switching for PROFINET, PROFIBUS-over-Ethernet, and standard IEEE 802.3 traffic. Its DIN-rail form factor, wide operating temperature range (−40 °C to +70 °C on select variants), and 24 VDC redundant power input make it a default specification in Siemens TIA Portal-based architectures and legacy SIMATIC NET environments alike. The series is fully compatible with STEP 7, TIA Portal V13 and above, and integrates with SINEMA Network Manager for topology visualization.

The Evolution of SCALANCE X100 Architecture

The SCALANCE X100 product line was introduced in the early 2000s as Siemens' response to the growing demand for ruggedized, unmanaged Ethernet switching in process automation. The first-generation units (6GK5 101-x / 6GK5 102-x) offered 5- and 8-port 10/100 Mbit/s copper configurations with basic LED diagnostics. These were succeeded by the 6GK5 104-x and 6GK5 108-x variants, which introduced expanded port counts, fiber uplink options (multimode and singlemode SC/BFOC), and improved EMC shielding for use in high-interference environments such as drive cabinets and motor control centers.

The X100 architecture is fundamentally store-and-forward, operating at wire speed for 100 Mbit/s full-duplex traffic. It does not support SNMP, VLAN, or QoS — these functions are delegated to the managed SCALANCE X200, X300, and XM400 families. This architectural boundary is a critical compatibility consideration when integrating X100 units into networks that require traffic prioritization for real-time PROFINET IRT communication. For IRT-capable topologies, Siemens mandates migration to SCALANCE X200 or XC200 series.

As of 2024, the majority of the 6GK5 10x-0xxx-0xxx first-generation SKUs have been declared End-of-Sale (EoS) by Siemens, with End-of-Support (EoSupport) timelines extending to 2028–2030 depending on variant. Plants operating on 10–20 year maintenance cycles — typical in nuclear, chemical, and oil & gas sectors — require continued access to spare units and tested replacements beyond the OEM support window.

SCALANCE X100 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified SCALANCE X100 series module range. Each entry reflects a distinct hardware configuration. SKUs are classified by port type and uplink media.

Copper Port Variants (RJ45, 10/100 Mbit/s):

• 6GK5101-1BB00-2AA3: 5-port unmanaged switch, all RJ45, 24 VDC, DIN-rail, compact housing
• 6GK5101-1BB10-2AA3: 5-port unmanaged switch, RJ45, extended temperature −40 °C to +70 °C
• 6GK5105-1BB00-2AA3: 5-port unmanaged switch, RJ45, 24 VDC, push-pull M12 connector option
• 6GK5108-0BA00-2AA3: 8-port unmanaged switch, all RJ45, standard DIN-rail, 24 VDC
• 6GK5108-0BA10-2AA3: 8-port unmanaged switch, RJ45, extended temperature variant
• 6GK5104-2BB00-2AA3: 4-port RJ45 + 2-port multimode fiber (SC), 100 Mbit/s, DIN-rail, 24 VDC — the subject SKU of this listing

Fiber Uplink Variants (Multimode / Singlemode):

• 6GK5104-2BB10-2AA3: 4-port RJ45 + 2-port multimode fiber, extended temperature
• 6GK5104-2BC00-2AA3: 4-port RJ45 + 2-port singlemode fiber (SC), 15 km reach
• 6GK5104-2BC10-2AA3: 4-port RJ45 + 2-port singlemode fiber, extended temperature
• 6GK5108-2BB00-2AA3: 6-port RJ45 + 2-port multimode fiber, 8-port total, DIN-rail
• 6GK5108-2BB10-2AA3: 6-port RJ45 + 2-port multimode fiber, extended temperature
• 6GK5108-2BC00-2AA3: 6-port RJ45 + 2-port singlemode fiber, 15 km reach

BFOC / Industrial Fiber Variants:

• 6GK5104-2BD00-2AA3: 4-port RJ45 + 2-port multimode BFOC fiber connector, 100 Mbit/s
• 6GK5104-2BD10-2AA3: 4-port RJ45 + 2-port multimode BFOC, extended temperature
• 6GK5108-2BD00-2AA3: 6-port RJ45 + 2-port multimode BFOC, 8-port total
• 6GK5116-0BA00-2AA3: 16-port unmanaged switch, all RJ45, 24 VDC, DIN-rail, high-density panel applications

Sourcing Hard-to-Find & Obsolete SCALANCE X100 Parts

Customers in the nuclear, chemical, and oil & gas sectors with 10–25 year asset lifecycles are encouraged to contact DriveKNMS for long-term supply agreements covering the full SCALANCE X100 catalog.

Quality Control for the SCALANCE X100 Range

Each SCALANCE X100 unit processed by DriveKNMS undergoes a structured inspection and functional test protocol prior to dispatch:

• Visual inspection: Housing integrity, connector pin condition (RJ45 and fiber SC/BFOC ports), DIN-rail clip mechanism, LED indicator lens condition
• Power-on test: 24 VDC dual-input energization, PWR LED confirmation, fault relay output verification
• Port-level traffic test: Each RJ45 port tested at 100 Mbit/s full-duplex using calibrated Ethernet traffic generator; frame error rate must be 0% over a 60-second burst
• Fiber link test: Optical power level measurement on all SC and BFOC ports using optical power meter; attenuation must be within Siemens-specified TX/RX window
• Thermal soak: Units operated at rated load for minimum 30 minutes; thermal imaging used to identify abnormal component heating on backplane or power section
• Firmware and label verification: Hardware revision and firmware version recorded and matched against Siemens product lifecycle database