Siemens SCALANCE X-400 Modules – 6GK5416-4GS00-2AM2

Technical Dossier

Product Details And Specifications

Siemens SCALANCE X-400 Series Technical Notes

The Evolution of SCALANCE X-400 Architecture

The SCALANCE X-400 platform was introduced by Siemens in the mid-2000s as a successor to the SCALANCE X-300 series, addressing the growing demand for modular, high-port-density switches in industrial automation. Early variants such as the 6GK5408-2FD00-2AA2 established the base chassis design with fixed copper and SFP expansion slots. Subsequent hardware revisions introduced support for PROFINET IRT (Isochronous Real-Time), enabling sub-millisecond cycle synchronization required by motion control applications.

The architecture evolved through three identifiable generations: the initial release supporting 100 Mbps Fast Ethernet across all expansion modules; a second generation introducing Gigabit uplink modules (1000BASE-SX/LX) for backbone aggregation; and the current generation incorporating dual-homing redundancy managers and enhanced cybersecurity features aligned with IEC 62443. The 6GK5416-4GS00-2AM2 belongs to this mature generation, functioning as a 16-port Gigabit SFP expansion module for the X-400 chassis, supporting single-mode and multi-mode fiber configurations via interchangeable SFP transceivers.

Compatibility note: X-400 expansion modules are chassis-specific. Modules designed for the 6GK5408 base unit are not interchangeable with the 6GK5416 chassis without verification of backplane revision. Engineers migrating from X-300 to X-400 must account for changed SNMP MIB structures and updated SINEMA Remote Connect integration requirements.

SCALANCE X-400 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly deployed modules within the SCALANCE X-400 series. Classified by functional category:

Base Chassis / Core Switch Units

• 6GK5408-2FD00-2AA2: 8-port managed switch chassis, 2x SFP uplink, base X-400 platform unit
• 6GK5408-2FD00-2AB2: 8-port chassis variant with extended temperature range (-40°C to +70°C)
• 6GK5416-4GS00-2AM2: 16-port Gigabit SFP expansion module, multi-mode/single-mode fiber, X-400 chassis
• 6GK5416-4GS00-2AA2: 16-port Gigabit SFP module, standard temperature, alternate firmware baseline

Copper Port Expansion Modules

• 6GK5992-2AL00-8AA0: 4-port 10/100/1000BASE-T RJ45 expansion module for X-400 chassis
• 6GK5992-2AL00-8AB0: 4-port copper module, PoE-capable variant for field device powering
• 6GK5992-2AM00-8AA0: 8-port 10/100BASE-TX copper expansion, Fast Ethernet density module

Fiber / SFP Expansion Modules

• 6GK5992-2GS00-8AA0: 4-port 1000BASE-SX SFP module, 850nm multi-mode, up to 550m reach
• 6GK5992-2GS00-8AB0: 4-port 1000BASE-LX SFP module, 1310nm single-mode, up to 10km reach
• 6GK5992-2GS00-8AC0: 4-port 1000BASE-LH SFP module, 1550nm single-mode, up to 40km reach

Redundancy Manager / Ring Modules

• 6GK5408-2FD00-2RM2: X-400 chassis with integrated MRP redundancy manager, ring topology support
• 6GK5992-2RM00-8AA0: Standalone redundancy manager expansion module, RSTP/MRP dual-protocol

Power Supply Modules

• 6GK5992-2PS00-8AA0: Redundant 24VDC power supply module for X-400 chassis, 60W rated
• 6GK5992-2PS00-8AB0: 110/230VAC power supply module, DIN-rail mount, X-400 compatible

Management / Communication Modules

• 6GK5992-2MC00-8AA0: PROFINET IO device module, enables X-400 integration into SIMATIC S7 networks
• 6GK5992-2MC00-8AB0: SNMP v3 / HTTPS management module, enhanced cybersecurity firmware
• 6GK5992-2MC00-8AC0: Modbus TCP gateway module for legacy DCS integration

Sourcing Hard-to-Find & Obsolete SCALANCE X-400 Parts

The SCALANCE X-400 series has entered the mature-to-declining phase of its product lifecycle. Siemens has progressively migrated new project specifications toward the SCALANCE XM-400 and SCALANCE XR-500 platforms. As a result, several X-400 expansion modules — particularly early copper and fiber variants — are no longer available through standard Siemens distribution channels.

Quality Control for the SCALANCE X-400 Range

The SCALANCE X-400 series employs a multi-layer backplane bus architecture that requires specialized validation procedures beyond standard power-on testing. DriveKNMS applies the following test protocol to all X-400 units processed through its facility:

• Backplane continuity test: Each expansion module slot is verified for signal integrity across the internal management bus using a reference chassis under controlled load conditions.
• Port-level traffic validation: All copper and fiber ports are tested at 100% line rate using RFC 2544 methodology to confirm zero packet loss under sustained throughput.
• SFP transceiver compatibility check: For fiber modules including the 6GK5416-4GS00-2AM2, optical power levels (Tx/Rx) are measured against Siemens-specified thresholds for each supported transceiver type.
• Firmware version audit: Installed firmware is documented and compared against the target plant's existing switch firmware baseline to prevent version mismatch during installation.
• Redundancy protocol simulation: MRP ring failover and RSTP topology recalculation are tested under simulated link-failure conditions to confirm sub-200ms recovery performance.
• Thermal cycling: Units intended for high-temperature environments are subjected to a 24-hour thermal soak at rated maximum operating temperature prior to shipment.