Siemens 6GK5992-2AL00-8AA0 MM992-2 media module

Documented MM992-2 media module function and network position for 6GK5992-2AL00-8AA0.

Documented system function

Rebuilt from individual evidence

The documented 6GK5992-2AL00-8AA0 is a MM992-2 media module with the identity and characteristics stated in the cited source.

The documented interfaces place this device between an upstream control network and downstream industrial equipment.

Exact reference: 6GK5992-2AL00-8AA0
Category: PLC / CPU
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Routes or transmits the documented communication traffic at the industrial system boundary.
System position: Sits at the documented network boundary.
Upstream / inputs: Receives the upstream control-network data.
Downstream / outputs: Serves the downstream network devices.
Limitations: Unknown: installed wiring, configuration, firmware compatibility, and current unit condition.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The fetched exact-reference listing identifies this reference as the Siemens SCALANCE X MM992-2 media module.
Confidence: medium
- abi.com.mx — retrieved 2026-09-12; medium confidence
The listing describes two SC optical ports at 1000 Mbit/s for multimode glass fiber and a maximum stated reach of 750 m.
Confidence: medium
- abi.com.mx — retrieved 2026-09-12; medium confidence

Inferences

The documented interfaces place this device between an upstream control network and downstream industrial equipment.
Confidence: medium
Rationale: The exact-reference identity and documented interfaces place this device at the stated network boundary.
- abi.com.mx — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: installed wiring, configuration, firmware compatibility, and current unit condition.
Confidence: low
Missing evidence: An installed-system inspection and compatibility record were not available in the individual lookup.

System position diagram

Upstream control network connected through 6GK5992-2AL00-8AA0 to downstream network devices. — The device sits between the upstream control network and downstream network devices.

View Mermaid source

flowchart LR
  upstream[Upstream control network] --> device[6GK5992-2AL00-8AA0]
  device --> downstream[Downstream network devices]

View diagram labels

Nodes: Upstream control network; 6GK5992-2AL00-8AA0 device; Downstream network devices
Edges: Network data enters the device; Device serves the downstream network

Next action

Use this reference when the documented interfaces and network requirements match the installation.

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