6GK5992-2AM00-8AA0 Siemens SCALANCE X Media Module MM992-2LD

Product Overview

The 6GK5992-2AM00-8AA0 (6GK59922AM008AA0) is a high-performance SCALANCE X media module designed for long-distance industrial Ethernet communication. Specifically identified as the MM992-2LD, this module features two 1000 Mbit/s SC ports engineered for single-mode optical fiber transmission, supporting distances up to 10 km. Primarily utilized in large-scale infrastructure projects such as smart grids, oil and gas pipelines, and expansive automotive manufacturing plants, the 6GK5992-2AM00-8AA0 provides the critical backbone for high-bandwidth data backhaul. Its ruggedized construction ensures reliable operation in EMI-heavy environments, offering superior galvanic isolation and signal stability to prevent network jitter and significantly reduce the risk of industrial communication failures.

Technical Configuration

The 6GK5992-2AM00-8AA0 employs a modular plug-in architecture compatible with the SCALANCE X-300 and XR-500 managed switch families. This module utilizes advanced laser optics for single-mode fiber (SMF) interfaces, providing a high-speed 2-port Gigabit Ethernet uplink. The hot-swappable design allows for network expansion or maintenance without interrupting the power supply to the host switch, which is vital for maintaining 24/7 uptime in automated facilities. The hardware is designed for extreme durability, featuring a compact form factor that maintains optimal airflow within the switch chassis. With a maximum reach of 10 km, it effectively bridges the gap between decentralized control rooms and remote field sites, utilizing the SC-port standard for secure and stable physical connectivity.

Technical Specifications

Technical FAQs

Is the 6GK5992-2AM00-8AA0 compatible with multi-mode fiber?

No. This module is specifically calibrated for single-mode fiber (9/125 µm). Using it with multi-mode fiber will result in high signal attenuation and will not achieve the rated 10 km distance.

What is the benefit of the "Phase-Out" status for my facility?

The "Phase-Out" status indicates that while Siemens is transitioning to newer generations, this module is still fully supported for maintenance and spare parts. It is essential for facilities standardizing on SCALANCE X-300/500 hardware to keep original stock to avoid costly network re-designs.

Can I hot-swap this module while the switch is operational?

Yes, the MM992-2LD supports hot-swapping. However, always ensure the fiber optic cables are disconnected before removing the module to prevent laser exposure and protect the optical interfaces from dust contamination.

Engineering & Installation Guide

• Optical Path Budget: When planning a 10 km run, ensure the total optical loss (including splices and patch panels) does not exceed the module's power budget. Use a calibrated optical power meter during commissioning to verify that the received signal strength falls within the specified operational window to prevent bit errors.

• Dust Management: Fiber optic SC-ports are highly sensitive to microscopic contamination. Always keep the protective dust caps on the module and the fiber connectors until the moment of insertion. Even a single speck of dust can cause a permanent "burn-in" on the laser interface at Gigabit speeds.

• Bend Radius Compliance: When routing single-mode fiber from the 6GK5992-2AM00-8AA0 through cabinet conduits, maintain a minimum bend radius of at least 30 mm (or as specified by the cable manufacturer). Tight bends cause "macro-bending" loss, which can lead to intermittent link drops or reduced throughput.

• Laser Safety: This module is a Class 1 Laser Product. While safe under normal operation, never look directly into the optical ports or the end of a connected fiber cable while the module is powered, as infrared laser light is invisible to the human eye but can cause retinal damage.