Siemens Scalance X Plug-in transceiver, 1x 100 Mbit/s, LC port

Product Overview

The Siemens 6GK5991-1AD00-8AA0 is the Siemens SCALANCE X plug-in transceiver module SFP991-1. It provides a 100 Mbit/s multimode fibre-optic interface with an LC port, enabling fibre-optic network connections for industrial Ethernet and PROFINET systems — useful for long-distance or electromagnetically noisy environments.

Key Features

• Fibre-optic SFP transceiver module (SFP991-1)
• Single LC port, multimode fibre interface
• 100 Mbit/s data rate (100BASE-FX)
• Up to 5 km transmission range (depending on fibre and setup)
• Compact SFP form factor — width approx. 14 mm, depth about 57 mm, height about 9 mm
• Net weight ~ 0.01 kg — small, lightweight module
• Operating temperature range: –40 °C to +85 °C — suitable for industrial environments and harsh conditions
• Relative humidity up to 95% (non-condensing) supported
• Protection class IP20 (in socket / enclosure when installed)
• Plug-in latched mounting — easy to install into compatible switches or media modules

Technical Specifications

• Article Number: 6GK5991-1AD00-8AA0
• Product Type: SCALANCE X SFP transceiver module (SFP991-1)
• Data Rate: 100 Mbit/s (100BASE-FX)
• Optical Interface: 1 × LC port, multimode fibre
• Transmission Range (multimode): up to 5 km (depending on fibre type and link conditions)
• Operating Temperature: –40 °C … +85 °C
• Storage / Transport Temperature: –40 °C … +85 °C
• Relative Humidity (max, non-condensing): 95% at 25 °C
• Protection Class: IP20 (when installed)
• Dimensions (approx.): 14 mm (W) × 9 mm (H) × 57 mm (D)
• Net Weight: 0.01 kg
• Mounting / Form Factor: SFP plug-in module (latched mounting)
• Compatibility: Designed for SCALANCE X switches and other compatible media-module slots

Compliance & Certifications

• Designed as an accessory for SCALANCE industrial Ethernet hardware
• Suitable for industrial network environments, rail or factory automation, or switchgear installations with fibre links

Applications

The 6GK5991-1AD00-8AA0 transceiver is used to extend industrial Ethernet or PROFINET networks over fibre-optic links, enabling reliable communication across long distances or in environments with high electromagnetic interference. Typical applications include factory automation, distributed I/O systems, process control networks, machine-to-machine communication, remote sensor/actuator networking, and any installation requiring robust fibre-optic connectivity.