Siemens 6GK1162-3AA00 OLM | Optical Link Module, PROFIBUS, Glass Fiber, 12Mbit/s

Siemens 6GK1162-3AA00 OLM | Optical Link Module, PROFIBUS, Glass Fiber, 12Mbit/s

Siemens 6GK1162-3AA00 OLM specifications. Optical link module for PROFIBUS, glass fiber, 12 Mbit/s, 24V DC.

Product Overview

The Siemens 6GK1162-3AA00 is an Optical Link Module (OLM) from the SIMATIC NET series. It is designed for converting electrical PROFIBUS DP signals into optical signals for transmission via glass fiber cables. This module enables the extension of PROFIBUS networks over long distances and provides electrical isolation. It supports transmission rates up to 12 Mbit/s and is suitable for line, star, and ring topologies.

Technical Specifications

Key Features

• Optical PROFIBUS Extension:​ Extends network distances up to 3 km using glass fiber

• Multi-Rate Support:​ Automatic baud rate detection from 9.6 kbit/s to 12 Mbit/s

• Redundant Ring Capability:​ Supports optical ring topologies for increased availability

• Electrical Isolation:​ Galvanic isolation between PROFIBUS and optical ports

• Dual Optical Ports:​ Two glass fiber interfaces for line or ring configurations

• Compact Design:​ Space-saving housing for DIN rail mounting

• LED Diagnostics:​ Clear status indication for power, bus activity, and optical links

• No Configuration Required:​ Plug-and-play operation

Applications

• Extending PROFIBUS DP networks over long distances between buildings or plant areas

• Electrical isolation of PROFIBUS segments in high-EMI environments

• Redundant optical ring networks in critical infrastructure

• Connecting PROFIBUS devices in large industrial facilities

• Upgrading existing copper PROFIBUS networks to fiber optics

Important Notes

1. This module requires a 24V DC power supply (not included).

2. Glass fiber cables with BFOC/ST connectors are required for optical connections.

3. For plastic fiber or PCF, other OLM variants (e.g., 6GK1162-4AA00) are available.

4. The RS485 bus segment must be terminated with appropriate active bus terminators.

5. In redundant ring configurations, two OLMs are required per node.