

The SIEMENS 6GK1503-3CB00 is the PROFIBUS OLM/G12 V4.0 Optical Link Module, a cornerstone component for expanding and hardening PROFIBUS DP networks in demanding industrial environments. This active module acts as a repeater and media converter, allowing you to bridge electrical RS-485 segments with long-haul fiber optic links. With two BFOC glass fiber interfaces and one RS-485 port, it supports point-to-point, star, or ring topologies, ensuring reliable data transmission over distances up to 2850 meters. The integrated signaling contact and measuring output enable real-time status monitoring and fault detection, making it indispensable for critical infrastructure in manufacturing, energy, and process industries. Below are the comprehensive technical specifications derived from the original Siemens datasheet.
| Parameter | Specification |
|---|---|
| Article Number | 6GK1503-3CB00 |
| Product Type | PROFIBUS OLM/G12 V4.0 Optical Link Module |
| Interfaces | 1 x RS-485 (electrical), 2 x BFOC glass fiber (optical) |
| Fiber Optic Connector Type | BFOC (ST-compatible) sockets |
| Maximum Distance (Standard) | Up to 2850 m per segment (glass fiber) |
| Signaling Contact | Yes, for fault alarm relay |
| Measuring Output | Yes, for optical power monitoring |
| Data Rate | PROFIBUS DP up to 12 Mbps (automatic detection) |
| Product Lifecycle | PM300: Active Product |
| Net Weight | 0.415 kg |
| Packaging Dimensions (H x W x D) | 39.50 x 74.50 x 112.00 mm |
| Packaging Quantity | 1 piece |
| Country of Origin | Germany |
| RoHS Compliance | Given |
| Export Control (AL / ECCN) | N / N |
| Estimated Dispatch Time | 1 working day |
| EAN | 4.01917E+12 |
| UPC | 6.62643E+11 |
| Commodity Code | 85176200 |
| Product Group | 2449 |
| Group Code | R320 |
| SCIP Number | e67487e2-a002-4cce-a6d6-79ddba146b57 |
| REACH Compliance | Lead CAS-No. 7439-92-1 > 0.1% (w/w) |
| eClass (v12.0 / v14.0 / v6.0 / v7.1 / v8.0 / v9.0 / v9.1) | 19-17-01-32 / 19-17-01-32 / 19-17-01-90 / 19-17-01-14 / 19-17-01-14 / 19-17-01-14 / 19-17-01-14 |
| ETIM (v7.0 / v8.0 / v9.0) | EC001467 |
| UNSPSC | 43-20-15-44 |

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