Siemens 6GK1502-3CB10 PROFIBUS Optical Link Modules
Manufacturer: Siemens
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Part Number: 6GK1502-3CB10
Condition：New with Original Package
Product Type: Optical Link Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Siemens 6GK1502-3CB10 PROFIBUS Optical Link Module
The Siemens 6GK1502-3CB10, also cataloged as the 6GK1502-3CB10 Optical Link Module, operates as a dedicated hardware component for converting RS-485 electrical signals into 1300 nm optical signals within SIMATIC NET PROFIBUS DP and PA networks. Furthermore, the unit manages optical signal distribution across line, star, and redundant ring network architectures while delivering full galvanic isolation. Consequently, this hardware component eliminates ground loop currents and protects communication lines against electromagnetic interference over long transmission spans.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 6GK1502-3CB10 |
| Brand | Siemens |
| Origin | Germany |
| Weight | 0.40 kg |
| Dimensions | 39 x 147 x 114 mm |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | 4.5 W at 24 VDC |
| Product Type | Optical Link Modules |
| Series | SIMATIC NET OLM/G12-1300 |
| Electrical Interface | 1 x RS-485 PROFIBUS (Sub-D 9-pin) |
| Optical Interface | 2 x Glass Fiber Ports (4 x BFOC sockets) |
| Optical Wavelength | 1300 nm |
| Data Rate (PROFIBUS DP) | 9.6 kbit/s to 12 Mbit/s |
| Data Rate (PROFIBUS PA) | 45.45 kbit/s |
| Network Topologies | Line, star, redundant ring |
| Diagnostic Functions | Signaling contact, integrated test interface |
| Power Supply Input | Redundant 24 VDC (18 VDC to 32 VDC) |
Deterministic PROFIBUS Transmission and Firmware Compatibility
Siemens OLM/G12-1300 modules maintain deterministic message routing without introducing bit jitter or variable latency across complex fieldbus segments. The internal optical transceiver logic processes RS-485 data streams at the physical layer, ensuring strict timing synchronization between master nodes and distributed I/O drops. Additionally, firmware flash compatibility preserves transparent protocol pass-through for PROFIBUS DP and PA devices, which guarantees real-time cycle integrity when ring redundancy logic executes a physical path failover.
Frequently Asked Questions
Q: How does the integrated analog test interface function during routine maintenance?
A: The test interface provides a measurable DC output voltage proportional to the incoming optical power level, allowing technicians to verify optical attenuation using a standard multimeter without disconnecting active fiber channels.
Q: How does the module handle a power supply input degradation?
A: The onboard power supervisor monitors both 24 VDC redundant input rails. If one line drops below the operational threshold, the module automatically shifts execution to the secondary rail and trips the internal signaling contact to alert the master system.
Q: Is manual baud rate matching required when deploying the module on a 12 Mbit/s bus segment?
A: No, the onboard controller performs automatic baud rate detection across all standard PROFIBUS transmission speeds from 9.6 kbit/s up to 12 Mbit/s without hardware DIP switch selection.
Field Installation Guidelines
Snap the module onto a standard 35 mm DIN rail in a vertical orientation. Ensure that cabinet layout provides at least 50 mm of clear vertical spacing above and below the housing ventilation slots to allow adequate natural thermal convection across the -40 deg C to +70 deg C operating envelope.
Inspect all BFOC optical connectors and clean them using lint-free fiber cleaning tools before insertion into the dual optical ports. Connect the shield of the RS-485 copper cable to the functional earth ground terminal using a low-impedance connection, and route all communication wiring in dedicated cable channels separate from high-voltage AC motor circuits.