Siemens 6GK1503-3CB00 PROFIBUS OLM/G12 V4.0 optical link module

Siemens identifies 6GK1503-3CB00 as a PROFIBUS OLM/G12 V4.0 optical link module. The Siemens data sheet specifies one RS-485 interface and two glass-fiber interfaces with BFOC sockets for PROFIBUS communication.

System function and position

Rebuilt from individual evidence

Siemens identifies 6GK1503-3CB00 as a PROFIBUS OLM/G12 V4.0 optical link module.

The Siemens data sheet specifies one RS-485 interface and two glass-fiber interfaces with BFOC sockets for PROFIBUS communication.

Unknown: fiber type, optical budget, topology limits, installed configuration, and current commercial availability require separate evidence.

The module bridges electrical PROFIBUS traffic and glass-fiber optical segments in an industrial network.

Exact reference: 6GK1503-3CB00
Category: PLC / CPU
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Converts PROFIBUS traffic between the RS-485 interface and glass-fiber optical links.
System position: Sits between an electrical PROFIBUS segment and the glass-fiber network path in the automation system.
Upstream / inputs: Receives PROFIBUS traffic through the RS-485 interface and module power through its supply input.
Downstream / outputs: Transmits converted network traffic through the two glass-fiber BFOC interfaces.
Limitations: Unknown: fiber type, optical budget, topology limits, installed configuration, and current commercial availability require separate evidence.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Siemens identifies 6GK1503-3CB00 as a PROFIBUS OLM/G12 V4.0 optical link module.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
The Siemens data sheet specifies one RS-485 interface and two glass-fiber interfaces with BFOC sockets for PROFIBUS communication.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Inferences

The module bridges electrical PROFIBUS traffic and glass-fiber optical segments in an industrial network.
Confidence: medium
Rationale: The system position follows from the documented product function and the named upstream or downstream interface.
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: fiber type, optical budget, topology limits, installed configuration, and current commercial availability require separate evidence.
Confidence: low
Missing evidence: The captured sources do not establish installation-specific compatibility or current commercial conditions.

System position diagram

A flow from the upstream system interface through 6GK1503-3CB00 to the downstream control system. — The diagram shows the documented position of the exact reference in an industrial control path.

View Mermaid source

flowchart LR
  U["Upstream system interface"] -->|"documented input"| P["6GK1503-3CB00"]
  P -->|"documented output"| D["Downstream control system"]

View diagram labels

Nodes: Siemens 6GK1503-3CB00 PROFIBUS OLM/G12 V4.0 optical link module
Edges: Documented system data path

Next action

Siemens identifies 6GK1503-3CB00 as a PROFIBUS OLM/G12 V4.0 optical link module.

Confirm the complete order code and installed system configuration before replacement or commissioning.

Request help with this reference

Provide the exact reference, machine context, and observed symptom so the next review can stay evidence-based.

Submission is unavailable until durable storage is verified.

Reference or description *Recovery mode *Country *RegionEmail *Phone

I’m unsure of the exact reference or route; keep my description for human qualification.

Add context only if useful

ManufacturerMachine or lineComponent typeUrgencyProduction impactQuantityAcceptable conditionNeed byPreferred contact

Technical context

What is known so far?

Optional updatesNotify me when the supplier price changesSubscribe to the ardkor.org newsletter

This may be safety-sensitive or emergency-related; hold it for human handling.Allow anonymous landing and source categories to be saved with this request for analytics. This is optional and separate from routing.

Recipient and data disclosure

Named recipient: Ardkor human-qualification queue (internal local preview). No partner delivery is enabled here.

Data retained for this review: reference, selected route, location, technical context, contact details, consent state, and any accepted private attachment.

Response expectation: none is promised. If external routing is enabled later, the partner name, disclosed fields, and response expectation must be shown and accepted again.

Withdrawal and deletion: use the private request controls from the receipt to withdraw further processing or request access/deletion. The request remains recorded until the relevant Ardkor systems and any recipient confirm completion.

External routing consent: I separately authorize Ardkor to use this request for human qualification in the named internal queue. No external partner is authorized by this checkbox.

Read the privacy information before sending. For corrections, access, or deletion help, use the contact page or email reference@ardkor.org; mailbox delivery and attendance have not been verified.

This routing state is separate from watch, marketing, payment, and analytics choices. If no capable service match is found, the request remains a human-qualification lead and is never presented as provider acceptance. Ardkor is not an emergency or safety service and submission does not guarantee availability, price, repair, sourcing, or response.