Hirschmann OZD PROFI 12M G12-1300 PRO – PROFIBUS Fiber Optic to Electrical Interface Converter | OZD PROFI 12M Series
Engineering Background
The Hirschmann OZD PROFI 12M G12-1300 PRO is a high-performance PROFIBUS interface converter designed to bridge fiber optic and electrical segments within PROFIBUS DP/FMS networks. Engineered by Hirschmann — a globally recognized leader in industrial networking — this device enables reliable, noise-immune data transmission in demanding industrial environments where copper-based signals are susceptible to electromagnetic interference (EMI).
Product Positioning
Targeted at automation engineers, system integrators, and OEM designers who require deterministic PROFIBUS communication across mixed-media topologies, the OZD PROFI 12M G12-1300 PRO delivers up to 12 Mbps data rates with a 1300 nm single-mode or multimode fiber interface (G12 port). It is the preferred choice for power plants, chemical processing, automotive assembly lines, and any facility where electrical isolation and long-distance segment extension are critical.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | OZD PROFI 12M G12-1300 PRO |
| Manufacturer | Hirschmann (Belden Brand) |
| Product Series | OZD PROFI 12M |
| Function | PROFIBUS Fiber Optic ↔ Electrical Interface Converter |
| Protocol | PROFIBUS DP / FMS (EN 50170) |
| Max. Data Rate | 12 Mbps |
| Fiber Port Type | G12 (ST connector, 1300 nm wavelength) |
| Electrical Interface | RS-485 (9-pin D-Sub, PROFIBUS standard) |
| Fiber Type | Multimode / Single-mode (62.5/125 µm or 9/125 µm) |
| Max. Fiber Segment Length | Up to 3000 m (multimode) / 15 km (single-mode) |
| Supply Voltage | 24 VDC (18–32 VDC) |
| Power Consumption | ≤ 3 W |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Protection Class | IP20 |
| Mounting | DIN rail (35 mm) |
| Dimensions (W×H×D) | Approx. 35 × 99 × 114 mm |
| Weight | ~1230 g (with packaging) |
| Certifications | CE, UL, cUL |
| Country of Origin | Germany |
Proven Application Environments
- Process Automation: Chemical plants, oil & gas refineries, water treatment facilities — where EMI immunity and galvanic isolation are mandatory.
- Power Generation & Distribution: Substations and power plants requiring long-distance PROFIBUS segment extension beyond RS-485 limits.
- Automotive Manufacturing: Robotic assembly lines with high-frequency inverter noise requiring fiber isolation between PLCs and field devices.
- Discrete Manufacturing: CNC machining centers, press lines, and conveyor systems integrating SIMATIC S7, Allen-Bradley, or Schneider PLCs via PROFIBUS DP.
- Building Automation: Large-scale HVAC and BMS networks spanning multiple buildings where fiber backbone is already deployed.
Engineering Advantages
- Full 12 Mbps PROFIBUS Speed: Supports all standard PROFIBUS baud rates from 9.6 kbps to 12 Mbps — no speed compromise.
- Galvanic Isolation: Complete electrical isolation between fiber and copper segments eliminates ground loop interference and protects connected equipment.
- Transparent Repeater Function: Acts as a transparent PROFIBUS repeater — no address configuration required, plug-and-play integration.
- Extended Reach: Overcomes the 1200 m RS-485 distance limit; fiber segments up to 15 km with single-mode fiber.
- DIN Rail Mounting: Standard 35 mm DIN rail installation for seamless integration into existing control cabinets.
- Diagnostic LEDs: Onboard status LEDs for power, PROFIBUS activity, and fiber link — enabling rapid fault isolation.
- Wide Temperature Range: -20°C to +60°C operating range suitable for unheated enclosures and outdoor cabinets.
System Architecture & Signal Flow
The OZD PROFI 12M G12-1300 PRO operates as a two-port repeater: one RS-485 electrical PROFIBUS port and one G12 fiber optic port. The device regenerates and retimes PROFIBUS signals in both directions, maintaining bus timing integrity at all supported baud rates. In a typical topology, the converter is installed at the boundary between the copper PROFIBUS segment (connecting PLCs, HMIs, or DP masters) and the fiber backbone segment (connecting remote I/O stations, drives, or field devices). Multiple OZD PROFI units can be cascaded to extend the network across multiple fiber hops while preserving PROFIBUS DP cycle times.
Typical Wiring:
- RS-485 side → 9-pin D-Sub to PROFIBUS DP master or slave device
- Fiber side → ST connector to fiber patch cable (62.5/125 µm multimode or 9/125 µm single-mode)
- Power → 24 VDC via screw terminal block
Sourcing & Quality Verification
All Hirschmann products supplied by Konmask.com are sourced through verified industrial distribution channels. Each unit undergoes the following verification process before shipment:
- Visual inspection of housing, connectors, and labeling against OEM specifications
- Firmware/hardware revision verification against Hirschmann product documentation
- Functional power-on test confirming LED status and port initialization
- Original manufacturer packaging and documentation included where available
- Traceability records maintained for all stocked units
Konmask.com specializes in industrial automation components for B2B procurement teams. We maintain stock of hard-to-source and discontinued Hirschmann networking products to support MRO and project-based purchasing.
Procurement Process
- Step 1 — Inquiry: Submit your RFQ via the product page or email support@konmask.com with quantity and required delivery date.
- Step 2 — Quotation: Receive a formal quotation within 1 business day including unit price, lead time, and shipping options.
- Step 3 — Order Confirmation: Place order via the Konmask.com storefront or via PO for approved B2B accounts.
- Step 4 — Inspection & Dispatch: Unit inspected, packed, and dispatched with tracking. Express and freight options available worldwide.
- Step 5 — After-Sales Support: Technical support available post-delivery for integration assistance and warranty claims.
Technical FAQ
Q: Is the OZD PROFI 12M G12-1300 PRO compatible with SIEMENS SIMATIC S7 PROFIBUS DP networks?
A: Yes. The device is fully transparent to all PROFIBUS DP masters and slaves, including Siemens S7-300, S7-400, and S7-1500 series with CP 342-5 or CP 443-5 communication processors.
Q: Can I use multimode fiber with this unit?
A: Yes. The G12 port supports 62.5/125 µm multimode fiber with ST connectors at 1300 nm wavelength, with a maximum segment length of approximately 3000 m.
Q: Does this device require any software configuration?
A: No. The OZD PROFI 12M G12-1300 PRO is a plug-and-play transparent repeater. No GSD file, address setting, or software tool is required for basic operation.
Q: What is the maximum number of OZD PROFI units that can be cascaded?
A: PROFIBUS DP allows up to 9 repeater stages between any two devices. Each OZD PROFI unit counts as one repeater stage.
Q: Is a 24 VDC power supply included?
A: No. A 24 VDC power supply (18–32 VDC, ≥ 3 W) must be provided separately. Standard DIN rail PSUs are compatible.
Q: What warranty applies to this product?
A: Konmask.com provides a 90-day functional warranty on all stocked units. Extended warranty and service contracts are available upon request.
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