Ask our team:
  • Phone: +86 181 0690 9650
  • E-Mail sales1@apterpower.com
  • Lifecycle status

    Active / Available from OEM
    Apter Power supports 6GK1503-2CB00 quotations, manuals, optical-budget review, and exact-OLM matching.

6GK1503-2CB00

/ 4.9
1001 reviews | Need a Specific Revision?
The Siemens 6GK1503-2CB00 OLM/G11 is a PROFIBUS optical link module that converts an RS485 bus segment into a glass-fiber communication path.
In Stock
Ships by Wednesday, October 28
Fast Shipping Available
Get a quick price for 6GK1503-2CB00
Quantity
*E-mail
Company
*Mobile
*Content
Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)

Technical specifications for 6GK1503-2CB00

  • Manufacturer:
    Siemens
  • Part Number:
    6GK1503-2CB00
  • Product Family:
    Siemens Simatic Net
  • Product Type:
    PROFIBUS OLM/G11 V4.0 Optical Link Module
  • Stock:
    1
  • PROFIBUS Rates:
    9.6 kbit/s to 12 Mbit/s
  • PROFIBUS PA Rate:
    45.45 kbit/s
  • Electrical Interface:
    9-pin Sub-D, RS485
  • Optical Connectors:
    2 BFOC sockets
  • Fiber Type:
    Glass multimode fiber
  • Optical Wavelength:
    860 nm
  • Maximum Optical Distance:
    3 km
  • Optical Budget, 50/125 µm:
    10 dB
  • Optical Budget, 62.5/125 µm:
    12 dB
  • Transmit Power, 50/125 µm:
    -16 dBm
  • Transmit Power, 62.5/125 µm:
    -13 dBm
  • Receiver Sensitivity:
    -28 dBm
  • Signal Delay:
    6.5 bit times
  • Supply Range:
    18.8 to 28.8 V DC
  • Maximum Current Consumption:
    0.2 A
  • Signal Contact Rating:
    24 V DC, maximum 0.1 A
  • Mounting:
    35 mm DIN rail or wall
  • Protection Rating:
    IP40
  • Operating Temperature:
    0 to +60 °C
  • Ring Redundancy:
    Supported
  • Weight:
    0.9061 lbs (0.411 kg)
  • Estimated shipping dimensions:
    3.95x7.45x11.2cm
  • Tariff Code:
    85176200
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Signal Conversion Optical Budget Ring Operation Power and Testing

Features:

  • One RS485 segment exchanges PROFIBUS frames with one glass-fiber interface.
  • Separate BFOC transmit and receive sockets form the bidirectional optical path.
  • Optical-level measurement, signal contact, redundant power, and ring settings support diagnosis.
Electrical frames are regenerated as light before crossing the isolated fiber section.

The remote optical signal is converted back to RS485 for connected copper stations.

Fiber choice, loss budget, polarity, rate, and ring mode determine successful operation.

The Siemens 6GK1503-2CB00 PROFIBUS OLM/G11 Optical Link Module may remain available for quotation and support beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6GK1503-2CB00 PROFIBUS OLM/G11 Optical Link Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Moving PROFIBUS frames between copper and light

  • RS485 input: The nine-pin electrical interface receives the PROFIBUS frame.
  • Optical transmit: The module regenerates the frame as an 860 nm signal.
  • Optical receive: The return BFOC path brings remote light into the receiver.
  • RS485 output: Recovered data is regenerated for the connected electrical segment.

Calculating whether the fiber path has enough margin

  • Fiber core: 50/125 µm and 62.5/125 µm fibers use different documented budgets.
  • Launch power: Transmitter output starts the loss calculation.
  • Path losses: Fiber attenuation, splices, and BFOC connections consume available margin.
  • Receiver threshold: The arriving signal remains above sensitivity through the intended 3 km maximum.

Coordinating redundant optical paths across modules

  • Topology: Participating OLMs form the documented optical ring arrangement.
  • Operating mode: Every module uses the required ring or line configuration.
  • Fault response: A path interruption changes the active communication route.
  • Recovery check: LEDs, signal contact, optical level, and network status confirm restored communication.

Supplying the module and verifying the physical path

  • Main supply: A 24 V DC source powers the conversion electronics.
  • Redundant supply: A second feed maintains power if the first path fails.
  • Signal contact: The relay transfers the configured module status to external monitoring.
  • Measuring terminal: The test connection supports optical-level checks without replacing protocol diagnostics.
Description
Siemens 6GK1503-2CB00 is the OLM/G11 V4.0 optical link module for PROFIBUS networks. It regenerates data between one electrical RS485 segment and one glass-fiber interface formed by separate BFOC transmit and receive connections.

A PROFIBUS frame entering the nine-pin connector of 6GK1503-2CB00 is converted into an 860 nm optical signal for the remote link. Traffic received from the fiber pair is regenerated onto RS485, allowing copper stations to communicate across an electrically isolated optical section.

The link budget of 6GK1503-2CB00 depends on the selected 50/125 µm or 62.5/125 µm glass fiber, transmitter power, receiver sensitivity, connectors, and cable attenuation. These values jointly set the usable distance up to 3 km rather than the distance rating alone.

Normal or redundant 24 V DC supplies power 6GK1503-2CB00, while the signal contact transfers an assigned module condition to external monitoring. Ring-redundancy settings coordinate the two optical paths across multiple modules, and the measuring terminal supports optical-level checks during commissioning.
Alternative Names
6GK15032CB00 6GK1 503-2CB00 6GK1503 2CB00 Siemens 6GK1503-2CB00 6GK1503-2CB00 OLM/G11 V4.0 OLM/G11 6GK1503-2CB00 6GK 1503 2CB00 6GK1503/2CB00
Technical notes
Select matching glass fiber, BFOC polarity, optical budget, PROFIBUS rate, RS485 termination, ring mode, and redundant supply wiring for Siemens 6GK1503-2CB00.
Exceptional Service

Our Mission

  • 100% Satisfaction

    We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.
  • Trust Guaranteed

    Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.
  • Expertise

    Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why do the optical LEDs on Siemens 6GK1503-2CB00 remain inactive?
Check Siemens 6GK1503-2CB00 supply voltage, BFOC polarity, transmitter at the remote end, fiber continuity, connector cleanliness, operating mode, and received optical level.
Which fiber determines the link budget for 6GK1503-2CB00?
The 6GK1503-2CB00 uses glass multimode fiber; select the documented 50/125 µm or 62.5/125 µm type and calculate losses against its corresponding budget.
Can Siemens 6GK1503-2CB00 connect a PROFIBUS PA rate?
Yes. Siemens 6GK1503-2CB00 lists 45.45 kbit/s alongside the standard PROFIBUS rates, provided the complete segment and partners use a compatible configuration.
What should be measured before replacing 6GK1503-2CB00 for an intermittent link?
Measure the 6GK1503-2CB00 optical level, supply inputs, signal contact, fiber attenuation, connector loss, RS485 waveform, termination, shield, and event timing.
How is a ring fault distinguished from a power fault on Siemens 6GK1503-2CB00?
Compare Siemens 6GK1503-2CB00 supply LEDs and voltage with optical-channel indicators, signal contact state, received level, ring-mode settings, and neighboring OLM status.

Product Browsing History