JEWELBLU OPTICALFIBER PATCH CORDS Technical Inquiry

Where can I find the model number of the optical module

The model number of an optical module can be found either via vendor-specific commands on the network device or by inspecting the chip markings inside the module.

Using Network Device Commands

1. Cisco Devices:

  • Use show inventory to list all installed modules, including Product ID (PID), Version ID (VID), and serial numbers.
  • Use show interface transceiver detail to view Digital Diagnostic Monitoring (DDM) metrics such as temperature, voltage, Tx/Rx power, and vendor details, which often include the module model number .
  • For Nexus switches, show interface transceiver or show inventory all can provide SFP/SFP+ module details .

2. Huawei Devices:

  • Run display transceiver [interface interface-type interface-number | slot slot-id] to view detailed optical module information.
  • Use display transceiver diagnosis interface [interface-type interface-number] to check diagnostic data, including module type, wavelength, and transmission distance .

3. Fortinet Devices:

  • Commands like get system interface transceiver or get system interface transceiver display vendor, serial number, and module type.
  • diagnose hardware deviceinfo nic can provide additional interface-specific details .
Inspecting the Optical Module Chip

Optical modules contain several semiconductor chips such as laser chips, photodetectors, driver chips, TIA chips, and DSP chips. Each chip has a model number printed on it, which identifies its type, supported data rate, and manufacturer. By reading these markings, engineers can determine:

  • Chip type (e.g., VCSEL, DFB, EML for lasers)
  • Supported transmission speed (e.g., 25G, 100G, 400G)
  • Application environment and technology platform .

Once the chip model number is obtained, it can be cross-referenced with the manufacturer's datasheets or electronic component databases for detailed specifications.

Summary

To find the model number of an optical module:

  1. Use device CLI commands appropriate for your vendor to display module information.
  2. Check the module physically for chip markings if detailed chip-level identification is needed.
  3. Verify against manufacturer documentation to confirm specifications, supported speeds, and compatibility.

This approach ensures accurate identification for maintenance, troubleshooting, or procurement purposes.

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Log in to to view the optical module types supported by the switch.

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Technical note

This reference is intended for preliminary fiber optic patch cord research. Compatibility, link budgets, connector types, polish, installation methods, test limits and applicable standards must be verified for the specific project.

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