OTN – Lesson 10 – Video 2M – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions

This post presents the 2nd of the 6 Videos that covers training on the Peformance Monitoring of the ODUk Layer (for Multiplexed Applications). This post focuses on the Sink Direction ODU-Layer Atomic Functions.

OTN – Lesson 10 – Video 2M – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions

This blog post includes a video that begins our discussion of the Sink (or Receive) Direction Atomic Function/Circuitry for the ODU-Layer/Multiplexed Applications.  

In particular, this video reviews the following Atomic Functions

  • OTUk/ODUk_A_Sk Function
  • ODUk_TT_Sk Function

NOTE:  Even though we did review these functions back in the Non-Multiplexed portion of Lesson 10 Training; I wanted to review the Consequent Equations for these functions (once again), because these equations do impact the signals that the ODUkP/ODUj-21_A_Sk function (downstream) will “see”.

Continue reading “OTN – Lesson 10 – Video 2M – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions”

OTN – Lesson 10 – Video 3N – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions

This post presents the 3rd of the 7 Videos that covers training on the Peformance Monitoring of the ODUk Layer (for Non-Multiplexed Applications). This post focuses on the Sink Direction ODU-Layer Atomic Functions.

OTN – Lesson 10 – Video 3 – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions

This post contains a video that begins our discussion of the Receive (or Sink) Direction circuitry.  

In particular, this video covers the following Atomic Functions.

  • The OTUk/ODUk_A_Sk Atomic Function, and
  • A portion of the ODUk_TT_Sk Atomic Function.

This video covers the following features associated with the ODUk_TT_Sk Atomic Function.

  • Checking for Near-End Errors (e.g., PM-BIP-8 Errors)
  • Checking for Far-End Error Counts (e.g., PM-BEI)

This video also discusses how the ODUk_TT_Sk function will declare and clear the PM-dBDI (Backward Defect Indicator) defect condition.  

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OTN – Lesson 9 – Video 10 – OTUk/ODUk_A_Sk Function

This post presents the 10th of the 11 Videos that covers training on Performance Monitoring at the OTUk Layer. This post focuses on the Sink Direction OTU-Layer Atomic Functions.

OTN – Lesson 9 – Video 10 – OTU Layer Sink Direction Circuitry/Functionality – Part 8

This blog post contains a video that completes much of the Sink (or Receive) Direction Atomic Function circuitry at the OTU Layer.  

In particular, this function will discuss the role/functionality of the OTUk/ODUk_A_Sk Atomic Function.  

As we discuss this Atomic Function, we will focus on the following items.

  • APS (Automatic Protection Switching) features/hooks within the OTUk/ODUk_A_Sk function.
  • Forcing the OTUk/ODUk_A_Sk function to transmit the ODUk-LCK Maintenance Signal downstream.
  • How the OTUk/ODUk_A_Sk function responds to the upstream OTUk_TT_Sk function asserting the AI_TSF and AI_TSD output signals.
  • Consequent Equation Analysis
  • The ODUk-AIS Maintenance Signal
  • Summary of the OTUk/ODUk_A_Sk Function

And finally, a review of the ODUk-OCI Maintenance Signal.

Continue reading “OTN – Lesson 9 – Video 10 – OTUk/ODUk_A_Sk Function”