OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 3

This post presents both information and video training on how we take an OTL4.4 signal and recombine it back into a composite OTU4 signal. This post serves as the third of 3 videos for the OTL4.4 Sink Terminal.

In this video we focus on the Lane Alignment Recovery Block and Skew Compensation.

OTN – Lesson 7 – Converting OTL4.4 Signals back into a Composite OTU4 Signal – Video 3

This blog post presents the 3rd (of a set of 3 videos) that discusses how we convert an OTL4.4 Interface (or set of signals) back into a single (composite) OTU4 signal.  

In particular, this video discusses the following:

  • It discuss how the OTSiG/OTUk_A_Sk function declares and clears the dLOR (Loss of Recovery) defect condition, for each of the 20 Logical Lanes, by walking through the Lane Alignment Recovery Block – LOR/OOR/IR State Machine diagram.  
  • This video also discusses Lane-to-Lane Skew Compensation, and
  • How the OTSiG/OTUk_A_Sk function declares or clears the dLOL defect condition, and 
  • How the OTSiG/OTUk_A_Sk function combines the 20 Logical Lanes back into a single (composite) OTU4 signal.  

Continue reading “OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 3”

OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 2

This post presents both information and video training on how we take an OTL4.4 signal and recombine it back into a composite OTU4 signal. This post serves as the second of 3 videos for the OTL4.4 Sink Terminal.

OTN – Lesson 7 – Converting OTL4.4 Signals back into a Composite OTU4 Signal – Video 2 of 3

This blog post contains the 2nd of 3 videos that discusses how we convert an OTL4.4 interface (or set of signals) back into a single (composite) OTU4 signal.  

This particular video discusses how we declare and clear the dLOFLANE (Loss of Frame of Logical Lane) defect condition (by walking through the OTL4.20 dLOFLANE/In-Frame State Machine.  

This video also starts the discussion of how we declare the dLOR (Loss of Recovery) defect for each of the 20 Logical Lanes.  

Continue reading “OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 2”

OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal

This post presents both information and video training on how we take an OTL4.4 signal and recombine it back into a composite OTU4 signal. This post serves as the first of 3 videos for the OTL4.4 Sink Terminal.

This video introduces the OTL4.4 Sink Terminal (and the OTSiG/OTUk_A_Sk Atomic Function) and focuses on the Lane Frame Alignment Block and the dLOFLANE/In-Frame State Machine Diagram.

OTN – Lesson 7 – Converting OTL4.4 Signals back into a Composite OTU4 Signal – Video 1 of 3

This blog post contains the first (of 3) videos that describes how we take an OTL4.4 Interface (or set of signals) and converts these signals back into a single (composite) OTU4 signal.  

This particular video introduces the OTSiG/OTUk_A_Sk Atomic Function (which is a fancy word for OTL4.4 Sink Terminal).  

This video discusses how the OTSiG/OTUk_A_Sk Function accepts electrical lane signals from an Optical Module (in the OTL4.4 format) and processes these signals by:

  • Checking to see if we should declare/clear the dLOS-P (Loss of Signal – Path) Defect condition with these Electrical Lane signal, and
  • De-Multiplexing these signals into the 20 Logical Lane signal.  

Continue reading “OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal”