Tag: OTU3

OTN – Lesson 6 – Converting OTL3.4 Back into OTU3 – Video 2

This blog post contains a video that serves as the 2nd of two videos that describe the functionality of the OTL3.4 Sink Terminal (aka the OTSiG/OTUk_A_Sk Atomic Function). This video focuses on Skew Compensation and ultimately combining the 4 OTL3.4 Lanes back into a Composite OTU3 signal.

OTN – Lesson 6 – Converting OTL3.4 Signals back into a Composite OTU3 Signal – Video 2 of 2

This blog post contains the second (of 2) videos that describes how we take an OTL3.4 Interface (or set of signals) and convert these signals back into a single (composite) OTU3 signal.  

This particular video completes the discussion of the OTSiG/OTUk_A_Sk Atomic Function (which, again, is a fancy word for OTL3.4 Sink Terminal).  

NOTE:  We formally introduce the OTSiG/OTUk_A_Sk Atomic Function in Lesson 9.  

This video discusses how the Lane Marker and Delay Processing Block (within the OTSiG/OTUk_A_Sk Function) evaluates all of the data and metrics coming from the four Lane Frame Alignment, Lane Alignment Recovery, and Elastic Store blocks and:

  • Measures and performs Skew Compensation,
  • Declares the dLOL (Loss of Lane Alignment) Defect Condition and 
  • Routes the de-skewed data to the 16-Byte Block MUX – which combines each of the four OTL3.4 lane signals back into a composite OTU3 signal. 

Continue reading “OTN – Lesson 6 – Converting OTL3.4 Back into OTU3 – Video 2”

OTN – Lesson 6 – Converting OTL3.4 Back into OTU3 – Video 1

This blog post contains a Video that serves as a first (of two) videos that discusses the functionality of the OTL3.4 Sink Terminal (aka OTSiG/OTUk_A_Sk Function). This video focuses on the dLOFLANE and dLOR defects.

OTN – Lesson 6 – Converting OTL3.4 Signals back into a Composite OTU3 Signal – Video 1 of 2

This blog post contains the first (of 2) videos that describe how we take an OTL3.4 Interface (or set of signals) and convert these signals back into a single (composite) OTU3 signal.  

This video introduces the OTSiG/OTUk_A_Sk Atomic Function (a fancy word for OTL3.4 Sink Terminal).  

NOTE:  We don’t mention OTSiG/OTUk_A_Sk Atomic Function until Lesson 9.  We call this function the OTL3.4 Sink Terminal.  

This video discussed how the OTSiG/OTUk_A_Sk Function accepts electrical lane signals from an Optical Module (in the OTL3.4 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 signals, and 
  • Checking to see if we should declare/clear the dLOFLANE (Loss of Frame – of Logical Lane) defect condition.
  • Finally, we will discuss how the OTSiG/OTUk_A_Sk function checks each incoming OTL3.4 lane signal to see if it should declare the dLOR (Loss of Recovery) defect condition.  

Continue reading “OTN – Lesson 6 – Converting OTL3.4 Back into OTU3 – Video 1”