What is Super C-band

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G.709 ODU Maintenance Signals

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  ODU maintenance signals  Three ODU maintenance signals are defined as per G.709: ODU-AIS, ODU-OCI and ODU-LCK ODU alarm indication signal (ODU-AIS)   ODUK-AIS-PM is a secondary condition that indicates a more serious condition such as the LOS (OCN/STMN) alarm occurring downstream. The ODUK-AIS-PM condition is reported in the path monitoring area of the optical data unit wrapper overhead. ODUK-AIS-PM is caused by the upstream ODUK-OCI-PM .   ODUk-AIS is specified as all "1"s in the entire ODU signal, excluding the frame alignment overhead (FA OH), OTU overhead (OTU OH)  The ODUk contains one instance of ODU AIS. The ODUCn contains n instances of ODU AIS, numbered 1 to n (ODU AIS #1 to #n). In addition, the ODU-AIS s...
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Bit rate and Baud rate

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In telecommunication Bit rate and baud rate are two important terms. Bit rate and baud rate play important role when we talk about Serial protocol  UART or modulation schemes like BPSK or QPSK   etc., Bit rate is the transmission of number of bits per second. It determines the number of bits traveled per second. Baud rate is defined as the number of signal units(also called as elements) per second. It determines how many times the state of a signal is changing.  For example baud rate is 9600 means 9600 signal level changes are happening within a second.It can determine how much bandwidth is required to send the signal. Relation between Bit rate(r), Baud rate(R), the number of bit per baud(n) Bit rate(r) = R x n Baud rate(R)= r/n
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OPEN ROADM MSA

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The goals of the Open ROADM Multi-Source Agreement are  (1) the disaggregation and opening up of traditionally proprietary ROADM systems   (2) the SDN-enablement of traditionally fixed ROADMs   There are many ways to disaggregate ROADM systems, e.g. hardware disaggregation (e.g. defining a common shelf) or functional disaggregation (less about hardware, more about function). Due to the complexity of common shelves, the Open ROADM MSA chose the functional disaggregation first. We defined three optical functions: pluggable optics, transponder and ROADM (the optical switch part with amplifiers, couplers, WSS, etc.). Common shelves can be introduced at a later point for some functions, like transponders, if they make sense as an extension of the models.   All of the three disaggregated functions (pluggable optics, transponder and ROADM) are controllable through an open standards-based API (written in the data modeling language YANG) that can be accessed through a...
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