TCM Standards
The Tandem paths are defined in ITU recommendation G.707 Annex D and Annex E. ITU-T recommendation G.707 defines a
tandem connection source and sink and describes the responses of each when defect (alarm) and error conditions are detected.
Tandem connection maintenance signals are carried in the Z5 byte for STS-N and in the Z6 byte for VT's. These two bytes are
structured similarly, but their functions are not identical.
10.2.10 Round Trip Delay
The Round Trip Delay (Propagation Delay) measurement works by sending a test pattern. Errors are transmitted in the pattern.
The time it takes for the error to reach the receiver is the propagation time through the network.
Round Trip Delay Results
RXT-3900 e-Manual D07-00-111P Rev A00
Summary of Contents for RXT3900
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