Applications
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ST2400A SDH Test Set User Manual
Older ST2400/ST2400A SDH versions and STM-16c
Older ST2400/ST2400A instruments can be used to receive and monitor STM-16c SDH signals.
An ST2400A with Option 41 can receive, generate and modify STM-16c signals. The Basic
instrument provides capabilities for the following measurements:
LOS
Loss of Signal
LOF
Loss of Frame
OOF
Out of Frame
B1/B2
Performance monitoring
REI
Remote End Indication
RDI
Remote Defect Indication
BER
BER measurements based on B1 and B2 errors
With concatenated signals, the H1 and H2 byte 1 locations contain the location of the payload start
container. All other H1 and H2 byte (locations 2 to 48) contain a unique data pattern identifying
the data as concatenated.
These patterns, according to ITU-T G.703, are:
H1= 1001xx11
H2 = 11111111
When monitoring concatenated signals, lower rate signals can not be dropped. This capability to
monitor concatenated signals is a RX-only function in older ST2400 and ST2400A models.
STM-16c signals must be generated from a network element.
Again, an ST2400A with Option 41 can receive, generate and modify STM-16c signals.
Summary of Contents for ST2400A
Page 7: ...ST2400A SDH Test Set User Manual vii Index I 1...
Page 12: ...General Safety Summary xii ST2400A SDH Test Set User Manual...
Page 13: ...Getting Started...
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Page 24: ...Operating Basics...
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Page 44: ...Reference...
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Page 94: ...Reference ST2400A SDH Test Set User Manual 3 49...
Page 95: ...Appendices...
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Page 113: ...Specifications SDH ST2400A SDH Test Set User Manual A 17...
Page 134: ...Factory Defaults C 4 ST2400A SDH Test Set User Manual...