Test Functions
Power Blazer
593
OH - SONET/SDH
F1
: User/User Channel. This byte is reserved for user purposes. This
byte is only defined for the first STS-1/STM-1 frame of a composite
signal.
D1
,
D2
, and
D3
: Data Communications Channel (DCC). Provides a
192 Kbit/s data communication between two STEs for operation
functions such as OAM&P. These bytes are only defined for the first
STS-1/STM-1 frame of a composite signal.
Transport OH - Line/MS
H1
and
H2
: Pointer.
SONET: H1 and H2 bytes are combined to form a pointer indicating
where the path overhead begins within each SPE.
SDH: H1 and H2 bytes are combined to form a pointer indicating where
the VC (Virtual Container) frame begins within each SPE.
Bits 5 and 6 of the H1 byte represent the SS bits and are configurable as
follows:
H3
: Pointer Action. H3 is an extra byte used to compensate for the SPE
timing variation. The H1 and H2 pointer tell the receiver when the H3
pointer is used.
SONET: This byte must be defined in every STS-1 to STS-n frame of a
composite signal.
SDH: This byte must be defined in every STM-1 of an STM-N signal in
the event of negative justification, otherwise it is not defined.
SS Bits
Description
00
SONET
01
Undefined
10
SDH
11
Undefined
Содержание Power Blazer 88000 Series
Страница 1: ...User Guide 88000 Series Power Blazer HIGH SPEED MULTISERVICE TEST MODULE ...
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Страница 58: ...Test Setup Test Applications 46 88000 Series OTN BERT ...
Страница 64: ...Test Setup Test Applications 52 88000 Series SONET SDH BERT For SDH BERT ...
Страница 69: ...Test Setup Test Applications Power Blazer 57 SONET SDH DSn PDH BERT For SDH ...
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Страница 707: ...Glossary Power Blazer 695 10G Ethernet Client The following figure presents a typical network application ...
Страница 721: ...Glossary Power Blazer 709 Ethernet Cables Straight Through Cable 1000 Mbit s Crossover Cable 1000 Mbit s ...
Страница 765: ...Glossary Power Blazer 753 SONET DSn SDH PDH The GUI Grid indicates the TUG 2 x and TUG 3 x values ...