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Port Tabs
SONET/SDH Application
123
Port RX (Electrical Interfaces)
Frequency Analysis
The FTB-8100 Series allows the following frequency monitoring range.
³
Actual Frequency (bps)
: Indicates the frequency of the input signal.
³
Frequency Offset
: Indicates the offset between the standard rate
specification and the rate of the input signal.
³
Max. Positive Offset
: Indicates the offset between the standard rate
specification and the largest rate recorded from the received signal.
³
Max. Negative Offset
: Indicates the offset between the standard rate
specification and the smallest rate recorded from the received signal.
Offset Unit
: Allows the selection of the frequency offset unit. Choices are
bps
and
ppm
. The default setting is
ppm
.
Interface
Standard Rate Specification
DS1
1544000 ±140 ppm
E1
2048000 ±100 ppm
E2
8448000 ±100 ppm
E3
34368000 ±100 ppm
DS3
44736000 ±100 ppm
STS-1e/STM-0e
51840000 ±100 ppm
E4
139264000 ±100 ppm
STS-3e/STM-1e
155520000 ±100 ppm
Summary of Contents for FTB-8100 Series
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