System Tab
SONET/SDH Application
377
Clock Synchronization
³
Frequency
: The Frequency alarm indicates if the received signal rate
meets (green) or not (red) the following rate specifications.
Frequency Analysis
³
Frequency (bps)
displays the received signal rate in bps for DS1 and
E1 interfaces and in Hz for 2 MHz interface.
³
Frequency Offset
displays the positive or negative frequency offset
between the standard rate specification and the rate from the received
signal. Frequency unit can be set to
bps
, or
ppm
for DS1/E1 and is set
to Hz for 2 MHz. The default setting is
bps
for DS1/E1 and
Hz
for 2 MHz.
Signal
Rate specification
DS1
1544000 ±15 bps (±9.2 ppm)
E1
2048000 ±19 bps (±9.2 ppm)
2MHz
2048000 ±19 Hz (±9.2 ppm)
Содержание FTB-8100 Series
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