This screen presents an on-line frequencimeter (RX RATE) that displays the estimated
receive rate in kbps and the deviation (RX CLK DEV) from the nominal chosen transmission rate.
The receive clock deviation (RX CLK DEV) is calculated following this rule:
(RX RATE - Nominal Rate) / Nominal Rate
where Rx Rate is the measured value of the reception clock and the Nominal Rate is the defined
value for transmission clock (Tx Rate).
Even if the Tx Clock Source is defined as EXTERNAL, it is possible to choose a nominal
rate using the Tx Rate value. Follow these steps:
1. Stop the test (START/STOP key)
2. Change the Tx Clock Source to INTERNAL
3. Choose the desired value to the nominal rate in the Tx Rate option
4. Change the Tx Clock Source to EXTERNAL
5. Restart the test (START/STOP key)
By pressing the <F4> (NEXT) key the alarm screen is shown. For both the ALARMS screen
and for the RATES screen the <F2> (MENU) key takes the user back to the Menu screen.
The alarms displayed depend on the selected mode and interface. The screen shown below
refers to the G.703 - 2M interface using synchronous mode only, but a description of all alarms
follows.
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