Features; Clocking Parameters And Schemes; Clock Selection Possibilities - Newtec AZ420 User Manual

Features

6 FEATURES
6.1

Clocking Parameters and Schemes

6.1.1

Clock Selection Possibilities

Figure 11 - Clock Selection Possibilities
There are three Master Clock Selection possibilities:
• Internal clock;
• External G703;
• 10Mhz input (optional).
The master clock selection determines the clock that is used to feed the NCO
(Numerically Controlled Oscillator). The NCO synthesizes the clock for internal
clock selection and the clock from satellite. In most cases "Internal clock" is
selected.
In some special cases a clock is derived from a separate clocking G703 different
from the G703 carrying data, master clock "External G703" needs to be selected.
When a 10 MHz option board is installed the 10 MHz reference clock can be used.
version 2.0
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User Manual for AZ420 Telco Satellite Modem
SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS