Comtech EF Data SNM-1010L - Manual (Page 67)

SNM-1010L Data/Control Modem Revision 0
Front Panel Operation MN/SNM1010L.OM
3.4.1.3 CONFIGURATION:INTERFACE
CONFIGURATION
INTERFACE
3.4.1.3.1 CONFIGURATION:INTERFACE:TX CLOCK SOURCE
TX CLOCK SOURCE
SCT (INTERNAL)
Programs the clock source for the modem transmitter clock to the following
configurations:
TX TERRESTRIAL Sets the TX clock to recover timing from the incoming
clock/data.
SCT (INTERNAL) Sets the TX clock to operate from the modem internal clock
(this also is the fallback clock).
Note: When loop timing is enabled, SCT (LOOP) is displayed
instead of SCT (INTERNAL).
EXT CLOCK,DATA CLOCK
[EXT. CLOCK] Sets the TX clock to operate from the EXT-CLK clock. Transmit
clock source must be phase/frequency locked to the data that
is being transmitted. The correct frequency must be
programmed into EXT-CLK FREQ.
Upon entry, the current TX clock source is displayed. Press [
↑ ] or [↓ ] to make the
selection. Press to execute the change.
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