Comtech EF Data SNM-1001L - Manual (Page 90)

SNM-1001L Satellite Modem Revision 1
Front Panel Operation MN/SNM1001L.IOM
4–26
4.3.1.3 FUNCTION SELECT: CONFIGURATION INTERFACE
CONFIGURATION
INTERFACE
Press to review or edit the following sub-menus.
FUNCTION SELECT: CONFIGURATION: INTERFACE:
TX CLOCK SOURCE
TX CLOCK SOURCE
TX TERRESTRIAL
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 is
also the fallback clock).
Note: When loop timing is enabled, SCT (LOOP) is displayed
instead of SCT (INTERNAL).
EXT. CLOCK/DATA CLOCK Sets the TX clock to operate from the external reference clock (Ext
Clock).
TX Data Rate and Ext Clock frequency shall match or unless the
ASLT option is installed. The correct frequency must be
programmed into EXT-CLK FREQ.
Upon entry, the current transmit clock setting is displayed. Press [ ↑] or [↓] to make the selection.
Press to execute the change.