Comtech EF Data SDM-300L3 - Manual (Page 97)

SDM-300L3 Satellite Modem Revision 1
Front Panel Operation MN/SDM300L3.IOM
4–29
FUNCTION SELECT: CONFIGURATION: INTERFACE:
BUFFER CLOCK
BUFFER CLOCK
RX (SATELLITE)
Programs the interface buffer output clock to one of the following modes:
RX (SATELLITE) Sets the output buffer clock to the satellite clock.
(Bypasses the buffer.)
SCT (INTERNAL)
Sets the buffer clock to operate from the modem internal clock. This is
also the fallback clock
EXT. CLOCK Sets this clock source to the external clock.
TX TERRESTRIAL Sets the buffer output clock to recover timing from the incoming TX
data clock.
INSERT CLOCK Selects the recovered clock from the insert send data input received
from the terrestrial equipment.
Upon entry, the current setting of the plesiochronous buffer clock is displayed. Press [
↑ ]
or [ ↓ ] to make the selection. Press to execute the change.
FUNCTION SELECT: CONFIGURATION: INTERFACE:
RX CLOCK PHASE
RX CLOCK PHASE
NORMAL
Programs the RX clock phase to Normal or Inverted.
Upon entry, the current status of the RX Clock is displayed. Press [
↑ ] or [ ↓ ] to make the
selection. Press to execute the change.