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