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SDM-300L3 Satellite Modem
Front Panel Operation
FUNCTION SELECT: UTILITY: INTERFACE: TX DATA PHASE
TX data phase relationship. Use this option to select Normal or Invert for the TX data
relationship to the selected TX clock.
FUNCTION SELECT: UTILITY: INTERFACE: RX DATA PHASE
RX data phase relationship. Use this option to select Normal or Invert for the RX data
relationship to the selected RX clock.
FUNCTION SELECT: UTILITY: INTERFACE: E1 INSERT CRC
(CONDITIONAL)
IMPORTANT
E1 INSERT CRC enables function. Use this option to turn the CRC-4 on the insert side
of the E1 ON or OFF. The default for this function is ON. If the equipment cannot use the
CRC-4 signal, disable the signal by selecting OFF.
TX DATA PHASE
NORMAL
RX DATA PHASE
NORMAL
E1 INSERT CRC
Conditional: This menu is displayed if the optional Overhead card is
installed and the optional D&I feature is enabled.
ON
4–104
Revision 1
MN/SDM300L3.IOM
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