Function select: utility: interface: tx data phase, Function select: utility: interface: rx data phase – Comtech EF Data SDM-300L3 User Manual
Page 172
SDM-300L3 Satellite Modem
Revision 1
Front Panel Operation
MN/SDM300L3.IOM
4–104
FUNCTION
SELECT:
UTILITY: INTERFACE: TX DATA PHASE
TX DATA PHASE
NORMAL
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
NORMAL
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)
E1 INSERT CRC
ON
IMPORTANT
Conditional: This menu is displayed if the optional Overhead card is
installed and the optional D&I feature is enabled.
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.