To change the module parameters:
Select the appropriate framing mode in the Mode drop-down box (ESF or D4 for DS1 modules and CCS or CAS for E1 modules).
Select Acquire or Locked in the Min Clock drop-down box.
Select ENABLED or DISABLED in the Clk C Bypass drop-down box. Set to Enable when an initial input reference port is used as the Clock C pass through.
Select ON or OFF in the Zero Suppression drop-down box. ON eliminates leading zeros.
Select ON or OFF in the CRC Generation drop-down box (shown on E1 modules only). ON verifies correct transmission of data block.
Select numbers 4 through 8 in the SSM Bit drop-down box (shown on E1 modules only).
Click OK to accept changes and return to the Module Configuration screen, or Cancel to return to the Module Configuration screen without saving changes.