System clock display mode, which range from 1 to 3, stands for default mode, UTC mode and other clock mode which is made to prepare for fulture respectively. It allows network administrator to change system clock mechanism by setting this variable. For instance, if administrator intend to use default display mode, the time will be shown as 'yyyy-mm-dd, hh:mm:ss'. else if if administrator intend to use UTC display mode, the time will be shown as'dd.mm.yyyy-hh:mm:ss' All supported values of this variable are listed as follows: 1: EraisecomClockDisplay_DFLT default mode 2: EraisecomClockDisplay_UTC UTC mode 3: EraisecomClockDisplay_other other mode.