ESI-50L Administrator’s Manual Function 2: CO lines
B.2
Function 142: Automatic time setting
1: Synchronize with CID
This function, when enabled, synchronizes the real-time clock with Caller ID (CID) messaging: call
processing compares the time of a CID message to the system real-time clock and, if the difference is
more than two minutes, resets the real-time clock to match the time (hours and minutes) of the CID
message. The system will analyze each such message (or — if it receives more than four calls with CID
information within a one-minute period — as is needed). Select ENABLE or DISABLE by pressing a scroll
key (either
or
). Choosing ENABLE will allow the CID data to update the time and date.
Default: Enabled.
2: Adjust for Daylight Saving Time
This function, when enabled, causes the real-time clock to adjust itself automatically for Daylight Saving
Time (DST). Select AUTO or DISABLE for DST by pressing a scroll key (either
or
). Choosing
DISABLE is best for those areas that don’t observe DST.
Default: Disabled.
Note: If this function is enabled and it causes an automatic time change, the system won’t update the real-
time clock from Caller ID messages (Function 1421, above) for 25 hours before and 25 hours after
the time change is due to be effective (i.e., 2:00 AM Sunday).
Function 143: Clock adjustment
This function lets the Installer or Administrator have the system automatically compensate for a clock that’s
running too fast or too slow. The clock adjustment speeds up or slows down the clock over a 30-day period by
the amount selected. If the system clock is running slow, select a positive value. If the clock is running fast,
select a negative value.
Range: -2 to +5.5 minutes. Default: 0.
Example: If the clock is running two minutes fast over a month, select -2 (minus two minutes)..
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