Technical data

Automatic System Time Synchronization 3-13
Chapter 3: System Features
MBX IP Description / Operations & Programming Guide
DST Enable (PGM 233 - FLEX 3) … see details on page A-97
DST Start & End Time … use Web Admin (PGM 233)
RELATED FEATURES
Auto Service Mode Control … see page 3-10
Automatic System Time Synchronization … see page 3-13
System Clock Set … see page 7-42
Automatic System Time Synchronization
When enabled, the system automatically determines and sets the time of day employing
Network Time Protocol (NTP) or ISDN time messages. When using NTP, the system requests
and receives GMT time at ten-minute intervals from the specified NTP time server. This feature
allows the System Time to synchronize with the NTP time server automatically. If the time
deviates more than two seconds, the system clock is adjusted to match the NTP server.
When using ISDN, the system receives the time of day in ISDN messages and automatically
adjusts the time if the system time deviates from the ISDN time.
CONDITIONS
- NTP packets are expected over UDP port 123; verify the port is open and available.
- A secondary NTP server address can be defined should the first server not respond.
- If set, the system adjusts for the local time zone assigned in the system as the
Standard System Time as well as Daylight Savings Time (DST).
OPERATION
System
Operation of this feature is automatic.
PGM 233 BTN RANGE DEFAULT
DST START TIME -- the DST start time. Web
Only
See DST Table 2nd Sunday of March
at 2:00 AM
DST END TIME -- the DST end time. Web
Only
See DST Table 1st Sunday of
November at 2:00 AM
Release 1.0
November 2010