User`s manual

VTI Instruments Corp.
40 EX7000 Series Web Page Operation
NOTE If problems are experienced connecting to the EX7000, please refer to the Network
Troubleshooting process in Section 2.
TIME CONFIGURATION
This entry page is used to change the time configuration of the EX7000. As the EX7000 has no
notion of “wall clock” or calendar time and no battery-backed clock or any other mechanism to
retain time between reboots and power-cycles, the time must be set by the user. By default, the
instrument’s time and date at power-up are midnight, January 1, 1970 (the beginning of the
“epoch”). Three time source options are provided: PTP (Precision Time Protocol or IEEE 1588
synchronization), SNTP (simple network time protocol), or manual. The default time source is
PTP (see Figure 4-8).
F
IGURE 4-8: EX7000 TIME CONFIGURATION WEB PAGE – DEFAULT
• Time Zone: allows the user to select an appropriate time zone.
• Time Source: allows the user to set the EX7000s date by entering the month (MM), day
(DD), and year (YYYY), respectively.
• Set Time: allows the user to set the EX7000s time by entering the hour (HH), minute (MM),
and second (SS), respectively. If the EX7000 is set as an IEEE 1588 Master, the hour should
be entered using the 24-hour format.
• Time Status: this section of the web page provides the mainframe’s current time
configuration settings.
Selecting SNTP from the Time Source menu, the EX7000 can synchronized with an SNTP
server. The Time Zone drop menu allows the user to select the local time zone. SNTP or NTP
(Network Time Protocol) servers are specified in the NTP Servers field, by IP address or
hostname. Once configured, the user must click Submit in order for the changes to take affect.