VXi EX7000 User Manual

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EX7000 Series Web Page Operation 
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This entry page is used to change the time configuration of the EX7000. By default, the instrument 
has no notion of “wall-clock” or calendar time. The instrument has no battery-backed clock or any 
other mechanism to retain time between reboots and power-cycles. By default, the instrument’s 
time and date at power-up are midnight, January 1, 1970 (the beginning of the “epoch”). The time 
and date can be manually specified on the Time Configuration page (Figure 4-6).  Manual 
configuration will be necessary if the network environment is such that the instrument cannot 
reach the Internet. Manual time entry is not affected by the Time  Zone control and does not 
require an instrument reboot to be activated. However, manually-specified time is volatile, and, 
therefore, must be reentered upon an instrument reboot or power cycle. It is not, however, affected 
by the Reset page. 
 
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Optionally, the EX7000 supports SNTP (Simple Network Time Protocol), allowing it to receive its 
time from an SNTP server. The Time Zone control provides a pull-down selection in which the 
user’s specific time zone is selected. SNTP or PTP (Peer-To-Peer Time Synchronization or IEEE 
1588) servers are specified in the Server configuration panel, by IP Address or hostname. An 
instrument reboot is then required to activate the new selection.