User Guide User guide

Appendix C: Time Synchronisation

NTP Server Settings

Adding servers to an existing NTP server list

QBox

Installation & Operation

Guide

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C.4: NTP Server Settings

The following NTP server functions can be set in the onscreen menus:

• Adding NTP servers to an existing NTP server list.

• Disabling the iBurst function

• Specifying an undisciplined local clock.

NOTE: When you make changes to any NTP setting, messages are displayed

stating that the NTP daemon has been stopped and then restarted.

C.4.1: Adding servers to an existing NTP server list

NOTE: The list of available NTP servers is empty for a new QBox.

1. Open the onscreen menu by pressing the F8 key on the keyboard attached to the

QBox.

2. Select the Configure QBox option and press Enter.

3. Use the Right arrow key to select Time and Date.

4. Select NTP Server Settings and press Enter to display a list of time servers.

5. To add a time server, press the Down arrow key to select a server, and then press the

Insert key to add it.

A dialogue box is displayed requesting the DNS name. Press the Tab key. The FQDN

(Fully Qualified Domain Name) DNS name is displayed.

6. Enter the FQDN (Fully Qualified Domain Name) DNS name. The FQDN allows

the name of the server to be resolved.

7. Press the Tab and then Enter key to confirm the action. The DNS server is entered

into the list.

NOTE: After your QBoxes and computers to use an NTP time source, It takes

approximately one hour for the software to calibrate itself and calculate drift

information.

During this time, do not switch off, log off your computer nor allow it to go

into hibernation mode.

C.4.2: Disabling the iBurst function

The iBurst function can be disabled to manage network traffic according to the specific configura-

tions of the network deployment.

1. Bring up the onscreen menu by pressing the F8 key.

2. Select Configure QBox and press Enter.

3. Use the Right arrow key to select Time and Date, and press Enter.

4. Select NTP Server Settings and press Enter to display a list of time servers.

5. To turn off the iBurst option, press the Tab key and press the Space bar.

6. Press Enter. A message is displayed in the Configure QBox menu that the NTP

daemon has been restarted.