TVG-Series System Guide v1-4 - SerVision

SerVision
TVG System Guide
on. If you wish, you can replace any or all of the time servers on the list with other time servers, or add additional
time servers, to a maximum of ten servers. The list can include time servers on the internet and on a local network.
For the MVG and the CVG-M, you can choose to use GPS-based time synchronization if GPS is enabled for the
unit (see Configuring GPS, page 26). When you choose this option, the unit clock is constantly updated via GPS.
To enable automatic NTP-based time setting:
1. In the Date & Time Settings screen, if the GPS Time field appears, clear the Enabled checkbox.
Note: The GPS Time field only appears for the MVG and CVG-M, and only if GPS is enabled in the
General System Settings screen (see Configuring GPS, page 26).
2. Under Update Frequency, select the interval between time checks, in hours.
3. Click Update, and then save the settings. They will be implemented after the unit is restarted (see Saving
Configuration Changes, page 125).
To enable automatic GPS-based time setting:
1. In the Date & Time Settings screen, under GPS Time, select the Enabled checkbox.
2. Click Update, and then save the settings. They will be implemented after the unit is restarted (see Saving
Configuration Changes, page 125).
To disable all automatic time setting:
1. In the Date & Time Settings screen, if the GPS Time field appears, clear the Enabled checkbox.
2. Under Update Frequency, select Disabled.
3. Click Update, and then save the settings. They will be implemented after the unit is restarted (see Saving
Configuration Changes, page 125).
To specify other time servers when NTP-based time-setting is enabled:
1. In the Date & Time Settings screen, under Time Servers, add the IP addresses or hostnames of additional
time servers to the list, or replace existing IP addresses or hostnames with those of the time servers you want
to use, as required.
Note: Most time servers use port 123. If a time server you want to use uses a different port, you must specify
the port after the IP address or hostname. (Separate the address and the port with a colon (:). For example:
192.168.1.15:345)
2. Click Update, and then save the settings. They will be implemented after the unit is restarted (see Saving
Configuration Changes, page 125).
LAN Settings
The LAN settings define how the TVG should connect to a cabled LAN – a local network to which it is physically
connected through an Ethernet network cable (connected to the Ethernet Out connector). These settings are only
relevant if the unit is connected to an external network via Ethernet cable. (For information about connecting the
unit to an external network, please refer to the unit’s installation guide.)
Configuring System Settings 38