SerVision MVG200, Configuration And Management Manual, Page: 39 / 241

SerVision Embedded Video Gateway System Guide
Configuring System Settings 38
attempts to connect, it begins with the first server listed. If it fails to connect to that server, it tries the next on the
list, and so 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 88). When you choose this option, the unit clock is constantly updated via GPS.
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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 88).
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 156).
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To enable automatic GPS-based time setting on the MVG or CVG-M:
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 156).
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 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 156).
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 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 156).
LAN Settings
The LAN settings define how the Video Gateway 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.)
NOTE:
MVG400 and UVG400 units have a built-in router. The LAN settings described here define how the
router connects to the external LAN, not how the unit connects to the internal LAN managed by its
router. The connection between the unit and the router is handled automatically by the system and does
not require any configuration (see
Port Forwarding , page 55).