82 43-TV-25-30 Iss.6 GLO Aug 07 UK
SNTP
(Main Menu > Configure > Setup > Edit Setup > Comms > Comms Services > SNTP)
Simple Network Time Protocols is a protocol for synchronising the clock on the recorder with
a Network Server.
• Server Enable - Toggle On and Off. Activate this to make this recorder the server.
Other recorders, set up as clients, can synchronise their time to this server recorder.
• Client Enable - Toggle On and Off. Activate this to set this recorder to synchronise time
with the server. See
Figure 4.7 on page 82.
• Server Name - (up to 32 characters). Only available when Client Enable is active. This
is the name of the Network Server that can be used for time synchronisation. Enter the
server name to be used for time synchronisation (this could be a Time Server on the
internet or on your network). If a recorder is acting as the Server, the Client recorders
must have the recorder’s network ID. eg. xs-nnnnnn, this is the 6-digit Serial number.
See “System” on page 156 for the recorder’s serial number.
• Period - Only available when Client Enable is active. Select and enter the time period in
seconds required between checking and updating the time using the on-screen key-
board. This will be between 600 and 3600 seconds.
• Threshold - Only available when Client Enable is active. This is a specified amount of
time (in seconds) that the recorder clock must be within to ensure synchronisation with
the network server. Eg. if set to 3600 the recorder time must be within 1 hour of the net-
work server to ensure time sync will take place.
Client/Server Network
Figure 4.7 on page 82 shows a Network Server at the top, a recorder acting as both a
server and a client in the middle and a string of client recorders at the bottom. A recorder
can be set up to be a server and a client. Setting it as both means this recorder will synchro-
nise time with the network server. But will also allow other recorders to time sync with it. This
saves many recorders trying to time sync with the network server.
When the configuration is complete select the Finish button to Commit, Discard or Commit
Later. Select the Back button to return to the previous menu.
Figure 4.7 Client/Server network
When using time synchronisation
via SNTP, always make sure that
the recorders and the PC if any
are configured to the same time
zone. See “Localisation” on
page 107
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