Citizen TSV-400GP, Инструкция по эксплуатации

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Time Server Function
The GPS antenna needs to have a stable reception to enable the time server to
operate.
○ Relationship Between Reception Condition and Time Server Operation
GPS Reception Condition Time Server Function
Power on - before reception is confirmed No function
Successful reception (during GPS sync)
(Reception monitor flashes green every 2 seconds)
OK
24 hours passed since the last reception (Reception
monitor flashes red every 2 seconds)
No function
To check whether or not this device is operating as a time server, use a web browser
to check the System Information screen. (See P.17) The SNTP Server Status is
Running.
○ Syncing Time with the Time Server
Connect the devices that you want to sync to this device using network cables. The
devices to be synced must support NTP (Network Time Protocol) or SNTP (Simple
Network Time Protocol). (Either version 3 or 4)
Set the time server (this device) IP address as the reference location for time syncing
on the device to be synced. The initial setting is 192.168.0.200. This enables periodic
time syncing. For details, see the instruction manuals of each of the connected
devices.
○ NTP Year 2036 Problem
In NTP (Network Time Protocol), the number of seconds from the base point of
00:00:00 (UTC) on 1 January 1900 is calculated in 32-bit integers, and as a result
integer overflow will occur from 06:28:15 (UTC) on 6 February 2036 causing
erroneous calculations. This device will not malfunction after 2036 because it
references sign bits from internal processing, and therefore this problem will occur in
the NTP/SNTP client software and operating system processing, not on the time
server side. As some devices are not supported, it is necessary to check each device in
the usage environment.