120 20130-101a
GeminiG3 – 700MHz User Manual
28
4.7.3.8 Setup
(Advanced)
►
Time Source
To facilitate tracking of events in a network, the Paragon3 base station and the GeminiG3 mobile can ini-
tialize their real-time clocks using a number of protocols. At reset time, the Paragon3 can use the SNTP
protocol (RFC2030) to pick up the current UTC (Universal) time. Setting the “TimeZone” and “Daylight
Savings” options allows displaying the correct local time in the “Unit Status” page.
Figure 21 - Advanced IP Configuration – Time Source
Item
Description
Time Source
♦
GPS – No on-air penalty, very accurate
♦
AirlLink – Light on-air penalty, least accurate
♦
SNTP – Medium on-air penalty, medium accuracy
Place a check mark against each of the available time sources to be used on
your network. The preference order is GPS, Airlink, and SNTP.
GPS is not available for the GeminiG3 Lite model.
AirLink time source originates in the Paragon3 base (providing the base is
time-aware)
SNTP is a UDP/IP protocol that synchronizes the clocks of computer systems
over packet-switched, variable-latency data networks.
Refresh Period
Determines the interval in seconds before a time update will be accepted from
the time source in use.
Source
Selection
Refresh Timeout
Determines the interval in seconds after which the source selection will switch
to the next available time source in the preference order (providing it has been
selected).
Client
Disabled (Default), Enabled
Server address
IP of the SNTP Server in dot decimal format
SNTP
Period
Period at which the SNTP Server is polled
TimeZone
Select from drop-down list
Time
Zone
Daylight Savings
Disabled (Default), Enabled