1 Installing Network Time Protocol (NTP)

NTP (Network Time Protocol) is a network protocol that enables you to synchronize the clocks on devices over a network. It uses one or more NTP servers to maintain a highly accurate time, and allows clients to query for this time.When clients query the server they automatically adjust their own internal clocks to mirror the NTP server. The Network Time Protocol (NTP) application must be installed on the EK80 Processor Unit.

Prerequisites

To download the software you need a computer connected to the Internet.

Context

Installing an Network Time Protocol (NTP) application is a requirement if your EK80 Processor Unit is connected to acoustic Doppler current profiling (ADCP) hardware. The EK80 requires synchronized reception of the KM Binary datagram. The NTP application ensures that the EK80 and the ADCP hardware are synchronized to the vessel’s master clock.

Note

The screen captures are taken from software version 4.2.8. The manufacturer may change these in later releases.

Procedure

Open a web browser.

Type the following URL in the address field:

https://www.meinbergglobal.com/english/sw/ntp.htm

Download and install the latest release of the NTP application.

"NTP for Windows XP and newer, with IPv6 support"

Example: ntp-4.2.8p14-win32-setup.exe

Select I agree for license agreement.

Keep the suggested Destination Folder for Installation Location.

Select Next to continue.

Select Installation Components.

Select the following options by checking the check boxes:

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NTP Dameon

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NTP Tools

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NTP Documentation

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Create Start menu

Select Next to continue.

Select configuration file settings.

Select the following options by checking the check boxes:

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Location of configuration file: C:\Program Files (x86)NTP\etc\ntp.conf

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Create an initial configuration file with the following settings

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Predefined public NTP servers: None.

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Specify the NTP server IP address: 10.124.24.200 (Use the IP address of your Master clock, this is an exmaple)

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Use fast initial sync mode (iburst)

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Add local clock as a last resort reference, Stratum: 12

Select Next to continue.

Select No for not reviewing the generated config file.

Select service settings in the Setting up NTP servicepage.

Select the following options by checking the check boxes:

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SYSTEM account

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Start NTP service automatically

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Disable other Time Services eventually installed (e.g. W32Time, other NTP flavours)

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Start NTP service right after installation

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Allow big initial timestep (<1000 s)

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Enable Multimedia Timer at startup

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Check Firewall Settings

Select Next to continue.

Select Finish to close the wizard.