• Topic ID: id_15460506
  • Version: 2.0
  • Date: Nov 8, 2018 1:37:03 AM

Network Time Protocol (NTP) Setup

Prerequisites

Overview

The following procedure describes and illustrates connecting a system to a hospital or clinic Network Time Protocol (NTP) Server.

NTP is a protocol for synchronizing the clocks of computer systems over a network. On a Local Area Network (LAN), NTP can be used to synchronize all clocks to the same time scale. Below are a couple of the benefits to connect the system to a NTP server:

  • Synchronize time between multiple systems (CT to CT)

  • Synchronize time between system and data storage (CT to PACS)

  • Maintains time to prevent any system time jumps or discrepancies.

note:

It is best to first discuss with the site's IT Department to determine if there is a specific Service IP Address preferred to connect to (e.g. same IP Address as PACS or other CT systems). If an IP Address is provided, skip to step 2.

Procedure

  1. Using a PC connected to the site's local network, determine the NTP server available.
    1. On LAN connected PC, select START button, then Run.
    2. Type: eventvwr.mscENTER
    3. Select System
    4. Double-click W32Time

      Figure 1. Event Viewer

    5. In the Event tab, look in the Description section

      Figure 2. Event Properties

    6. Record IP Address from Description.
  2. Ping the IP Address on the system.
    1. Open a Unix shell on the scanner.
    2. Type: ping 3.57.52.193 ENTER
      note:

      Use the IP Address you recorded previously.

      Figure 3. Ping

  3. Perform system config to update the scanner to use NTP.
    1. Become root:

      1. Type: su -ENTER

      2. Enter root password.

    2. Type: reconfig
    3. Select CONFIG
    4. Select NETWORK tab.
    5. Enter the IP Address previously recorded in the NTP section.

Finalization

No finalization steps.