39PLMN IDs, separated by commas.NL Sync Cell Information (display):Provides the result of NL synchronization; contains cellinformationGeographic Location Information (display):Provides the result of GPS synchronization; contains thegeographic location informationSatellite Information (display):Provides the result of GPS synchronization; contains thesatellite information5.3.4 License ManagementUse the License Management menu (Figure 5-17) to upload certificate files, such asregulatory approval documents, for the Neutrino eNB you are configuring. Click on SelectFile, navigate to the file on a local computer, and then select Import License to upload it.After uploading, the license file will display in the license list.Figure 5-17: License Management5.4 System5.4.1 NTPThe operator may use up to 3 Network Timing Protocol (NTP) services to provide correct time-of-day to the eNB. When multiple NTPs are configured, one acts as the master NTP serviceand the others are for backup.Go to System > NTP (Figure 5-18). Refer to Table 5-12 for a description of each field. Whenfinished, click on Save to retain the configuration.