ECDIS Chart Provisioning
NSR ECDIS NES-3000 supports reading and display of ENCs in IHO S-57 format, edition 3.1. ENCs are provided by chart data providers as exchange sets, in accordance with the IHO S-63 standard, in encrypted form. NSR ECDIS NES-3000 can also install unencrypted ENCs provided they include the mandatory CATALOG.031 file.
Important
Exchange sets without the CATALOG.031 file are not supported!
Exchange sets are transmitted via Internet services (e-mail, FTP) together with X.509 root certificates and cell permits required for decrypting ENC cells. To install ENCs in ECDIS, the data must be written to a prepared USB medium.
Ordering ENCs requires a User Permit, confirming that the software manufacturer has passed the IHO S-63 standard compliance check and is a registered IHO OEM.
User Permit Location
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→ 
→ System Information → User Permit
To avoid transmission errors, it is recommended to save the USER PERMIT as a text file on external media and send it to the provider by e-mail.
Exporting the User Permit
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The received encrypted ENC data set contains: base ENC cells, ENC updates, external files (*.pdf, *.png, *.bmp, *.jpg, *.txt), IHO X.509 certificate (Scheme Administrator (SA) Digital Certificate), the CATALOG.031 catalogue, and cell permits. The encrypted set may be packaged in a *.zip or *.tar.gz archive.
Important
ECDIS supports installation of certificates, ENC licenses, and charts from zip and tar.gz archives written to a USB medium. Installation of data from nested archives at the second level or deeper will not be performed.
The recommended file system for the USB medium is **FAT32**.
It is NOT recommended to install ENC exchange sets from media containing large amounts of other data: ECDIS will require more time to scan all folders and archives on the medium.
Important
When installing a large ENC set (e.g., the world chart collection), the installation process may take a significant amount of time.
Installing update sets on large ENC collections may also take a considerable amount of time.
Consider these characteristics when managing the shipboard ENC collection and perform ENC installation and updates well in advance.