In order to ensure the migration from SIS 1+ to SIS II, the following components shall be made available to the extent necessary:

1. (a)

   the C.SIS and the connection to the converter;

2. (b)

   the communication infrastructure for SIS 1+ allowing the C.SIS to communicate with the N.SIS;

3. (c)

   the N.SIS;

4. (d)

   Central SIS II, NI-SIS and the communication infrastructure for SIS II allowing the Central SIS II to communicate with N.SIS II and the converter;

5. (e)

   the N.SIS II;

6. (f)

   the converter.