This index contains systems cleared for public reference. Operational configuration, location, and client assignments are omitted.
| System | Class | Introduced | Public status |
|---|---|---|---|
| KZ-04 | Fixed relay | 1983 | Retired |
| KZ-09 | Archive relay | 1987 | Archival |
| KZ-11 | Remote continuity node | 1989 | Record restricted |
| KZ-21 | Distributed relay | 2004 | Service |
| AR-6 | Archive verifier | 2012 | Service |
Index reference RD/SYS/PUB-26. Entries may reflect archival naming rather than current deployment identifiers.
