Think of a LOGLINK target as the electronics which receive signals,
the eventual destination:
- CCIs (Controller channel interfaces)
- XCIs (Crossbar channel interfaces)
- SIs (String interfaces)
- PORTs (Switch ports, when used as CHPID ports, or ports connecting
to chained switches)
- CHPIDs (when used in point to point CTC connections and Coupling
Facility connections)
- CONVERTRs (the "top" of the converter. Both sides of the converter
must be connected.)
- PATCHPRTs (only when permanently connected on one side, and not
connected on the other)
Note: Not all combinations are possible or meaningful.
For example, it is not possible to create a series between a string
interface and a CHPID.