ENF 48 and system logger initialization

When system logger initializes and is available, the following ENF 48 indicator values appear in the log or on the console?
During initialization if the system logger address space abnormally ends, the following values appear in the log or on the console?

Any subsequent IXGxxx requests result in the following reason code condition:

Return code X'8', reason code X'0890', which indicates that the system logger address space is not available because it has not yet been started or has failed.

If initialization of system logger is occurring but not yet complete, you might receive the following reason code condition:

If the system logger server address space is started and later ends either through a catastrophic error or through the FORCE command, the system does not issue an ENF 48 signal. However, any subsequent IXGxxxx service requests receive the reason code condition return code X'8', reason code X'0890' and might also receive the reason code condition return code X'8', reason code X'0891'.