Harrington Signal Network Plus 21 Manual page 49

Screen 51 FIFOs
This screen is restricted to privilege level 1 and above. Displays the FIFO usage of
various system components. This diagnostic screen should be consulted if messages on a
network appear to be lost. The system component making to much use of the FIFO will
have a large count value.
NP21 Access Terminal Guide 46
01-28-02
Technical Service