Telnet; System Core Debugging; Monitor Changed Status Of Digital Inputs; Stop Information Dumping - 4xem IPVS1A User Manual

Telnet

Video Server has a Telnet daemon for administrators to access some seldom used functions. Using any
general terminal program to connect to Video Server will prompt the user for a password. Username is not
requested here since only administrators can access the Telnet daemon. T he password is as same as that
used for we b access. After logging in, type "help" for the command list. If "debug" or "dinote" is not
executed, Telnet will disconnect automatically after being idle for 1 minute.

System core debugging

General activities are recorded into SYST EM.LOG continuously, but information about abnormal status
is not. To look deep into the core debugging information, administrators may type the " debug" command.
This will cause Video Server to start dumping the detailed debugging information while the system is
running. This is useful to examine if any error has occurred when the system operates abnormally. The
stored information will be cleared automatically after the dump. Video Server will continue to dump new
messages unless the connection is broken. If Telnet is not connected, any messages will be stored until
administrators re-login.

Monitor changed status of digital inputs

Typing "dinote" will make Video Server send the current status of digital input. After that Video Server
will continuously monitor DI status and send messages only when the state has changed. For example,
after typing "dinote" the terminal will display
DI=L
DI=L
and if DI changes to H, terminal will display only
DI=H

Stop information dumping

Typing "stop" will cease dumping debug information and digital input status.

Query status of digital inputs

Typing "diquery" will display the status of digital input once.
73