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Telnet Commands
Video Server has a Telnet daemon for only 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. The password is as same as that used in web 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 SYSTEM.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. 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 all digital inputs. 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
di1=l
di2=l
di3=l
di4=l
and if DI2 changes to H, terminal will display only
di2=h
Stop information dumping
Typing "stop" will cease dumping debug information and the digital input status.
Query status of digital inputs
Typing "diquery" will display the status of all digital inputs once.
Set digital outputs
To set digital output 1 to connect NO with COMMON, type "do1=o".