Sierra Video 7272HD-3G, User Manual

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ASPEN HD/SDI 3G ROUTING SWITCHER
39
“O”: Output Status Inquiry
The command "
O
" requests that the status information for a single output be returned to the
host. The status information is sent as a “Y” command or a “V” command or as a sequence of
L “X” commands, where L=number of levels.
For example, the command:
**O5!!
to a 3-level routing switcher might have the following three commands as its response:
** X65,23,1 X5,-,2 X5,0,3 !!
Note the dash, indicating that on level 2, output 65 is not connected to an input. Also note the
0, indicating that the connection on level 3 is either unknown or that output 65 doesn’t exist or
isn’t mapped on level 3.
Or, a 3-level routing switcher might have the following single command as its response:
** V65,23,-,0 !!
which has the same information as the three X commands in the previous example.
If the routing switcher has only one level, or if all levels are connected the same, the routing
switcher might instead use the
Y
command. For example:
** Y65,23 !!
“S”: Status Inquiry
Use command “S” to request that status information be returned to the host. The status
information is sent as a series of strings.
For example, the command:
**S!!
might have the following two strings at the beginning of its response:
**V1, 12!!
**V2, 2!!
This indicates that output 1 is connected to input 12 on level 1, and that output 2 is connected
to input 2 on level 1.
“U”: Update Request on/off
The command "
U
" turns on or off the automatic sending of output change reports. The current
mode can be queried with the command ** U !!. To change the setting, the command letter
must be followed by either a number 0,1 or 2 to specify the new automatic change report
state, as follows:
0: Automatic output change reporting is turned off.
1: Automatic output change reporting is turned on. Crosspoint change commands do not
immediately report changed status, but instead, the report comes up to a few seconds after
the crosspoint change command is received. The Aspen will send X commands when
crosspoints change.
2: Automatic output change reporting is turned on, and crosspoint change commands
immediately report changed status as part of the response to the command. The Aspen will
send X commands when crosspoints change.