Cobalt Digital COMPASS 9284 3G_HD_SD-SDI 8X4 Video Routing Switch - Manual (Page 18)

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9284 Functional Description
1-14 9284 PRODUCT MANUAL 9284-OM (V1.3)
The “ Y ” , “ V ”, and “ X ” commands are formatted exactly as with the “ O ”
command.
Refer to the “O” command description for information about whether the
router sends status using only “X” commands, or “Y”, “V”, and “X”
commands.
A 2-level 16-output router could generate as many as 2 x 16 = 32 “X”
commands of status output. For example, the command:
**S!!
might have the following four “X” commands at the beginning of its
Response:
** X1,23,1 X1,3,2 X2,-,1 X2,0,2
This indicates that output 1 is connected to input 23 on level 1, output 1 is
connected to input 3 on level 2, output 2 is unconnected on level 1 (as
indicated by the dash for the input number), and output 2 either does not exist
or is not available on level 2 or its connection is unknown (as indicated by the
zero input number). Or, the router might instead use the V command. For
example:
** V1,23,3 V2,-,0
Indicating the same as the previous example.
If the router has only one level, or if all levels are connected the same, it
might instead use the Y command. For example:
** Y1,23 Y2,-
This indicates that output 1 is connected to input 23 and output 2 is
unconnected.
Routers that are unmapped port units will produce symmetrical status output,
(i.e. if there is a Y01,23 command, there will also be a Y23,01 command).
“O”: Output Status Inquiry
The command “ O ” requests that matrix 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. Whether a “Y”, “V”, or “X” command is sent depends on several
factors:
From Syntax Description
Host O Out Ask router to send source status for
all levels of specified output.
Router Y out,in or V out,in,in... or X out,in,lvl Source status of the specified output.