SIERRA VIDEO SYSTEMS Tahoe 2010A, User Manual

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Tahoe Series 20
23
might return the following string:
** L64,3,32,VIDEO~AudioL~AudioR~~ OK !!<CR>
indicating that the router has 64 outputs, 3 levels, and 32 inputs, and the levels are
named "VIDEO", "AudioL", and "AudioR".
“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.
For example, the command:
**O5!!
to a 3-level router 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 router 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 router has only one level, or if all levels are connected the same, the router might
instead use the
Y
command. For example:
** Y65,23 !!
“N”: Input Status Inquiry
The command "
N
" requests that matrix status information for a single input be returned to
the host. This command is only useful on those router levels that allow an input to be
connected to at most one output. The status information is sent as a “Y” command or a
sequence of L “X” commands, where L=number of levels that allow an input to be
connected to at most one output (each such level generates a single “X” command of
status). Thus, a 6-level router with three single-output-per input levels would generate 3
“X” commands of status command output. A router that has
all of its levels
as single-
output-per-input may return a single “Y” command instead of individual “X” commands if
all of the levels are connected to the
same output
. The “X” and “Y” commands are
formatted exactly as with the "
O
" command.
For example, the command:
**N4!!
to a router might have the following three commands as its response:
** X12,4,2 X-,4,3 X0,4,4 !!
giving the status of levels 2, 3, and 4 (level 1 presumably not being a single-output-per-
input level). Note that on level 3 the ë-ë (dash) indicates that the input is disconnected,
and on level 4 the 0 indicates that the connection to the input is either unknown or that
input does not exist or is not available on that level.
If the router has only one level, or if all levels are connected the same, it might instead
use the
Y
command. For example:
** Y12,4 !!
“S”: Status Inquiry
Use command S to request that status information be returned to the host. The status
information is sent as a string of L x O substrings, where L = number of levels and O =
number of outputs. Each level/output combination generates a single substring of status.