Sierra Video Manzanita 321V - Manual (Page 10)

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Sierra Video Systems • P.O. Box 2462 • Grass Valley, CA 95945 • (530) 478-1000 • Fax (530) 478-1105
INSTRUCTION MANUAL
substring depends on the size of the particular
switcher involved. Larger switchers use bigger
numbers for inputs, outputs, and levels.
The first substring of status is for level 1 output 2,
etc. (However, each substring contains the level
and output numbers, so the sequence in which the
data is sent is not important.) The first characters
of each substring are a space followed by “X”,
then the output number, a comma character, the
input number connected to the output (or 0 if no
connection exists), another comma, and finally the
level number at which the input-output pair is
connected.
For example, the command:
*S!
might have the following two substrings at the
beginning of its response:
* X1,3, 1 X2, 2, 1!
This indicates that output 1 is connected to input 3
and that output 2 is connected to input 2.
“U”: Update Request
The command “U” turns on or off the automatic
sending of updates. The command letter must be
followed by either a “1” (on) or “0” (off) to
specify the new update state.
Updates are automatic messages sent to the host
whenever a matrix crosspoint is changed by
something other than a host command (e.g. by a
keypad or some other remote controlling device).
An update message is identical to the substring
sent by the “S” command described above, and is
preceded by a leader character and followed by a
trailer character and CR character.
For example, the command:
*U1!
turns on automatic updates. When a crosspoint is
changed, the following message might be received:
*X1, 05 ,1!<CR>
indicating that output 1 is now connected to
input 5 on level 1. Note that all-level (AFV)
switches will generate multiple “X” substring
responses, one for each level. Updates can be
sent any time a response to a command is not
being sent. The switcher never mixes updates
with command responses.
To turn off updates, use the command:
*U0!
“X”: Connect Crosspoint
The command “X” is used to request that a con-
nection be made. It must be followed by an output
number, a comma, an input number, a comma,
and a level number.
For example, the command:
*X1, 04, 1!
says that a connection is to be made between
output 1 and input 4 on level 1.
“Z”: Connect Outputs AFV
The command “Z” is used to request that a
connection be made. It must be followed by a
comma-separated list of input numbers, one for
each output, up to the number of outputs in the
switcher. Fewer than the number of outputs may
be specified if desired, and the remaining outputs
will be left unchanged. The connection is made on
all levels (AFV).
For example, the command:
*Z4, 3!
says that input 4 is to be connected to output 1 on
all levels and input 3 to output 2.