Sierra Video 503108 RS-232 - Manual (Page 8)

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Sierra Video Systems • P.O. Box 2462 • Grass Valley, CA 95945 • www.sierravideo.com
503108 RS-232 INTERFACE
says that input 5 is to be connected to output 1 on
all levels, then a delay of 300 sync intervals is to
occur, then input 6 is to be connected to output 1
on all levels, then a status response is to be returned.
“P”: Preset a Connect Sequence
The command “P” is used to set up a series of
connect commands for later execution with the
“T” command (see below). It must be followed by
a letter A to Z giving the register in which the
connect sequence is to be stored, followed by zero
or more connect commands (V, W, X, Y, or Z),
followed by a “~” (tilde) character.
For example, the command:
** PB X2, 5, 0 Z7 ~ !!
says that two connect commands (output 2 to
input 5 AFV, and output 1 to input 7 AFV) are to
be stored into preset register B.
Only connect commands may follow the register
letter up to the tilde character. The maximum
allowed number of connect commands is deter-
mined by the particular switcher. The connect
commands do not take effect until the register is
triggered using the “T” command below.
“T”: Trigger a Preset Sequence
The command “T” is used to trigger a previously
set up “preset sequence” (set using the “P” com-
mand above). It must be followed by a letter from
A to Z giving the register to be triggered.
For example, the command:
**TB D200 TC !!
says to trigger preset register B, delay 200 sync
intervals, then trigger preset register C. When the
register is triggered, this means that the connect
commands stored in it take effect.
“Y”: Connect AFV
The command “Y” is used to request that a con-
nection be made. It must be followed by an output
number, a comma, and an input number. The
connection is made on all levels (AFV).
For example, the command:
**Y2, 29!!
says that input 29 is to be connected to output 2
on all levels.
“Z”: Connect Outputs AFV
The command “Z” is used to request that a con-
nection 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, 18, 7!!
says that input 4 is to be connected to output 1 on
all levels, input 18 to output 2 on all levels, and
input 7 to output 3 on all levels.
“D”: Delay Vertical Sync Intervals
The command “D” is used to delay before con-
tinuing execution of the commands that follow. It
must be followed by a number giving the number
of vertical sync intervals by which to delay. If the
number is 1, the delay will be to the VERY NEXT
vertical sync interval. If the number is 0, no delay
occurs. The number must be no larger than 65535.
Note that this command will also delay the time at
which the remaining command responses and the
trailer character are returned to the host.
For example, the command:
** X1, 5, 0, D300 X1, 6, 0 S !!