Sierra Video Pro XL Series 8 - Manual (Page 51)

GENERIC PROTOCOL
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“Y”: Connect AFV
Use command Y to request that a connection 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, 8!!
This string says that input 8 is to be connected to output 2 on all levels.
“Z”: Connect 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 router.
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.
An input number of 0 means the output connection is to be left unchanged.
An input number of ë-ë (dash) means the output is to be disconnected. If the router does not
support disconnected outputs, the output connection will be left unchanged.
Any input or (implied) output number may be specified as long as it exists on at least one level.
No connection will be made on any level on which an input or (implied) output number does not
exist. If the requested connection has an output or input number that isn’t mapped to a physical
connector (on virtual-mapped routers) on one or more levels, those levels are simply not
changed.
If “U2” is in effect (see “U” command), the response will include one or more V, Y, or X
commands to report the new status of the outputs. The response will be the same as if “O”
commands were issued for the outputs immediately following the “Z” command. No response is
generated if this command is being used to define a salvo.
“D”: Delay vertical sync intervals
The command "D" is used to delay before continuing 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 255. 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: