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Annotation of researchv10dc/man/manx/vsw.1, revision 1.1

1.1     ! root        1: .TH VSW 1
        !             2: .CT 1 prog_other
        !             3: .SH NAME
        !             4: vsw \- video switcher
        !             5: .SH SYNOPSIS
        !             6: .B vsw
        !             7: [
        !             8: .I option
        !             9: ] [
        !            10: .I iopair ...
        !            11: ]
        !            12: .SH DESCRIPTION
        !            13: .I Vsw
        !            14: controls Dynair (System 10 and Dynasty) video switches.
        !            15: There is a composite video switch and a 3 channel (rgb) switch.
        !            16: Each switch has ten or more inputs and outputs.
        !            17: Inputs may be attached to one or more outputs (fanout).
        !            18: Outputs may not be attached to more than one input (no mixing).
        !            19: .PP
        !            20: The optional
        !            21: .I iopair
        !            22: arguments are two letters
        !            23: .I io
        !            24: which mean attach input letter
        !            25: .I i
        !            26: to output channel letter
        !            27: .IR o .
        !            28: The options are
        !            29: .TP
        !            30: .B -c
        !            31: Use the composite video switch.
        !            32: Exactly one of
        !            33: .B -c
        !            34: and
        !            35: .B -r
        !            36: must be specified.
        !            37: .PD 0
        !            38: .TP
        !            39: .B -d
        !            40: Describe the input and output channels.
        !            41: .TP
        !            42: .B -i
        !            43: Initialize the switch to a default setting.
        !            44: .TP
        !            45: .B -p
        !            46: Print the current switch configuration suitable for processing with
        !            47: .IR vsw .
        !            48: .TP
        !            49: .B -r
        !            50: Use the rgb video switch.
        !            51: Exactly one of
        !            52: .B -c
        !            53: and
        !            54: .B -r
        !            55: must be specified.
        !            56: .TP
        !            57: .B -v
        !            58: Be more verbose.
        !            59: .PD
        !            60: .PP
        !            61: By convention, video switch access to monitors is for
        !            62: `INPUT B',
        !            63: which is normally selected by a button on the front.
        !            64: The Barco monitor is an exception; use
        !            65: `COMP VIDEO 1'.
        !            66: .SH EXAMPLES
        !            67: .TP
        !            68: .B x=`vsw -cp`
        !            69: Save the current configuration.
        !            70: .TP
        !            71: .B vsw $x
        !            72: Restore the configuration.
        !            73: .SH SEE ALSO
        !            74: .IR 2500 (1)
        !            75: .SH BUGS
        !            76: For timing reasons,
        !            77: .I vsw
        !            78: only works from fast or unloaded machines.
        !            79: .br
        !            80: The input/output names are a little terse.
        !            81: .br
        !            82: To power-cycle the rgb switch, look for the blue ribbon
        !            83: cable that daisy chains the three boxes.
        !            84: The box at
        !            85: one end of the chain has a coax cable connected to `comm';
        !            86: start power cycling at the other end of the daisy chain.
        !            87: .br
        !            88: The switch may need to be reset after prolonged power outages
        !            89: (in this case,
        !            90: .I vsw
        !            91: will complain) by
        !            92: .br
        !            93: .B "cd /n/bowell/usr/src/cmd/vsw; mk init.vsw"

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