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HD1012 Installation Manual – V3, Issue 1, Rev 1
S&W Production & Post Production
6
SYSTEM INTERCONNECTION -
continued
Button Bus Multi Control
Button Bus Multi Control is a facility which allows one switcher
control panel to control two switcher mainframes
simultaneously, so, for example, a program can be produced
in both HD and SD at the same time from one control panel.
The basic Button Bus function is a RS422 protocol which
outputs a serial code on a selected mainframe serial port
when a key is pressed or released. By connecting two
mainframes together this facility may be used to allow one
control panel to control two mainframes simultaneously using
the function “Button Bus Multi Control”.
To use this facility ensure that both mainframes have the
same set-up and are in the same operational situation
otherwise problems will arise when using certain control
buttons such as toggle functions.
Set one of the serial ports on each of the two mainframes to
“B Bus Multi Ctl” using the Config – System – Set Port
Protocols. Connect these two ports together using a RS422
swap cable.
With the system set-up as above any button presses, joystick
movements or T-bar movements will control both mainframes
simultaneously.
Note
Button Bus Multi Control is an option that requires an enabling
password. A password is available from Snell & Wilcox
technical support.