Graphics Aspect Ratio Switch; Xon/Xoff And Ready/Busy Protocol Switches - Digital Equipment LA50 Installing And Using

Graphics Aspect Ratio Switch SW1-5
Switch SW 1-5 changes the horizontal to vertical dot ratio in graphic mode
by changing the number of horizontat dots per inch. The number of vertical
dots are kept constant at 72 dots per inch.
Horizontal
Ratio
Dots/Inch Switch Position
2
to 1
2.5 to 1
144
Open (factory setting)
180
Closed
PROTOCOL SWITCHES
SW1-6, SW1-7 GRAPHICS SWITCH
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XON/XOFF and Ready/Busy Protocol Switches SW1-6 and SW1-7
DIGITAL systems use XON I XOFF protocol. Other systems may require
Ready /Busy protocol. Switch SW 1-6 selects the protocol. Switch SW 1-7
selects the ready and busy signal levels.
Protocol SW 1-6 Position
XON I XOFF Open (factory setting)
Ready I Busy Closed
Signal Level SW 1-7 Position
Busy = High Open (factory setting)
Ready= Low
Busy = Low Closed
Ready= High