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Epson RS-353 Service Manual page 25

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(3) PC-98 mouse port (bus mouse)
Features
The port supports the only input data from a mouse. (I/O data communication is
disabled.)
D-Sub
connector
a) PC-98 mouse port pin assignments
Table
Pin Signal Functions
1
output
Encoder input from the mouse. Counting the data from pulse generator in a
2
XA
mouse.
XB
Same above
3
4
YA
Same above
Same above
5
YB
LEFT
Input from a mouse button. Detecting ON/OFF of the left button on a
6
NC
7
8
RIGHT Input from a mouse button. Detecting ON/OFF of the right button on a
mouse.
9
GND Ground
b) For 98NOTE after 98NOTE Light and
For the device after
Pin Signal
1
2
3
4
5
6
7
8
9
Figure I- 30 D-Sub
connector
4 Bus mouse connector pin assignments
Pin connection
VA
XB
YA
LEFT
NC
RIGHT
GND
1-16

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