Epson ES-1200C Guide de l'utilisateur Page 62

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Slgnal pln assignments (continued)
Pin ROtUfIl
No. pin
F
19-30
-
Pin ROtUfIl
No. pin
19-30
-
31
-
32
-
33
-
34-35
-
36
-
Signal
-
INIT
NC
GND
NC
DIR
DIrectIon
Function
-
Twisted pair return signal
ground level
IN
When this signal level
becomes low. the
scanner
ls
reset to the
state when power Is
turned on. This level is
usually High. The pulse
width
must be more
than 50 microseconds
a?
the receiving terminal.
-
-
Not used
Twlsted pair return slgnal
ground level
-
IN
Not used
Low indicates the
direction is input.
Q
“Return” denotes the twisted-pair return, to be connected
at signal ground level. For interface wiring, be sure to use
a twisted-pair cable for each signal, and to complete the
connection on the return side. These cables should be
shielded and the ground connected to the chassis of the
host computer and the scanner.
Ll
All interface conditions are based on TTL level.
Technical Specifications 4-7
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