User`s guide
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AL-1250 - B/W Laser Printer
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CHAPTER 2 OPTIONS
2-7
RS-100M Interface Connector
1
2
3
54
6
87
Fig. 2-4 Interface Connector
Pin Assignmen
t
Pin No.
Signal
IBM(RS-232C)
Apple(RS-422A)
1D
T
R
D
T
R
2D
S
R
D
S
R
3T
x
D
T
x
D
-
40
V
0
V
5R
x
D
R
x
D
-
6T
x
D
+
7N
.
C
.
8R
x
D
+
1
...
...
47
48
49
50
51
...
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