Olivetti PG L22 Special, Service Manual, Page: 97 / 165

Y103920-3 Service Manual
97
• Connector pin arrangement
Pin No. Signal name Signal direction Functions
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
18
19
30
31
32
33
34
35
36
DATA STROBE
DATA BIT - 1
DATA BIT - 2
DATA BIT - 3
DATA BIT - 4
DATA BIT - 5
DATA BIT - 6
DATA BIT - 7
DATA BIT - 8
BUSY
PAPER END
SELECT
AUTOFEED
-
0V
+5V
0V
INPUT PRIME
FAULT
-
-
-
SELECT IN
10
PR
PR
PR
PR
PR
PR
PR
PR
PR
PR
Parallel data sampling strobe
PR Parallel input and output data
During print processing or alarm
End of paper
Select state (ON-LINE)
Request to change mode
(Not used)
Signal ground
50 mA max.
Signal ground
Initializing signal
End of paper or during alarm
Signal ground
(Not used)
High level (3.3 k
Ω
)
Request to change mode
ACKNOWLEDGE PR
Completion of data input or end of a
function
17
CHASSIS
GROUND
Chassis ground
:
:
3) Table of Parallel I/F Signals