Digital Equipment DECwriter 500i Service Manual page 50

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A 36 pin connection cable is supplied with the system, and this must not exceed
2.5 metres.
The figure below shows the 36 pin Amphenol connector for the parallel interface
connection, indicating the transmission signals.
E 01
STROBE
0 02
DATA 0
1 03
DATA 1
2 04
DATA 2
3 05
DATA 3
4 06
DATA 4
5 07
DATA 5
6 08
DATA 6
7 09
DATA 7
E 10
ACK
Y 11
BUSY
Y 12
PAPER EMPTY
E 13
ON LINE
T 14
AUTOFEED XT
C 15
NC
D 16
LOGIC GROUND
D 17
FRAME GROUND
V 18
+5 V
Installation 3-14
19 GROUND
20 GROUND
21 GROUND
22 GROUND
23 GROUND
24 GROUND
25 GROUND
26 GROUND
27 GROUND
28 GROUND
29 GROUND
30 GROUND
31 INIT.
32 ERROR
33 LOGIC GROUND
34 NC
35 +5 V (PULL-UP; 3.3K ohm)
36 INPUT / SELECT IN

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