Oki C7400 Maintenance Manual page 150

3) A list of Parallel I/F Signals
Pin No. Signal Name
1 DATA STROBE
2 DATA BIT - 1
3 DATA BIT - 2
4 DATA BIT - 3
5 DATA BIT - 4
6 DATA BIT - 5
7 DATA BIT - 6
8 DATA BIT - 7
9 DATA BIT - 8
10 ACKNOWLEDGE
11 BUSY
12 PAPER END
13 SELECT
14 Auto Feed
15 -
16 0V
17 CHASSIS GROUND
18 +5V
19
~ 0V Signal ground
30
31 INPUT PRIME
32 FAULT
33 0V
34 -
35 -
36 Select In
• Connector Pins Layout
41316401TH Rev.9
Signal Direction Function
PR Parallel data sampling strobe
PR Parallel input data
PR Completion of data input
PR Printing operation, Alarming, Paper empty
PR Paper empty
PR Select state (on-line)
PR Mode switch request
(Unassigned)
Signal earthing
Frame earthing
PR Supply voltage (Max. 50mA) Min. 4.75V
Signal grounding
PR Initialization
PR Paper empty, Alarming
Signal earthing
(Unassigned)
High level (3.3kÉ )
PR Mode switch reques
Oki Data CONFIDENTIAL
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