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40930701TH DRAFT Vesion 185 /
Appendix A CENTRONICS PARALLEL INTERFACE
1) Connector
• Printer side : 36-pin receptacle
Type 57RE-40360-830B-D29 (made by DDK) or equivalent
• Cable side : 36-pin plug
Type 57-30360 (made by DDK) or equivalent
2) Cable
• Cable length : 6 ft (1.8 m) max.
(a shielded cable composed of twisted pair wires is recommended for noise prevention)
Note:
Cable is not provided.
3) Table of parallel I/F signals
→
PR
→
PR
←
PR
←
PR
←
PR
←
PR
→
PR
-
-
-
←
PR
-
-
-
-
-
→
PR
←
PR
-
-
←
PR
→
PR
Pin No. Signal name Signal direction Compatible Nibble
1
2~9
10
11
12
13
14
15
16
17
18
19
20~27
28
29
30
31
32
33
34
35
36
DATA STROBE
DATA BIT - n
ACKNOWLEDGE
BUSY
PAPER END
SELECT
AUTO FEED
-
0V
CHASSIS GROUND
+5V
0V
0V
0V
0V
0V
INPUT PRIME
FAULT
0V
-
HILEVEL
SEL-IN
nStrobe
nAck
Busy
Perror
Select
nAutoFb
nlnit
nFault
nSelectln
ECP
Host Clk
Data 1 (LSB) ~ 8 (MSB)
Ptrclk
PtrBusy
AckDataReq
Xflag
HostBusy
-
Signal Ground
Chassis Ground
+5V Supply (50mAm)
Signal Ground
Signal Ground
Singal Ground
Signal Ground
Signal Ground
nlnit
nDataAvail
-
-
High Level
1284 Active
Host Clk
PeriphClk
PeriphAck
nAck Reverse
Xflag
HostAck
nReverseRequest
nPeriphRequest
1284 Active
• Connector pin arrangement