Parallel interface – Oki RT322POS User Manual
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11. Parallel Interface
The two-way parallel interface is compatible with the IEEE1284 compatibility mode and nibble
mode. Refer to the separate Specifications Manual for details.
Table of Connection Signals for Each Mode
Pin No.
Direction
Compatibility Mode
Signal Name
Nibble Mode
Signal Name
1
In
nStrobe
Host Clock
2
In/Out
Data0
Data0
3
In/Out
Data1
Data1
4
In/Out
Data2
Data2
5
In/Out
Data3
Data3
6
In/Out
Data4
Data4
7
In/Out
Data5
Data5
8
In/Out
Data6
Data6
9
In/Out
Data7
Data7
10
Out
nAck
PtrClk
11
Out
Busy
PtrBusy/Data3,7
12
Out
PError
AckDataReq/Data2,6
13
Out
Select
Xflag/Data1,5
14
—
HostBusy
15
—
—
16
Signal GND
Signal GND
17
Frame GND
Flame GND
18
OUT
+5 V
+5 V
19~30
Twisted Pair Return
Twisted Pair Return
31
In
nInit
nInit
32
Out
nFault
nDataAvail/Data0,4
33
External GND
—
34
—
—
35
—
—
36
In
nSelectIn
1284Active
Parallel interface connector (printer side)
This connector mates with an
Amphenol 57-30360 connector