Communication Interface Specifications; Parallel Interface (Oki/Oem Standard Type) - Oki POS 425D Developer's Manual

5.3 Communication Interface Specifications

5.3.1 Parallel Interface (OKI/OEM Standard Type)

1 Interface Spec (Between centronics connector and host PC)
Parallel interface signal part (IEEE-1284 parallel equivalent)
Centronics Connector Pin Assignment signal
A25012.doc
Pin No. Signal Name
1 nStrobe
2-9 DATA bit 1~8
10 nAck
11 Busy
12 PError
13 Select
14 nAutoFd
15 NC
16,19- GND
30, 33
17 FG
18,35 +5V
31 nInit
32 nFault
34 DK_STATUS
36 nSelectln
Note: Pin arrangement
OP425_05.eps
18
36
Direction Function
From host PC Data Strobe
From host PC Data from host PC
To host PC Receive completion
To host PC Data receiving impossible
To host PC OEM Standard Type: Error
OKI Standard Type: Paper End
To host PC Online
From host PC 1284 mode move request
- Not connected
- Signal ground
- Frame ground
To host PC +5VDC power supply (Max 400mA)
From host PC Initialization
To host PC Error
To host PC OEM Standard Type: Not used
OKI Standard Type: Cash Drawer status signal
From host PC 1284 mode move request
1
19
Developer's Guide: English
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