Communications Interface; Parallel Interface; Table 6 Parallel Interface Pin-Outs - TransAct Ithaca 8000 Programmer's Manual

Communications Interface

Parallel Interface

Your printer features two parallel interfaces:
An IEEE 1284-A 25-pin, D-shell connector, with pin-outs that interface to a
standard IBM PC parallel printer interface with a one-to-one cable.
An IEEE 1284-B, which is a standard Centronics 36-pin connector.
Both interface cards provide a dual cash drawer interface. The following table lists
interface signals and corresponding pins.
25-pin Connector 36-pin Connector
Pin 1 Pin 1
Pins 2-9 Pins 2-9
Pin 10 Pin 10
Pin 11 Pin 11
Pin 12 Pin 12
Pin 13 Pin 13
Pin 14 Pin 14
Pin 15 Pin 32
Pin 16 Pin 31
Pin 17 Pin 36
Pin 17
- Pin 18
Pins 18-25 Pins 16, 19-30

Table 6 Parallel Interface Pin-outs

Signal Levels
Voltage levels
Logic levels
Logic one
Logic zero
Current requirements
Logic one
Logic zero
Line termination
Data and control
Strobe
100-06908
Signal Description
STROBE Clock data to printer
D0 - D7 Data
ACK\ Printer accepted data
BUSY Printer busy
PE Paper Out/Status
SLCT Printer selected
AUTOFD Autofeed paper
FAULT\ Printer error
INIT\ Initialize printer
SLIN Select printer
FG Frame ground
+5V Peripheral logic high
GND Ground
0 V and +5 V (nominal)
Driver +2.4 V to +5 V
Receiver +2.0 V to +5 V
Driver 0 V to +0.4 V
Receiver 0 V to +0.8 V
Source 0.25 ma at +2.4 V
Sink 16 ma
3.3k ohm to +5 V
1.2k ohm to +5 V
Rev D
Direction
Host to Printer
Host to Printer
Printer to Host
Printer to Host
Printer to Host
Printer to Host
Host to Printer
Printer to Host
Host to Printer
Host to Printer
Printer to Host
Printer to Host
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