Communications Interface; Parallel Interface; Table 7 Parallel Interface Pin-Outs - TransAct Ithaca 280 Programmer's Manual

Specifications and Requirements

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 7 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
28-04430
Signal
STROBE
D0 - D7
ACK\
BUSY
PE
SLCT
AUTOFD
FAULT\
INIT\
SLIN
FG
+5V
GND
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
Sink 16 ma
Rev K
®
iTherm 280 Programmer's Guide
Description
Clock data to printer
Data
Printer accepted data
Printer busy
Paper Out/Status
Printer selected
Autofeed paper
Printer error
Initialize printer
Select printer
Frame ground
Peripheral logic high
Ground
0.25 ma at +2.4 V
3.3k ohm to +5 V
1.2k ohm to +5 V
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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