Communication Protocol And Print Buffers; Overview; Figure 21 Typical Pos System; Figure 22 Host To Printer Link - TransAct Ithaca 90PLUS Series Programmer's Manual
Receipt/validation/journal printers pcos series
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Also See for Ithaca 90PLUS Series:
- Specifications (2 pages) ,
- Operator's manual (84 pages)
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Communications
Overview
8
Communication Protocol and Print Buffers
8.1 Overview
The following figure illustrates the communication flow from host computer to printer and from printer to cash
drawer.
Host computer
Host to
keypad
Keypad
Figure 21 Typical POS system
For the host to printer communication link, the Series 90PLUS Printer supports serial or parallel
communications. The serial and parallel ports both follow standards developed for the PC environment.
Host computer
Figure 22 Host to printer link
Page 128
PcOS Series 90PLUS
Host to printer link
Cash drawer
Data to printer
Status and flow control back
Rev Q
Programmer's Guide
Printer
Printer to cash
drawer
Printer
11/07/05
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