User`s manual

THEORY OF OPERATION
AXIS AX-3 Cobra+ Technical Reference 31
SECTION 3
THEORY OF OPERATION
The protocol converter receives IBM SCS (System network architecture Character
String) character codes and control commands, and translates them into ASCII
character codes and control commands which are sent to an attached printer.
Data Flow Chart
The basic data flow is shown in the following diagram.
Data flow in the protocol converter:
SCS
Emulation
EBCDIC National Coded-to-
EBCDIC International Set 5
Printer
Driver
Output
Driver
Extended
Emulation
EBCDIC
to ASCII
ASCII Printer
IBM System
SCS Control Codes EBCDIC National
Coded Characters
PC/LAN Parallel
PC/LAN Serial