Exchange/SNA Manual

Exchange/SNA Overview
Introduction
104700 Tandem Computers Incorporated 1–5
Figure 1-1. Overview of Exchange/SNA Communications
001
I/O Channel
SNAX/XF or SNAX/CDF
Outbound
Data
VTAM
Host
RJE
Subsystem
Inbound
Data
SDLC
Line
Tandem System
Host System
Exchange/SNA
Data
File
1
Data
File
2
Card Reader
Subdevice
Printer or Punch
Subdevice
Communications Controller