Introduction to Tandem X.25 Capabilities

X25AM Connectivity
Tandem X.25 Features and Capabilities
2–24 065307 Tandem Computers Incorporated
A Tandem SNAX/XF secondary station functions as a type 2 node communicating
with an IBM SNA host. See Figure 2-13. In this type of configuration, the Tandem
system acts as a gateway between an application or device in the Tandem network and
an application on the IBM host. The Tandem application could be either a
device-control-type application such as EM3270, or a user-developed or third-party
SNALU application, or a high-level user application that uses SNAX/APC or
SNAX/HLS.
Lines connected to this type of node are configured as SDLC secondary lines.
Figure 2-13. Switched Secondary SNAX/XF Station over X25AM
Tandem
NonStop System
Packet-Switched
Network
QLLC
X25AM
Application
SNAX/XF
X.25
FEP IBM Host
Application
X.25
NCP
VTAM
030
X.25
NPSI