OSI/AS and OSI/TS Supplement (Includes RFC-1006 Support)

Overview of the Tandem OSI Architecture
Introduction to RFC-1006
1–2 107751 Tandem Computers Incorporated
Figure 1-1. Tandem OSI Architecture: OSI/AS and Underlying Subsystems
005
Transport
Data Link
Physical
Layer
Application
Presentation
Session
LAN
TLAM
Subsystem
Controllers
50-ohm
Baseband
WAN
X25AM
Subsystem
Controllers
RS-232C,
RS-449,
X.21, V.35
Network
WAN
Controllers
RS-232C,
RS-449,
X.21, V.35
X25AM
Subsystem
LAN
TLAM
Subsystem
Controllers
50-ohm
Baseband
TCP/IP
Subsystem
OSI/FTAM
Subsystem
OSI/MHS
Subsystem
Other OSI/AS
Applications
OSI/AS
Subsystem
OSI/TS
Subsystem
OSI/TS
Applications