Introduction to Tandem X.25 Capabilities

Appendix D D-Series Changes to X25AM
065307 Tandem Computers Incorporated D–1
The D-series changes to X25AM are summarized below:
The maximum number of subdevices supported per X25AM line has been
increased from 254 to 511.
The 6202 byte-synchronous controller is no longer supported.
CMI is no longer supported.
CUP is no longer supported.
Generally, applications written for C-series systems should run on D-series systems
without being changed in any way.