6100 ADCCP Programming Manual

Station States and Transitions
ADCCP Link and Station Management
069225 Tandem Computers Incorporated 2–9
Figure 2-5. MODE SET to a Logically Disconnected Station
011
If the station is DEAD–for
example, if ADCCP was just
downloaded–it does not
respond to a modesetting
frame. It remains in Logically
Disconnected state.
After the application makes
a MODE SET request, the
station enters DISC mode
and Mode-setting state.
In this example, the station
enters Normal Response
Mode and Information
Transfer State.
Primary Station
Secondary Station
in DEAD Mode
SNRM
Secondary Station
in DISC Mode
Application
MODE SET
Primary Station
Secondary Station
in DISC Mode
SNRM
UA
Primary Station
Secondary Station
in NRM
RR(P)
I
Application can now
request data transfer
operations.
Now, the station can respond
to a mode-setting frame.