User`s guide

40 DC 900-1317J
ADCCP NRM Programmer’s Guide
Figure 2–4. The major areas of difference occur in the handling of polling, F-bit
responses, checkpoint retransmission, and timers. This section describes these differ-
ences, and explains the reason for their existence.
Figure 2–4: Operating Modes
Delayed F-bit Response
Primary Polling
P-bit Checkpoint
Primary T1
Timer and
F-bit
Checkpoint
Secondary T2 Timer
Immediate
F-bit Response
NRM ARM
ABM
DRWG-1136