User's Guide

Base Station States
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The following table describes base station timers:
Sub Station States
The following table describes sub station states:
The following table describes sub station events:
Timers:
Timers:Timers:
Timers: Description:
Description:Description:
Description:
Poll Timer The poll timer determines when the base station
should send a poll frame to the sub station.
Response Timer The response timer is set every time a frame is trans-
mitted to the sub station and a response frame is
expected back. If this timer expires, it indicates that the
sub station did not respond within the expected time
frame.
States:
States:States:
States: Description:
Description:Description:
Description:
Disconnected No communications session exists between the base
station and the sub station.
Connected The sub station has an active communication session
with the base station. I-Frames may be exchanged only
in the connected state.
Events:
Events:Events:
Events: Description:
Description:Description:
Description:
RR Command Received Receive Ready command received from the base sta-
tion.
RNR Command
Received
Receive Not Ready command received from the base
station.
REJ Command Received Reject Command received from the base station.
SNRME Command
Received
Send Normal Response Mode Extended command
received from the base station.
XID Command Received Exchange station identification command received
from the base station.
I-Frame Received Information frame received from the base station.
UI-Frame Received Unnumbered frame received from the base station.
Shutdown Event Disconnect received from the base station.