Sub Station States - Solectek skyway series User Manual

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The following table describes base station timers:
Timers: Timers: Timers: Timers:
Poll Timer
Response Timer

Sub Station States

The following table describes sub station states:
States: States:
States: States:
Disconnected
Connected
The following table describes sub station events:
Events: Events: Events: Events:
RR Command Received
RNR Command
Received
REJ Command Received
SNRME Command
Received
XID Command Received
I-Frame Received
UI-Frame Received
Shutdown Event
Description: Description: Description: Description:
The poll timer determines when the base station
should send a poll frame to the sub station.
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.
Description: Description:
Description: Description:
No communications session exists between the base
station and the sub station.
The sub station has an active communication session
with the base station. I-Frames may be exchanged only
in the connected state.
Description: Description: Description: Description:
Receive Ready command received from the base sta-
tion.
Receive Not Ready command received from the base
station.
Reject Command received from the base station.
Send Normal Response Mode Extended command
received from the base station.
Exchange station identification command received
from the base station.
Information frame received from the base station.
Unnumbered frame received from the base station.
Disconnect received from the base station.
Base Station States