Revision 7.10
2/28/2012
Table 114 shows the events that trigger a change the icon’s color.
Color Change
Triggering Event
to Red
Glider Terminal has stopped receiving “keep alive” network packets
from the corresponding Dock Server.
The Glider Terminal to Dock Server network connection could be
down or the Dock Server is not running.
to Green
Glider Terminal is receiving “keep alive” packets every few seconds
from the corresponding Dock Server. That is, the Glider Terminal to
Dock Server network connection is up and the Dock Server is
servicing Glider Terminal requests.
Table 114. Events triggering a change in Dock Server icon color.
For Dock Server network connections that are red, Glider Terminal automatically
attempts to reconnect. It continues trying to reconnect about once a minute until the
connection is opened (icon will turn green).
11.3 How do Iridium, Freewave, and Direct Communications Differ
Gliders and glider simulators communicate with Dock Server by modem (Iridium),
freewave, and direct serial cable connection. Since these three methods have different
characteristics, Dock Server must treat them differently. Each of these methods is
characterized as a “device” – modem (Iridium), freewave, and direct. This section
details how Dock Server treats each device. A direct device is simply a serial cable
between a Dock Server serial port and a glider simulator (i.e., no modem or freewave is
inline).
Since Dock Server can not determine what device is attached to each managed serial
port, the user must provide this information in the dockServerState.xml file (refer to
section 2.6). If this file does not reflect the actual devices connected to Dock Server
serial ports, then Dock Server to glider communications can fail.
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