GE MDS Mercury Series, Справочное руководство

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138 Mercury Reference Manual 05-4446A01, Rev. C
connect to the Management System, see
“STEP 3—CONNECT PC TO
THE TRANSCEIVER”
on Page 23 .
Starting Information Screen
(
See
Starting Information Screen on Page 40 )
The Management System’s home page provides some valuable bits of
data. One of the most important is the
Device Status
field. This item tells
you if the unit is operational.
If the
Device Status
field says
Associated
, then look in the network areas
beginning with network data statistics. If it displays some other mes-
sage, such as
Scanning
,
Connecting
, or
Alarmed
, you must determine why
it is in this state.
The
Scanning
state indicates a Remote unit is looking for an Access
Point beacon signal to lock onto. It should move to the
Connecting
state
and finally to the
Associated
state within less than a minute. If this
Remote unit is not providing reliable service, look at the
Event Logs
for
signs of lost association with the Access Point, or low signal alarms.
Table 4-3 provides a description of the Device Status messages.
If the Remote is in an
Alarmed
state, the unit might still be operational
and associated. Look for the association state in the
Wireless Network
Status
screen to determine if the unit is associated. If it is, look at the
Error Log
for possible clues.
If the unit is in an
Alarmed
state and is not associated with an Access
Point, then there might be a problem with the wireless network layer.
Call a radio technician to deal with wireless issues. Refer the technician
to the RADIO (RF) MEASUREMENTS on Page 143 for information on
antenna system checks.
Table 4-3. Device Status
1
1. Device Status is available in the Startup Information Screen or the Wireless Status
Screen at Remotes.
Scanning The unit is looking for an Access Point beacon signal.
Ranging Remote has detected AP and is synchronizing to it.
Connecting The Remote has established a radio (RF) connection
with the Access Point and is negotiating the network layer
connectivity.
Authenticating
2
2. If Device Authentication is enabled.
The Remote is authenticating itself to the network to
obtain cyber-security clearance in order to pass data.
Associated This unit has successfully synchronized and is
“associated” with an Access Point. This is the normal
operating state.
Alarmed The unit has detected one or more alarms that have not
been cleared.