User Manual
90 MDS entraNET 900 System Guide (Preliminary) MDS 05-4055A01, Rev. A
message, such as Scanning, Hop Sync or Alarmed, you will need to
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 Hop Sync 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 may 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, then look at
the Error Log for possible clues.
If the unit is in an “Alarmed” state and not able to associate with an
Access Point unit, then there may be problem with the wireless network
layer. Call in a radio technician to deal with wireless issues. Refer the
technician to the RADIO MEASUREMENTS on Page 96 for information
on antenna system checks.
Packet Statistics Menu
(See Packet Statistics Menu on Page 49)
This screen provides detailed information on data exchanges between
the unit being viewed and the network through the wireless and the
Ethernet (data) layers. These include:
Table 4-3. Device Status
1
1. Only available in the Startup Information Screen at Remotes.
Scanning The unit is looking for an Access Point beacon signal. If
this is a Remote, Associated means that the unit is
associated with an Access Point
Hop Sync The unit has found a valid beacon signal for its network
and has changed its frequency hopping pattern to match
that of the AP.
Associated This unit has successfully synchronized and is
“associated” with an Access Point. This is the normal
operating state.
Alarmed The unit is has detected one or more alarms that have not
been cleared.
Wireless Packet Statistics
• Packets received • Packets dropped
• Packets sent • Receive errors
• Bytes received • Retries
• Bytes sent • Retry errors