GE MDS Mercury Series, Справочное руководство

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136 Mercury Reference Manual 05-4446A01, Rev. C
resolving common system difficulties using the LEDs, and Table 4-2 on
Page 137 provides other simple techniques.
4.1.2 Troubleshooting Using the Embedded
Management System
If you have reviewed and tried the items listed in Table 4-1 and still have
not resolved the problem, there are additional tools and techniques you
can use. The embedded Management System is a good source of infor-
mation that you can use remotely to provide preliminary diagnostic
information, or may even provide a path to correcting the problem.
Refer to Table 4-2 on Page 137 for more information on using the Man-
agement System as a troubleshooting tool.
Table 4-1. Troubleshooting Using LEDs—Symptom-Based
Symptom Problem/Recommended System Checks
PWR LED does not
turn on
a. Voltage too low—Check for the proper supply voltage at
the power connector. (10–30 Vdc)
b. Indefinite Problem—Cycle the power and wait
(
≈
30 seconds) for the unit to reboot. Then, recheck for
normal operation.
LINK LED does not
turn on a. Network Name of Remote not identical to desired Access
Point—Verify that the system has a unique Network Name.
b. Not yet associated with an Access Point with the same
Network Name.
Check the “Status” of the unit’s process of associating with
the Access Point. Use the Management System.
c. Poor Antenna System—Check the antenna, feedline and
connectors. Reflected power should be less than 10% of
the forward power reading (SWR 2:1 or lower).
PWR LED is
blinking a. Blinking indicates that an alarm condition exists.
b. View Current Alarms and Event Log and correct the
problem if possible.
(
See “Using Logged Operation Events” on Page 139 )
c. Blinking continues until the source of the alarm is
corrected, for example, a valid IP address is entered, etc.
LAN LED does not
turn on a. Verify the Ethernet cable is connect at both ends.
b. Verify that the appropriate type of Ethernet cable is used:
straight-through or crossover.
LAN LED lights, but
turns off after some
time Verify traffic in LAN. Typically, the radio should not be placed
in high traffic enterprise LANs, as it will not pass this level of
traffic. If needed, use routers to filter traffic.
GPS LED not lit No satellite fix has been obtained. A fix is required for all
operation except single-frequency channel (non-hopping)
configurations. The lack of a fix may be caused by an
obstructed “view” of the satellites, or a GPS antenna problem.
The GPS LED blinks slowly on the AP while it synchronizes its
internal clock to the GPS signal. When in this condition, the AP
does not transmit.