User Manual

7 Troubleshooting
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If you are still uncertain whether there is a problem
with the wiring of the STAR, proceed as follows:
Check the statistics with the commands
stat serial ext
and
s
tat wl<NodeID>.
If you transmit a Ping, the
Rx and Tx-counter should be increased.
Check whether the data cable is wired according to the
specifications shown in chapter 10, page 82.
Check all modules for correct wiring.
Check the hybrid cables.
Check the interface converters.
Check the cross over cables.
-
Check the wiring on the ACCESS:
Check the statistics with the commands
stat serial ext
(see page 49) at the ACCESS-side. If you transmit
a Ping, the Rx and Tx-counters should increase.
Check whether the data cable is wired according to the
specifications shown in chapter 10 on page 82.
Check the wiring of all modules.
Check the hybrid cables.
Check the routing tables.
•
With the instruction
stat hw
compare the serial number en-
tered in the device table (peer-table) with the actual serial
number of the device. If the serial number does not match,
all data packages will be discarded. Enter the following to
delete an existing entry in the device table:
PEER <NodeID> <ENTER>
Afterwards reset the device.
•
Check whether the looptest at the ACCESS radio modem is
still active (
show looptest
). The Parameter „LoopTest“ must
be set to „false“.
•
Defective Router at the customer side:
-
Check the configuration
-
Check the Hardware
•
PVC
-
PVC was built on the wrong port
-
PVC was built with wrong DLCI (according to the appro-
priate NodeID of the ACCESS)
•
Routing tables