MBCCU0: No Load

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Bjoern Heller mailinglists at hellercom.de
Thu Apr 23 07:13:43 UTC 2009


Hello Dieter,

> You did turn the power off for a restart, just to be sure ?
Yes, of course ;)

> If the firmware for the first TRX is not loaded, the Abis
> communication will still work because the microcontroller
> which takes care about the commnunication is working. The
> error messages result from the not working TRX (I guess
> it would work if TRX1 instead of TRX0 is used, however I
> have not tried it yet).

What do I have to do to use the second TRX instead?
Plug in the other Twinax connectors?
Do I need to setup the second TRX separately on LMT?

Thanks ;)

Björn


Am 23.04.2009 um 09:05 schrieb Dieter Spaar:

> Hallo Bjoern,
>
>> I tried it several times,
>> and left the BTS on over night.
>> The LMT cable wasn't always plugged in.
>> When I boot up the BTS it always says that the second TRX
>> has Load and the first not.
>
> You did turn the power off for a restart, just to be sure ?
>
>> If I try to bring up the BTS with your SW under Win.
>> I get the Abis Link Up but when I try the Load DB I get some
>> error messages on LMT.
>> Then the second TRX goes down to No Load.
>
> If the firmware for the first TRX is not loaded, the Abis
> communication will still work because the microcontroller
> which takes care about the commnunication is working. The
> error messages result from the not working TRX (I guess
> it would work if TRX1 instead of TRX0 is used, however I
> have not tried it yet).
>
>> And this is the condition until I reboot the BTS.
>> Maybe its a software issue?
>
> I don't think so because the communication processor loads the
> same firmware in both TRX. This is done in parallel. In your
> trace there is the same behavior I experience here, loading the
> firmware for TRX0 ad TRX1 starts, however loading TRX0 stops
> immediately. Of course I can only speak for my BS-11, but here
> it is most certainly a hardware issue (at one time I could even
> see an error message that the first power supply unit did not
> start).
>
> Best regards,
>  Dieter
> -- 
> Dieter Spaar, Germany                           spaar at mirider.augusta.de
>

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Björn Heller
Jabber: tec at jabber.hellercom.de

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