[AusNOG] ISDN acting the maggot

[Peter Adkins]

No matter how many times you've checked and double checked the RX/TX lines
of a device or service, or have worked with it in the past, it's wrong! :)

I learnt recently that it's been dubbed "UART dyslexia" by the internet at
large. What's worse is it usually only becomes apparent after you've
soldered, or crimped the pairs...


On Fri, Aug 16, 2013 at 9:19 AM, Geordie Guy <elomis at gmail.com> wrote:

> RX/TX pairs not correct.  I blame Friday.
>
>
> On Fri, Aug 16, 2013 at 9:15 AM, Geordie Guy <elomis at gmail.com> wrote:
>
>> Hi folks,
>>
>> CE question but hopefully someone has an idea amidst the hail of "take it
>> to SAGE".  What would cause an ISDN connection to be able to be looped back
>> fine both ends (so a loopback on the provider end is visible and get CD
>> *AND* a loopback on customer end shows at provider the same) but if the
>> connection is provider to customer there's no carrier?
>>
>> - Geordie
>>
>
>
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>


-- 
Regards,
Peter Adkins
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