Cisco 877 cabling
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Posted by Andre Wisniewski on June 3, 2008, 2:25 am
Please log in for more thread options I've some questions regarding cabling my Cisco 877 to my DSL line. Router gets not in sync whereas my fritz.box is in sync within seconds. Is it possible to connect my Cisco to my splitter or has it to be connected directly to my line? If it's possible what is the pin layout? In this case i have to use another cable than the delivered magenta one. The magenta one has two RJ11 plugs whereas my splitter has a RJ45 jack. Thanks in advance Andre | |||||||||||||||||||||||||||||||
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Posted by Markus Marquardt on June 3, 2008, 5:15 am
Please log in for more thread options > I've some questions regarding cabling my Cisco 877 to my DSL line.
Are you aware of the fact, that the Cisco 877 has a ADSL over POTS modem? That means on nearly all lines in Germany it won't work. For details see: http://www.cisco.com/en/US/prod/collateral/routers/ps380/ps6200/product_data_sheet0900aecd8028a976.html Especially: 876: ADSL over ISDN (ADSL2/ADSL2+ Annex B) 877: ADSL over analog telephone lines (ADSL2/ADSL2+ Annex A and Annex M) Even if you have only an analog line, the Annex B is used in Germany. > Is it possible to connect my Cisco to my splitter or has it to be
> connected directly to my line? You have to connect the Cisco router to the splitter. > If it's possible what is the pin layout? In this case i have to use
Only the inner two pins are used. If you use the RJ11 cable, it should work as the other pins are unused anyway. With kind regards Markus | |||||||||||||||||||||||||||||||
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Posted by Andre Wisniewski on June 3, 2008, 8:32 am
Please log in for more thread options Markus Marquardt wrote:
> Andre Wisniewski wrote:
>> I've some questions regarding cabling my Cisco 877 to my DSL line.
>
http://www.cisco.com/en/US/prod/collateral/routers/ps380/ps6200/product_data_sheet0900aecd8028a976.html
> Are you aware of the fact, that the Cisco 877 has a ADSL over POTS > modem? That means on nearly all lines in Germany it won't work. > > For details see: > > >
> > Especially: > > 876: ADSL over ISDN (ADSL2/ADSL2+ Annex B) > 877: ADSL over analog telephone lines (ADSL2/ADSL2+ Annex A and Annex M) > > Even if you have only an analog line, the Annex B is used in Germany. > So, i have to use 876 instead of 877 even though i have an analog line? >> Is it possible to connect my Cisco to my splitter or has it to be
>> connected directly to my line? >
> You have to connect the Cisco router to the splitter. > Thought so. >> If it's possible what is the pin layout? In this case i have to use
>
> Only the inner two pins are used. If you use the RJ11 cable, it should > work as the other pins are unused anyway. > I was right with that, too. > With kind regards
> Markus | |||||||||||||||||||||||||||||||
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Posted by Markus Marquardt on June 3, 2008, 10:18 am
Please log in for more thread options Andre Wisniewski wrote:
>> 876: ADSL over ISDN (ADSL2/ADSL2+ Annex B)
>> 877: ADSL over analog telephone lines (ADSL2/ADSL2+ Annex A and Annex M) >
> So, i have to use 876 instead of 877 even though i have an analog line? Yes, i think so. You could check which standard is used by the Fritzbox which works (maybe there's a label or something on it) - i guess it is Annex B (ADSL over ISDN). If so, the Cisco device must be the same type - in your case the 876. With kind regards Markus | |||||||||||||||||||||||||||||||
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Posted by Markus Marquardt on June 3, 2008, 10:26 am
Please log in for more thread options Markus Marquardt wrote:
> Andre Wisniewski wrote:
>>> 876: ADSL over ISDN (ADSL2/ADSL2+ Annex B)
>>> 877: ADSL over analog telephone lines (ADSL2/ADSL2+ Annex A and Annex M) >>
>> So, i have to use 876 instead of 877 even though i have an analog line? >
> Yes, i think so. You could check which standard is used by the Fritzbox > which works (maybe there's a label or something on it) - i guess it is > Annex B (ADSL over ISDN). If so, the Cisco device must be the same type > - in your case the 876. Just an addition, please see http://de.wikipedia.org/wiki/Annex_A Especially the text related to "Verbreitung": Germany is the only country where only Annex B is used - regardless if you have an ISDN or analog line. With kind regards Markus | |||||||||||||||||||||||||||||||
