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ISDN BRI U

Hi All,

I recently purchased Cisco 2811 with ISDN BRI U HWIC for ISDN connectivity. Unfortunately, when I connect the card to my ISDN NT box, the light on the ISDN NT box keeps flashing signifying no connectivity, while there are no signs of light behind the HWIC card either. When I swapped this out with a normal ISDN BRI S/T card, I can see a steady light on the NT box and also light behind the HWIC on the router meaning there is connectivity between the router and the ISDN NT box.

A quick check on Cisco website shows that these type of cards require RJ-49C connector (see site below)

http://www.cisco.com/en/US/prod/collateral/modules/ps5949/data_sheet_c78_439537.html

Can someone be kind enough to let me know if/why normal RJ-45 cables cannot be used? Also, I am struggling to  get information online on these RJ-49C connectors.

Thanks

Austin

1 REPLY
Hall of Fame Super Gold

ISDN BRI U

ISDN needs proper cabling, not Ethernet cabling.

The pinour is in the product manual.

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