01-07-2008 12:46 PM - edited 03-03-2019 08:09 PM
I just purchased 2 cisco 1841 routers with csu cards in them to connect a remote office through a T1. I have them setup but I am by no means a cisco expert. I would like to test them here before I ship one of them to our remote office. When I connect the 2 routers with a straight through or crossover cable all I get is a yellow alarm light on the csu card. Is there any way to connect these so I can confirm everything is setup correctly before I ship the one?
Thanks
01-07-2008 12:50 PM
You will need to make a T1 crossover cable.
pins 1,2 to 4,5
http://www.ldfacts.com/faq_files/How-to-Make-a-T1-Crossover-cable.htm
01-07-2008 12:57 PM
Thank you very much. I will give it a try.
01-08-2008 06:25 AM
As stated below the cross over cable will allow connection between the two routers. You can put on a basic config to run a live test. Something basic is all that is needed:
Router A
inter s0/0 (or whatever interface it is)
ip address 10.1.1.1 255.255.255.252
no shut
ip route 0.0.0.0 0.0.0.0 s0/0
Router B
inter s0/0
ip address 10.1.1.2 255.255.255.252
no shut
ip route 0.0.0.0 0.0.0.0 s0/0
then try to ping across from router to router. But to keep it even more simple, if the line comes up then you are good, just do a no shut on the interfaces once the cable is plugged in and do a sh ip int brie to see if the interfaces are up or not.
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