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Router to Router Connection

I am trying to test the conenction between 2 router before I ship one out to a remote location. The connection will be a Ds1 circuit. Just a cold piece of copper. One router is an 1841 with a WIC-1DSU-T1-V2 the other router is a 1602 with a WIC-1DSU-T1 wic.

I have tried a Cat 5 cross over and a straight through cable. Niether seem to work. When I use the cross over cable I get %QUICC_ETHER-1-LOSTCARR: Unit 0, lost carrier. Transceiver problem? errors.

Here is the Config from the 1841

interface Serial0/1/0

description Connected to Library Park Office

ip address 10.0.0.9 255.255.255.248

service-module t1 clock source internal

service-module t1 timeslots 1-24

service-module t1 remote-alarm-enable

Here is the config from the 1602

interface Serial1

description Connected to Countyline office

ip address 10.0.0.10 255.255.255.248

service-module t1 remote-alarm-enable

Can I not connect routers driectly together in this manner or is there something wrong with my config?

1 ACCEPTED SOLUTION

Accepted Solutions
Blue

Re: Router to Router Connection

A T1 uses pairs 1,2 and 4,5. The ethernet is 1,2 and 3,6 which is why that did not work. A crossover cable wired for T1 will get you going.

1 - 4

2 - 5

4 - 1

5 - 2

2 REPLIES
Blue

Re: Router to Router Connection

A T1 uses pairs 1,2 and 4,5. The ethernet is 1,2 and 3,6 which is why that did not work. A crossover cable wired for T1 will get you going.

1 - 4

2 - 5

4 - 1

5 - 2

New Member

Re: Router to Router Connection

Thankyou! I did not realize there was different types of crossover cables. Onceyou pointed out there was a T1 crossover I goggled it and found this

http://www.netopia.com/en-us/support/technotes/hardware/NIR_035.html?print=yes

Thanks againg

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