11-05-2011 08:28 PM - edited 03-07-2019 03:14 AM
Hi all,
I have 2 routers with Serial ports.
I need to connect them with serial cable.
Router 1 2650XM
When i do sh ver it shows
1 serial interface
*************************************************************************************************************
Router 2 2620
when i do sh ver
4 Low-speed serial(sync/async) network interface(s).
Please let me know which type of serial cable should i buy?
Thanks
Mahesh
Solved! Go to Solution.
11-06-2011 09:58 AM
Yes, try
service-module t1 clock source internal
on the DTE site and then add these commands to both side:
service-module t1 timeslots 1-24 speed 64
encapsulation hdlc
service-module t1 framing esf
service-module t1 linecode b8zs
HTH
11-05-2011 09:27 PM
Hi Mahesh,
Take a look at the serial interface, are they 60 pin interfaces? If yes, you need a DTC to DCE serial cable to connect your routers back to back
HTH
Reza
11-05-2011 09:54 PM
Hi Reza,
Thanks for reply
i side has 60 pins other end is like rj45 and it shows
WIC-1DSU-T1=
so both ends have different connections
which cable will i need now ?
Thanks
11-06-2011 08:21 AM
Hi Mahesh,
The interface types have to be the same. I have never seen a cable with one side serial 60 pins and the other side Rj45.
If you can get a WIC-1DSU-T1= (Rj45) for the other router, then you simply need to by a cross over T1 cable with Rj45 on both sides.
HTH
11-06-2011 08:35 AM
Hi Reza,
Thanks for reply .
If i get WIC-1DSU-T1= (Rj45) for another router then both interfaces will be serial and i can connect then with cross
over ethernet cable right?
Mahesh
11-06-2011 08:53 AM
Mehesh,
It is called "cross over T1 cable" and not Ethernet. The connector type is the same as Ethernet, but the pins are configured different. So you want to make sure you get cross over t1 cable.
Edit, you can make you own if you have the equipment but it is easier to buy one or 2
http://www.cisco.com/en/US/products/hw/routers/ps233/products_tech_note09186a00800a3f09.shtml
HTH
Reza
11-06-2011 09:12 AM
Hi Reza,
Thanks for reply again.
So in this case do i need to set clocking on 1 router or both?
Or no need to set clocking at all?
MAhesh
11-06-2011 09:23 AM
Mehesh,
You don't need clocking. Just add these 2 commands to one site to make it DTE
service-module t1 clock source internal
service-module t1 timeslots 1-24 speed 64
HTH
11-06-2011 09:38 AM
Hi Reza,
Thanks for reply.
so other side will be DCE by default?
No config needed for other router?
Mahesh
11-06-2011 09:58 AM
Yes, try
service-module t1 clock source internal
on the DTE site and then add these commands to both side:
service-module t1 timeslots 1-24 speed 64
encapsulation hdlc
service-module t1 framing esf
service-module t1 linecode b8zs
HTH
11-07-2011 02:58 PM
Hi Reza,
Thanks for reply
I will try that in my LAB.
MAhesh
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