Cable for BRI Port on a Cisco 2520 Router

[Bedrock1977]

I have 4-2520 Routers with one of them acting as a Frame Relay Switch. I would like to incorporate an ISDN backup line between two of the routers. Each of the routers have BRI ports and I understand you need a special cable for it. Can someone please guide me in the right direction as to what type of equipment I might need here. Thanks.

 

[Minue]

Hello
The Bri interfaces uses a simple RJ45 cable.To simulate a ISDN backup you will need a ISDN simulator.You can find a few on EBAY.

Regards

 

[Bedrock1977]

Looking through eBay - those seem to be pretty pricey. Maybe I can use a simulator for ISDN interfaces for now. Thanks for the help.