Using an old 2600 router to be a frame relay switch for lab purposes

[speedup]

I have an old cisco 2600 router, and a couple newer 2811 routers, and a couple 3750 switches.

Question.  My 2600 has a slot for an expansion card.  Can I install card NM-4T1-IMA which has 4 ports and mimic a frame relay switch with that?   It looks like the ports are serial ports, and I wanted to see if I can connect that with the 1DSU-T1v2 cards I use in my 2811.  Will the 2600 work as the DCE clocking side of the circuit with that card?  Also, will a crossover serial cable (RJ45 connector) work?  

If that setup will not work, can you suggest one that would?

I am a beginner, sorry if this question/idea is ludicrous lol

[Reza Sharifi · Accepted solution]

Frame relay using serial interface is very old technology and it is not used much these days anymore. Instead of that, just get a few cross over copper cables and connect 2600 to 2811 using the Ethernet ports. You can also use regular copper cables (straight) to connect the 2600 and 2800 to 3750 using all Ethernet ports. No need you to worry about serial interfaces, cables, clocking, etc.

HTH

[Leo Laohoo]

In addition to Reza's post, I don't think CCNA will cover FR/ATM anymore.