Will NM-1E2W's work in a 2620XM?

Corndork2

Will NM-1E2W's work in a 2620XM? I was thinking of running one in each of my two 2620XM's and connecting them via crossover T1 cable to simulate vlans and how to configure them.... will this work?

tiersten

No. Combo NMs which give you an Ethernet interface and WIC slots don't work at all in a 2600 or 2600XM.

down77

I found this out the hardway and tiersten is correct. My NM-1E2W and NM-2E2Ws are currently in my 3640.

This may help:

WAN Interface Card (WIC) / Platform Hardware Compatibility Matrix for 1600, 1700, 2600, 3600 and 3700 Series Routers - Cisco Systems

tiersten

Whilst the combo NMs don't work at all, the FE NM does work in a 2600XM even though they're not officially supported or listed as compatible. The built in FE port in a 2600XM uses a similar Ethernet chip so it already has the necessary driver built into IOS. I guess there is some NM bus issue or just plain product series differentiation going on here.

Obviously YMMV and don't complain to me if it doesn't work.