I have a cisco 3725 router.
I'm using a wan interface card with 2 port. And There is one a blank interface.
but it's printed "DO NOT INSTALL WAN INTERFACE CARDS WITH POWER APPLIED" on the blank interface card faceplate.
I dont' know it what means is.
Is it means that I don't add a new wan interface card ?
what's that means ?
I need ur help now.