Installation guide

Installing a WAN Interface Card in a Cisco 1720 Router or Cisco 1600 Series Router

Cisco WAN Interface Cards Hardware Installation Guide

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Note If any WAN interface card slot on the chassis is unoccupied, install a ﬁller

panel to enable proper airﬂow.

Step 7 If the router was previously running, reinstall the network interface cables and

turn ON power to the router.

After installing the WAN interface card into the router, proceed to Chapter 3, “Connecting

WAN and Voice Interface Cards to a Network.”