Cisco 1721 - Manual (Page 75)

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Cisco 1721 Router Hardware Installation Guide
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Appendix C Installing and Upgrading Memory and Virtual Private Network Modules
Installing a VPN Module
Step 2 Locate the VPN module socket, and insert the VPN module, as shown in
Figure C-5 .
Figure C-5 VPN Module Location
Step 3 Pushing down as indicated in Figure C-6 , plug the VPN module into the socket.
Figure C-6 Seating the VPN Module
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