Installation guide

Cisco 1720 Router
Cisco WAN Interface Cards Hardware Installation Guide
1-12
Cisco 1720 Router
The Cisco 1720 router is a small, modular desktop router that links small- to medium-size
remote Ethernet and Fast Ethernet LANs over one to four WAN connections to regional and
central offices. (See Figure 1-7.)
The Cisco 1720 router includes one Fast Ethernet port and two WAN interface card slots.
Figure 1-7 Cisco 1720 Router Rear View
Table 1-3 lists WAN interface card options available for the Cisco 1720 router with their
minimum software requirements for Cisco IOS Release 12.0.
17369
Interface card slot WIC1
FDX
LNK100
WIC0OK
WIC1OK
CONSOLE
AUX
Cisco 1720
Interface card slot WIC0
10/100 ETHERNET
+5, +12, -12 VDC