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Cisco 1721 - VPN Security Router Bundle Hardware Installation Manual page 32

Hardware installation guide
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Additional Required Equipment
Table 1-6
Additional Required Equipment
Equipment
Ethernet hub
Ethernet switch
Phillips screwdriver
Cisco WIC
Straight-through RJ-45-to-RJ-45
cable
Serial cable
NT-1
Asynchronous modem
Cisco 1721 Router Hardware Installation Guide
1-10
When You Use It
A hub connects pieces of network equipment (including the
Cisco 1721 router) to create a network. You can use a 10-, 100-, or
10/100-Mbps hub with the Cisco 1721 router.
A switch connects pieces of network equipment (including the
Cisco 1721 router) to create a network. You can use a 10-, 100-, or
10/100-Mbps switch with the Cisco 1721 router.
Although the WICs use thumbscrews, you might need a Phillips
screwdriver to loosen the WIC slot cover.
In order to make a WAN connection, the Cisco 1721 router must
have a supported WIC installed. The router supports up to two
cards. You can order the cards when you order the router, and they
will be installed for you. Or, you can order the cards separately, after
you receive the router, and then install them yourself.
This cable connects the router to the Ethernet LAN and connects the
WICs to various WAN services, including ISDN, T1/FT1, and
56-kbps services. You will need one cable for each connection that
requires this cable type.
This cable connects a serial card to serial services. You must order
this cable from Cisco. For detailed information about serial cable
types, refer to the Cisco WAN Interface Cards Hardware
Installation Guide, which comes with every card.
Some ISDN service providers require a Network Termination 1
(NT-1) device to connect an ISDN S/T port to the ISDN line.
Connect a modem to the AUX port on the router when you want to
configure the router from a remote location.
Chapter 1
Cisco 1721 Router Overview
78-13834-02

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