Access Card; Redundant Power Supply - Cisco 10720 - Internet Router Installation And Configuration Manual

Physical and Functional Overview

Access Card

The access card is available in either of the following versions:
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There is a slot for one access card in the chassis. The card fits the lower slot of the router chassis. See
Figure 1-5
For more information about the access card, versions of the access card, and access card cabling, refer
to the Cisco 10720 Internet Router Access Cards Installation and Configuration publication.
Figure 1-5
10720-FE-TX-SM
Key features supported by the access card are listed below. For a more extensive list of features, consult
your Cisco sales representative.
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Redundant Power Supply

The Cisco 10720 Internet Router comes with either dual AC or dual DC power supplies for redundancy.
Figure 1-6
Internet Router.
Cisco 10720 Internet Router Installation and Configuration Guide
1-6
Fast Ethernet with support for copper and fiber-optic cabling
Combined Fast Ethernet and Gigabit Ethernet. The Fast Ethernet ports support copper or fiber-optic
cabling and the Gigabit Ethernet ports use small form-factor pluggable (SFP) optical and copper
modules.
for an example of a typical access card.
Typical Access Card (Front View)
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3
Fast Ethernet and Gigabit Ethernet connectivity
Ethernet Advanced Research Projects Agency (ARPA) MAC encapsulation
Time Domain Reflectometry (TDR) on 10/100BASE-TX
Autonegotiation for speed and duplex
2000 MAC addresses per port for Address Resolution Protocol (ARP)
1000 MAC addresses per Fast Ethernet port
Cisco IOS software configuration of Ethernet features
shows the AC power supply and
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Figure 1-7 shows the DC power supply for the Cisco 10720
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Product Overview
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