Cisco 10720 Configuration Guide - Page 32

Physical and Functional Overview Chapter 1 Product Overview Access Card The access card is available in either of the following versions: • 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. 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 an example of a typical access card. 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 Typical Access Card (Front View) LEAIRCNTRIKO(VREG)(R) LEAIRCNTRIKO(VREG)(R) 10720-FE-TX-SM 1 2 5 6 9 10 13 14 17 18 21 22 3 4 7 8 11 12 15 16 19 20 23 24 PCAORWDERFAIL 66571 Key features supported by the access card are listed below. For a more extensive list of features, consult your Cisco sales representative. • 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 Redundant Power Supply The Cisco 10720 Internet Router comes with either dual AC or dual DC power supplies for redundancy. Figure 1-6 shows the AC power supply and Figure 1-7 shows the DC power supply for the Cisco 10720 Internet Router. Cisco 10720 Internet Router Installation and Configuration Guide 1-6 78-13062-10