Cisco Systems 520 Cisco Secure Router 520 ADSL-over-POTS Routers

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Cisco Secure Router 520 Series Hardware Installation Guide
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Chapter 1 Product Overview
Router Models
Figure 1-2 shows the back panel of the Cisco Secure Router 520 Series router. It contains the Kensington
security slot for securing the router and the input jack for the AC adapter. The back panel is identical for
all the Cisco Secure Router 520 Series routers.
Figure 1-2 Cisco Secure Router 520 Series Router—Back Panel
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1Kensington security slot 2Input jack for the AC adapter
Cisco Secure Router 520 ADSL-over-POTS Routers
The Cisco Secure Router 520 ADSL-over-POTS routers use an asymmetric digital subscriber line
(ADSL) over plain old telephone service (POTS). These secure routers have an integrated 4-port Fast
Ethernet switch for the LAN and an ADSL-over-POTS physical interface for the WAN. This feature
allows the router to connect a small business or a teleworker to a corporate LAN and to the Internet.
Two router models are available:
• Cisco Secure Router 520 ADSL-over-POTS (without wireless functionality).
• Cisco Secure Router 520 ADSL-over-POTS Wireless (with wireless functionality). The wireless
router supports the use of a single 2.4-GHz antenna.