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Cisco Secure Router 520 Series Hardware Installation Guide
OL-12892--01
Chapter 1 Product Overview
Router Models
Figure 1-3 shows the front panel of the Cisco Secure Router 520 ADSL-over-POTS wireless router. The
front panel contains the LEDs, ports, reset button, and antenna. The antenna is available only with the
wireless router.
Figure 1-3 Cisco Secure Router 520 ADSL-over-POTS Wireless Router—Front Panel
Cisco Secure Router 500 Series
231357
543
6
2
1
1 LEDs 2 Four 10/100BASE-T RJ-45 Fast Ethernet
switch ports
3 ADSL-over-POTS port 4 Reset button
5 RJ-45 console port 6 Antenna (wireless router only)
The back panel is identical for all the Cisco Secure Router 520 Series routers (see Figure 1-2 on
page 1-3). The back panel contains the Kensington security slot for securing the router and the input jack
for the AC adapter.
Cisco Secure Router 520 ADSL-over-ISDN Routers
The Cisco Secure Router 520 ADSL-over-ISDN router is a routing device that uses an asymmetric
digital subscriber line (ADSL) over integrated services digital network (ISDN). These routers have an
integrated 4-port Fast Ethernet switch for connecting to the LAN and an ADSL-over-ISDN physical
interface for connecting to the WAN. This feature allows the router to connect a small business or a
teleworker to a central office or an Internet service provider (ISP) over an ADSL interface.
Two router models are available:
• Cisco Secure Router 520 ADSL-over-ISDN (without wireless functionality).
• Cisco Secure Router 520 ADSL-over-ISDN Wireless (with wireless functionality). The wireless
router supports the use of a single 2.4-GHz antenna.