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Cisco Secure Router 520 Series Hardware Installation Guide
OL-12892--01
Chapter 1 Product Overview
Hardware Features
Serial Number Label Location
Figure 1-5 shows the serial number label, which is located on the back of the
Cisco Secure Router 520 Series routers.
Figure 1-5 Serial Number Location on the Back of the Cisco Secure Router 520 Series Router
231487, 781-00540-01
SN: XXXNNNNXXXX
SN: XXXNNNNXXXX
LED Indicators on the Routers
The LEDs, which are located on the router’s front panel, indicate the status or activity on the router.
Table 1-1 describes the LEDs.
Ta b l e 1-1 LED Indicators on the Routers
LED Color Description Router
SYS PWR Green On when DC power is being supplied to the router.
The light blinks if an error occurs during bootup.
All Cisco Secure Router 520 Series routers
WAN FE 4 Green On when a device connects to the Ethernet WAN
FE4 port. Blinks when the Ethernet WAN FE4 port
receives or sends data, or when data passes through
the port.
Cisco Secure Router 520 Ethernet-to-Ethernet
router
WLAN OK Green Shows whether the wireless link status is
operational. Blinks if no client is associated. Solid
green if at least one client is associated.
Cisco Secure Router 520 Series wireless routers
only