Cisco Systems 520 manual Serial Number Label Location, LED Indicators on the Routers

Chapter 1 Product Overview

Hardware Features

Serial Number Label Location

Figure 1-5shows 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

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 1-1describes the LEDs.

Table 1-1			LED Indicators on the Routers
	LED		Color	Description	Router
	SYS PWR		Green	On when DC power is being supplied to the router.	All Cisco Secure Router 520 Series routers
				The light blinks if an error occurs during bootup.
	WAN FE4		Green	On when a device connects to the Ethernet WAN	Cisco Secure Router 520 Ethernet-to-Ethernet
				FE4 port. Blinks when the Ethernet WAN FE4 port	router
				receives or sends data, or when data passes through
				the port.
	WLAN OK		Green	Shows whether the wireless link status is	Cisco Secure Router 520 Series wireless routers
				operational. Blinks if no client is associated. Solid	only
				green if at least one client is associated.
		Cisco Secure Router 520 Series Hardware Installation Guide
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