Cisco Systems OL-11497-03 manual System Status LEDs, Reset AUX Coll RX Link MII

Chapter 1 Product Overview

Route Processors

Flash memory also functions as a Trivial File Transfer Protocol (TFTP) server to allow other servers to boot remotely from stored images or to copy them into their own Flash memory. The onboard Flash memory (called bootflash) contains the Cisco IOS boot image, and the Flash memory card contains the Cisco IOS software image. To order a spare Flash memory card, use Cisco product number MEM-GRP-FL20=, which is a 20-MB Type II PCMCIA Flash memory card.

System Status LEDs

The GRP faceplate contains two types of system status LEDs: alphanumeric LED displays and device or port activity indicators.

The device or port activity indicators (see Figure 1-6) consist of the following functional groups:

•Two Flash memory card activity LEDs (labeled SLOT-0 and SLOT-1)—one LED per Flash memory slot—Turns on when the slot is accessed.

•Four RJ-45 Ethernet port activity LEDs (labeled LINK, COLL, TX, and RX)—These LEDs are used only by the RJ-45 Ethernet connector and are disabled when the media-independent interface (MII) Ethernet port is in use. The LEDs indicate link activity (LINK), collision detection (COLL), data transmission (TX), and data reception (RX).

•Two Ethernet port selection LEDs (labeled MII and RJ-45)—When on, these LEDs identify which one of the two Ethernet connections you selected. When the RJ-45 port is selected, its LED is on and the MII LED is off. When the MII port is selected, its LED is on and the RJ-45 LED is off.

Figure 1-6 GRP LEDs (Partial Front Panel)

EJECT	SLOT0
	1
	-
	-
	SLOT

RESET AUX

	COLL RX
LINK	TX

	-45
	RJ
MII	57075

The alphanumeric LED displays (see Figure 1-7) are organized as two rows of four characters each. The content of the displays is controlled by the MBus module software. Both rows of the display are powered by the MBus module.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03		1-21