Cisco Systems Cisco 3600 Reading Front-Panel LEDs, Figure A-1 Cisco 3620 Router Front-Panel LEDs

Appendix A Troubleshooting

Reading Front-Panel LEDs

•Router boots, but the console screen is frozen.

–Check the external console connection.

–Verify that the parameters for your terminal are set as follows:

(a)The same data rate as configured for the router (9600 bps is the default)

(b)8 data bits

(c)No parity generated or checked

(d)2 stop bits

•Router powers on and boots only when a particular module is removed.

–Check the module. Refer to the warranty information in the quick start guide that shipped with your router, or contact customer service.

•Router powers on and boots only when a particular cable is disconnected.

–There may be a problem with the module or cable. Refer to the warranty information in the quick start guide that shipped with your router, or contact customer service.

Reading Front-Panel LEDs

Front-Panel LEDs on Cisco 3620, Cisco 3640, and Cisco 3660 Routers

The LEDs on the front panel of the router enable you to determine router performance and operation. Figure A-1through Figure A-3show the LEDs on the front panel of the router. For an explanation of these LEDs see:

•Table A-1—Describes the system LED

•Table A-2—Describes the Redundant Power System (RPS) LED

•Table A-3—Describes the power supply LEDs (PS1 and PS2)

•Table A-4—Describes the Active, Ready, and PCMCIA LEDs

Figure A-1 Cisco 3620 Router Front-Panel LEDs

		0	1	PCMCIA
				1	15278
SYSTEM	RPS	ACTIVE
		READY		0
	CON	AUX

RPS	Console	Network module	PCMCIA	PCMCIA
LED	port
System		status LEDs	slots	LEDs
	Auxiliary
LED
	port

Cisco 3600 Series Routers Hardware Installation Guide

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