Cisco Systems 3700 Series manual Reading Rear Panel LEDs

Appendix A Troubleshooting

Reading Rear Panel LEDs

Table A-2	Cisco 3745 Router Front-Panel Indicators
LED Indicator	State	Description
SYS PS1	Off	Power supply not present, or failed.
and
	Solid green	Power supply installed and operating normally.
SYS PS2
	Amber	Power supply installed and powered off, or fault condition
		detected.
–48V PS1	Off	–48-V power module not present, or failed.
and
	Solid green	–48-V power module installed and operating normally.
–48V PS2
	Amber	–48-V power module installed and powered off, or fault
		condition detected.

Reading Rear Panel LEDs

The LEDs on the rear panel of the router enable you to determine router performance and operation. Figure A-3and Figure A-4show the LEDs on the rear panel of the router. For an explanation of these LEDs, see Table A-3and Table A-4.

Figure A-3 Cisco 3725 Router Rear-Panel LEDs

NM-HDV

BANK 4					AL
	BANK 3			VWIC	LP	SEE
		BANK 2		2MFT-E1	CD
						MANUAL
			BANK 1		CTRLR E2	BEFORE
				BANK 0	CTRLR E1	INSTALLATION	TD	RD	LP	AL

V0	SEE			CD
		MANUAL BEFORE		DSU
			INSTALLATION
EN				56K

FastEthernet 0/1

FastEthernet 0/0

TD	RD	LP	AL		CD
	SEE
	MANUAL BEFORE			INSTALLATION	DSU
					56K

SEE MANUAL BEFORE INSTALLATION

CF

72133

Table A-3	Cisco 3725 Router Rear-Panel Indicators
LED Indicator		State	Description
CF		Off	CompactFlash (CF) memory card can be
			ejected; device is idle.
		Solid or blinking green	Do not eject the CF; it is busy.
Fast Ethernet 0/0 ACT		Off	Interface not receiving packets.
and
		Solid or blinking green	Interface receiving packets.
Fast Ethernet 0/1 ACT
Fast Ethernet 0/0 LINK		Off	No link established.
and
		Solid green	Link is established.
Fast Ethernet 0/1 LINK

Cisco 3700 Series Routers Hardware Installation Guide

A-6 OL-2180-08