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Cisco 1721, 1760, 2621XM, 2651XM, 2691, 3725, and 3745 Modular Access Routers and 7206-VXR NPE-400 Router FIPS 140-2 Non-Proprietary
OL-6083-01
The Cisco 1721, 1760, 2621XM, 2651XM, 2691, 3725, 3745, and 7206 VXR NPE-400 Routers
Figure 5 Cisco 1721 and 1760 Front Panel LEDs
Table 2 and Table 3 provide more detailed information conveyed by the LEDs on the front panel of the
Cisco 1721 and 1760 routers:
Cisco 1700 Series
10/100 ETHERNET
AUX
CONSOLE
PWR OK PVDM 0
OK
PVDM 1
OK
MOD
OK
ACT COL FDX 100 LINKSLOT 0
OK
0 1 SLOT 1
OK
0 1 SLOT 2
OK
0 1 SLOT 3
OK
0 1
99393
THESE SLOTS ACCEPT ONLY VOICE INTERFACE CARDS
Slot 3
LEDs
Slot 2
LEDs
Slot 1
LEDs
Slot 0
LEDs
PVDM 0/1
OK LEDs
MOD
OK LED
Router
OK
Power LED
Auxiliary
port
Ethernet
port
Ethernet
LEDs
PWR
ACT
ACT/CH0
ACT/CH1
OK
ACT/CH0
WIC0
WIC1
ETH
ACT/CH1
COL
Table 2 Cisco 1721 Front Panel LEDs and Descriptions
LED Indication Description
PWR Green Power is supplied to the router
Off The router is not powered on
OK Green The router has successfully booted up and the software is functional. This
LED blinks during the power-on self-test (POST)
Off The router has not successfully booted up
WIC 0
ACT/CH0
Green Serial and DSU/CSU cards—Blinks when data is being sent to or received
from the port on the card in the WIC0 slot
ISDN cards—On solid when the first ISDN B channel is up for the card in
the WIC0 slot
2-port serial cards—Blinks when data is being sent to or received from the
first port on the 2-port card in the WIC0 slot
WIC 0
ACT/CH1
Green Serial and CSU/DSU cards—Remains off
ISDN cards—On solid when the second ISDN B channel is up for the card
in the WIC0 slot
2-port serial cards—Blinks when data is being sent to or received from the
second port on the 2-port card in the WIC0 slot
WIC 1
ACT/CH0
Green Serial and DSU/CSU cards—Blinks when data is being sent to or received
from the port on the card in the WIC1 slot
ISDN cards—On solid when the first ISDN B channel is up for the card in
the WIC1 slot
2-port serial cards—Blinks when data is being sent to or received from the
first port on the 2-port card in the WIC1 slot
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