Ok Led Diagnostics; Troubleshooting Wics And Vics - Cisco 1751V Hardware Installation Manual

Chapter 3 Troubleshooting

OK LED Diagnostics

Troubleshooting WICs and VICs

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ISDN configuration—Consider ISDN-specific hardware and software
•
configurations (ISDN BRI WICs only).
Use the front-panel OK LED to help determine any problems with the router.
When the router first boots up, it performs a power-on self-test (POST). If the
router detects a problem during the POST, the OK LED blinks in a different
pattern (described in Table
number of blinks that is repeated until the router is turned off. If the router
experiences any of these problems, contact your Cisco reseller.
Table 3-1 OK LED Blinking Patterns
Number of Blinks
2
3
4
5
6
9
Use the show diag command to help determine problems with a card.
Router# show diag
Slot 0:
C1751 1FE VE DV Mainboard Port adapter, 7 ports
Port adapter is analyzed
Port adapter insertion time unknown
EEPROM contents at hardware discovery:
Hardware Revision
PCB Serial Number
Part Number
Fab Version
3-1), depending on the problem. A pattern is a specific
Meaning
The 860P dual-port RAM (DPRAM) failed.
The parameter RAM area of the 860P DPRAM failed.
The 860P system protection control register has a write
failure.
The router cannot detect the dynamic RAM (DRAM).
The user programmable machine has a write failure.
The router DRAM failed.
: 89.71
: JAB30343106
: 73-5128-02
: 04
Cisco 1751 Router Hardware Installation Guide
Problem Solving
3-7