Installation guide

4-3
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 4 Troubleshooting the IGX
Troubleshooting an IGX Node
SDI card FAIL indicator on. SDI card failed:
• SDI (EIA/TIA232) card
• SDI (EIA/TIA449) card
• SDI (V.35) card
Indicates an error occurred. Check alarm status of
card. First, reset the card with the resetcd f
command. If the LED comes on again, reseat card.
If the LED comes on again, call the Cisco TAC.
For more information, refer to the “Obtaining
Technical Assistance” section on page xxiii.
The FAIL indicator on any of the
following card sets came on, but
the replacement card does not fix
the problem: UXM-E, UFM,
ARM, CVM, LDM.
Defective backplane is possible
(very uncommon).
Note All cards connect to the
backplane, and if the
backplane is defective, it
can cause a fault on any
card.
If new card does not fix the problem, contact the
Cisco TAC. For more information, refer to the
“Obtaining Technical Assistance” section on
page xxiii.
Blown backplane fuse (very
uncommon).
See the backplane fuse section in Chapter 5,
“Replacing Parts on the IGX.”
Power Supply AC or DC Okay
LED off.
Possible power supply defect. Re-seat supply per instructions in Chapter 5,
“Replacing Parts on the IGX.” Remove and
replace power supply if defective.
PE-BC wiring or card defective.
1. If power supplies output checks out, then
PE-BC wiring connections or card is suspect.
2. Make sure that the plug connection to the
PE-BC card is secure; tighten if it is not.
3. If the plug connection is secure and the Power
Supply Monitor FAIL indicator is still on,
then remove and replace the SCM card.
Command-line display incorrectly
shows wrong IGX system type.
Jumper switch W6 in wrong
position (see the “Making Frame
Relay Connections” section on
page 3-36).
To indicate an IGX 8420 node, the jumper must be
in place. To indicate an IGX 8430 node, the
jumper must be absent.
SCM circuitry that reads W6
setting might be defective.
Verify SCM circuitry with a known good SCM.
Symptom Probable Cause Solution