Installation guide

4-4
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
Neither Okay LED on a power
supply is on.
Defective fan or fans in cooling
assembly is allowing the
temperature in the enclosure to rise
above 40° C.
Verify that fan tray fans are working. If not,
replace tray according to instructions in Chapter 5,
“Replacing Parts on the IGX.”
Defective power supply fan in
power supply allowing the power
supply temperatures to rise above
40° C.
1. If the system cooling fan assembly is
functioning correctly, then a power supply fan
is suspect. Remove cover over power supplies
to determine if fan is rotating. Replacing a
power supply fan is not a field repair. Replace
the supply.
2. Issue a dsppwr command at the control
terminal to check to see if the power supply
fans are rotating, if not, remove and replace
the power supply with the defective fan.
3. If power supply fans are functioning, then the
power supply temperature sensor is defective.
Remove and replace the temperature sensor
Defective SCM card.
1. If both the enclosure fan assembly and the
power supply fans are working correctly, then
the SCM card is suspect.
2. Remove and replace the SCM card.
Console screen blank, IGX
indicator lights on.
Control terminal switched off. Switch on the control terminal.
Control terminal power cord
disconnected.
Reconnect the control terminal power cord to
208/240 VAC power outlet.
EIA/TIA-232 cable loose or
disconnected from the control
terminal port on the SCM, or from
the control terminal.
Reconnect the EIA/TIA-232 cable to Control
Terminal port on the SCM back card or to the
control terminal itself.
Control terminal malfunctioning. Refer to the control terminal manufacturer's
manual.
Printer not functioning. Printer switched off. Switch on the printer.
Printer out of paper. Renew the paper supply.
Printer power cord disconnected. Reconnect the printer cord to 208/240 VAC power
outlet.
EIA/TIA-232 cable loose or
disconnected from the control
terminal port on the SCM, or from
the printer.
Reconnect EIA/TIA-232 cable to the Control
Terminal port on the SCM back card or to the
printer itself.
Printer malfunctioning. Refer to the printer manufacturer's manual.
Symptom Probable Cause Solution