3com 8807 User Manual
Hardware Maintenance
81
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The fans are working normally.
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The rotation of the fans has not been blocked.
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The blank filler panels have been inserted into the I/O module slots.
Troubleshooting I/O
Module
The Switch 8800 Family provides I/O moduleX LEDs on the fabric so that you can
check the state of these I/O modules.
check the state of these I/O modules.
Hardware
Maintenance
Maintenance
Replacing AC PSU
c
CAUTION: The Switch 8800 Family’s PSU is hot-swappable. Refer to the
document entitled “3Com Switch Family Safety and Regulatory Information,” part
number 10015300, for information about how to install and set up your switch
safely. Also:
document entitled “3Com Switch Family Safety and Regulatory Information,” part
number 10015300, for information about how to install and set up your switch
safely. Also:
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The Switch 8800 Family uses multiple power systems, and you must turn off all
of them when removing the AC PSU.
of them when removing the AC PSU.
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The PSU of the Switch 8800 Family is heavy. Use both hands to pull it out
slowly and gently, with one holding its handle and the other holding its
bottom.
slowly and gently, with one holding its handle and the other holding its
bottom.
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If you are not installing a replacement PSU, insert a blank filler panel into the
PSU slot so that dust cannot get into the unit and to allow proper ventilation
PSU slot so that dust cannot get into the unit and to allow proper ventilation
Removing an AC PSU
To remove an AC PSU:
1 Change the power switch on the PSU from the ON position into the OFF position.
2 Pull right the clamp holding the power cord connector and unplug the power
cord.
3 Unscrew the screws on the both sides of the PSU panel with a flathead
screwdriver.
Table 77 I/O Module LEDs
Indicator
State description
RUN
ON indicates an I/O module failure.
OFF indicates that the I/O module has failed or it is not in position
at all.
at all.
Blinking indicates that the I/O module is working normally.
ALM
OFF indicates that there is no I/O module alarm or that the I/O
module is not in position at all.
module is not in position at all.
ON indicates that there is an I/O module alarm.
2~6 (Switch 8807)
0~3, 6~9 (Switch 8810)
0~5, 8~13 (Switch 8814)
On the Switch 8807, I/O module 0 through I/O module 4
respectively correspond to slots 2 through 6.
respectively correspond to slots 2 through 6.
On Switch 8810, I/O module 0 through I/O module 7 respectively
correspond to slots 0 through 3 and 6 through 9.
correspond to slots 0 through 3 and 6 through 9.
On Switch 8814, I/O module 0 through I/O module 11 respectively
correspond to Slots 0 through 5 and 8 through 13.
correspond to Slots 0 through 5 and 8 through 13.