3Com 4007, Implementation Manual, Page: 68 / 684

68 C
HAPTER
3: I
NSTALLING
M
ANAGEMENT
M
ODULES
Troubleshooting
Power-on Problems
Table 14 lists common problems that can arise when you install your EME
and possible solutions. Under normal conditions, when you install the
EME, the Status LED lights and the character display shows the EME’s
operating state.
Table 14 Power-on Troubleshooting
Symptom Meaning Corrective Action
Chassis power is on, but
ACTIVE LED does not light EME is in standby or has
failed diagnostics 1 Verify that the EME is installed correctly by following the
installation instructions in Chapter 2.
2 Install the EME in the other slot in the chassis.
3 If the LED still does not light, the software on the EME
may be corrupted. Try downloading a new copy of the
software. (See Chapter 3.) If downloading software does
not solve the problem, call your supplier for assistance.
Display reads
STBY
EME is in standby mode. 1 Wait 60 seconds to see if the EME corrects the situation
itself.
2 If more than one EME exists in the chassis, verify that
only one EME is set to Primary (using
show module
all
). Then use the
reset eme
command to alleviate
the problem.
3 Follow the corrective actions for the previous symptom.
Display reads
NRAM
EME has failed diagnostics Indicates a faulty non-volatile RAM device. Reinstall the EME
or call your supplier for assistance.
Display reads
DRAM
Indicates faulty on-board
DRAM Reinstall the EME or call your supplier for assistance.
Display reads
CARD
Indicates faulty memory
card Reinstall the card or call your supplier for assistance.
Display shows numeric
characters EMC has failed diagnostics Connect a terminal to the serial port and examine the
diagnostic messages.