Reinstalling The Eme; Verifying Eme Operation - 3Com 4007 Getting Started Manual

62 C 6: M
HAPTER AINTAINING THE

Reinstalling the EME

To reinstall an EME module:
Before you start the reinstallation process, read
1
"Safety Precautions" and "Handling Precautions"
earlier in this document.
WARNING: Hazardous energy levels exist inside of
the chassis. Do not place hands or objects into the
chassis or touch components on an inserted module.
Open the module ejector handles.
2
Insert the module into the module guides. Hold the
3
module horizontally with the LEDs at the left. The
module guides are on the sides of the slot.
CAUTION: Be careful not to twist or bend the EME
module as you insert it.
Slide the EME module into the chassis by pressing
4
firmly on the front panel.
To engage the EME connectors and backplane
5
connectors, apply pressure to the module front panel
with one hand while you push the ejector handles
inward toward the front panel with your other hand.
You feel a slight resistance as the connectors engage.
CAUTION: If the resistance is too great, the EME
connectors and backplane connectors may not be
aligned. Forcing the EME inward can damage the
module connectors or backplane connectors. If
necessary, remove and reinsert the EME, ensuring
that the connectors are properly aligned. Do not
tighten the spring-loaded screws to seat the module.
Ensure that the module remains fully seated in the
backplane connector while you close the ejector
handles.
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WITCH
To secure the module to the chassis, use a flat-blade
6
screwdriver to tighten the spring-loaded screws to
Torque Specification 3 to 5 inch-pounds.
CAUTION: To ensure adequate cooling airflow, install
blank faceplates over all empty slots.

Verifying EME Operation

To verify that your EME is operating correctly, watch
the LED status display during system power-on.
shows the sequence of characters that appears in the
LED character display during a successful system
power-on.
Table 10 LED Character Display During Power-on
Characters in Display
random characters
none (blank display)
Diag
Cksm
Stby
Rdy
If the character display on the EME shows
you power on the EME, an error condition exists:
The expansion card is incorrectly installed.
The on-board DRAM failed.
If one of these error conditions exists, remove and
reinstall the expansion memory card.
Indicate
Power-on has begun.
Power-on continues.
The EME is running self-diagnostic
tests.
The EME is calculating the check-
sum value.
The EME is in standby mode, if it is
a backup.
The EME is active and ready, if it is
a master.
when
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