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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.273 MEA (EQPT)
The MEA alarm for equipment is reported against a card slot when the physical card inserted into a slot
does not match the card type that is provisioned for that slot in CTC. The alarm also occurs when certain
cards introduced in Release 3.1 or later are inserted into an older shelf assembly or when older Ethernet
cards (E1000-2 and E100T-12) are used in a newer 10-Gbps-compatible shelf assembly.
Removing the incompatible cards clears the alarm.
Note For more information about Ethernet cards, refer to the Cisco ONS 15454 and
Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide.
Note If an OC3-8 card is installed in Slot 5 to 6 and Slot 12 to 13, it does not appear in CTC and raises an
MEA.
Clear the MEA (EQPT) Alarm
Step 1 Physically verify the type of card that is installed in the slot reporting the MEA alarm. In node view,
click the Inventory tab and compare it to the actual installed card.
Step 2 Determine whether the ONS 15454 shelf assembly is a newer 10-Gbps-compatible shelf assembly
(15454-SA-ANSI or 15454-SA-HD) or an earlier shelf assembly. Under the HW Part # column, if the
part number is 800-19857-XX or 800-19856-XX, then you have a 15454-SA-ANSI shelf. If the part
number is 800-24848-XX, then you have a 15454-SA-HD shelf. If the number is not one of those listed
above, then you are using an earlier shelf assembly.
Note On the 15454-SA-HD (P/N: 800-24848), 15454-SA-NEBS3E, 15454-SA-NEBS3, and
15454-SA-R1 (P/N: 800-07149) shelves, the AIP cover is clear plastic. On the 15454-SA-ANSI
shelf (P/N: 800-19857), the AIP cover is metal.
Step 3 Verify the type of card that sits in the slot reported in the object column of the MEA row on the Alarms
window by reading the name at the top of the card faceplate.
• If you have a newer 10-Gbps-compatible shelf assembly (15454-SA-ANSI or 15454-SA-HD) and
the card reporting the alarm is not an E1000-2 or E100T-12, proceed to Step 4.
• If you have a newer 10-Gbps-compatible shelf assembly (15454-SA-ANSI or 15454-SA-HD) and
the card reporting the alarm is an E1000-2 or E100T-12, then that version of the Ethernet card is
incompatible and must be removed. Proceed to Step 4.
Note The E1000-2-G and E100T-G cards are compatible with the newer ANSI
10-Gbps-compatible shelf assembly and are the functional equivalent of the older,
noncompatible E1000-2 and E100T-12 cards. E1000-2-G and E100T-G cards can be used as
replacements for E1000-2 and E100T-12 cards in a 10-Gbps-compatible shelf assembly.
• If you have an older shelf assembly and the card reporting the alarm is not a card introduced in
Release 3.1 or later, which includes the OC-192, E1000-2-G, E100T-G, or OC-48 any slot (AS),
proceed to Step 4.
• If you have an older shelf assembly and the card reporting the alarm is a card introduced in Release
3.1 or later, which includes the OC-192, E1000-2-G, E100T-G, or OC-48 any slot (AS), the
reporting card is incompatible with the shelf assembly and must be removed Proceed to Step 4.
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