I have copied the details from the Installation and Maintenance Manual:
The fault deals with Tone Refection.
Clear Hardware Error Table by C H at the @-prompt.
Run TE L 1 again. If error repeat, replace the LIC-2.
If all lines fail, check configuration or Main Board as possible cause. If Error repeats, replace MB and metal case.
What does the BLFDP; say in the MD110.
It can be the LIC-2 or the configuartion in the VMX or MD110. Have you changed anything in the two systems??
Did you have other alalrms in the VMX-100 or MD110 before this fault?.
Do you use a proper grounding between the MD110 and the VMX-100?
Maybe I can supply a LIC-2 if needed.
Please remember that the VMX-100 has been phased out by both Ericsson and OCTEL/AVAYA.
Yours ///doktor