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Adtran H2TU-R Card (1223026L2) Normal Status Lights

Adtran H2TU-R card (1223026L2)
Image = Typical Normal Status - Bolded Below = Likely Failures  (Beta to be Determined)
Description & Suggested Action (Likely Failures in Bold)
DSL Red No DSL sync, errors detected or signal quality < 2db. // Call your Carrier.
DS1 Red Premise equipment T1 issue. // Call your Vendor.
ALM Red/Yellow Loss of signal from Carrier/loss of signal to Carrier (to the C Card).
ESF/SF Yellow/Green ESF is most common so expect Yellow.
B8ZS/AMI Yellow/Green ESF is most common so expect Yellow.
LLB Green/Yellow Active remote loopback toward this Card. This Device is in loopback.

For more information or to have your device listed please contact Infotel Systems

The Story Behind "Status Lights"

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