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Adtran H4TU-R Card (1246026L4) Normal Status Lights

Status LED's For Adtran H4TU-R card (1246026L4)
Description & Suggested Action (Likely Failures in Bold)
DSL1/DSL2 Unlit No sync. // Call your Carrier.
Red Poor signal quality. // Call your Carrier.
Yellow Marginal signal quality. // Call your Carrier.
RED - Flashing Error detected on HTU-C or HTU-R. // Call your Carrier.
DS1 Unlit Premise equipment T1 signal not present or wrong format. // Call your Vendor.
RED - Flashing Premise equipment T1 signal errors. // Call your Vendor.
ALM Red Local alarm at HTU-R Card detected.
Yellow Remote alarm at HTU-C Card detected.
ESF/SF Unlit Unframed mode. // Call your Carrier.
Yellow ESF Framing
Green SF Framing
B8ZS/AMI Yellow B8ZS
Green AMI
LBK Yellow Active local loop back at the HTU-R.

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

The Story Behind "Status Lights"

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