Appendix b understanding tr-08, Understanding tr-08, Appendix b – ADTRAN TSU 120e User Manual
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TSU 120 User Manual
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Appendix B
Understanding TR-08
The TSU 120 chassis functions as a Remote Terminal in Digital Loop
Carrier
and as Integrated Digital Loop Carrier Systems as described in
TR-TSY 000008. The TSU 120 supports SLC96 framing, Mode I opera-
tion, ORB-13 and ORB-16 alarm formats, alarm reporting, and user-de-
finable BPV threshold detection rate.
A basic familiarity with DLC systems, IDLC systems and TR-TSY-
000008 is assumed, but the following information will be useful:
•
All received TR-TSY-000008 specific alarms are reported locally
within the history feature of the TSU 120.
•
When the DISABLE ALARMS option is selected, no alarms will be
sent on the DLF, but received alarms will be reported locally in the
history.
•
Other alarms normally reported by the TSU 120 will also be placed
in history.
•
Each TSU 120 needs to be configured as the A SHELF, as it is provi-
sioned as a separate entity.
•
All alarms will refer to A SHELF when received from TSU 120.