ADTRAN DSU III TDM Manual page 76

Chapter 6. Configuring Network Options
For 64 kbps clear channel operation, the DTE data sequences
might mimic network loop maintenance functions and
erroneously cause other network elements to activate loopbacks.
To prevent this, the S
both the local and remote DSU III TDM.
6-2
CRAMBLER
DSU III TDM User Manual
O option should be selected for
N
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