Compatibility - ADTRAN 1181113L2 Installation And Maintenance Practice

HDSL2 for General Distribution Installation and Maintenance Practice i Enhanced Feature Overview
Figure B-4. Splice Histogram Screen
Compatibility
The H2TU-C and H2TU-R both run local detectors; therefore, a splice-detection capable
H2TU-C will be able to detect bad splices up to slightly more than half the circuit length.
Likewise, a splice detection capable H2TU-R will he able to detect had splices up to slightly
more than half the circuit from the remote end. With older (non-splice detection units) the
splice-detection capable units will not receive Embedded Operations Channel (EOC) messages
from the older units so visibility from the other end is lost. Splice detection support is not
available for two-wire repeaters.
B-7 61223HDSL2L2-5B