ADTRAN TRACER User Manual page 39

61280.003L1-1B
than the other. Changing the spreading code at each end may
also allow interference to be mitigated.
R BERT
EMOTE
The Tracer includes a Bit Error Rate Tester (BERT) to verify that
the installed system is operating correctly. When the "Remote
Test" button is pushed on the local BBP, the remote end will send
a BERT pattern for approximately ten seconds. The "Remote TST"
indicator will turn yellow and remain on for the duration of the
test. If no bit errors are detected, the "Remote TST" indicator will
turn off. If any bit errors are detected, the "Remote Fail" indicator
will turn red. This test should be run after the radio link has been
aligned. If the test fails, refer to Section 4, "Troubleshooting," for
guidance.
A C
LARM ONTACTS
Two sets of alarm contacts are provided on the rear of the BBP:
major alarm and minor alarm. A major alarm indicates the radio
link is not operational. A minor alarm indicates that system
performance is degraded or that the T1 interfaces are experiencing
errors. Normally-open and Normally-closed contacts are provided
for both alarm types. Under normal operating conditions there is
no continuity between the Normally-open and Common contacts
and under an alarm condition continuity between those contacts
exists. The Normally-closed and Common contacts normally have
continuity, while under alarm conditions, these contacts are open.
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NSTALLATION