TED 1001 - Appendix B Troubleshooting Guide; RDU LED Communication Issues

Energy, Inc. • 3297 Pacific Street • Charleston, South Carolina 29407 • (843) 766-9800
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A P P E N D I X B
T R O U B L E S H O O T I N G
SYMPTOM
I plugged the RDU in and
the LED began to ash,
even before the MTU was
installed.
POSSIBLE CAUSE SOLUTION
There is another TED on
the line.
Insure that RDU House
Code matches the MTU
House Code.
MTU Green LED is not
ashing once per second.
Circuit breaker not turned
on
Poor connection
Wrong voltage
Turn on circuit breaker
Check connections
Check voltage with
voltmeter between black
and white conductors.
Acceptable voltage range is
100 - 130 Volts.
RDU Green LED is not
ashing.
MTU LED not ashing
Wrong house code
MTU connected to opposite
phase than RDU
Surge suppression plug
strips are causing the data
signal to be lost to ground
Check MTU.
Insure house code set in
RDU matches MTU.
Change MTU connection to
same phase as RDU.
Unplug any plug strips
with surge suppression
capacitors.
RDU LED ashes once per
second, but every once in a
while fails to ash (misses
a beat).
The MTU sends data to
the RDU once per second.
The LED ashes every time
a good packet of data is
received. This should be
once per second. A missed
beat indicates that a packet
of data was missed that
second. This may signal a
poor data connection or too
many TED’s transmitting
on the line.
Check to make sure that
both RDU and MTU are on
the same phase.
If it only skips a beat every
once in a while, it is not a
signicant problem. TED
automatically compensates
for missed data
transmissions.
RDU LED ashes
sporadically.
Poor data connection.
Check to make sure the
RDU and MTU are on the
same phase.
If you are in an apartment
block or multi-family hous-
ing, there may be too many
TED’s transmitting on the
line. Contact Tech Support.