101510 Rev. AG Page 6–
When the unit is transmitting data, the voltage should vary between +5 VDC
and 0 VDC. This would indicate that the RRTS is working correctly.
3) If any inaccuracy exists, investigate the wiring errors or damaged wires.
If a communication problem still exists and the unit has
passed the tests in steps 1 and 2, additional testing will be
required.