TT-3026L easyTrack Transceiver
Installation Manual
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4.5
T
ROUBLESHOOTING
Example: When the 4 Impulses/meter (4 Imp/m) output from
tacho graph model MTCO 1324 (VDO) is correctly installed to
the TT-3616T interconnection box, the signal measured on
terminal block J2 between GND and AUX3 with an
oscilloscope will look like Ch1 on Figure 16 (0-8.5V signal)
when the vehicle is on the move.
Figure 17 Normal Tacho graph signal
The output from TT-3616T measured on terminal block J1
between GND and pin 9 will look like Ch2 on Figure 16 when
the TT-3026L transceiver is correctly installed. This signal is
basically the 4 Imp/m pulse divided by 100.
In case the grounding is not performed correctly, the signal
measured on terminal block J2 between GND and AUX3 might
