User's Manual

4.3.5
DI/GPS Function Selection (SW2)
If the GPS module with Dead Reckoning function is used, the digital inputs 3/4 will be
used as inputs of GPS module. DIP switch (SW2) is used to select the function on DI 3/4
(Digital Input 3/4).
Table 4.7: Pin 9 of COM8 Function Selection (J3)
Digital Input GPS (for Dead-Reckoning)
SW2.1 OFF ON
SW2.2 ON OFF
SW2.3 OFF ON
SW2.4 ON OFF
TREK-550 User Manual
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