User`s guide

Chapter 5 ____________________________________________________________ Technical Data
VAISALA______________________________________________________________________ 141
0903-023
Figure 63 SDI-12 Jumper of DSU232-C
Table 32 DSU232-C Jumper Settings
Jumper Connected
Pins
Function
X3 1-2 Pin 5 is GND (default, compatible with the old
DSU232)
2-3 SDI-12 connected to pin 5