
Chapter 3 _______________________________________________________________ Installation
VAISALA_______________________________________________________________________ 35
D-9 Connector
0712-017
Figure 19 Wiring of Optional D-9 Connector
Table 3 Pin Assignments to RS-232/485 Serial Output
Pin Wire
Color
Serial Signal Analog Signal
+RS232
RS-232 (EIA-232) RS-485 (EIA-485)
1Red
2 White TX TX
3 Black RX RX
4 (optional) Yellow External power control External power control External power control
5 Brown Ground Ground
6 Green LO Aout
7 Blue Ground for supply voltage Ground for supply voltage GND supply
8Grey HI AGND
9 Orange Supply voltage (10...30
VDC)
Supply voltage (10...30
VDC)
Supply
NOTE
The D-9 connector cannot be used with relay modules or power supply
module that have AC (mains) power connection.
NOTE
The D-9 connector is not IP65 protection classified.
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