
Chapter 3 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 37
5. Connect the power supply wires to the connectors: POWER
10...35V+ 24V~ (+) and (-) terminals. If you are using 24 VAC
power supply, see the note below before connecting the supply
wires.
6. Turn on the power. The indicator led on the cover is lit
continuously during normal operation.
7. Close the cover and replace the cover screws. The transmitter is
ready for use.
8-Pin Connector
0503-026
Figure 21 Wiring of Optional 8-Pin Connector
Table 7 Wiring of 8-Pin Connector
PIN/Terminal Wire Serial Signal Analog Signal
RS-232 (EIA-232) RS-485 (EIA-485)
1 White Data out TX A Ch 3-
2 Brown (serial GND) (serial GND) Signal GND
(for channels 1&2)
3 Green - - Ch 2+
4 Yellow - - Ch 1+
5 Grey Supply - Supply - Supply -
6 Pink Supply + Supply + Supply +
7 Blue Data in RX B Ch 3+
8 Shield/Red Cable shield Cable shield Cable shield
NOTE
The 8-pin connector cannot be used with relay modules or power supply
module that have AC (mains) power connection.
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