Vaisala PTU300 - Manual (Page 43)

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 41
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
1104-126
Figure 21 Pinout of the Optional 8-Pin Connector
Table 7 Wiring of the Optional 8-Pin Connector
Pin Wire Serial Signal Analog Signal
RS-232 (EIA-232) RS-485 (EIA-485)
1 White Data out TX D1+ 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 D0- 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.