Vaisala PTU200 Series Guía de usuario Pagina 10

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USER'S GUIDE_______________________________________________________________________
6 ____________________________________________________________________ M210195EN-A
T
ABLE 3-1 Pin assignment for RS 232C/TTL serial output
PIN SIGNAL
1 TX with diode
2 TX/TXD/TXD inverted
3 RX/RXD/RXD inverted
4 external power on/off control
5 ground for the RS 232C
6
7 ground for supply voltage
8
9 supply voltage (10...30 VDC)
TABLE 3-2 Pin assignment for optional RS 232C/485/422
PIN SIGNAL
1 TX with diode
2 TX/TXD/TXD inverted
3 RX/RXD/RXD inverted
4 external power on/off control
5 ground for the RS 232C
6 RS 485/422 LO
7 ground for supply voltage and TTL level serial interface
8 RS 485/422 HI
9 supply voltage (10...30 VDC)
The factory settings of the PTU200 series transmitters are the
following:
TABLE 3-3 Serial interface factory settings
Baud rate 9600
Parity even
Data bits 7
Stop bits 1
Duplex full duplex
After having made the electrical connections, switch the power on,
and the transmitter responds indicating its type and the software
version.
PTU200 / 1.01
>
The transmitter is now ready to respond to any command available.
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