Vaisala DMP248 - Connecting the Rs 232 C Serial Bus

OPERATING MANUAL_______________________________________________________________
28_____________________________________________________________________M210492EN-A
Connecting the RS 232C serial bus
RX
GND
TX
NC
OPENED COVER OF THE DMP248
X6
FIGURE 4-4 Serial bus connections.
To connect a PC to the DMP248 transmitters via the RS 232C serial
bus, one of the following cables is required. The type of cable depends
on the terminal and the connector type.
2
5
3
3
7
2
3
7
2
TX
GND
RX
TX
GND
RX
TX
GND
RX
DMP248
D9S
D25S
D25P
PC
TXD
RXD
TXD
TXD
RXD
RXD
4
6
7
8
5
6
8
20
TERMINAL
FIGURE 4-5 Three connection examples.