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Wiring, Table 2, Wiring pins – Vaisala GMP343 User Manual

Page 26: Warning

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User’s Guide ______________________________________________________________________

24 ___________________________________________________________________M210514EN-E

Wiring

As it is shipped from the factory, the measurement range and output of the
GMP343 are scaled according to the order form completed by the
customer. The unit is calibrated at the factory. The device is ready for use
when the wiring is done and power is switched on.

GMP343 can be connected to a PC using an optional PC connection cable,
see

Table 12 on page 80

.

For more information on serial commands, see

Chapter 4, Operation, on

page 27

.

WARNING

Make sure that the main power is switched off before making any
electrical connections.

Table 2

Wiring Pins

Pin

Wire

Serial signal (RS-232 or 2-
Wire RS-485 interface)

Analog signal

1

White

RS232C: TX

RS485: A(+)

-

2

Brown

RS232C: TX

RS485: A(+)

-

3

Green

RS232C: RX

RS485: B(-)

-

4

Yellow -

-

Signal

+

5

Grey

Supply GND

Supply GND

Supply GND

6

Pink

+11...36 V DC +11...36 V DC +11...36 V DC

7

Blue

RS232C: RX

RS485: B(-)

-

8

Shield

-

-

Signal GND