Vaisala PTB210 (analog) - Manual (Page 13)

Chapter 3 ________________________________________________________________ Installation
VAISALA________________________________________________________________________ 11
Connections
Connect the wires of the PTB210 barometer according to Table 1. Use
the pink wire for the supply voltage (8 ... 18 VDC), and the blue wire
for grounding. The output signal is read from the white wire and
grounded with the brown wire.
The gray and green wires are used to connect the barometer to PC
when using the calibration Wizard software, or to Vaisala PMI20
digital barometer display. As a ground, use the blue wire.
If an external power control is used, its signal wire is connected to the
yellow wire.
It is recommended to isolate the free wire ends.
Table 1 Connections of the PTB210 Barometer with Analog
Output
Wire color Signal
Grey RX
Green TX
Blue Ground
Pink
Supply voltage (8 ... 18 VDC)
Brown V
out
ground
White V
out
Yellow External power control
(TTL level: 1 = off, 0 = on)