User`s guide

User's Guide ______________________________________________________________________
12 __________________________________________________________________ M210669EN-D
RS232C/TTL
Table 3 Connections of the PTB210 Barometer with
RS232C/TTL Interface
Wire color Si
g
nal
Gre
y
RX
(
with RS232C
)
Green TX
(
with RS232C
)
Blue Groun
d
Pin
k
Su
pp
l
y
volta
g
e
(
5 ... 28 VDC
)
Brown RXD
(
TTL level
)
White TXD
(
TTL level
)
Yellow External power control
(
TTL level: 1 = off
,
0 = on
)
NOTE
The two output protocols cannot be used simultaneously. Connect
either RX/TX or RXD/TXD wires. It is recommended to isolate the
free wire ends.