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Rs232c/ttl – Vaisala PTB210 (serial) User Manual

Page 14

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User's Guide ______________________________________________________________________

12 __________________________________________________________________ M210669EN-D

RS232C/TTL

Table 3

Connections of the PTB210 Barometer with
RS232C/TTL Interface

Wire color

Signal

Grey RX

(with RS232C)

Green TX

(with RS232C)

Blue Ground
Pink Supply voltage (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.