Vaisala WMT52 - Manual (Page 57)

Chapter 6 ________________________________________________________ Connection Options
VAISALA_______________________________________________________________________ 55
Connection Through M12 Bottom
Connector or Screw Terminal
Checking/changing the device settings can also be made through the
M12 bottom connector or screw terminal. Then you have to have know
the communication settings of the device, have a suitable cable between
the device and the host and, if needed, use a converter (for example, RS-
485/422 to RS-232, if the host is a PC). The factory defaults settings are
as follows:
Table 5 Default Serial Communication Settings for M12/
Screw Terminal Connection
Serial Interface Serial Settings
SDI-12 1200 baud, 7, E, 1
RS-232, ASCII 19200 baud, 8, N, 1
RS-485, ASCII 19200 baud, 8, N, 1
RS-422 ASCII 19200 baud, 8, N, 1
RS-422 NMEA 4800 baud, 8, N, 1