Manual
Installation Instructions for Innotech IG04 BACnet Gateway and Vaisala Transmitter / Sensor
Page 7 © Mass Electronics Pty Ltd 2011Edition 5.0 dated 11/11/2013
Table 1: M12 Pin-outs for WXT520 / WMT52
Wire Colour M12 Pin# RS-485
Blue 7 RX-
Grey 5 RX+
White 1
Green 3
Pink 6 Vh- (heating GND)
Yellow 4 Vh+ (heating supply voltage)
Red 8 Vin- (operating GND)
Brown 2 Vin+ (operating supply voltage)
Please take extreme care to ensure when installing and wiring that the wire colours and terminals correctly match
as illustrated in Figure 1 or Figure 2, and described below in Table 1. Refer to the appropriate Vaisala technical
documentation for more details at www.vaisala.com.
NOTE NOTE
Exact minimum cable specications for the power supply will vary, and are installation specic. Ensure to select the
correct cable to carry the current load as required.
NOTE NOTE
Vaisala Device 8-Pin M12 Connector Pin-Outs