Vaisala GMW95 Quick Guide

9
Connecting Several Transmitters
Set the RS-485 termination jumper to “ON” on the
transmitter that is at the end of the line. This terminates
the line with a 120 Ω resistor. For location of the jumper,
see section Transmitter Body on page 4.
Connect the cable shield to ground on the building
controller side.
Transmitter
D-
-Vs
D+
+Vs
Shld
GND
Building controller Transmitter Transmitter
Power
supply
D-
D+
+Vs
-Vs
GND
SHIELD
RS-485:
BACnet or
Modbus
master
Connect shield on controller side
Set RS-485
termination jumper
D-
-Vs
D+
+Vs
Shld
GND
D-
-Vs
D+
+Vs
Shld
GND
EN

Vaisala GMW95 Specifications

General

Brand	Vaisala
Model	GMW95
Category	Transmitter
Language	English