with relay
Relay
terminal
block
Load resistors are not used in
digital models. Slide all three
switches to the left to avoid
loading the RS-485 network.
wiring label
RELAY
4-20 mA / COMM
POWER 24VAC/VDC
1
2
3
4
5
6
7
8
9
Figure 21. Wiring the digital duct-mounted monitor
Network termination
resistor switch must
be off (down) unless
at the end of network
wiring label
10
1
IAQPoint2™
without relay
Network termination
resistor switch must
be off (down) unless
at the end of network
Load resistors are not used in
digital models. Slide all three
switches to the left to avoid
loading the RS-485 network.
RELAY
4-20 mA / COMM
POWER 24VAC/VDC
2
3
4
5
6
7
8
9
10
23