MHT Node 90 is well known for driving and controlling DC loads from Power Over Ethernet infrastructure. However, it also can interface with RS485 devices such as sensors. RS485 sensors often provide numerous parameters about the local area like air quality, occupancy, and other environmental factors. This provides tremendous awareness about the local environment.
Connect this environmental awareness to Inspextor Server to generate key insights into usage and operating conditions. Let Inspextor Server create customized control plans for optimal comfort, health and well being. All this can be achieved on the same Inspextor network by simply adding RS485 sensors to Node 90 product.
Below drawing illustrates wring a NS310 Air Quality RS485 sensor to a Node 90. Be sure to order the RS485 version of the Node 90. This version provides a spring terminal with 24V/RS485A/RS485B/GND connections. Wire the associated pins from the Node 90 to the sensor pins. The 24V/GND connections provide power to the sensor. And, RS485A/B connections provide communication.
Typical RS485 Sensor Wiring to Node 90
By using the spring terminal on the Node 90 the two channel outputs are available to drive loads. However, in some case it is more convenient to use the RS485A/B at the channel output RJ45 connectors. If channel output RJ45 connectors are used for the RS485 sensor, set the output voltage appropriate for powering the sensor. Some sensors might require particular supply voltages. The NS310 has a wide input from 5-60Vdc, so it is very accommodating for output voltage. Connecting it to a 24V supply works well.