Analog sensors connection

Created by Vladimir Tayzhev
Last updated: Sep 07, 2021 by Olga T.

Analog sensors connection

Connect the analog sensor by a supplied RJ-11 (6P4C) cable to any analog port "A1 .. A8" or "Sensor" port. The determination of the sensor type and connection will occur automatically.

If strong electromagnetic interference is present, we recommend using a 3-pair cable CAN FTP for sensor connection!

6P4C RJ11 cable wiring/pinouts

1- Yellow, 2- Green, 3- Red, 4 - Black

Colors are true for this telephone cable. Both ends match the colors and pinouts (identical).

Please refer to the RJ connectors comparison table:

Daisy chain connection

Some of the analog sensors can be connected in a daisy chain. Please refer to the article "Chain connection of analog sensors".

Maximum cable length test

Model
50m100m120m150m200m
VT406DC current converter

  ok




VT407AC current converter
  ok


VT410DC voltage monitor




VT416DC ampere meter
  ok


VT417AC ampere meter 16A




VT420Converter 4-20mA
   ok


VT500Temperature sensor
ok


VT501Outdoor temperature sensor
ok


VT510Humidity sensor
x


VT530Access sensor
ok


VT540Vibration sensor
ok


VT550Wind velocity meter
    x


VT560Smoke detector
ok


VT570PIR sensor
   ok


VT590Spot water detector
ok


VT591Water leak sensor
   ok


Extending the number of analog sensors

Using CAN extension "VT408 / Sensor extension unit" it is possible to increase the number of analog sensors connected to the monitoring unit up to 80 sensors.