VT336 / DIN Monitoring unit

Functional description & components

1. "LED: ACTIVITY" - green LED indicates appliance status

"LED: ERROR» - red LED indicates system error and traffic.

2. "Analog sensors: A1..A6" - x6 RJ12 analog sensor inputs with auto-sensing. Read instructions at "Analog sensors connection", "Sensor configuration".

3. "USB" - type miniAB USB-port 2.0, required to connect a USB camera, USB flash, USB hub or to restore an appliance using USB flash.

4. "CAN" - digital connector RJ12 for the connection of CAN sensors and CAN extensions on a CAN bus, with auto-sensing. Read instructions at "CAN devices connection", "Setting up CAN".

  • "CAN Status" - LED for digital bus sensors:
  • The LED blinks slowly - nothing is connected
  • The LED blinks fast - configuration is in process
  • The LED glows constantly - connected to CAN devices

5. "LAN port" - Ethernet 10/100 Base-T port, provides an Ethernet connection.

  • "LAN Link" - orange LED for Ethernet port. It shows network traffic.
  • "LAN Activity" - green LED for Ethernet port. It shows network traffic. Flashes green when the system starts up. Shows the connection state (constant green light - the connection is established, blinking green - the connection attempt).

6. "DRY CONTACT INPUTS 1...4" - Digital inputs. Read instructions at "Connecting dry contacts", "Dry contacts settings".

7. "TEMPERATURE SENSOR" - accuracy +/- 1 °C.

8. "MODE" - a DIP switch for changing system modes.

  • Normal mode 🠀:  Normal operating state. The system should be always switched to this.
  • Recovery 🠂: Turns a recovery mode On. Use this option only in case you need to recover manufacturing settings. Read instructions at "Factory settings recovery".

9. "RESTART" - button restarts the appliance. Press the button for several seconds.

10. "OUTPUT 12V 0.25A" - 12V 0.25A output electronic relay terminal. Read instructions at "Connecting 12V devices to 12V outputs".

11. "ISOLATED DRY CONTACTS OUTPUTS 1...4" - Digital outputs 24VDC / 15mA (type OUT). Read instructions at "Connecting dry contacts", "Dry contacts settings".

12. "RS-485 MODBUS RTU" - port for connecting Modbus RTU / RS-485 sensors and devices. Read instructions at "Connecting Modbus RTU sensors to VT336 & VT336PoE", "Configuring Modbus devices".

  • "RS-485 Status" - LED for displaying Modbus RTU port status.

13. "DC 12V 1A" - DC power input. Instructions are in the section below.

14. "Modem" - "VT770 / LTE, GPS modem" is ordered separately. Read instructions at "Connecting VT770 / LTE modem with GNSS", "Network: LAN, GSM, LTE, RADIUS, DNS, SSL, VPN".

  • "Modem status" - LED displays modems status.
  • "SIM card slot" - Open the top cover to insert a SIM card.
  • "GSM, LTE main antenna" - Connect GSM or LTE main antenna.
  • "LTE auxiliary antenna" - Connect LTE auxiliary antenna (Auxiliary LTE antenna and antenna output are ordered separately from the modem). It helps to establish a stronger and more stable signal.
  • "GPS active antenna" - GPS antenna and antenna output are ordered separately from the modem. Allows to set the time using GPS and shows the location of the device on the map.

Dimensions

Function & Order options & Technical specifications

Product info is located on the product page "VT336 product page".

Powering the device

:

  1. Power supply with grounding.

  2. Power supply without grounding.

Powering the device using VT-RM-9-12 / Mosfet Redundancy module

VT-RM-9-12 decouples the outputs of the power supplies (9-12VDC, Max. 5A). Automatically supplies load current (Smooth Switchover) from the system input supply with the higher voltage.

Inventory

VT336 package content

Mounting the device on a DIN rail

1
Insert the DIN rail holder as shown in the picture
2
Press the module onto the DIN rail, it should snap.
3

To dismantle the unit from the DIN rail:

  • Use a flat screwdriver and insert it into the DIN rail holder.
  • Pull the handle of the screwdriver to start pulling the DIN rail holder.
  • Now You can pull the enclosure from the DIN rail.

Mounting enclosure guards

1

  • Use pliers or a cutter to cut necessary plastic petals.
  • Use a screwdriver to make necessary holes in the plastic guards.
2
Simply slide it inside the empty spaces until it clicks.
3
Use a screwdriver to pull it out.

The system uses terminal blocks for several interfaces:
  • x4 dry contact inputs

  • x2 Electronic relay outputs

  • x2 Isolated digital outputs

  • RS-485 Modbus RTU

  • Power supply input

They share the same characteristics.

Specifications

Strip length

Wire cross-section

Screw head

Terminal blocks

Step: 5.08 mm

6 - 7 mm

0.23 - 0.27 in

2.5 mm²

0.09 in²

#26 - #12 AWG

Flat

3.5 mm

0.13 in

Using the table above, you can mount the cables.

Device configuration

  1. Initial Configuration (web interface)
  2. Configuring (web interface)







Developer notes: