VT335t Monitoring unit

Documentation page: https://vutlan.atlassian.net/l/cp/Z5ujzQHc

Product page: https://vutlan.com/remote-monitoring-units/178-vt335t-monitoring-unit.html

Brochure: https://vutlan.com/index.php?controller=attachment&id_attachment=119

Drivers: https://vutlan.atlassian.net/wiki/spaces/DRIV/pages/2912583997/Latest+Vutlan+drivers+for+T+series+VT325t+VT335t+VT825t+VT855t

Other names: Rack monitoring and control unit, Monitoring and control unit, Mini monitoring and control unit, I/O module, environmental logging,

Keywords: SNMP monitoring,

Function and purpose

The VT335t Remote Monitoring Unit is a cutting-edge solution designed for comprehensive environmental monitoring and control across various applications. This unit excels in tracking critical parameters, including temperature, humidity, voltage, leakage, smoke, and airflow, making it ideal for environments like data centers, industrial facilities, and server rooms.

Key Features:

Environmental Monitoring: The VT335t continuously measures essential environmental factors to ensure optimal conditions, preventing equipment damage and operational failures.
I/O Control Capabilities: It functions as an I/O controller, enabling control over doors, fans, generators, UPS systems, and circuit breakers. This ensures efficient management of operational workflows.
Flexible Configuration: Users can manage up to 1,000 different elements, including notifications, triggers, timers, and logic schemes, allowing for tailored monitoring solutions that meet specific needs.
User-Friendly Interface: A built-in web interface provides access to virtual sensors, logic schemes, and diverse notification types, simplifying user interaction and enhancing accessibility.
Remote Connectivity: With a dedicated slot for an LTE modem, the VT335t ensures a reliable Ethernet connection, making remote monitoring and management convenient and efficient.

Sensor support

Analog sensors, CAN devices/sensors. Modbus TCP/IP.

Possible extensions:

Accessories:

“VT122t / 19” holder” - supports x1 slot for VT335t & x1 slot for VT408

“VT124 / DIN rail holder” (also named DRP-03)

“VT123 / Wall mounting brackets”

Notifications

E-mail, FTP log, Syslog, SMTP, SNMP Traps, Web-to-SMS, and PUSH.

Protocols

DHCP; HTTP; HTTPS; DynDNS; SSL; SNMP v1, v2c, v3; SMTP; FTP; Syslog; RADIUS; Modbus RTU; OpenVPN.

Virtual sensors

PING, timers, triggers, Logic schemes, SNMP GET, x4 IP cameras, Virtual math elements, and others.

Use cases

Data Centers: Monitor critical environmental conditions to safeguard sensitive equipment.
Industrial Applications: Control operational equipment and automate responses to environmental changes.
Agricultural Settings: Manage humidity and temperature in greenhouses to optimize crop growth.
Rack / Cabinet manufacturers: Server rack or Electrical cabinet environmental monitoring of parameters adds an additional value when selling racks and adds technological innovation and value to the company.

Physical Description

Front panel:

Back panel:

1. "Analog sensors: A1..A4" - x4 RJ12 6P4C analog sensor inputs with auto-sensing. Read instructions at "Analog sensors connection", and "Sensor configuration".

2. "CAN" - digital connector RJ12 6P4C for the connection of CAN sensors/extensions/devices on a CAN bus. Modules can be chained together. Read the instructions in "CAN devises connection", and "Setting up CAN".

"LED: CAN" - green LED indicates CAN bus status.
The LED blinks slowly - nothing is connected
The LED blinks fast - configuration is in process
The LED glows constantly - connected to CAN devices

3a. "Restart" - the button restarts the appliance. Hold the button for 2 seconds and then let go, and the system will restart.

3b. "Reset settings" - reset settings to default factory settings. Keep pressing the button for more than 5 seconds. The “ERR” LED will start blinking. This indicates that the factory restoration has started. Wait for 20-60 seconds for the system to restart. The “ACT” LED will start blinking once the system has been restarted. The device can be accessed now.

"USB" - micro USB-port 2.0 is needed for USB camera recording, USB Flash for system logs, and system restoration. Read instructions at "Connecting USB camera", "USB camera settings. How to save a video", "Saving system logs on USB flash drive", and "USB upgrade or restore of default settings".
"LAN port" - Ethernet 10/100 Base-T port, provides an Ethernet connection. Read more in this section "LAN, GSM, LTE, RADIUS, DNS, SSL, VPN".

"Orange LED" - orange LED for Ethernet port. It shows network traffic.
"Green LED" - 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).

6a. "LED: ACT" - green LED indicates appliance system status,

- operating mode of the device: switches at a frequency of 2 times per second;
- successful completion of the software update process: switches at a frequency of 4 times per second;

6b. "LED: ALARM" - The LED can be programmed from the interface for alarm indication.

6c. "LED: ERR" - red LED indicates error and traffic.

the operating mode of the device: If everything is normal, the LED is extinguished, if not - there's a constant glow;
software update mode: switches at a rate of 2 times per second;

6d. "LED: CAN" - green LED indicates CAN bus status.

6e. "LEDs: E1, E2" - status indicators for two 12V 0.25A outputs on the front panel.

7a. "Dip switch"

Normal mode: The switch is switched to the left ←. The switch should be always in this position.
Restore of appliance: The switch is switched to the right →. Used to load the clean system image from an SD card. Read instructions at “Restore of appliance”

7b. "SD card" - MicroSD card slot with an ejector. The card is needed for data storage or the "system restore". Read instructions at "Saving system logs to SD card", and "Restore of the appliance (for VT960 series)"

8. "Chassis grounding" - Chassis grounding, M4 thread. Enhances the immunity of the equipment against conducted and radiated RF disturbances. Please contact a professional electrician before connecting it.

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

10. "OUTPUTS 12V 0.25A" - 12V 0.25A (for each output) terminals outputs (electronic relay). Pitch 3.81mm, 3P. Read instructions at "Connecting 12V devices to 12V outputs".

"LEDs: E1, E2" - status indicators for two 12V 0.25A outputs on the front panel.
The LED is ON (orange) - the output is ON (the initial state can be configured).
The LED is OFF (orange) - the output is OFF ((the initial state can be configured).

11. "DRY CONTACT INPUTS 1...4" - Digital inputs (Type IN). Pitch 3.5mm, 6P. Read the instructions at "Connecting dry contacts", and "Dry contacts settings".

12. "Modem slot" - "VT740 / LTE slot modem" can be installed in this slot. This modem is ordered separately. Read instructions at "VT740 / LTE slot modem", and "LAN, GSM, LTE, RADIUS, DNS, SSL, VPN".

“Extension slot” - Only one of the two extensions can be installed “VT485m / Modbus RTU extension” or “VT485r / OSDP v2 reader extension”.

14. "DC 12V BACKUP POWER" - 12V DC 2A alternative power input. Pitch 3.81mm, 2P.

15. "DC 12V POWER"- 12V DC 2A main power input.

Connection overview diagram

Drawing dimensions

DIN rail installation

“VT124 / DIN rail holder” (also named DRP-03) for mounting on DIN rail. VT124 is ordered separately. The package includes a holder and screws.

Wall installation

“VT123 / Wall mounting brackets” for mounting onto the wall. The package includes 2 brackets and screws.

19” 1U installation in a rack-cabinet

“VT122t / 19” holder” for mounting onto a 19” 1U rackmount.

Installing LTE slot modem

VT335t has a slot for “VT740 / LTE slot modem extension”.

A modem (point 12 in the picture above) can be installed (purchased separately) inside the system.

Extension	Photo

Extension	Photo
VT740

Extending the number of sensors and devices connected to the system

Example	Picture	Link

Example	Picture	Link
1		You can connect CAN sensors and devices in a CAN bus chain. Read more at: CAN devices connection Setting up CANUNDEFINED
2		VT408 / Analog sensor extenion unit increases a number of connected analog sensors. Each unit adds x8 ports. This is a CAN device. Multiple devices can be connected in a CAN bus chain. See example #1. Read more at: VT408 Analog sensor extension unit
3		Increases a number of connected dry contact inputs. Each unit adds x64 or x32 contacts. Read more at: VT440 / Dry contacts unit & VT32 / Dry contacts board extension
4		Add sensors and devices. See available devices: Sensors and meters www.vutlan.com