Page Comparison

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Datasheet page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/2903736321/VT825t

Product page: https://vutlan.com/remote-monitoring-units/182-vt825t-remote-monitoring-system.html

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

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Function and purpose

“VT825t The VT825t / Remote Monitoring System” System is used designed for comprehensive environmental monitoring (e.g. and I/O control in various industries. Its primary features include:

• Environmental Monitoring: Measures critical parameters like temperature, humidity, voltage, leakage, smoke, and airflow. Supports analog, CAN bus, Modbus TCP IP, Modbus RTU (with extension)

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• and other sensors.

• I/O Controller: Manages devices such as doors, fans,

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• generators, control panels, UPS systems, circuit breakers, and alarms

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• . You can manage relays, and dry contacts.

• Scalability: Supports up to 1000

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• elements

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• , including notifications, triggers, timers, logic schemes, and sensors

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• .

• Built-in Web Interface: Provides a user-friendly interface with virtual sensors, logic schemes,

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• notifications, and control

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Includes x8 analog sensor ports, x1 Ethernet port, x1 Micro USB port, x1 CAN sensor bus port, x2 NC/NO/COM relays, x2 12V DC 0.25A relays, x16 dry contact inputs, x1 SD card slot, power reservation option for AC and DC.

Supports a full range of Vutlan analog sensors and CAN devices/sensors. Supports Modbus TCP/IP.

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• options.

• LTE Modem Slot (extension): Ensures connection redundancy with an option for LTE modem integration in case of ethernet failure.

This system is ideal for monitoring and controlling complex environments in data centers, industrial automation, and facility management.

Extensions:

• VT740 / LTE slot modem: Ensures connection redundancy with an option for LTE modem integration in case of ethernet failure.

• VT485m / Modbus RTU extension or VT485r / OSPDv2 reader extension

• VT-BT / Reservation battery charger

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

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

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Use cases

The VT825t / Remote Monitoring System offers a versatile solution across a range of applications, making it ideal for:

1. Data Centers: It monitors temperature, humidity, leakage under raised floors, and airflow to ensure optimal conditions for servers and network equipment. It also controls cooling systems and monitors UPS status, providing alerts in case of power failures or temperature spikes.

2. Industrial Automation: The VT825t can monitor voltage, leakage, and smoke in factories or manufacturing plants while controlling machinery like fans, circuit breakers, or alarms. It ensures the safety and efficiency of automated processes.

3. Building Management: It acts as an I/O controller to monitor HVAC systems, smoke detectors, and door control systems in office buildings, ensuring proper functioning and security.

4. Telecommunication Facilities: Used to manage backup power generators, environmental conditions, and network devices, ensuring continuous uptime for telecommunications infrastructure.

5. Critical Infrastructure: For facilities like power plants or water treatment plants, it monitors environmental factors and controls equipment to prevent system failures, offering notifications and control via its web interface.

Each of these use cases takes advantage of the VT825t's robust features for environmental monitoring, logic-based control, and notifications, ensuring reliable performance in mission-critical environments.

Order options / Dimensions

System	Diagram
VT825t
VT825tt
VT825tDC
VT825DC
VT825DCDC

Physical Description

Front panel:

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Back panel:

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1. "1U 19-inch brackets" - x2 pcs for mounting brackets into a 1U 19" rack slot.

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3. "Analog sensors: A1..A8" - 8 RJ12 analog sensor inputs with auto-sensing. Read instructions at "Analog sensors connection", and "Sensor configuration".

4. "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).

5. "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".

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

5. "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

7. “USB” - Micro USB ports is needed for USB camera recording, USB Flash for system logs, and system restoration. Read instructions in "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".

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

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12. "DRY CONTACT INPUTS 1...16" - Digital inputs (Type IN). Read the instructions at "Connecting dry contacts", and "Dry contacts settings".

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

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19. "OUTPUTS 12V 0.25A" - 12V 0.25A (for each output) terminals outputs (electronic relay). LED indicators are located on the front panel. Read the instructions at "Connecting 12V devices to 12V outputs".

• 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).

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22. "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)".

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25. "MAIN INPUT 24-48V DC" - optional order option for some of the units. Please refer to the section "Order options" in this document.

Connection overview diagram

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Power Supply Priorities

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Drawing dimensions

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19” 1U installation in a rack-cabinet

1.1		x2 19” brackets should be located in the package together with the system. Use x3 M3 screws to mount the brackets on each side of the unit.
1.2
2		Use x4 captive nuts and x4 M6 Screws to attached the unit to the rack.

Installing VT485m / RTU modem extension slot

VT825t has a slot for an extension. You can install only one module in this slot. You can install the “VT485m / Modbus RTU modem extension slot” or the “VT485r / OSDPv2 reader extension slot”. Both modules are ordered separately.

Extension	Photo with the module installed
VT485r
VT485m

Installing LTE slot modem

VT825t has a slot for “VT740 / LTE slot modem”. The modem is ordered separately.

Extension	Photo
VT740

Installing reservation battery

The unit has an “Extension battery slot” at the back of the unit. You can install VT-BAT / Reservation battery 6F22 9V or VT-ACCU / Rechargeable reservation battery.

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Package content VT825t series

Technical details

See a comparison table with technical details for each individual Vutlan monitoring unit at:

https://vutlan.atlassian.net/wiki/spaces/DEN/pages/705855489

Frequently asked questions

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