VT825 Data Center Monitoring Unit
Description
The VT825 / Data Center Monitoring Unit can be used for remote environmental monitoring in data centers. Its primary features include:
Environmental Monitoring: Measures temperature, humidity, voltage, access, smoke, dust, vibration, access, leakage, movement, airflow.
I/O Controller: 8 analog inputs, CAN input, 16 dry contacts, 4 relays, SD, USB, Modbus and LTE extension.
Scalability: Supports up to 1000 elements, including sensors, virtual sensors, logic, notifications.
Built-in Web Interface: Provides a user-friendly interface, 100Mbit/s.
Extensions: LTE modem, Modbus, Reader.
- Notifications: Telegram, push, mail; VPN, SMS and voice call in case of LTE modem built-IN.
- Processor: 720Mhz dual-core Cortex-A7, 128Mbit RAM.
Use cases
The VT825t is a simple, reliable device for monitoring the environment in a medium-sized data center.
- Data centers: The system controls temperature, humidity and airflow to ensure optimal conditions for servers and network equipment.
- Critical Infrastructure: Manages equipment to prevent system failures, offering notifications and control via a web interface.
Models
VT855 offers power reservation options when ordering the system.
VT825t :
230V AC power input.
VT825tt :
Two 230V AC power, providing a redundant power supply.
VT825DC :
24-48V DC power input.
VT825DCDC :
Two 24-48V DC power inputs providing a redundant power.
VT825tDC :
Power inputs: 230V AC and 24-48V DC. The device supports redundancy.
Hardware specifications
- Grad A
- Plug & Play
- 5 level thresholds
- Hysteresis for alert delay if the sensor value jumps to fast
- Linear formula for sensor value adjustments
- Math element for calculating your own formulas
- Graphs, multi-graphs
- Ethernet 10/100 Base-T
- VT740 LTE modem ordered separately
- SMS notifications
- Ethernet, VPN network reservation
- Connect CAN devices in a daisy chain
- Restart button
- Factory reset
- N-R switch
- Activity, Error, Alarm
- 12V relays
- NC-NO-COM relays
- Receive voltage free signals from devices and sensors
- Connect KMS-30 access sensor
- Install VT-ACCU backup battery board
- 24-48V DC and 230V AC options
- 12V DC terminal for a battery
- Control power loads
- E.g. light source, fan, aircon unit.
- Control VT103 alarm beacon
- Control VT105 strobe light
- Control VT11 relay contact switch
- Control other 12V DC devices
- Temperature
- Voltage sensors
- Chassis grounding
Extensions

VT7670 4G modem
Allows to receive and send SMS notifications. Provides Ethernet reservation over 4G.
RS485 slot

VT485r Reader extension
Allows you to connect readers via the OSDP protocol.
or

VT485m Modbus extension
Allows control of up to 32 Modbus RTU devices.
Battery slot

VT-ACCU Rechargeable backup battery
The device uses two 3.7 V lithium batteries of size 14500. It is not recommended to operate until the batteries are completely discharged!
or

VT-BAT Backup battery 9V
Keeps the device operational while the main power source is disabled. The device uses a non-rechargeable 6F22 9V lithium battery.
Advanced technology
From sensing to connecting, from data to the power that transforms the world, what we do matters.
Advanced protocols
Vutlan supports most popular communication protocols & adding more...
SNMP v1, v2c, v3
Simple Network Protocol for connecting multiple Vutlan units to a single DCIM, NMS, and Infrastructure monitoring software.
+
Modbus RTU,
Modbus TCP
Modbus serial communication protocol designed for industrial automation systems, and industrial meters.
+
OSDPv2 RS485
Open Supervised Device Protocol is an access control communications standard for readers, & keypads.
+
and other...
DHCP, HTTP, HTTPS, SMTP, FTP, Syslog, TLS, DynDNS, RADIUS, SSL, NTP, OpenVPN
Pushing limits
The most powerful monitoring and control systems in the world!
OS Linux
v.6.2
Processors
720 MHz, 2 Cores
Maximum sensors
130 physical sensors
Maximum elements
1000 virtual elements
Built-in web interface
All Vutlan monitoring devices have a built-in multilingual web interface for monitoring and managing the device.
Here you can configure notifications and alerts, logic schemes, user access rights, sensors and elements.
You can also view sensor graphs, logs and camera images.


Add more analog sensors using VT408 extension unit.
Each VT408 extension unit connected to the Vutlan monitoring device via the CAN bus adds the ability to connect 8 analog sensors to the system.
Sensors connected to the unit are automatically displayed in the system.
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Add more Dry contacts using VT440
The VT440 / Dry Contacts extension unit increases the number of Dry contacts that can be connected to any Vutlan monitoring device.
Each VT440 device adds 32 dry contacts. Each VT440 + VT32 expansion module adds 64 dry contacts.
A tab for monitoring and configuring dry contacts is available in the Vutlan device interface.


Connecting CAN sensors
You can connect multiple CAN devices to a CAN bus chain.
Each VT408 unit in the CAN bus chain adds 8 analog sensors. Each VT440 unit adds 32 or 64 dry contact inputs to the system.
An additional CAN12V-1A power supply is only required if the number of CAN devices in the CAN bus chain exceeds 12 pieces.
Centralized Infrastructure Management Software using SNMP protocol
No matter how complex your IT infrastructure is, you can manage all assets using DCIM SNMP software, infrastructure management software.
Vutlan supports SNMP v1, SNMP v2c, SNMP v3. Hence the data from Vutlan monitoring units can be monitored from any SNMP managemnt software package.
Software
Multilingual Web Interface with setup wizard, with time setup, built-In vector map with floors, with Logic, Graph, Logs, Outlets and Dry contact tabs.
- Duplicator license is purchased separately
- Multiple devices settings over a large area
- Upload configuration and firmware
- USB camera (MJpeg stream)
- IP cameras (MGpeg, only view)