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Product page: https://vutlan.com/devices/162-55-vt825i-remote-monitoring-unit.html

Brochure: product version 1.2

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Function and purpose

The unit is used for environmental monitoring (e.g. temperature, humidity, voltage, leakage, smoke, airflow). It is also used as an I/O controller (e.g. door control, fans, generator, control panels, UPS, circuit breakers, and alarms). Can use up to 1000 different elements - notifications, triggers, timers, logic schemes, sensors, dry contacts. Has a built-in Web interface with virtual sensors, logic schemes, different types of notifications, and control panels. Has a slot for an LTE modem for an ethernet connection reservation.

Order options / Dimensions

System	Diagram
VT825i	Image ModifiedImage Modified
VT825ii	Image Modified
VT825iDC	Image Modified
VT825DC	Image Modified
VT825DCDC	Image Modified

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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9a. "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 in "CAN devises connection", and "Setting up CAN".

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• 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 (for VT335i, VT825i, VT855i, VT960i & VT960ii series and VT855t series)”.

14a. "OUTPUTS 12V 0.25A" - 12V 0.25A (for each output) terminals outputs (electronic relay). Read the instructions at "Connecting 12V devices to 12V outputs".

• "LEDs: E1, E2" - status indicators for two 12V 0.25A outputs.

• The LED is ON (orange) - and the output is ON (the initial state can be configured).

• The LED is OFF (orange) - and the output is OFF ((the initial state can be configured).

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• "LEDs: R1, R2" - status indicators for x2 relays at the back of the unit.

• The LED is ON (orange) - the relay is ON (the initial state can be configured).

• The LED is OFF (orange) - and the output is OFF ((the initial state can be configured).

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

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• 24a. "RESERVE" - Reserve power inlet. 24-48V DC, 5.08mm 2EDGK power plug, 18-72VDC to 12VDC/0.84A

• 24b. "MAIN" - Power inlet. 24-48V DC, 5.08mm 2EDGK power plug, 18-72VDC to 12VDC/0.84A

Connection overview diagram

The front panel of VT825i & VT825ii:

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The back panel of VT825ii:

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Drawing dimensions

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Installing the device into a 19" rack

Use x3 pcs of supplied screws (M3 6mm) for each bracket to fix it on each side of the enclosure as shown in the picture below. The screws and brackets are supplied with the unit.

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Installing LTE slot modem

Inventory

Technical details

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