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Virtual sensors include PING, timers, triggers, Logic schemes, SNMP GET, x4 IP cameras, Virtual math elements, and others.
Extensions
VT485m / Modbus RTU extension or VT485r / OSPDv2 reader extension
VT-ACCU / Rechargeable reservation battery or VT-BAT / Reservation battery 6F22 9V
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System | Diagram |
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VT855t |
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VT855tt | |
VT855tDC | |
VT855DC | |
VT855DCDC |
Power Supply Priorities
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VT855t Example
The power supply inputs may differ for each Vutlan system and the options you ordered. This example only explains the general working principle.
# | Power supply |
1, 2, 3 |
These power supply lines are equivalent. The main Vutlan PCB has 3 power lines. If all three power lines are connected and active at the same time, the system chooses the input with the biggest Voltage. Normally each of these lines supplies the system with 11V. Power switching is instant. |
4 |
VT-BAT is connected to a power line 1. Because it has the lowest voltage, the system will start working from VT-BAT only in case power lines 1,2, and 3 fail (power outage). |
Physical Description
Front panel:
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22. “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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Connection overview diagram
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Power Supply Priorities
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Power supply line | Description |
1, 2, 3 |
These power supply lines are equivalent. The main Vutlan PCB has 3 power lines. If all three power lines are connected and active at the same time, the system chooses the input with the biggest Voltage. Normally each of these lines supply the system with 11V. Power switching is instant. |
4 |
VT-ACCU is charged by the power line 1. The system will start working from VT-ACCU only in case power lines 1,2, and 3 are off (power outage). |
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VT855t 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.
Installing LTE slot modem
VT855t has a slot for “VT740 / LTE slot modem”. The modem is ordered separately.
Extension | Photo |
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Installing reservation battery
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