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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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14. “Battery Extension Slot” - Extension slot for “VT-ACCU / Rechargeable reservation battery” or “VT-6F22 / Reservation battery 9V”. Only one extension can be installed into this slot. Each extension is purchased separately.
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Connection overview diagram
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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 |  |
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2 | 
| Use x4 captive nuts and x4 M6 Screws to attached the unit to the rack. |
Installing VT485m / RTU modem extension slot
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.
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Installing LTE slot modem
VT855t has a slot for “VT740 / LTE slot modem”. The modem is ordered separately.
Extension | Photo |
|---|---|
(VT740%20LTE%20slot%20modem).png?version=1&modificationDate=1704371791323&cacheVersion=1&api=v2&width=760) (VT740%20LTE%20slot%20modem%20antennas).png?version=1&modificationDate=1704371791091&cacheVersion=1&api=v2&width=645) |
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
| Include Page | ||||
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Technical details
See a comparison table with technical details for each individual Vutlan PDU and monitoring units at:
Comparison chart: PDUs VT604t & VT608t
Frequently asked questions
Problem | Cause | Solution |
|---|
Problem | Cause | Solution |
|---|---|---|
The unit is not powering up. | The DIP switch is switched to “R” position. | Switch the DIP switch to “N” position (Normal). |
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Copyright:
Vutlan s.r.o. (LLC)
Remote Infrastructure Monitoring and Control
43 ul.Svornosti, 821 06 Bratislava,
Slovak Republic