VT408 Analog sensor extension unit
- Vladimir Tayzhev
- Vasily T.
Product page: https://vutlan.com/extension-boards/175-vt408-sensor-extension-unit.html
Datasheet page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/2882535425/VT408+Extension+unit+v16.1
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Function and purpose
The VT408 is an extension unit that increases the number of analog sensors connected to any Vutlan monitoring unit. Each VT408 adds 8 analog sensor ports, allowing for greater scalability in monitoring complex environments. Multiple VT408 units, along with other CAN devices or sensors, can be daisy-chained via the CAN bus port for efficient expansion. All connected sensors are automatically detected and integrated into the system, simplifying setup and ensuring seamless critical infrastructure monitoring.
Up to 10-32 CAN devices can be connected in a chain. You can connect CAN sensors or extensions on a CAN bus line.
Up to x24 VT408 units can be connected on a CAN bus line. CAN-12V-1A / CAN Power Supply has to be used to provide additional power on a CAN bus line.
Physical description
1. LEDs: "RUN" - indicates appliance connection status to the main module, "ERROR" - indicates appliance lost connection to the main module.
ERROR is lit continuously, RUN blinks - the unit has no connection with the monitoring unit.
ERROR is continuously lit, RUN repaid - extension unit communicates with a monitoring unit, however, it is not included in the monitoring system (not configured).
ERROR repaid, RUN lights up continuously - the extension unit is included in the work as part of a monitoring system.
"A1..A8" - 8 RJ12 analog sensor inputs with auto-sensing.
"TR" - If VT408 is the last unit in a CAN bus chain or if it is connected in a CAN bus chain longer than 10 meters, the terminator should be in the "TR" position (switched to the left). Otherwise the “TR” should always be switched to the right.
"CAN1 CAN2" - two equivalent digital connectors RJ12 for the connection to the master module, CAN sensors, or CAN extensions on a CAN bus, with auto-sensing.
"Power" - for connection of external power supply 12V DC.
Dimensions
Indication
The VT408 expansion module has two RUN (green) and ERROR (red) LEDs that show the following states:
ERROR continuously lit, RUN flickers - the expansion module has no connection with the master module
ERROR is continuously lit, RUN is extinguished - the expansion module has communication with the master module, but is not included in the monitoring system (not configured)
ERROR is extinguished, RUN is continuously lit - the expansion module is included in the monitoring system
Parameters
Communications | Description |
Device type | CAN bus device |
Network Interface | CAN open |
Inputs terminals | x8 analog sensor ports, RJ11/RJ12 6P4C x2 CAN ports RJ-12 |
Chain connection | Yes, can be connected in a chain with other CAN bus sensors and extensions. |
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Environmental | Description |
Operating temperature | Temperature: Min. -10° C - Max.+80° C |
Operating humidity |
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Power requirements | Description |
Max. distance from the unit | Max. bus length: 225m, Max. length of analog sensor cables: 50-150m (depends on sensor type) |
Maximum units in a chain: | You can install a maximum of x24 VT 408 units, provided that no other CAN devices are installed in a CAN chain. |
Power input | 12V DC |
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Mechanics / Packaging | Description |
Packaging weight | 0.5 kg |
Product dimensions | Size W 129 x H 28,6 x D 56 mm |
Mounting possibilities | VT123 / Wall mount brackets (ordered separately) VT125t / 19” 1U Mounting kit for x2 VT408 units (ordered separately) |
Status Indicators | Red (Error) / Green Led (Run) |
TR switch | Activate if the unit is the last unit in a CAN bus chain. |
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Genaral | Description |
Manufactured in: | Manufactured in Slovak Republic, E.U. |
HS Code: | 8471 50 000 |
GTIN: | 8588009886389 |
Warranty: |
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Mounting: Wall mount
There are x4 M3 thread holes at the bottom of the case. You can mount ‘VT123 / Wall brackets’ to these holes and then use them to mount onto the wall or surface. ‘VT123 / Wall brackets’ are ordered separately.
Mounting: DIN rail mount
There are x2 M4 thread mounting holes at the bottom of the unit. Use them to mount the ‘DRP-03 VT124 / DIN rail holder'. It can then be used to attach the device to the DIn rail.
‘DRP-03 VT124 / DIN rail holder' is purchased separately. You can also purchase it at TME.eu.
Mounting: 19” 1U rack mount
It is possible to use a ‘VT125t / 19-inch 1U mounting bracket’ to mount x2 VT408 units in one 1U rack space. "VT125t / 19" bracket" is purchased separately.
The mounting kit consists of two parts.
If you need to install the second VT408 onto the VT125t bracket by unscrewing two M3 screws.
VT125t parts unassembled.
Use M3 screws to fix VT408 on the VT125t trays.
Installation
Connect the CAN input of the unit by RJ11/RJ12 cable supplied to the CAN input of the previous CAN unit or monitoring system. The red LED lights up. Match the TR bus terminators on the attached CAN units. CAN bus terminators TR (position 2 in VT450) should be in the ON state only at the end CAN units port and in Off states (1,2) for all intermediate units. One CAN bus can have not more than 8 CAN units, sensors, and/or another CAN device.
Normally 12V 0.5A external power supply is connected to the jack labeled PWR (point 2 in the general scheme). But if the only VT408 unit is connected and the length of the cable from the monitoring unit to the VT408 does not exceed 10m the extension unit operates without any external power supply. In all other cases, the use of an external power supply is desirable.
Example connection
Setting up CAN
Page linked https://vutlan.atlassian.net/wiki/spaces/DEN/pages/1016351/CAN+configuration+panel+setting+up+CAN
Configuring VT408
Page linked https://vutlan.atlassian.net/wiki/spaces/DEN/pages/1999038/Configuring+VT408
Inventory
Copyright:
Vutlan s.r.o.
Remote Infrastructure Monitoring and Control
43 ul.Svornosti, 821 06 Bratislava,
Slovak Republic, E.U.