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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, but 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.
Indication
The VT408 expansion module has two RUN and ERROR 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
CAN setting
The extension module has a built-in element:
- Power - the element of relay
This element, by designation, is identical to the Analog Power element of the monitoring module. It turns on or off the power of the analog sensors.
The analog sensor power off for a few seconds is used to reset the alarm of the VT560 smoke detectors connected to the VT408 expansion module.
Warning: when the analog sensors are powered off, all external sensors connected to the VT408 cease to function.
The analog sensors connected to the VT408 are configured in the same way as the sensors connected to the monitoring module.
Parameters
Up to date parameters can be found on our official website at: VT408 / Sensor extension unit
| 1 | Product dimensions | Size W 109 x H 40 x D 68 mm |
| 2 | Packaging weight | 0.5 kg |
| 3 | Power input | 12V DC, 05A |
| 4 | Operating temperature | Temperature: Min. -10° C - Max.+80° C |
| 5 | Mounting possibilities | VT123 / Wall mount brackets (ordered separately)VT124 / Din rail holder (ordered separately)VT125 / 19” Mounting kit for x3 units (ordered separately) |
| 6 | Max. distance from the unit | Max. bus length: 225m,Max. length of analog sensor cables: 50-150m (depends on sensor type) |
| 7 | Manufactured in (country) | Manufactured in Slovak Republic, E.U. |
| 8 | HS Code | 8471 50 000 |
| 9 | Package includes | Cable BH2-16M to BH2-16M Screws 2pcs M3x5 |
| 10 | Brackets (accessories) | VT123 / Wall mount brackets (ordered separately)VT124 / Din rail holder (ordered separately)VT125 / 19” Mounting kit for x3 units (ordered separately) |
| 11 | Inputs terminals | Analog sensor ports: x8 ports RJ-12 ports: x2 |
| 12 | Extension protocols | CAN |
| 13 | Network Interface | CAN open |
| 14 | Status Indicators | LED indication for CAN bus connection LED indication for Power / Network connectivity Red / Green Led |
Inventory
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Function
VT408 module is developed to expand the number of analog sensors connected to the monitoring system. Picture below illustrates the expansion example:
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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 allowed the extension unit operation without any external power supply. In all other cases the use of an external power supply is desirable.
Dimensions for wall mounting:
Configuration
To connect CAN unit to the system, open interface and go 
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Example connection
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Indication
The VT408 expansion module has two RUN and ERROR 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
CAN setting
The extension module has a built-in element:
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(Developer notes: physical description: metal case v 14.3)