Comparison chart: Master modules
VT335t, VT336t, VT825t, VT825tt, VT855t, VT855tt, VT960t and VT960tt are the monitoring units and can not connect to each other. For scalability please use extension units and embedded boards.
● Built-in □ None ♦ Extension possible ◊ Not extendable
Versions | |||||
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Device Management: Web, SNMP | Yes | Yes | Yes | Yes | Yes |
Sensor access: Three-level by login | Yes | Yes | Yes | Yes | Yes |
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Interface | |||||
LAN: Ethernet 10/100 Mbit | Yes | Yes | Yes | Yes | Yes |
OS: Linux | v.6.2 | v.6.2 | v.6.2 | v.6.2 | v.6.2 |
Interface: Any browser | Yes | Yes | Yes | Yes | Yes |
Memory RAM: | 128 Mb | 128 Mb | 128 Mb | 128 Mb | 128 Mb |
CPU speed: | 1 GHz | 720 MHz | 720 MHz | 720 MHz | 600 MHz |
Total CPU cores: | 2 | 2 | 2 | 2 | 2 |
Clock: Built-in clock | Yes | Yes | Yes | Yes | Yes |
Timer: Built-in watchdog | Yes | Yes | Yes | Yes | Yes |
The maximum amount of sensors: physical sensors, dry contacts, relays | 150 | 130 | 100 | 100 | 100 |
The maximum amount of elements: notifications, triggers, timers, logic, sensors, dry contacts, SNMP Get, SNMP Trap, Dial task, and other elements | 1000 | 1000 | 700 | 700 | 700 |
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Networking / Protocol support | |||||
LTE Gateway mode: Internet access (routing for internal network) (modem ordered separately) | Yes | Yes | Yes | Yes | No |
LTE Access mode: Internet access over LTE (modem ordered separately) | Yes | Yes | Yes | Yes | No |
Network protocols: DHCP; HTTP; HTTPS; SNMP v1, v2c, v3; SMTP; FTP; Syslog; TLS; | Yes | Yes | Yes | Yes | Yes |
Modbus RTU | Using extension VT485m | Using extension VT485m | Using extension VT485m | Using extension VT485m | No |
RS485 / OSDPv2: reader access control | Yes | Yes | Yes | Yes | No |
Modbus TCP / IP | Yes | Yes | Yes | Yes | Yes |
Static routing | Yes | Yes | Yes | Yes |
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Dynamic DynDNS | Yes | Yes | Yes | Yes | Yes |
Access via RADIUS server | Yes | Yes | Yes | Yes | Yes |
VPN: secure data communications; secure change of connection between LTE and LAN | Yes | Yes | Yes | Yes | No |
SSL installation | Yes | Yes | Yes | Yes | Yes |
NTP server | Yes | Yes | Yes | Yes | Yes |
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Alerts / Notifications | |||||
Alert types: E-mail, FTP log, Syslog, SMTP, SNMP Traps, SMS (Modem is ordered separately), Web-to-SMS, | Yes | Yes | Yes | Yes | Yes |
A maximum number of "mail to" recipients in an E-mail notification: | 20 | 20 | 20 | 20 | 20 |
A maximum number of "SMS to" recipients in an SMS notification: also the maximum amount of phone numbers | 20 | 20 | 20 | 20 |
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Virtual sensors | |||||
Pings: Built-in function for server pinging. Test the reachability of a host in a network. | Yes | Yes | Yes | Yes | Yes |
IP cameras: Connect the IP MJPEG camera with a proxy via the master module. Only view, no record. | 4 | 4 | 4 | 4 | 4 |
Get SNMP: Read data from external equipment via SNMP PDU GET (v1/2c) | Yes | Yes | Yes | Yes | Yes |
User keys: Add users who have access using an RFID reader. | Yes | Yes | Yes | Yes | No |
Logic schemes: Used to specify automatic actions to events that occur in the system. | Yes | Yes | Yes | Yes | Yes |
Timers: Allows you to plan the events in the system. | Yes | Yes | Yes | Yes | Yes |
Triggers: Generate events in the system if logic is triggered. | Yes | Yes | Yes | Yes | Yes |
SNMP traps | Yes | Yes | Yes | Yes | Yes |
Virtual Math element (combine several sensor data and calculate new data) | Yes | Yes | Yes | Yes | Yes |
Logic schemes | Yes | Yes | Yes | Yes | Yes |
Modbus TCP/IP: read/write | Yes | Yes | Yes | Yes | Yes |
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Power | |||||
Power input (230V AC): | x2 inputs option | x2 inputs option | No | No | No |
Power input (24 ÷ 48V DC): | x2 inputs option | x2 inputs option | No | No | No |
Power input (12V DC): | x1 input option | x1 input option | x2 inputs | x2 inputs | Input |
Fuse: Fuse at the inlet | 1 A | 1 A | PTC | PTC | PTC |
Min. power consumption: | 1 W | 1 W | 1 W | 1 W | 1 W |
Max. power consumption: | 10 W | 10 W | 10 W | 10 W | 6 W |
The maximum current load on the relay: | 10А | 10А | 250mА | 250mА | 250mА |
Redundant power supply: built-in voltage monitor, voltage range 9-12.6V. | Yes AC/DC DC/DC | Yes AC/DC DC/DC | Yes DC/DC | Yes DC 12V | - |
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Outputs | |||||
Relay outputs: latching relays 240V*10A | 2 | 2 | - | - | - |
Relays outputs: 12V 0.25A | 2 | 2 | 2 | 2 | 2 |
Max. dry contact outputs (contact closures/digital outputs) | 8 | - | 5 | - | - |
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Inputs | |||||
Analog port: 6P6C for connection of an analog sensor. (extendable using CAN bus) | 8 built-in ports, extended using extension unit | 8 built-in ports, extended using extension unit | 4 built-in ports,
| 4 built-in ports, extended using extension unit | 4 built-in ports, extended using extension unit |
CAN port: Max number of sensors Use CAN-12V-1A for connecting more than 12 devices. | x2 port, x32 devices in total | x1 port, max. 32 devices | x1 port, max. 32 devices
| x1 port, max. 32 devices | x1 port, max. 10 devices |
Dry contact inputs: (contact closures/digital inputs) | 32 | 16 | 8 | 4 | 2 |
Modbus RTU (RS-485): Max. line length 1000m | Using extension VT485m | Using extension VT485m | Using extension VT485m | Using extension VT485m | - |
OSDP v2 reader extension: | Using extension VT485R | Using extension VT485R | Using extension VT485R | Using extension VT485R | - |
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Video | |||||
USB cameras | x1 | x1 | x1 | x1 | x1 |
IP cameras | x4 | x4 | x4 | x4 | x4 |
RTSP IP camera | - | - | - | - | - |
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Other connectors | |||||
Ethernet port: 10/100Mbit | x1 | x1 | x1 | x1 | x1 |
Ethernet port: 10/100/1000Mit | - | - | - | - | - |
USB 2.0 Type A | - | - | - | - | - |
USB 2.0 micro | x1 | x1 | x1 | x1 | x1 |
Switch Normal / Recovery: returns the device to factory settings | Yes | Yes | Yes | Yes | Yes |
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External Memory / Logs | |||||
Micro SD memory card slot (SDXC up to 512 Gb) | Yes | Yes | Yes | Yes | Yes |
SD card formatting function (FAT32) | Yes | Yes | Yes | Yes | Yes |
USB flash drive: logs, sensor readings, item settings, etc. | Yes | Yes | Yes | Yes | Yes |
Send system log to e-mail: Logs, sensor data, elements settings, etc. | Yes | Yes | Yes | Yes | Yes |
Sensor dump files: save the per-second samples of analog and discrete sensors | Yes | Yes | Yes | Yes | Yes |
Yes | Yes | Yes | Yes | Yes | |
Send to FTP server: Logs, sensor data, elements settings, etc. | Yes | Yes | Yes | Yes | Yes |
Maximum amount of log files: 10,000 logs/days = 27 years | Yes | Yes | Yes | Yes | Yes |
Sample rate/period (logs, graphs) | 1 s | 1 s | 1 s | 1 s | 1 s |
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Modem (extension ordered separately) | |||||
4G LTE modem: ordered separately. | - | ||||
Modem modes:
| Gateway / Access / SMS | Gateway / Access / SMS | Gateway / Access / SMS
| Gateway / Access / SMS | - |
Modem LED: STATUS | Yes | Yes | Yes | Yes | - |
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Embedded onboard sensors | |||||
Temperature sensor: +/- 1 °C PCB temperature. | Yes | Yes | Yes | Yes | Yes |
Power supply voltage sensor: Accuracy (1%) | Main & Reserve | Main & Reserve | Main & Reserve | Main & Reserve | Yes |
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LED indication | |||||
Ethernet LAN: LINK | Yes | Yes | Yes | Yes | Yes |
Ethernet LAN: ACT | Yes | Yes | Yes | Yes | Yes |
CAN bus: STATUS | Yes | Yes | Yes | Yes | Yes |
System: STATUS (ACT) | Yes | Yes | Yes | Yes | Yes |
System: ERROR (ERR) | Yes | Yes | Yes | Yes | Yes |
System: ALARM | Yes | Yes | Yes | Yes | Yes |
12V 0.25A outputs: STATUS (e.g. E1, E2) | x2 | x2 | x2 | x2 | x2 |
MODBUS RTU: STATUS | VT485M | VT485M | VT485M | VT485M | - |
ODSP Reader. | VT485R | VT485R | VT485R | VT485R | - |
NC/NO/COM Relay (e.g. R1, R2) | x2 | x2 | - | - | - |
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Environmental characteristics | |||||
Operating temperature: -10 to 80 °C | Yes | Yes | Yes | Yes | Yes |
Storage temperature: –25 to 85 °C | Yes | Yes | Yes | Yes | Yes |
Operating humidity: 0 to 90 %, non-condensing | Yes | Yes | Yes | Yes | Yes |
Storage humidity: 0 to 95 %, non-condensing | Yes | Yes | Yes | Yes | Yes |
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Other Features | |||||
Installation: | 19” 1U | 19” 1U | DIN rail, Wall | Desktop | Desktop |
Casing: | Sheet metal | Sheet metal | Plastic | Sheet metal | Plastic |
Dimensions (L x W x H) in mm: | 440x44x90 | 440x44x90 | L_212.5 H_90.1 D_32.20 | 180x35x80 | 150x29x100 |
Weight: | 1,6 kg | 1,5 kg |
| 0,7 kg | 0,5 kg |
External chassis grounding: M4 thread | Yes | Yes | Yes | Yes | Yes |
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Web interface (panels) | |||||
Dashboard panel: | Yes | Yes | Yes | Yes | Yes |
Overall statistics panel: | Yes | Yes | Yes | Yes | Yes |
System tree panel: sensors and devices displayed in a hierarchy | Yes | Yes | Yes | Yes | Yes |
Dry outputs panel: | Yes | Yes | Yes | No | Yes |
Dry inputs panel: | Yes | Yes | Yes | Yes | Yes |
Event log panel: amount of logs | 300 | 300 | Yes | 300 | 200 |
Logic schemes panel: | Yes | Yes | Yes | Yes | Yes |
Cameras panel: | Yes | Yes | Yes | Yes | Yes |
Map panel: 5 layers | Yes | Yes | Yes | Yes | Yes |
Users panel: | Yes | Yes | Yes | Yes | Yes |
CAN configuration panel: | Yes | Yes | Yes | Yes | Yes |
Graphs panel: | Yes | Yes | Yes | Yes | Yes |
Reset smoke detectors panel: | Yes | Yes | Yes | Yes | Yes |
Preferences panel: Web GUI, Network, Time, Logging, DynDNS, SNMP, RADIUS, FTP backup, VPN Clent, Modbus RTU, GPS, SMTP, Routing | Yes | Yes | Yes | Yes | Yes |
System menu panel: About, Firmware, Export, Support | Yes | Yes | Yes | Yes | Yes |
List of latest sent SMS messages: | 200 | 200 | Yes | 150 | 200 |
Analog sensor power reset: resets smoke sensors | Yes | Yes | Yes | Yes | Yes |
● Built-in □ None ♦ Extension possible ◊ Not extendable