Stock availability type:  B - small quantities in stock


This is another model in a DIN rail mounting housing, but with a "double-decker" configuration with an increased number of I/O terminals. This is the first model with inputs for temperature sensors type NTC (TNS010) - up to 4 pieces. Another novelty is the two ports for connection to Wiegand readers (for chips, cards, barcodes, etc.). The standard 8 alarm (analog) inputs and 8 pcs. relay outputs are also available. All input-output circuits are led out on screw terminals.

icon newThe model supports "Passive PoE In" - it can be powered with (11-15)VDC through the free pairs of the UTP cable: 4/5='+', 7/8='-'

You can open a comparison table of different models from here.


Input-output channels in NetControl 8R4NT2WG8A

  • switch on-off/reboot (relay 2xN.O + 6xSPDT) of up to 8 appliances for up to 7A/240VAC (with ability of automatic reboot on PING lost to 8 IP addressеs)
  • 4 pcs. input for NTC temperature sensor (TNS010)
  • 2 pcs. Wiegand 26/34 input for data transfer from card/chip readers over MQTT (no built-in module for processing interface information)
  • 8 alarm inputs for mechanical contact/button or AC voltage detector VDS300 for signalization (SNMP trap,MQTT, SPC Cloud) of events. Other sensors also possible to connect here, as inputs are analog type.
  • Housing made of light gray ABS V0 (self-extinguishing); dimensions 105x65x90mm


Basic functions and network protocols supported

  • 10/100 BASE-T Ethernet (Auto MDI/MDIX) with differential overvoltage surge protections
  • Supported protocols ARP/DHCP/ICMP/TCP/IP/SNTP/SNMP/TFTP client/WEB server/MQTT/SPC Cloud
  • 802.1q VLAN support
  • SNMPv1 (ONLY snmpget/snmpset) protocol for access to all parameters and functions
  • SNMP traps and MQTT events generation on input change
  • Flexible user-defined system of sequences of actions (Macros)
  • Start of macros on analog input change (Automation)
  • Start of Macros on PING lost to IP addresses (PING monitor)
  • Real-time software clock (RTC) with the ability to start Macros at user-defined time
  • WEB access to all parameters and functions
  • TFTP client for firmware update
  • Firmware update in Web interface



  • "House/Room Controller" for hotels, guest houses, etc.
  • Access control systems with remote control/access over IP
  • Automation systems with remote access via the Internet
  • IP alarm system, such as panic buttons in hotels or security of telecommunication cabinets.
  • restart (automatically in case of PING loss / manually) of network equipment (routers, ADSL modems, servers, etc.)
  • general purpose 8 channel relay module with Web/SNMP/MQTT/SPC Cloud/ModbusTCP control
  • Remote temperature monitoring systems


um icon Application notes


um icon User manual, specs and SNMP MIB


firmware Latest firmware image (also publicly available by TFTP at

IMPORTANT! Before updating, please read "FirmwareRevisionHistory.txt" from archive for information on how the new version will affect your current settings!


firmware Beta firmware with support of MQTTs (TLSv1.2)