Welotec Routers TK500

In 2017 we are expanding the range of our Welotec routers by a new family, i.e. units marked as TK500. The new model is a compromise between the simplicity of the TK700 router configuration and the speed available in the TK800. New technology solutions have made it possible to offer lower prices than in models of the TK700 family with similar functionality!


The TK500 is available in 3G version (HSDPA, HSUPA, and HSPA) and LTE version. LTE technology, in addition to increased speed, significantly reduces communication latency (improving network responsiveness), and ensures greater connection stability due to higher interference immunity and increased network cell capacity. Of course, the routers also support older 2G technology (GPRS, EDGE). The most important feature of mobile communication solutions is the stability of connection with the network of the mobile operator. The TK500 routers, like the older models, have two built-in connection testing mechanisms. The first, low-level, one checks if communication with the PPP server (PPP LCP echo) is possible. The second mechanism tests whether the operation of the link itself is correct by sending test frames (ICMP ping) to the specified IP address. This ensures that the router responds quickly to a connection loss and restores the smooth operation of the link. In the vast majority of cases, these incidents are not noticeable for the user.

The routers are equipped with five Ethernet connectors, one of them can work as a WAN port. In addition, the TK505L-W is equipped with a Wi-Fi module for connecting additional devices. It supports IEEE 802.11n standard with the maximum transfer rate of 300 Mbit/s. The routers also allow you to set up VPN tunnels (Virtual Private Network – these are point-to-point connections over a private network or a public network such as the Internet), which enable secure data transmission over a cellular network. The devices on both sides of the tunnel are not visible from the network in which the tunnel is established, nor do they themselves have access to addresses outside the tunnel. Such solutions allow safe and trouble-free communication with remote devices, e.g. in order to reconfigure PLCs or ATM monitoring. The routers support the following tunnelling protocols: IPsec, OpenVPN, and GRE. The TK500 is equipped with RS-232/485 serial port. It can be used to work with an external virtual COM port server, enabling remote support for older devices and also for the ones without remote operation capability. In addition, the serial port can be used to communicate with ModbusRTUenabled devices. The router can perform auto-translation of ModbusRTU to ModbusTCP enabling the devices communicating over the serial port to be visible on the network as ModbusTCP devices. The TK500 housing is more compact than that of the TK700 or TK800, and thus requires less space in the cabinet. It is a sturdy metal structure with IP30 protection class for mounting on a DIN rail and, using a special hanger, screwed directly to a flat surface.

TK515L router basic features:

  •  5-band GSM / GPRS / EDGE / UMTS / HSDPA / HSUPA / HSPA + / LTE modem with automatic session setup and restore
  • Five galvanically isolated 10/100 Mbps Ethernet ports, RJ45, Auto MDI / MDIX Ethernet ports
  • RS-232/485 port
  • Real time clock
  • Hardware and software watchdog
  • Serial protocols: ModbusTCP / RTU, Transparent TCP Connection, Virtual COM port
  • Network protocols: ICMP, IP, TCP, UDP, DHCP, PPP, ARP, Telnet, DNS, SSH, VRRP, HTTP, HTTPS, NTP, SMTP
  • Networking functions: routing, connection testing, NAT, PAT, virtual IP address mapping, DDNS (DynDNS), VRRP
  • Security: IPsec, OpenVPN, GRE, PPTP, L2TP, authentication (password, certificate), firewall, access control (rules for TCP and UDP protocols and ICMP packets), MAC address filtering, port forwarding, demilitarized zone (DMZ)
  • Metal housing, IP30 protection class
  • DIN rail mounting, detachable terminal strips
  • 12 – 24 VDC power supply

Welotec TK500