Quick Start Guide

Guide to installation and comissioning of the TK804 series. Please ensure that all package contents are present upon delivery. If you need a SIM card, contact your local network operator.

Package Contents

Each TK804L-450 is supplied in a box with standard accessories. Optional accessories can also be ordered. Check the contents of the box. If something is missing, contact Welotec.

Components Router

Product	Amount	Description
TK804L-450	1	TK804 series industrial router
Terminal block	1	Terminal block, 2-pin (m)
Terminals Serial and I/O	1	Terminal block, 5-pin (EX0 / EXW variants only)

Components Set

Product	Amount	Description
TK804L-450	1	TK804 series industrial router
Terminal block	1	Terminal block, 2-pin (m)
Network cable	1	1,5 m
Antenna	2 (4)	3G/4G Antenna Wi-fi Antenna (EXW variant only)
Power supply unit	1	230 V AC to 12 V DC
Terminals Serial and I/O	1	Terminal block, 9-pin (EX0 / EXW variants only)

Information and Control Panel

Control Panel

Dimension Drawings

Installation Guide

Preparations

Prepare the power supply (9 - 36 V DC). Make sure that the device can operate under the specified environmental conditions (working temperature range -25 - +70 °C, humidity: 5 – 95 % relative humidity). The device should not be exposed to direct sunlight and should be installed away from heat sources and environments with strong electromagnetic interference. The router can be mounted on a DIN rail (top-hat rail) or used at a workstation.

Mounting the Device

DIN rail:

Select a position with sufficient space on the DIN rail. Then place the upper part of the DIN rail mount on the DIN rail. Subsequently, press the lower side of the DIN rail mount down until the device is locked in place. This picture serves as an illustration:

For demounting press the device from top to bottom and then pull the lower side of the device from the DIN rail (see figure).

Installing the SIM Card

The TK804L-450 supports dual SIM. To insert the cards, press the yellow “Eject” button with a small screwdriver on the top of the device, for example. The respective SIM card slot is pushed out. If the TK804L-450 is not operated in dual SIM mode, use the SIM card slot “SIM1”.

Then insert the SIM card. The SIM card slot is not hot-pluggable. The router must be restarted after inserting the SIM card.

Antennas Installation

Plug the antennas onto the SMA connectors and turn the external attachment on the antenna cable until the connection is tight.

⚠️ For optimal performance, place the antennas at least 20 cm apart.

Installation of the Power Supply

Remove the terminal block from the top of the router. Loosen the corresponding screws on the terminal block and route the wires to the corresponding terminals. The terminals are marked accordingly on the top of the router. Tighten the screws and then reinsert the connector block into the router. To ground the device, use the grounding screw on the device.

⚠️ To prevent interference due to electromagnetic influence, the housing of the router must be grounded via the grounding screw.

Cable Connections

Connect the router to your PC via a network cable (RJ45).

Connection of the Serial Interfaces and I/O’s

For the connection of the serial interfaces and the I/O’s you will find a terminal block on the front of the device. The individual contacts for this are labeled on the front of the device. Connect the lines according to these labels. The “IN” contact here represents the digital input, while the output is labeled “Relay”. “COM” represents the ground. This is a potential-free contact, i.e. what you put in at the IN contact comes out again at the relay contact, provided the contact is closed. Switching can be done via SMS and via the web interface. At 230 VAC the contact can be loaded with 2 Ampere. During installation, please remove the connection block from the device and connect the individual wires to the corresponding terminals. Then plug the connection block back onto the device.

Startup of the Router

Automatic Configuration (DHCP)

Configure the PC so that it works as a DHCP client (obtain IP address automatically). Connect the PC with a network cable to one of the ethernet interfaces. The PC is then assigned an IP address, standard gateway and DNS server by the router. The following figure shows the configuration process via DHCP on a PC with the Windows 10 operating system. The settings can be accessed via the Network and Sharing Center in Windows 10.

After configuring the IP address of the PC and connecting to the router, open a web browser.

Then enter “http://192.168.2.1” in the address line of your browser (e.g. Google Chrome). After confirming with the “Enter” key, a pop-up appears as the login page of the router. Enter the username and password (note: username and password printed on the device label) and confirm with “Enter”. Now you will be redirected to the configuration web page. Now configure the router according to your requirements.

To check if you are connected to the Internet, select Network > Cellular > Status from the navigation panel. Here you can see the data of the cellular unit in the router. Alternatively, simply open a web page in your browser.

Manual Configuration

Configure your PC so that it is in the same subnet as the router (192.168.2.1). The subnet mask must be 255.255.255.0. The following image shows the process of configuring the IP address on a PC with the Windows 10 operating system.

After configuring the IP address of the PC and connecting to the router, open a web browser.

Then enter “http://192.168.2.1” in the address line of your browser (e.g. Google Chrome). After confirming with the “Enter” key, a pop-up appears as the login page of the router. Enter the username and password (note: username and password printed on the device label) and confirm with “Enter”. Now you will be redirected to the configuration web page. Now configure the router according to your requirements.

To check if you are connected to the Internet, select Network > Cellular > Status from the navigation panel. Here you can see the data of the cellular unit in the router. Alternatively, simply open a web page in your browser.

LED-Indicator Guide for TK804L-450

Power	Status	Mobile	Wide Area Network	Description
(Red)	(Green)	(Green)	(Green)
Off	Off	Off	Off	Turned off
On	Off	Off	Off	System error
On	On	Off	Off	The module or SIM card is not recognized
On	On	Flashing	Flashing	Dial up
On	On	On	On	Dial up successful
On	Flashing	On	On	System upgrade
On	Flashing->On	On	On	Reset

Signal Strength

Signal Level	Description
1–9	Poor reception – The router cannot function properly. Please check the antenna connection and network coverage.
10–19	Normal reception – The router is working properly.
20–31	Perfect reception – Optimal signal strength.

Factory Reset

Hardware Method

1. Turn on the TK804L-450 Router and wait 30 Seconds, then press and hold the Reset button until the STAT LED is steady on.

2. When the STAT LED is steady, wait for 2 seconds and Release the Reset button, the STAT LED will go off.

3. After the STAT LED goes off, press the Reset button again, the STAT LED will blink.

4. Release the Reset button then the device will restore to default settings

Factory default settings
IP:	192.168.2.1
Netmask:	255.255.255.0
Username:	adm
Password:	[check label]
Serial parameter:	115200-N-8-1

Web Method

1. Go to the Config Management submenu via the Administration menu:

2. Click Restore Default Configuration to reset the router to its default settings.
   After a few seconds you will receive the following message. The router has now been successfully reset.

3. After clicking reboot the router reboots to factory defaults.

Watchdog

Self Monitoring of the Router

Internet connection active

Watchdog active

The watchdog monitors the router with regard to the Internet connection. The router itself checks whether there is an Internet connection as required. For this purpose, it sends ICMP packets to an individually defined server (ICMP detection server). If this query fails, the router first automatically restarts the dial-up, then the modem, and if necessary the entire system. The watchdog ensures a reliable Internet connection in the mobile network. This ensures that the router is almost always available.

1. Go via the menu item Network to the submenu item Cellular.

2. Select the Cellular tab

3. Now enter a suitable ICMP Detection Server in the corresponding field and change the ICMP Detection Interval.

Note: The registered ICMP detection server should have a very high accessibility. A server from Google is no longer suitable for this, since the ICMP requests are blocked there.

Port Mapping / Port Forwarding

Access to Connected Devices via the Internet

To access devices connected to the Welotec router via the Internet, port mapping or port forwarding can be used. This is configured in the TK804L-450 router via NAT rules.

⚠️ Port mapping requires a public IP address in the mobile network (Public IP). If necessary, ask your mobile network provider or service provider about this!

The instructions refer to all TK804L-450 routers with firmware Version 1.2.15 or higher.

The following image illustrates the application example (http uses TCP port 80 by default):

Explanation:

Welotec Router
LAN IP address:	192.168.2.1
Subnet mask:	255.255.255.0

IP camera
LAN IP-Adresse:	192.168.2.2
Subnet mask:	255.255.255.0
Standard Gateway	192.168.1.1

The IP camera has an interface that can be reached with a browser via http://192.168.2.2 (note: http protocol has TCP port 80).

Port Mapping Guide

1. Go to Firewall > NAT

   

2. Click Add to create a new NAT rule

   

3. Enter rule details (as shown)

   

4. The rule appears in the list

   

Checklist for functionality:

• Correct IP set on the device?

• Responds to ping?

• Web interface reachable?

• Gateway set to 192.168.2.1?

SMS Functions

The TK804L-450 can be reached by SMS from the outside and reacts to various commands sent by SMS. One has the possibility to query the status of the device, to start / stop the dial-up or to restart the device.

Status Request / Restart

1) Go via the menu item Network to the submenu item *SMS

2) Click the Enable checkbox to turn on the function

3) Enter in the table SMS Access Control the phone numbers (format +49, no 0049 or 49!), which are allowed to send SMS to the router. Enter “permit” as action.

If now an SMS with the content show is sent to the mobile phone number of the router, the router sends its current status as response

Connecting or Disconnecting from the Internet

After successful configuration, you can also control the router’s Internet connection via SMS. However, this requires the router to be set to “Connect On Demand”!

1) Go to the submenu item cellular via the menu item network.

2) Now select the cellular tab

3) Under Connection Mode, select the Connect on Demand mode and activate the Triggered by SMS field.