SSV Embedded Systems IGW/936-L First Steps

LTE Router

IGW/9

36-

L

with

eSOM/3517

First Steps

SSV Embedded Systems

Dünenweg 5
D-30419 Hannover
Phone: [phone]
Fax: [phone]
Email: [e-mail]

Document Revision: 1.4

Date: 2018-08-29

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CONTENT

1 INTRODUCTION ............................................................................................................... 3

1.1 Checklist ................................................................................................................................. 3

1.2 Conventions ........................................................................................................................... 3

2 SAFETY GUIDELINES ..................................................................................................... 4

3 REQUIRED EQUIPMENT ................................................................................................. 5

4 SIM CARD ......................................................................................................................... 6

5 CONNECTIONS ................................................................................................................ 7

5.1 LTE Antenna ........................................................................................................................... 7

5.2 Ethernet Link .......................................................................................................................... 8

5.3 Serial Ports COM2 and COM3 ................................................................................................ 9

5.4 Power Supply ....................................................................................................................... 10

6 OPERATION ................................................................................................................... 11

6.1 Booting the IGW/936-L ........................................................................................................ 11

6.2 Accessing the SSV/WebUI .................................................................................................... 11

6.3 Accessing the SSV/WebUI with DHCP enabled ................................................................... 12

6.4 LTE Modem Configuration ................................................................................................... 14

6.5 WAN Configuration .............................................................................................................. 15

6.6 Firewall Configuration ......................................................................................................... 16

6.7 LAN1 Configuration .............................................................................................................. 17

6.8 LAN2 Configuration .............................................................................................................. 18

6.9 Access via Telnet .................................................................................................................. 19

6.10 Access via FTP ...................................................................................................................... 20

7 TECHNICAL DATA ......................................................................................................... 22

8 PINOUT SCREW TERMINALS ....................................................................................... 22

9 LED FUNCTIONS ........................................................................................................... 23

10 TROUBLE SHOOTING IP ADDRESS PROBLEMS ....................................................... 24

11 HELPFUL LITERATURE ................................................................................................ 25

CONTACT ............................................................................................................................. 25

DOCUMENT HISTORY ......................................................................................................... 25

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1 INTRODUCTION

This documentation gives you an overview about the initial operation and the first steps of
use with the LTE Router IGW/936-L.

1.1 Checklist

Compare the content of your IGW/936-L start-up package with the checklist below.

If any item is missing or appears to be damaged, please contact SSV!

 LTE Router IGW/936-L

 1x LTE antenna

 Adapter cable with power and RS232 connector

 Plug-in power supply

 Screwdriver

 Documentation

 CD-ROM for eSOM/3517

IMPORTANT!
You will need further equipment to operate the IGW/936-L! Please refer to chap-
ter 3.

1.2 Conventions

Convention

Usage

bold Important

terms

monospace

Filenames,

Pathnames, program code, command lines

Table 1: Conventions used in this document

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2 SAFETY GUIDELINES

Please read the following safety guidelines carefully! In case of property or personal
damage by not paying attention to this manual and/or by incorrect handling, we do not
assume liability. In such cases any warranty claim expires.

• The power supply should be in immediate proximity to the device.

• The power supply must provide a stable output voltage between 11 – 28 VDC. The out-

put power should be at least 2.5 W.

• Please pay attention that the power cord or other cables are not squeezed or damaged
in any way when you set up the device.

• Do NOT turn on the power supply while connecting any cables, especially the power
cables. This could cause damaged device components! First connect the cables and
THEN turn the power supply on.

• The installation of the device should be done only by qualified personnel.

• Discharge yourself electrostatic before you work with the device, e.g. by touching a

heater of metal, to avoid damages.

• Stay grounded while working with the device to avoid damage through electrostatic
discharge.

• The case of the device should be opened only by qualified personnel.

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3 REQUIRED EQUIPMENT

To operate the IGW/936-L the following hardware is required:

• a valid SIM card with an appropriate mobile tariff. Please refer to chapter 4 to see how
the SIM card is inserted.

• one Ethernet cross-over cable or two Ethernet patch cables and a switch.

To configure the IGW/936-L a PC with the following features is required:

• Windows 7 or higher

• Web browser (e.g. Firefox, Chrome)

• Telnet/SSH client (e.g. TeraTerm)

• FTP client (e.g. FileZilla)

• 10/100 Mbps Ethernet network controller and TCP/IP configuration

• CD-ROM drive

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4 SIM CARD

The internal SIM card of the IGW/936-L can be changed through the slot on the backside.

To insert the SIM card just push it by hand as deep as possible into the slot.

Please note:

Pay attention to the correct orientation of the SIM card like shown in fig. 1!

Then use a screw driver to push it gently further into the slot until you here a soft "click".

Figure 1: Inserting the SIM card

To remove the SIM card just push it gently with a screw driver until you hear a soft "click"
(see fig. 2). The SIM card is ejected a few millimeters and can be pulled out easily by hand.

Figure 2: Removing the SIM card

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5 CONNECTIONS

For a quick and easy start with the IGW/936-L there are a few cable connections necessary.

The following chapters describe how these connections have to be made.

5.1 LTE Antenna

Connect the LTE antenna with the IGW/936-L like shown in fig. 3 and place it where the LTE
signal strength is high.

Figure 3: Connecting the LTE antenna

Please note:

The best LTE signal strength is achieved by using two antennas. Please contact SSV if
you want to order a second LTE antenna.

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5.2 Ethernet Link

The Ethernet link between the PC and LAN1 of the IGW/936-L can be made on two ways:

• Direct with an Ethernet cross-over cable like shown in fig. 4.

• With two standard Ethernet patch cables over a hub or switch like shown in fig. 5.

Figure 4: Ethernet link with cross-over cable

Please note:
For the Ethernet connection in fig. 4 it is absolutely required to use a cross-over ca­ble. Do not use an ordinary patch cable. Ethernet patch and cross-over cables are in

most cases visual indistinguishable. But the internal wiring is fully different. Mixing
up these types of cables leads to LAN errors. Hence pay attention to the label of the
cable or packing.

Figure 5: Ethernet link with hub or switch

The IP address of the LAN1 interface is ex-factory set to 192.168.0.126.

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5.3 Serial Ports COM2 and COM3

You can create an RS485 serial link on port COM2 and COM3 of the IGW/936-L.

An RS232 serial link is only possible on port COM3.

Figure 6: Serial links on COM2 and COM3

Terminal

Signal

A1 COM

2 RS485 Serial Port RX /TX+

A2 COM2

RS485 Serial Port RX /TX

-

B4

Signal

Ground

Table 2: Screw terminals COM2

Terminal

Signal

B2

COM3

Serial Port: TXD (RS232), RX/TX

- (RS485)

B3 COM3

Serial Port: RXD (RS232), RX/TX+ (RS485)

B4 Signal Ground

Table 3: Screw terminals COM3

Please note:

The RS485 (officially called TIA/EIA-485-A) connection between your IGW/936-L and
the field devices needs termination resistors on both ends for proper operation. The
IGW/936-L does not offer internal termination resistors. Please make sure, that the
RS485 cable connection is equipped with external terminatio n resistors.

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5.4 Power Supply

The IGW/936-L needs a supply voltage of 11 – 28 VDC to work.

Connect the cables of an appropriate power supply to provide the system with the neces­sary power like shown in fig. 7.

Figure 7: Power supply for the IGW/936-L

Terminal

Signal

A3 Vin (11 .. 28 VDC)

A4 GNDin

Table 4: Screw terminal power

CAUTION!

Providing the IGW/936-L with a higher voltage than the regular 11 – 28 VDC could cause
damaged device components!

Do NOT turn on the power supply while connecting it with the IGW/936-L. This could cause
damaged device components! First connect the power supply and THEN turn it on.

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6 OPERATION

6.1 Booting the IGW/936-L

Just power up the IGW/936-L and the boot process starts immediately. The IGW/936-L
boots thereby an embedded Linux out of its Flash memory. This may take up to one mi­nute.

6.2 Accessing the SSV/WebUI

To open the login page of the SSV/WebUI enter the ex-factory IP address and port number
of LAN1 of the IGW/936-L manually in a web browser:

http://192.168.0.126:7777

Enter the username admin and the password ssvadmin and click on [Login].

Figure 8: Login page of the SSV Web WebConfig

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6.3 Accessing the SSV/WebUI with DHCP enabled

If the automatic IP address configuration of LAN1 via DHCP is enabled, you have to check
the assigned IP address, which is necessary to access the IGW/936-L via a Telnet client or a
web browser.

Therefore open in Windows Control Panel > Network and Internet > View network com-

puters and devices. The IGW/936-L should show up in this list.

Figure 9: Selecting the IGW/936-L

Just right-click on the IGW/936-L to open the properties dialog, where you can see the cur­rent IP address of the IGW/936-L like shown in fig. 10.

A double-click on the IGW/936-L opens the SSV/WebUI in a web browser.

Please note:

To access the SSV/WebUI, it is important to add the port number 7777 to the cur­rent IP address of the IGW/936-L, e.g.: http://192.168.0.126:7777!

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Figure 10: The properties dialog shows the current IP address

Now you are able to access the IGW/936-L via a Telnet client or a web browser.

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6.4 LTE Modem Configuration

To configure the modem settings choose from the menu Network > Mobile.

Figure 11: Mobile network settings

1. In the section Modem configuration enable the checkbox.

2. In the section ISP settings choose your provider.

3. Enter the PIN of the SIM card.

4. In the section Connection settings choose On System start.

5. Click on [Apply].

In the section DNS configuration you can enter a DNS server if needed.

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6.5 WAN Configuration

To use the IGW/936-L as an LTE router the WAN (Wide Area Network) settings need to be
configured.

Choose from the menu Network > WAN.

Figure 12: WAN settings

1. In the section WAN configuration choose Mobile.

2. In the section Internet click on [Check] to test the Internet connection.

3. Click on [Apply].

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6.6 Firewall Configuration

Choose from the menu Services > Firewall and NAT.

Figure 13: Firewall and NAT settings

1. In the section Firewall configuration enable the checkbox.

2. In the section Forwarding with IP-Masquerading and NAT enable the checkbox.

3. Click on [Apply].

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6.7 LAN1 Configuration

The IP address of the LAN1 interface is ex-factory set to 192.168.0.126.

To configure the LAN1settings choose from the menu Network > LAN1.

Figure 14: LAN1 settings

To enable the automatic IP address assignment via DHCP follow these steps:

1. In the section IP address configuration enable the radio button automatically.

2. Click on [Apply].

Please note:

After DHCP was enabled, it is necessary to re-log into the SSV/WebUI with the new
assigned IP address of LAN1. Please refer to chapter 6.3 to find out the current IP
address.

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6.8 LAN2 Configuration

The LAN2 interface is ex-factory disabled.

To enable LAN2 choose from the menu Network > LAN2.

Figure 15: LAN2 settings

1. In the section Network configuration for LAN2 enable the checkbox. The IP address is

preset to 192.168.10.126.

2. Click on [Apply].

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6.9 Access via Telnet

To access the IGW/936-L via Telnet please open a Telnet client program (like TeraTerm) on
your host PC and enter the current IP address* of the IGW/936-L to activate a Telnet ses­sion.

In the upcoming Telnet window you can login with the username root and the password
root.

Now you can enter any Linux commands, which will be executed by the IGW/936-L operat­ing system.

Figure 16: Access via Telnet client

*Please note:

The ex-factory IP address of the LAN1 interface is 192.168.0.126. If DHCP is ena­bled, please refer to chapter 6.3 to find out the current IP address.

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6.10 Access via FTP

The IGW/936-L comes with a pre-installed FTP server, which allows the file transfer via
Ethernet between a PC and the IGW/936-L. To access the IGW/936-L via FTP use an FTP cli­ent like e.g. FileZilla.

Figure 17: FileZilla as FTP client to access the FTP server

Use for the FTP login the current IP address* of the IGW/936-L, the username root and the
password root. With this login you have FTP read/write permission in the file system.

The default setting of the root file system after the boot process is read-only. There are on­ly three exceptions, which are shown in table 5:

Directory

Remark

/flash

R/W directory, non

-

volatile memory within Flash

/home/root

R/W directory, RAM disk, volatile memory

/var/volatile

R/W directory,

RAM disk, volatile memory

Table 5: R/W directories in the file system

The read-only restriction protects all files of the file system. Under ordinary operating con­ditions it is not possible to overwrite or delete a file which is necessary for the eSOM/3517
within the IGW/936-L.

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To disable the write protection just login with the username root and the password root
and enter the following command:

mount / -o remount,rw

This command „mounts„ the file system as read/write. All files are now writable and
deletable. Please pay attention not to damage important system files! With the command

mount / -o remount,ro

the system is set back to the read-only initial condition after the boot process.

*Please note:

The ex-factory IP address of the LAN1 interface is 192.168.0.126. If DHCP is ena­bled, please refer to chapter 6.3 to find out the current IP address.

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7 TECHNICAL DATA

Supply voltage ................................................................................. 11 – 28 VDC

Weight .................................................................................................... < 0,5 kg

Mechanical Dimensions (LxWxH) ............................. 112 mm x 46 mm x 100 mm

Temperature range ........................................................................... 0° C – 70° C

Rel. air himudity .................................................................................. max. 85%

8 PINOUT SCREW TERMINALS

The table 6 shows the pinout of the screw terminals of the IGW/936-L.

Terminal

Signal

A1 COM

2 Serial Port: RS485 RX/TX+

A2 COM2

Serial Port: RS485 RX/TX

-

A3 Vin (11 .. 28 VDC)

A4 Power Ground

B1 ---

B2 COM3

Serial Port: TXD (RS232), RX/TX

- (RS485)

B3 COM3

Serial Port: RXD (RS232), RX/TX+ (RS485)

B4 Signal Ground

Table 6: Pinout of the screw terminals

Please note:

The RS485 (officially called TIA/EIA-485-A) connection between your IGW/936-L and
the field devices needs termination resistors on both ends for proper operation. The
IGW/936-L does not offer internal termination resistors. Please make sure, that the
RS485 cable connection is equipped with external terminatio n resistors.

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9 LED FUNCTIONS

LED Description

Off Flash

On

Power

No Power

--- Power

On

Wireless

Always Off

--- ---

S1 System

Not ready

Booting

Ready

S2 Modem/

VPN Off Connecting

Ready

Table 1: LED functions

The LED S2 shows the modem state by different flashing provided the modem is used.

After the modem connection is established and VPN is enabled, the LED S2 shows the state
of the VPN connection.

The following table describes the functions of the particular LED signals.

On Time

Off Time

Description

Permanent

--- Modem connected or/and VPN connected

0.9 s 0.1 s Good mobile signal (20 ASU

- 31 ASU)

0.3 s 0.3 s Normal mobile signal quality (13 ASU

- 19 ASU)

0.1 s 0.9 s Bad mobile signal quality (0 ASU

- 12 ASU)

1 s 1 s VPN-client tries connecting the VPN

-

server

2 s 2 s

Modem in init sequence, missin

g antena, unknown sig-

nal

--- Permanent

Unknown state, modem disabled, wrong PIN, VPN dis-

connected

Table 1: LED S2 functions

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10 TROUBLE SHOOTING IP ADDRESS PROBLEMS

If the IP addresses of LAN1 and LAN2 are not configured properly it is possible, that the
SSV/WebUI (the configuration user interface) of the IGW/936-L cannot be accessed any­more.

In that case it is necessary to restore the factory settings of the IGW/936-L. To do so please
follow these steps:

1. Connect the LAN1 interface of the IGW/936-L via a cross-over-cable with the LAN inter-

face of a Windows PC. Disconnect (if present) the cable from the LAN2 interface of the
IGW/936-L. If not already running turn on the IGW/936-L.

2. Make sure that DHCP (IP address is obtained automatically) is enabled within the net-

work settings of the Windows PC for the LAN interface.

3. Take a USB memory stick and format it under Windows with FAT16 or FAT32.

4. Create a new simple text file on the memory stick, name it factoryreset and re-

move the file extension.

Please note:

Keep in mind that Windows hides file extensions by default!

5. At first unmount the memory stick over the USB symbol in the Windows system tray

before removing it from the PC.

6. Now plug the memory stick into the USB port of the (running) IGW/936-L.

7. The IGW/936-L makes a reboot and the LED S1 turns off after 15 to 30 seconds.

8. Remove the memory stick (at the latest when the LED S1 begins to blink).

9. The Windows PC shows the message Network restricted after 30 to 60 seconds.

10. The IGW/936-L answers via UPnP with its new IP address within the AutoIP range of

169.254.x.x. It can now be found as an icon within the Windows network environ­ment. A double click on this icon opens the IGW/936-L’s login page in a browser. The
URL of the login page looks like this: http://169.256.x.x:7777.

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11 HELPFUL LITERATURE

• IGW/936 hardware reference manual

• eSOM/3517 hardware reference manual

CONTACT

SSV Embedded Systems

Dünenweg 5
D-30419 Hannover

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Internet: www.ssv-embedded.de
Forum: www.ssv-comm.de/forum

DOCUMENT HISTORY

Revision

Date Remarks

Name

Review

1.0 2014-05-07 First version WBU ENE

1.1 2015-08-26 Edited chapter 1.1 WBU ENE

1.2 2016-02-03 Edited chapter 6.1 and 6.2, added chapter 6.3 and 6.7 WBU KDW

1.3 2016-06-15 Edited chapter 5.3, added chapter 9 WBU HNE

1.4 2018-08-29 Added chapter 10 WBU HNE

The content of this document can change any time without announcement. There is tak

en over no guaran-

tee for the accuracy of the statements. The user assumes the en

tire risk as to the accuracy and the use of

this document. Information in this docu

ment is provided ‘as is’ without warranty of any kind. Some names

within this document can be trademarks of their respective holders.

© 2018 SSV EMBEDDED SYSTEMS. All rights reserved.