ProSoft Technology ICX35-HWC User manual

ICX35-HWC
Industrial Cellular Gateway
3G/4G LTE
July 14, 2022
User Manual

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ICX35-HWC User Manual
For Public Use.
July 14, 2022
ProSoft Technology®, is a registered copyright of ProSoft Technology, Inc. All other brand or product
names are or may be trademarks of, and are used to identify products and services of, their respective
owners.
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shipments. User Manuals, Datasheets, Sample Ladder Files, and Configuration Files are provided at our
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Content Disclaimer
This documentation is not intended as a substitute for and is not to be used for determining suitability or
reliability of these products for specific user applications. It is the duty of any such user or integrator to
perform the appropriate and complete risk analysis, evaluation and testing of the products with respect
to the relevant specific application or use thereof. Neither ProSoft Technology nor any of its affiliates or
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or typographical errors. ProSoft Technology makes no warranty or representation as to its accuracy and
assumes no liability for and reserves the right to correct such inaccuracies or errors at any time without
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No part of this document may be reproduced in any form or by any means, electronic or mechanical,
including photocopying, without express written permission of ProSoft Technology. All pertinent state,
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reasons of safety and to help ensure compliance with documented system data, only the manufacturer
should perform repairs to components. When devices are used for applications with technical safety
requirements, the relevant instructions must be followed. Failure to use ProSoft Technology software or
approved software with our hardware products may result in injury, harm, or improper operating results.
Failure to observe this information can result in injury or equipment damage.
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For professional users in the European Union
If you wish to discard electrical and electronic equipment (EEE), please contact your
dealer or supplier for further information.
Warning –Cancer and Reproductive Harm –www.P65Warnings.ca.gov

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Installation Instructions:
THIS EQUIPMENT IS AN OPEN-TYPE DEVICE AND IS MEANT TO BE INSTALLED IN AN
ENCLOSURE SUITABLE FOR THE ENVIRONMENT SUCH THAT THE EQUIPMENT IS ONLY
ACCESSIBLE WITH THE USE OF A TOOL.
SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS A, B, C AND D HAZARDOUS LOCATIONS,
OR NONHAZARDOUS LOCATIONS ONLY.
WARNING –EXPLOSION HAZARD –DO NOT DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS
LIVE OR UNLESS THE AREA IS KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
WARNING –EXPLOSION HAZARD –SUBSTITUTION OF ANY COMPONENT MAY IMPAIR
SUITABILITY FOR CLASS I, DIVISION 2.
INSTRUCTIONS D'INSTALLATION:
CET APPAREIL EST UN DISPOSITIF DE TYPE OUVERT ET EST DESTINÉ A ETRE INSTALLÉ
DANS UN ENVIRONNEMENT ADAPTÉ AFIN QUE L'ÉQUIPEMENT SOIT ACCESSIBLE
UNIQUEMENT AVEC L'UTILISATION D'UN OUTIL.
ADAPTÉ POUR UNE UTILISATION EN CLASSE I, DIVISION 2, GROUPES A, B, C ET ZONES
DANGEREUSES OU NON.
AVERTISSEMENT - RISQUE D'EXPLOSION - NE PAS DÉCONNECTER L’ÉQUIPEMENT LORSQUE
LE CIRCUIT EST EN FONCTIONNEMENT A MOINS QUE LA ZONE SOIT DÉPOURVUE
D’ÉLÉMENTS INFLAMMABLES.
AVERTISSEMENT - RISQUE D'EXPLOSION –LA SUBSTITUTION DE TOUT COMPOSANT PEUT
NUIRE A LA CONFORMITÉ DE LA CLASSE I, DIVISION 2.
Do not operate the ProSoft Technology Wireless products in areas where blasting is in progress, where
explosive atmospheres may be present, near medical equipment, near life support equipment, or any
equipment which may be susceptible to any form of radio interference. In such areas, the ProSoft
Technology Wireless products MUST BE POWERED OFF. The ProSoft Technology Wireless products
can transmit signals that could interfere with this equipment.
Do not operate the ProSoft Technology Wireless products in any aircraft, whether the aircraft is on the
ground or in flight. In aircraft, the ProSoft Technology Wireless products MUST BE POWERED OFF.
When operating, the ProSoft Technology Wireless products can transmit signals that could interfere with
various onboard systems.
Note: Some airlines may permit the use of cellular phones while the aircraft is on the ground and the
door is open. The ICX35-HWC may be used at this time.
The driver or operator of any vehicle should not operate the ProSoft Technology Wireless products while
in control of a vehicle. Doing so will detract from the driver or operator's control and operation of that
vehicle. In some states and provinces, operating such communications devices while in control of a
vehicle is an offense.
Agency Approvals and Certifications
Please visit our website: www.prosoft-technology.com

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Contents
Your Feedback Please..........................................................................................................2
Content Disclaimer................................................................................................................2
1Start Here 7
1.1 About the ICX35-HWC Industrial Cellular Gateway ....................................7
1.1.1 Specifications...............................................................................................8
1.2 Package Contents .......................................................................................8
1.3 Jumpers.......................................................................................................9
1.4 Reset (Power Cycle) Button ........................................................................9
1.5 Power Requirements .................................................................................10
2Connecting to the ICX35-HWC 12
2.1 Configuration Webpage Setup...................................................................12
2.2 Assigning a LAN IP Address......................................................................14
2.3 Connecting to Your Cellular Provider ........................................................17
2.3.1 Connection Using GSM/GPRS..................................................................17
2.3.2 Connection Using CDMA...........................................................................18
2.3.3 SIM Card Security......................................................................................19
2.3.4 SIM Card PIN Verification..........................................................................19
2.3.5 Unblocking a SIM Card..............................................................................21
2.4 Connecting to the Internet Using the ICX35-HWC....................................24
3ICX35-HWC Webpage 25
3.1 Status Tab..................................................................................................25
3.2 Configuration Tab ......................................................................................27
3.2.1 Basic..........................................................................................................27
3.2.2 Advanced...................................................................................................28
3.2.3 Firewall.......................................................................................................53
3.3 Administrator Tab ......................................................................................55
3.3.1 System.......................................................................................................55
3.3.2 Access Control...........................................................................................56
3.3.3 Logs ...........................................................................................................61
3.3.4 SMS...........................................................................................................62
3.3.5 Ping............................................................................................................64
3.3.6 License.......................................................................................................64
4Belden Horizon 65
4.1 Activation ...................................................................................................65
5Hardware Installation 67
5.1 Antenna Installation ...................................................................................67
5.2 Connecting the Radio to a Network Device...............................................68
5.2.1 Ethernet Cable Specifications....................................................................69
5.2.2 Serial Port Basics ......................................................................................70
5.3 LED Indicators ...........................................................................................71
6EtherNet/IP and SMS Text Messaging 73
6.1 Creating a New RSLogix 5000 Project......................................................74
6.1.1 EDS Installation .........................................................................................75

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6.1.2 Adding Ethernet Connectivity to the Project..............................................75
6.1.3 Ethernet Bridge Network Setup.................................................................77
6.2 Importing the AOI.......................................................................................79
6.3 EtherNet/IP and SMS Text Message Features .........................................82
6.3.1 ICX35-HWC Diagnostic Data Retrieval .....................................................82
6.3.2 ICX35-HWC Diagnostic Counter Reset.....................................................84
6.3.3 Sending SMS Text Messages from the ICX35-HWC................................85
6.3.4 Retrieving SMS Text Messages from the ICX35-HWC.............................87
6.3.5 Clearing SMS Text Messages from the ICX35-HWC................................88
6.3.6 Rebooting the ICX35-HWC........................................................................89
7Modbus TCP/IP Communications 90
7.1 ICX35-HWC Diagnostic Data Retrieval .....................................................90
7.2 ICX35-HWC Diagnostic Counter Reset.....................................................91
7.3 Sending SMS Text Messages to the ICX35-HWC ....................................91
7.4 Retrieving SMS Text Messages from the ICX35-HWC.............................92
7.5 Additional Features....................................................................................92
8Watchdog 93
8.1 Watchdog Scenarios..................................................................................94
8.2 Watchdog Configuration From Export File ................................................98
8.3 Watchdog Configuration on ICX35-HWC Webpage................................100
9Firmware Procedures 101
9.1 Gateway Firmware Install........................................................................102
9.2 Radio Firmware Install.............................................................................103
9.2.1 Verizon Support.......................................................................................104
10 ICX35-HWC Tech Notes 105
10.1 Pass Through Mode (End Device to End Device) Example....................106
10.1.1 ICX35-HWC Configuration Parameters...................................................107
10.1.2 Enable Pass Through ..............................................................................108
10.1.3 End Device Parameter Notes..................................................................108
10.1.4 Obtaining Data from the End Device.......................................................108
10.2 Pass Through and OpenVPN Example...................................................109
10.2.1 ICX35-1 Configuration Parameters..........................................................110
10.2.2 Enable Pass Through ..............................................................................111
10.2.3 Configuring End Device 1........................................................................111
10.2.4 Configuring End Device 2........................................................................111
10.2.5 Configuring OpenVPN Parameters..........................................................112
10.3 OpenVPN with DHCP Enabled Example.................................................113
10.3.1 ICX35-1 Configuration .............................................................................114
10.3.2 ICX35-2 Configuration .............................................................................115
10.3.3 End Device Configuration........................................................................115
10.4 OpenVPN with Username and Password Authentication........................116
10.4.1 Configuring the Username/Password as the Only Method of
Authentication...............................................................................................................116
10.4.2 Configuring the Username and Password with Certificates ....................117
10.5 Connecting to Multiple OpenVPN Servers ..............................................118
10.5.1 Troubleshooting Multiple OpenVPN Servers...........................................119

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11 Cellular Technology Definitions 120
12 Appendix A –Belden Horizon Remote Packet Capture 122
13 Proxy ARP 124
13.1 Proxy ARP Sample Topology..................................................................124
13.2 Configuring Proxy ARP in ICX35-HWC...................................................125
13.3 Proxy ARP Status Check.........................................................................126
14 Support, Service & Warranty 127
14.1 Contacting Technical Support..................................................................127
14.2 Warranty Information ...............................................................................127

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1 Start Here
1.1 About the ICX35-HWC Industrial Cellular Gateway
The ICX35-HWC Industrial Cellular Gateway provides secure wireless Ethernet and
serial connectivity to remote devices over 4G LTE cellular services with fallback to
3G. These devices include PAC/PLCs, RTUs, DCS systems, instruments, electronic
billboards and communication towers.
The ICX35-HWC is ideal for programming and maintenance of remote equipment,
remote data collection, SCADA, and machine-to-machine (M2M) applications. It
operates on LTE/GSM and CDMA networks with a single device
The ICX35-HWC supports:
4G LTE with GSM and CDMA cellular technologies
Cellular networks worldwide
Secure VPN connections over internet and cellular links for remote site
access to corporate networks (VPN Client Mode)
Simultaneous Ethernet and serial data port (Modbus & DF1 encapsulation)
communications providing SCADA migration path to cellular for serial and
Ethernet devices.
Built-in web server for local/remote configuration, monitoring, and wireless
network diagnostics.

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1.1.1 Specifications
Cellular Modem
Specification
Description
Cellular Technology
LTE, GSM, UMTS/HSPA+, GPRS, EDGE, CDMA
Frequency/Bands
ICX35-HWC-A:
Frequency: 700 / 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 MHz
HSPA and HSPA+ Bands: 1,2,4,5,8
LTE Bands: 2,4,5,13,17,25
Quad-band EDGE/GPRS/GSM
CDMA/EVDO Bands: BC0, BC1, BC10
ICX35-HWC-E:
Frequency: 800 / 850 / 900 / 1800 / 1900 / 2100 / 2600 MHz
HSPA and HSPA+ Bands: 1,2,5,8
LTE Bands: 1,3,7,8,20
Quad-band EDGE/GPRS/GSM
Max Downlink Speeds
Up to 100 Mbps maximum (network dependent)
Max Uplink Speeds
Up to 50 Mbps maximum (network dependent)
Activation
SIM Slot
Security
OpenVPN client, IPSec client, IP Address Filtering
Physical
Specification
Description
Enclosure
Extruded aluminum with DIN clip
Dimensions (H x W x D)
5.52 x 2.06 x 4.37 in, 14.01 x 5.24 x 11.09 cm
Shock
IEC 60068-2-27; 20G @ 11ms (Operational)
IEC 60068-2-27; 30G @ 11ms (Non-Operational)
Vibration
IEC 60068-2-6; 10G, 10 to 150 Hz
Ethernet Port
(1) 10/100 Base-T, RJ45 connector
Serial Port
(1) DB9 female (serial tunneling & encapsulation)
Antenna Ports
(2) Female RP-SMA connector. Antennas sold separately
Weight
14.5 oz (411 g)
Enclosure
Extruded aluminum with DIN clip
Environmental
Specification
Description
Operating Temperature
IEC 60068 -40°F to +158°F (-40°C to +70°C)
Humidity
IEC 60068-30 5% to 95%, with no condensation
External Power
10 to 30 VDC
Peak Power Consumption
< 6W
1.2 Package Contents
The following components are included with the ICX35-HWC and are required for
installation and configuration.
Important: Before beginning the installation, please verify all of the following items are present.
Qty.
Part Name
Part Number
Part Description
1
ICX35-HWC Cellular Gateway
ICX35-HWC
3G/4G LTE
1
2-pin Power Connector
002-0116
Power Connector
1
Connector Lever
357-0061
Wire installation tool
1
Jumper for rear pins
357-1517
Two-pin jumper
If any of these components are missing, please contact ProSoft Technology Support
for replacement parts.

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1.3 Jumpers
The three jumpers on the back of the unit are described from top to bottom:
Jumper Position
Description
(Not visible) Factory Use Only
Temporarily sets the LAN IP address to 192.168.0.250.
The jumper should be kept on until the unit boots and becomes accessible. It
remains at this address as long as the jumper is in place, regardless of the
LAN IP address configured on the web server.
The ICX35-HWC reverts to the configured server address once the jumper is
removed.
Resets the ICX35-HWC to factory defaults.
The jumper should be kept until all the LEDs start to slowly blink. At this point,
the jumper should be removed and the unit should be power cycled. After
doing so, the front panel LEDs blink continuously, but the unit will not operate
any further. Remove this jumper and power cycle the device to restore normal
operations with factory defaults.
The custom username/password will also be reset to the defaults values.
1.4 Reset (Power Cycle) Button
The reset button is located at the bottom of the front panel of the ICX35-HWC.

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1.5 Power Requirements
The ICX35-HWC accepts voltages between 10 and 30 VDC, with an average power
draw of 3 watts or less.
A detachable power connector comes with the radio, as shown below. The connector
terminals are labeled + (positive DC connection) and - (DC ground connection).
Important: When wiring the power connector supplied with the radio, be sure to observe the proper
polarity markings on the power connector. Wiring the connector incorrectly can cause serious damage
to the radio which will not be covered under the ProSoft warranty.
The Power Connector (ProSoft part number 002-0116) is shown on the left. Note the
+ and –polarity markings. The connector lever (ProSoft part number 357-0061)
shown on the right is helpful for installing wires into the spring-loaded contacts inside
power connector.
Note: The onsite chassis/earth connection derived from the AC side of the main system power supply
should not be connected to either negative or any other power terminal of ICX35-HWC.

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To use the connector lever, insert it into the connector as shown:
Press down on the installation tool to use it as a lever to open the connector’s
contacts to insert a wire. A properly-wired power connector is shown:

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2 Connecting to the ICX35-HWC
The configuration webpage is used to configure and manage the ICX35-HWC. First-
time setup must be performed over a wired network, where provider-specific cellular
configuration details are configured. Once initially set up, you can access the
webserver over the LAN and cellular networks (unless LAN access is disabled).
Key benefits of the web-based configurator include:
Login and device parameter configuration
Network setting adjustments
Security setting maintenance
Event reporting update
Firmware installs
2.1 Configuration Webpage Setup
1 Insert the SIM card (size 2FF, Mini-SIM) on the front of the module.
2 Ensure that the module is connected to the network.
3 Apply power to the module.
4 Log into the ICX35-HWC configuration webpage. The default IP address of the
ICX35-HWC is 192.168.0.250. If your PC is on a different subnet, temporarily set
the IP address of your PC to 192.168.0.xxx with a subnet of 255.255.255.0.
5 Open a web browser and enter the ICX35-HWC default address of:
http://192.168.0.250.
Note: ProSoft Discovery Service can also be used set a temporary IP address. PDS is a free
software utility used to allow your PC to find a ProSoft Technology Ethernet-based product on a
local network. It allows you to change its default IP address without being on the same subnet. It
can be downloaded from: www.prosoft-technology.com.
6 Once the ICX35-HWC homepage opens, enter the username and password to
log in. The default username is ‘admin’ and the default password is ‘password’.

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Note: For the initial or default ICX35-HWC login, after the default username and password are
used, the user will be prompted to change the password.
The new password must comply with the following rules:
1. Password field must have between 8-40 characters.
2. Password must contain characters from three of the following four categories:
* Uppercase characters
* Lowercase characters
* Base 10 digits (0 through 9)
* Non-alphanumeric characters: .~`!@#$%^*()-+={}:?_
After successful login with the new password, further password changes can only be done from the
Administrator > Access Control webpage.
7 After successful login, the homepage displays data from the Status tab.

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8 After 5 consecutive failed login attempts, you will not be allowed to login for next
10 minutes. The details and status are logged in syslog and
/psft/loginRecords.txt. The last 100 login attempts are logged.
2.2 Assigning a LAN IP Address
1 Select the Configuration tab and select the Basic option.
2 Enter a name for the module in the Module Name field.
3 Enter the APN (Access Point Name). This information is provided by your cellular
provider.
4 Internet Access via LAN is also possible. Enable this parameter and then click
APPLY. You will be asked to enter a gateway and 2 DNS servers.
Note: WAN interface is disabled when LAN is enabled.

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5 Enter the IP Address and Subnet Mask of the ICX35-HWC.
6 Choose whether or not to use DHCP (Dynamic Host Configuration Protocol) for
end devices.
a) If YES, enable the DHCP SERVER option and select a DHCP Range of IP
addresses applicable to multiple end devices.
• DHCP Range –This allows you to enter a range of IP addresses that can
be addressed. For example, if you have a number of devices connected to a
remote ICX35-HWC, you can enter the DHCP range to use on devices
connected to the remote ICX35-HWC.
• Lease Time –Enter the desired lease time using seconds, minutes, or
hours.

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b) For each End Device, set the laptop’s TCP/IPv4 properties (Found at Control
Panel > Network and Internet >Network Connections) as follows:
c) If NO, disable the DHCP Server option.
d) On the laptop, set the TCP/IPv4 properties. Non-PC devices, such PLC’s, do
not require the Preferred DNS Server entry.
7 In the ICX35-HWC configuration webpage, click APPLY. The page automatically
redirects to the new IP address if the IP address is changed.
8 Reset your PC back to its original IP address. This IP address should be on the
same subnet as the ICX35-HWC.
9 Close your browser and open a new session. Enter the new IP address of the
ICX35-HWC to access the configuration webpage (192.168.0.250).

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2.3 Connecting to Your Cellular Provider
The ICX35-HWC supports 3G GSM/GPRS and 4G LTE (where applicable) networks.
It uses your cellular provider as an ISP (Internet Service Provider) to connect to the
Internet. All cellular service connections require a Subscriber Identity Module (SIM) to
be installed in the ICX35-HWC. This includes connections to CDMA based services
like Verizon (previously did not require a SIM). Contact your service provider to
obtain a SIM.
2.3.1 Connection Using GSM/GPRS
The Subscriber Identity Module (SIM) in the ICX35-HWC is a smartcard that securely
stores the key identifying a cellular subscriber. Generally, you will only need to install
a SIM once in the life of the cellular gateway - and it may be pre-installed by your
ProSoft Technology Representative.
Important: Your cellular provider must provide the Public APN and IP address of the SIM card.
AT&T Users: For SMS texting functionality, you must power up the ICX35-HWC with
the SIM installed within 72 hours after AT&T activates the SIM card.
The SIM card slot is located on the front of the cellular gateway.
1 Remove the SIM Card Slot cover by removing the two screws holding it into
place.
2 Insert the SIM card (size 2FF, Mini-SIM) into the ICX35-HWC and cycle
power. The SIM card is read by the ICX35-HWC upon boot up.
3 Re-attach the SIM Card Slot cover.

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4 Enter the APN (Access Point Name) in the Configuration > Basic section of
the UI. The APN is provided by your cellular provider.
5 After the ICX35-HWC reboots, it establishes a link to your cellular provider
network, also called registering on the network, and then receives an IP
address.
6 When the ICX35-HWC receives its IP address from the cellular provider, a
connection to the Internet or the cellular network is also available for
computers or other devices to connect directly to the ICX35-HWC.
7 The GSM network information is now displayed on the Status webpage.
2.3.2 Connection Using CDMA
1 When the ICX35-HWC is powered on, it automatically searches for cellular
service using CDMA-based cellular technology.
2 The ICX35-HWC establishes a PPP (Point-to-Point Protocol or "dial" up
connection) link to the cellular network, also called registering on the network,
and receives an IP address.
3 When the ICX35-HWC has received its IP address from the cellular provider,
a connection to the Internet or the cellular network is also available for
computers or other devices to connect directly to the ICX35-HWC.
4 The CDMA network information is now displayed on the Status webpage.

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2.3.3 SIM Card Security
To protect a SIM card from others using it for phone calls or cellular data, a SIM PIN
can be used. When a SIM PIN is used, the SIM card will automatically lock upon an
ICX35-HWC reboot. The PIN protection enablement, PIN (Personal identification
number), and PUK (PIN unlock key) codes are saved on the SIM card. Replacing the
SIM card requires a reconfiguration of the SIM settings.
Most mobile devices offer SIM PIN protection. At startup, if the PIN security function
is active, the user must enter a 4 to 8 digit PIN to enable the ICX35-HWC’s non-
emergency functions. You can save the PIN code in the configuration in an encrypted
format.
2.3.4 SIM Card PIN Verification
The SIM Card PIN Verification enables the ICX35-HWC’s non-emergency functions.
By default, this feature is not enabled. The following steps show how to enable (and
disable) this feature:
1 On the ICX35-HWC webpage, navigate to the Configuration > Basic
webpage.
2 Under SIM Settings, click on the PIN Verification setting and select ENABLE.

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3 Enter a 4 to 8 digit PIN Code. You can display the digits by clicking the Show
Characters box.
4 You can save the PIN code in the configuration in an encrypted format by
clicking the Save PIN box.
5 When ready, click the APPLY button to apply the changes.
6 When successful, the following message displays:
7 To disable this feature, select DISABLE from step 2 above and continue
through the steps.
Important: If the wrong PIN Code is entered and submitted more than three times, the SIM card
becomes blocked. (Notice the number of Remaining tries in the top right corner of the SIM Settings
area). The SIM card can be unblocked by entering a PUK code, provided by the service provider
(Example: AT&T). The next section discusses the unblocking process.
When the SIM card is blocked, you will not be able to access the ICX35-HWC configuration
webpage via the WAN connection. You can connect via the LAN (Ethernet) port until the SIM card
is unblocked.