ICX35-HWC Product Photo

Industrial Cellular Gateway


The ICX35-HWC Industrial Cellular Gateway is used for any remote connectivity applications like remote access, SCADA connectivity to remote sites, or M2M communications.

It is the ideal communications solution for system integrators and OEMs that need to monitor devices that are in hard-to-reach spots. With the ICX35-HWC, the user can monitor and troubleshoot devices from anywhere in the world over 4G LTE cellular connections, with fallback to 3G or by using the on-board Ethernet port as a WAN/LAN port.

Ubiquitous and reliable cellular coverage allows the ICX35-HWC to be used to connect geographically dispersed sites for SCADA and telemetry applications.

The ICX35-HWC uses a multi-layered approach (Defense-In-Depth) to security. These include 256-bit AES encryption and one-time-use tunnel credentials, to name a few. It supports SMS for alarm management.

The ICX35-HWC can also be monitored through Belden Horizon™. This is Belden’s IT-secure and OT-friendly cloud-native platform for the Industrial Internet of Things. This service can be accessed anytime, anywhere in the world, offering the user a secure and intuitive Web interface to monitor their automation devices in real time. Learn more about Belden Horizon.

The gateway supports OpenVPN connectivity to dual servers for redundancy.

Check out successful applications with that product monitoring: mining equipment, natural gas usage, electrical equipment, roadway signs, and portable toilets!

On The Go

Belden Horizon Lite App

Download the Belden Horizon Lite App on the App Store.

App Store is a trademark of Apple Inc.


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Features and Benefits

  • Verizon™, AT&T® and PTCRB (global) Certified
  • EtherNet/IP and Modbus TCP/IP support. Your PAC/PLC can easily read diagnostic data from the gateway
  • Integrates with Belden Horizon, Belden’s secure, cloud-native platform for the Industrial Internet of Things
  • IP Whitelisting: Specifies which end device IP addresses can be accessed
  • Ethernet port can be configured as a LAN/WAN port – wired or wireless connection to Belden Horizon
  • Virtual Lockout, Tagout (vLOTO™) when creating secure remote access connection through Belden Horizon
  • Single Sign On (SSO) when creating secure remote access connection through Belden Horizon
  • Port forwarding: 10 entries maximum
  • Supports SMS messaging from your PAC/PLC using EtherNet/IP or Modbus TCP/IP
  • Secure single or dual OpenVPN connections over Internet and cellular links for remote site access to corporate networks
  • Supports NTP client and server functionalities
  • Built-in web server for local/remote configuration, monitoring and wireless network diagnostics




Cellular Technology




Freq: 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



Freq: 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

Verizon Certified


AT&T Certified





SIM Slot


OpenVPN client, IPSec client, IP Address Filtering



Extruded aluminum with DIN clip

(H x W x D)

5.52 x 2.06 x 4.37 in
14.01 x 5.24 x 11.09 cm


IEC 60068-2-27; 20G @ 11ms (Operational)
IEC 60068-2-27; 30G @ 11ms (Non-Operational)


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
Antenna(s) sold separately


14.5 oz (411 g)



Operating Temperature

IEC 60068 -40°F to +158°F (-40°C to +70°C)


IEC 60068-30 5% to 95%, with no condensation

External Power

10 to 30 VDC

Peak Power Consumption

< 6W


ATEX Letter of Conformity 56.07 kB Last Modified 05/12/2022
CB Safety 328.60 kB Last Modified 04/06/2016
Declaration of Conformity (RoHS/CE) 540.51 kB Last Modified 12/18/2020
Declaration of REACH Compliance 340.57 kB Last Modified 02/08/2021
UL/cUL; Class 1, Div 2 404.84 kB Last Modified 04/06/2016
Country Approval - Argentina - Expires Sep 2022 175.02 kB Last Modified 02/27/2024
Country Approval - Australia 111.37 kB Last Modified 12/14/2018
Country Approval - Malaysia - Expires May 2023 286.01 kB Last Modified 02/27/2024
Country Approval - Mexico - No Expiration 698.19 kB Last Modified 02/27/2024
Country Approval - Oman - No Expiration 255.58 kB Last Modified 02/27/2024
Country Approval - Peru - No Expiration 202.89 kB Last Modified 02/27/2024
Country Approval - Singapore - Expires June 2022 36.59 kB Last Modified 02/27/2024
Country Approval - Thailand 3.32 MB Last Modified 02/27/2024
Country Approval - United Arab Emirates - Expires Dec 2023 62.59 kB Last Modified 02/27/2024