Table of Contents
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Quick Start Guide
REX 100 Router
Order numbers: 700-875-WAN01
700-875-LTE01 | 700-875-LTE11
700-875-LTE51 | 700-875-LTE61
700-875-WIF01 | 700-875-WIF51
from firmware V 2.0.8
Helmholz GmbH & Co. KG | Hannberger Weg 2 | 91091 Großenseebach | Germany
Phone +49 9135 7380-0 | Fax +49 9135 7380-110 | info@helmholz.de | www.helmholz.de
Version
9
en
16.04.2021
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Table of Contents
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Summarization of Contents
Safety Instructions
Target Audience
Intended for trained personnel in control and automation engineering.
Intended Use
Device must be installed in an electrical operating room or control box/cabinet for protection.
Operation
Safe operation requires proper transport, storage, setup, assembly, installation, commissioning, and maintenance.
Security
Device is a network infrastructure component; observe security recommendations.
Information Note
Explains initial commissioning and where to find latest versions and manuals.
Prepare and Connect the REX 100 Router
Power Supply Requirements
REX 100 must be supplied with 24 V DC via the supplied connector.
Terminals and Interfaces
Description of connectors for rigid copper wires and RJ-45 network sockets.
Installation Position and Clearances
Designed for DIN rails, intended for switch cabinets; minimum clearances recommended.
Digital Inputs and Outputs (IO1/IO2)
Bidirectional connections IO 1 and IO2 can be configured as digital inputs or outputs.
REX 100 WAN Connection
Connect the WAN interface to the higher-level network/router; 4 LAN ports available.
Antenna Connection
Connect antennas to ensure modems receive a permanent radio signal.
REX 100 WiFi Antenna Setup
WLAN radio module works in 2.4 GHz range, requires connection via access point.
REX 100 LTE Antenna Setup
Suitable antenna must be screwed onto SMA socket 'MAIN' for radio reception.
REX 100 LTE/WiFi with WAN Failover
Failover can be parameterized; connect WAN interface to network/router for automatic switching.
Router Boot Process
PWR LED indicates power, RDY LED indicates boot process start and readiness.
Access to the myREX24 V2 Portal
User Registration Process
Register at www.myREX24.net if you do not have an account or user access.
Logging In to the Portal Server
Install shDIALUP, select server, and log in with your access data.
Portal Navigation and Views
User guided through tutorial; switch between simple and extended views.
Initial Router Configuration via myREX24 V2 Portal
Creating a New Project
Project is the highest level for tasks like device administration and remote maintenance.
Creating a New Device
Router can be added to the tree structure using a plus symbol or right-click.
Configuring Connection Data
Minimal configuration involves three steps: device type, network settings, and transfer.
Device Selection and Naming
Select correct device type and assign a unique, freely selectable name to the router.
Network Settings
Define network configuration for LAN, WAN, LTE cellular, or WiFi settings.
Portal Coupling and Configuration Transfer
Basic settings stored in portal account, then transferred to the device via USB stick.
Router Configuration Transfer Options
Transferring Configuration via USB Flash Drive
Download configuration file, save to USB, and transfer to REX 100.
Synchronizing Configuration Changes
Transfer subsequent changes at any time with 'Synchronize' if portal connection exists.
Tips and Tricks
Checking Device Status
Device status website shows connection and active configuration data.
VPN Port and China Gateway Settings
Default VPN connection via port 1194 (TCP); alternative ports 80 or 443 can be set.
Using the Diagnostics Page
Diagnostics page provides troubleshooting assistance for connection issues.
Firewall MAC Address Filtering
Check if MAC address of REX 100 needs approval in higher-level DSL modem or firewall.
Proxy Connection Settings
Check proxy settings if connection is not established; adjust in Internet settings.
NTP Server Configuration
Set preset NTP server entry and interval for internal system time comparison.
Mail Settings for Email Notifications
Port 25 (SMTP) may not be blocked for sending e-mails; alternative servers can be used.
Troubleshooting Mobile Connection Issues
Reasons for interrupted mobile connection include wrong credentials or blocked ports.
Remote Maintenance of Ethernet CPUs
Firewall and SNAT Settings
SNAT function activated by default to access participants via VPN tunnel.
Search Over IP Functionality
SEARCHoverIP finds unparameterized network components; recommended to deactivate.
Description of LEDs and Buttons
Router Status LEDs
Explains the meaning of PWR, RDY, CON, USR LEDs and RJ45 network LEDs.
Device Buttons (FCN/RST)
Explains the function of the FCN and RST buttons.
myREX24 V2 Portal LEDs
Explains LED status for device connection to the portal.
Technical Data
REX 100 WAN Specifications
Detailed technical specifications for the REX 100 WAN model.
REX 100 WiFi Specifications
Detailed technical specifications for the REX 100 WiFi model.
REX 100 LTE Europe/Asia Specifications
Detailed technical specifications for REX 100 LTE Europe/Asia models.
REX 100 LTE North America Specifications
Detailed technical specifications for REX 100 LTE North America versions.
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