ProSoft Technology PLX35-NB2 User manual

PLX35-NB2
Network Bridge
July 20, 2022
USER MANUAL

PLX35-NB2 Contents
Network Bridge User Manual
ProSoft Technology, Inc. Page 2 of 69
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PLX35-NB2 User Manual
For Public Use.
July 20, 2022
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PLX35-NB2 Contents
Network Bridge User Manual
ProSoft Technology, Inc. Page 3 of 69
Important Installation Instructions
Power, Input, and Output (I/O) wiring must be in accordance with Class I, Division 2 wiring methods, Article
501-4 (b) of the National Electrical Code, NFPA 70 for installation in the U.S., or as specified in Section 18-
1J2 of the Canadian Electrical Code for installations in Canada, and in accordance with the authority having
jurisdiction. The following warnings must be heeded:
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY
FOR CLASS I, DIV. 2;
WARNING - EXPLOSION HAZARD - WHEN IN HAZARDOUS LOCATIONS, TURN OFF POWER BEFORE
REPLACING OR WIRING MODULES
WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN
SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
Class 2 Power
Agency Approvals and Certifications
Please visit our website: www.prosoft-technology.com

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Network Bridge User Manual
ProSoft Technology, Inc. Page 4 of 69
Contents
Your Feedback Please................................................................................................................2
How to Contact Us.......................................................................................................................2
Content Disclaimer......................................................................................................................2
Important Installation Instructions................................................................................................3
Agency Approvals and Certifications...........................................................................................3
1Start Here 6
1.1 About the PLX35-NB2 Network Bridge..............................................................6
1.1.1 Specifications.....................................................................................................7
1.2 PLX35-NB2 Package Contents .........................................................................7
1.3 Jumper Information............................................................................................8
1.4 Failover and Automatic Backup & Factory Reset..............................................8
1.4.1 Failover..............................................................................................................8
1.4.2 Automatic Backup & Factory Reset...................................................................8
2Quick Start 9
2.1 Local Configuration............................................................................................9
2.2 Belden Horizon Setup and Configuration ..........................................................9
3Installing the PLX35-NB2 10
3.1 LED Indicators .................................................................................................11
3.1.1 Ethernet Port LEDs..........................................................................................12
4Local Configuration Using the PLX35-NB2 Configuration Webpage 13
4.1 Connecting to the PLX35-NB2 Webpage........................................................13
4.2 Using the Overview Tab ..................................................................................15
4.3 Setting Gateway Configuration Parameters ....................................................15
4.3.1 Open Source Software and License Information.............................................18
4.4 Configuring Login Credentials .........................................................................20
4.4.1 Advanced Configuration ..................................................................................21
4.4.2 Initial / Factory Reset Login.............................................................................22
4.5 File Relay.........................................................................................................25
4.5.1 Example #1: Transferring Files Across Segmented Networks Using FTP......29
4.5.2 Example #2: Transferring Files Across Segmented Networks Using SFTP ...35
4.6 SD Card...........................................................................................................40
4.7 Viewing Gateway Log file Activity....................................................................41
4.8 Importing a Configuration File..........................................................................42
4.9 Exporting a Configuration File .........................................................................43
4.10 Updating the Firmware ....................................................................................44
4.11 Rebooting the Gateway ...................................................................................45
4.12 Factory Reset...................................................................................................46
5Cloud-based Management Using Belden Horizon 48
5.1 Log In and Activate Belden Horizon ................................................................48
5.2 Creating and Connecting a New VPN Client...................................................51
5.2.1 Verifying the VPN Connection.........................................................................55

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5.3 Using Belden Horizon to Configure the PLX35-NB2.......................................57
5.4 Adding Team Members ...................................................................................58
5.4.1 Editing Team Member Access.........................................................................60
5.5 Changing Firmware .........................................................................................61
5.6 Remote Packet Capture ..................................................................................65
6Ethernet Cable Specifications 67
6.1 Ethernet Cable Configuration ..........................................................................67
7Support, Service & Warranty 68
7.1 Contacting Technical Support..........................................................................68
7.2 Warranty Information .......................................................................................69

PLX35-NB2 Start Here
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1 Start Here
1.1 About the PLX35-NB2 Network Bridge
The PLX35-NB2 Network Bridge is the ideal solution for system integrators, machine
builders, and OEMs requiring remote system access for commissioning, troubleshooting,
or network maintenance.
During the commissioning phase, a network bridge is deployed on site with automation
equipment. Once the equipment is installed and ready for configuration and
programming, the bridge allows the user to remotely access the network to commission,
maintain, and troubleshoot the system, thereby reducing travel time costs.
By deploying a network bridge to an existing network, the network bridge allows access
from anywhere by authorized personnel. In the event of unscheduled downtime, an
authorized user can connect to the network to minimize downtime and loss of profit.
Module configuration and remote connections are accomplished through Belden
Horizon™, ProSoft Technology's secure, cloud-native platform for the Industrial Internet
of Things (IoT).
The PLX35-NB2 allows users to:
Securely connect to remote devices from any PC without having to use a 3rd-party
software application
Locally control the VPN connection through an EtherNet/IP® message.
The PLX35-NB2 provides 2 Ethernet ports. One port is used for the local network
requiring remote access. The second port is used to connect to the internet.

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1.1.1 Specifications
1.1.1.1 Power
Power
24 VDC nominal, 10 to 36 VDC allowed, Positive, Negative, and
GND terminals
Power Connector
Three pin, screw terminal, screw retention, black
Current Load
24 VDC nominal @300 mA
1.1.1.2 Internal Specs
EtherNet/IP
Supports local control of VPN access through MSG instruction.
Network Ports
HTTP or HTTPS ports 8080
1.1.1.3 Physical
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
(2) 10/100 Base-T, RJ45 connector
1.1.1.4 Environmental
Operating Temperature
IEC 60068; -22°F to +158°F (-30°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 PLX35-NB2 Package Contents
The following components are included with the PLX35-NB2 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
PLX35-NB2 Network Bridge
PLX35-NB2
2-port Network Bridge
1
2-pin Power Connector
002-0116
Power Connector
If any of these components are missing, please contact ProSoft Technology Technical
Support for replacement parts. See Contacting Technical Support (page 68).

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1.3 Jumper Information
The module has one visible set of jumper pins on the back of the gateway. These pins
should only be jumped/shunted when resetting the gateway back to factory defaults.
To perform a factory reset:
1 Set the jumper on both pins and power-cycle the module.
2 Wait until the FLT, CFG and ERR LED’s flash in a reverse-clockwise direction
(the gateway should boot twice by then).
3 You will notice all the LED’s flashing twice (except interface LED’s).
4 Remove the jumper and wait for the gateway to finish the power-cycle.
5 When the factory reset has finished, the CFG LED flashes.
1.4 Failover and Automatic Backup & Factory Reset
1.4.1 Failover
The Failover process provides a recovery mechanism whenever a serious malfunction
renders the main filesystem inoperable.
If the system fails to boot up (all LEDs are solid on) 4 times in a row, on the 5th boot up
the gateway will enter a failover state (the FLT LED is solid red and the CFG LED blinks
amber). While in this state, the PLX35-NB2 can be accessible using its default
configuration. A new upgrade can be performed on the gateway which should fix the
serious malfunction that led to the failover state.
1.4.2 Automatic Backup & Factory Reset
If the system fails to boot up (all LEDs are solid on) 10 times in a row, on the 11th boot
up the gateway tries to restore the backup firmware and configuration. The backup
firmware and configuration are in place before the last upgrade was performed.
If the backup restore procedure has performed correctly, only the PWR LED will be lit
upon boot up.
The automatic factory reset process takes place when the PLX35-NB2 needs to return to
the default configuration. This is because the backup restore process has not
succeeded. After this process is completed, it will run the factory default image with the
default configuration, in an out-of-the-box condition. In this case, there is no need to use
a jumper to perform a factory reset.
If the factory reset has performed correctly, the CFG LED will blink amber.

PLX35-NB2 Quick Start
Network Bridge User Manual
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2 Quick Start
2.1 Local Configuration
Task
Page
Install the module
10
Connect to the PLX35-NB2 webpage
13
Set gateway configuration parameters
15
Configure login credentials
20
Update firmware
44
2.2 Belden Horizon Setup and Configuration
Belden Horizon allows you to remotely configure, maintain, and troubleshoot the
gateway.
Task
Page
Obtain an activation key and login to Belden Horizon
48
Create a VPN client
51
Establish a VPN Connection
51
Perform configuration functions in Belden Horizon
57
Add Team Members
58
Change Firmware if required
61

PLX35-NB2 Installing the PLX35-NB2
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3 Installing the PLX35-NB2
Mount the PLX35-NB2 such that:
There is easy access for the cables to ensure that they are not bent, constricted, in
close proximity to high amperage, or exposed to extreme temperatures.
The LEDs on the front panel are visible for troubleshooting and verifying the gateway
status.
There is adequate airflow around the gateway, but also protected from direct
exposure to the elements, such as sun, rain, and dust.
Caution: The PLX35-NB2 is in a hardened case, and is designed for use in industrial and extreme
environments; however, unless you are using cables expressly designed for such environments, the cables
can fail if exposed to the same conditions the PLX35-NB2 can withstand.

PLX35-NB2 Installing the PLX35-NB2
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3.1 LED Indicators
The following table describes the diagnostic LEDs on the PLX35-NB2.
LED
State
Description
MGMT
Off
The module cannot reach the internet and is not managed
by Belden Horizon (default).
Flashing Green
The module can reach the internet.
Solid Green
The module is managed by a Belden Horizon account.
Solid Red
N/A
Flashing Red
The module is configured to be managed by Belden
Horizon but cannot reach Belden Horizon.
Alternating Red/Green
N/A
VPN
Off
Belden Horizon is not enabled (default).
Flashing Green
VPN is possible (normal).
Solid Green
A VPN tunnel is established.
Solid Red
The module is managed by Belden Horizon and EIP has
disabled VPN tunneling.
Flashing Red
VPN connection failed.
Alternating Red/Green
N/A
PWR (Power)
Off
Power is not connected to the power terminals or source is
insufficient to properly power the module.
Solid Green
Sufficient power is connected to the power terminals.
FLT (Fault)
Off
Normal operation
Solid Red
A critical error has occurred. Program executable has
failed or has been user-terminated and is no longer
running. Press the Reset button or cycle power to clear the
error.
CFG
Off
Normal operation
Flashing Amber
The module has no configuration.
Solid Amber
The module is in configuration mode. Either a
configuration error exists, or the configuration file is
currently being downloaded or read. After power-up or
after the Reset button is pressed, the configuration is read
and the module implements the configuration values and
initializes the hardware.
ERR
Off
Normal operation
Flashing Amber
An error condition has been detected and is occurring on
one of the application ports. Check configuration and
troubleshoot for communication errors.
Solid Amber
The ERR LED is cleared on receipt of a well-formed
allowed packet. On receipt of data packet containing an
unsupported protocol, the LED is lit. If the LED is solid, a
large number of errors are occurring on one or more ports
(network communication errors).

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3.1.1 Ethernet Port LEDs
LED
State
Description
100 Mbit
Off
No activity on the port
Flashing Amber
The Ethernet port is actively transmitting or receiving data.
LNK/ACT
Off
No physical connection is detected. No Ethernet
communication is possible. Check wiring and cables.
Solid Green
Physical network connection detected. This LED must be
ON (solid) for Ethernet communication to be possible.

PLX35-NB2 Local Configuration Using the PLX35-NB2 Configuration Webpage
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4 Local Configuration Using the PLX35-NB2
Configuration Webpage
The PLX35-NB2 contains a browser-based configuration webpage used for
configuration. The following sections describe the configuration process.
4.1 Connecting to the PLX35-NB2 Webpage
1 Ensure that the module is connected to the network through the LAN port.
2 Apply power to the module.
3 To log into the PLX35-NB2 configuration webpage through the network, your PC
must be able to connect to the PLX35-NB2. The default IP address of the PLX35-
NB2 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 (where xxx is an
available address on the network).
Note: You can also use ProSoft Discovery Service to discover the IP address. You can download and
install ProSoft Discovery Services from the ProSoft website at www.prosoft-technology.com.
4 In a web browser and enter the PLX35-NB2 default address of 192.168.0.250.
Minimum browser requirements: Chrome 58, Firefox 54, and Internet Explorer 10.
5 Once the PLX35-NB2 configuration webpage opens, enter the USERNAME and
PASSWORD to log in. The default USERNAME is admin and the default PASSWORD is
password.
Note: For security purposes, you must change the default user name and password after initial login or
factory reset. See Initial / Factory Reset Login on page 22.

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6 After you successfully log in, the configuration webpage displays the Overview tab.
This page allows you to:
View Performance Information
View Device Details
Update Firmware
Manually enter a custom date and time
7 After 5 consecutive failed login attempts, you will not be allowed to login for next 10
minutes. The login details and status is logged in syslog and /psft/loginRecords.txt
(The last 100 login attempts are logged).

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4.2 Using the Overview Tab
The Overview tab contains performance information as well as device details, access
information, and module location information.
In addition, this page allows you to make firmware updates to the gateway. You can view
this tab at any time by simply clicking on the Overview tab.
Tip: This tab provides an Activation Code that allows you to take advantage of configuring and maintaining
your gateway using Belden Horizon. See Cloud-based Maintenance using Belden Horizon on page 48 for
details on using this code.
4.3 Setting Gateway Configuration Parameters
1 Click on the Gateway tab.

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2 Use the following table to enter the appropriate parameters:
Parameter
Description
Gateway
Gateway Name
Enter a name for this gateway.
Description
Enter a description to describe the gateway.
For example, Network Bridge - Bakersfield.
Address
Enter the street address of the gateway (i.e., where the gateway resides)
Advanced
configuration (link)
This link allows you to provide GPS coordinates of the gateway's location.
Local Area Network
IP
Enter the IP address of the gateway. This is a static IP address. The default
IP address is 192.168.0.250. (The netmask is always 255.255.255.0).
Subnet
Subnet mask of the PLX35-NB2 Ethernet port.
Default Gateway
Default gateway of the PLX35-NB2 Ethernet port.
DHCP Server
Use this parameter to enable or disable DHCP. The default is Disabled. If
you want to use a DHCP server to select an IP, select Enabled.
Selecting Enabled displays a number of additional DHCP-related parameters
DHCP Lease Time - Allows you to select lease times in hour, minutes, or
seconds. This is the amount of time an IP address remains available on a
particular device before releasing the IP address for use by another device.
DHCP Lease Units - Allows you to specify Hours and Minutes and works in
conjunction with DHCP Lease Time.
DHCP Pool Low - DHCP uses a pool of assigned addresses that are
available to requests. DHCP Pool Low allows you to set the last octet to the
low end number of the pool. (See example below)
DHCP Pool High - DHCP uses a pool of assigned addresses that are
available for use. DHCP Pool High allows you to specify the high-end last
octet of the pool
For example:
This example specifies that the range of addresses that may be used is
between 192.168.72.100 through 192.168.72.249.
NTP
This parameter specifies whether or not the Network Time Protocol (NTP) is
enabled or disabled. The default is Enabled. If Disabled, the following two
parameters are not present.
NTP Server 1
Default set to: 0.us.pool.ntp.org. If you wish to use a different NTP server,
enter it here.

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NTP Server 2
Default set to: 1.us.pool.ntp.org. If you wish to use a different NTP server,
enter it here.
NTP Server 3
Default set to: 2.us.pool.ntp.org. If you wish to use a different NTP server,
enter it here.
NTP Mode
Default is Client. You can change this to Client/Server mode.
Wide Area Network
DHCP Client
This is set to Enabled by default. If your administrator wants to assign a static
IP, this should be set to Disabled.
If Disabled, you must supply the following information:
IP - The IP address assigned to the WAN port.
Subnet - Enter the subnet address.
Gateway - Enter the gateway address for this subnet.
DNS 1 - Enter the Domain Name Server IP provided to your system.
DNS 2 - Enter the backup Domain Name Server IP provided to your system.
VLAN ID
If the gateway is part of a VLAN, enter the VLAN ID.
3 Click the APPLY CHANGES button when complete.

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4.3.1 Open Source Software and License Information
To view a list of the software and licenses contained in the PLX35-NB2, click on the
LICENSES link at the bottom of the Gateway tab.
A list of the Open Source software and its license terms are displayed:

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License Details:
Each entry can be expanded:

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4.4 Configuring Login Credentials
The gateway is shipped with the following login defaults:
User: admin
Password: password
The Access tab allows you to change the default user name and password.
1 Click on the Access tab.
This page allows you to set up the users that can manage and configure this
gateway. The Advanced Configuration link allows you to restrict access based on
user.
2 Enter a user name and a password.
3 Confirm the password by retyping it.