Lantronix 4120 Series User manual

ION System x4120 Series
10 Gbps Copper-to-Fiber Converter
Slide-in-Card and NID
User Guide
Part Number 33551
Revision C August 2023

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Intellectual Property
© 2023 Lantronix, Inc. All rights reserved. No part of the contents of this publication may be transmitted or
reproduced in any form or by any means without the written permission of Lantronix.
Lantronix is a registered trademark of Lantronix, Inc. in the United States and other countries.
All other trademarks and trade names are the property of their respective holders.
Patented: https://www.lantronix.com/legal/patents/; additional patents pending.
Warranty
For details on the Lantronix warranty policy, go to http://www.lantronix.com/support/warranty.
Contacts
Lantronix Corporate Headquarters
48 Discovery, Suite 250
Irvine, CA 92618, USA
Toll Free: 800-526-8766
Phone: [phone]
Fax: [phone]
Technical Support
Online: https://www.lantronix.com/technical-support/
Sales Offices
For a current list of our domestic and international sales offices, go to www.lantronix.com/about/contact.
Disclaimer
All information contained herein is provided “AS IS.” Lantronix undertakes no obligation to update the in-
formation in this publication. Lantronix does not make, and specifically disclaims, all warranties of any
kind (express, implied or otherwise) regarding title, non-infringement, fitness, quality, accuracy, complete-
ness, usefulness, suitability or performance of the information provided herein. Lantronix shall have no
liability whatsoever to any user for any damages, losses and causes of action (whether in contract or in
tort or otherwise) in connection with the user’s access or usage of any of the information or content con-
tained herein. The information and specifications contained in this document are subject to change with-
out notice.
Revision History
Rev
Date
Description of Changes
A
06/13/13
Initial release for v 1.2.3.
B 6/6/18
Update for FW v 1.2.6 with support for management and FW upgrade of a C4120
when installed in an unmanaged ION chassis and contact info. Update for FW v 2.0.1
and Bootloader v 0.1.5 with Slot ID and TLPT fixes.
C
8/21/23
Initial Lantronix re-brand. Remove Glossary and Index.

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Cautions and Warnings
Definitions
Cautions indicate that there is the possibility of poor equipment performance or potential
damage to the equipment. Warnings indicate that there is the possibility of injury to person.
Cautions and Warnings appear here and may appear throughout this manual where
appropriate. Failure to read and understand the information identified by this symbol could result
in poor equipment performance, damage to the equipment, or injury to persons.
Cautions
Do not ship or store devices near strong electrostatic, electromagnetic, magnetic, or
radioactive fields.
Caution: When handling chassis cards, observe electrostatic discharge precautions.
This requires proper grounding (i.e., wear a wrist strap).
Caution: Copper based media ports, e.g., Twisted Pair (TP) Ethernet, USB, RS232,
RS422, RS485, DS1, DS3, Video Coax, etc., are intended to be connected to intra-building
(inside plant) link segments that are not subject to lightening transients or power faults. They are
not to be connected to inter-building (outside plant) link segments that are subject to lightening.
Caution: Do not install the x4120 in areas where strong electromagnetic fields (EMF)
exist. Failure to observe this caution could result in poor x4120 performance.
Caution: Read the installation instructions before connecting the chassis to a power
source. Failure to observe this caution could result in poor performance or damage to the
equipment.
Caution: Only trained and qualified personnel should install or perform maintenance on
the ION219-A chassis. Failure to observe this caution could result in poor performance or
damage to the equipment.
Caution: Do not let optical fibers come into physical contact with any bare part of the body since
they are fragile, and difficult to detect and remove from the body.
Caution: Do not bend any part of an optical fiber/cable to a diameter that is smaller than the
minimum permitted according to the manufacturer’s specification (usually about 65 mm or 2.5 in)!

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Warnings
Warning: Use of controls, adjustments or the performance of procedures other than
those specified herein may result in hazardous radiation exposure.
Warning: Visible and invisible laser radiation when open. Do not stare into the beam or
view the beam directly with optical instruments. Failure to observe this warning could result in
an eye injury or blindness.
Warning: DO NOT connect the power supply module to external power before installing
it into the chassis. Failure to observe this warning could result in an electrical shock or death.
Warning: Select mounting bracket locations on the chassis that will keep the chassis
balanced when mounted in the rack. Failure to observe this warning could allow the chassis to
fall, resulting in equipment damage and/or possible injury to persons.
Warning: Do not work on the chassis, connect, or disconnect cables during a storm with
lightning. Failure to observe this warning could result in an electrical shock or death.
See the Install Guide for Electrical Safety Warnings translated into multiple languages.

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Table of Contents
1: Introduction ............................................................................................................................................ 6
Document Overview ................................................................................................................................. 6
Related Manuals and Online Helps .......................................................................................................... 8
2: Management Methods ........................................................................................................................... 9
3: Configuration ....................................................................................................................................... 20
Device Description Configuration ........................................................................................................... 23
Agent III C1|S17|L1D>set device description thenewone .................................................................. 23
Agent III C1|S17|L1D>show dev descr .............................................................................................. 23
Device description: thenewone .......................................................................................................... 23
Agent III C1|S17|L1D>........................................................................................................................ 23
Transparent Link Pass Through (TLPT) Configuration .......................................................................... 27
Auto Negotiation – Web Method............................................................................................................. 33
Check Ethernet Port Config – Web Method ....................................................................................... 35
Loopback Management .......................................................................................................................... 36
4: Operation .............................................................................................................................................. 38
Reboot .................................................................................................................................................... 44
Rebooting – CLI Method .................................................................................................................... 44
Transfer Files via Serial Protocol (X/Y/Zmodem) – CLI Method ............................................................ 48
5: Troubleshooting................................................................................................................................... 50
General ................................................................................................................................................... 50
Basic ION System Troubleshooting........................................................................................................ 50
Error Indications and Recovery Procedures........................................................................................... 51
LED Fault and Activity Displays.............................................................................................................. 52
The Config Error Log (config.err) File..................................................................................................... 96
Third Party Troubleshooting Tools........................................................................................................ 113
Recording Model Information and System Information ........................................................................ 132
Appendix A: Warranty, Compliance and Electrical Safety ................................................................ 134
Appendix B: SNMP MIBs and Traps Support....................................................................................... 135
List of Figures
Figure 1: CLI Location Hierarchy ............................................................................................................... 10
Figure 2: Private MIB Objects ................................................................................................................... 136
Figure 3: SNMP Message Sequence........................................................................................................ 138
List of Tables
Table 1: Documentation Conventions........................................................................................................... 7
Table 2: System-Level Menu Description ................................................................................................... 15
Table 3: Port-Level Menu Description......................................................................................................... 16
Table 4: File Status after a Reset to Factory Defaults ................................................................................ 41
Table 5: File Content and Location after a System Reboot ........................................................................ 46
Table 6: DMI Parameters .......................................................................................................................... 110
Table 7: Trap Server Log File Description ................................................................................................ 141

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1: Introduction
Product Overview
The x4120-1040 is a 10 Gigabit Ethernet copper to fiber media converter. It offers conversion technology
by providing one 10GBase-T RJ-45 port and one pluggable 10GBase-X fiber SFP+ port. The open SFP+
port supports a wide variety of Lantronix 10GE SFP+ fiber modules, as well as third party MSA
compatible SFP+ modules.
The x4120 provides several 10G Ethernet enterprise and data center connectivity solutions. Since most
10G Ethernet switches support a combination of copper RJ-45 and open SFP+ ports, the x4120 allows
users to convert either of these ports to the media type of their preference to match their network
requirements, including direct attached copper SFP+ cables.
The C4120 slide-in-card is a managed device when installed in a managed ION Chassis. The stand-alone
S4120 is an unmanaged device, until it is linked to C4120 installed in a managed ION chassis, and then
remote in-band management of the S4120 is available.
These devices can be managed via Command Line Interface (CLI), Web interface, or Telnet. Access is
through the IONMM (ION Management Module), also installed in the ION chassis. See the related x4120
Installation Guide on the web at https://www.lantronix.com/products-class/chassis/.
Document Overview
The purpose of this manual is to provide the user with an understanding of the Lantronix x4120 Ethernet
media converter. This manual documents the following models:
•C4120-1040 : 10GBase-T Copper to Fiber Media Converter
•S4120-1040 : 10GBase-T Copper to Fiber Media Converter

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Documentation Conventions
The conventions used within this manual for commands/input entries are described in the table below.
Table 1: Documentation Conventions
Convention Meaning
Boldface text
Indicates the entry must be made as shown. For example:
ipaddr=<addr>
In the above, only ipaddr= must be entered exactly as you see it, including the equal
sign (=).
< >
Arrow brackets indicate a value that must be supplied by you. Do not enter the
symbols < >. For example:
ipaddr=<addr>
In place of <addr> you must enter a valid IP address.
[ ]
Indicates an optional keyword or parameter. For example:
go [s=<xx>]
In the above, go must be entered, but s= does not have to be.
{ } |
Indicates that a choice must be made between the items shown in the braces. The
choices are separated by the | symbol. For example:
state={enable | disable}
Enter state=enable or state=disable.
“ ”
Indicates that the parameter must be entered in quotes. For example:
time=<“value”>
Enter time=”20100115 13:15:00”.
>
Indicates a selection string. For example:
Select File > Save.
This means to first select/click File then select/click Save.

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Related Manuals and Online Helps
A printed Documentation Postcard is shipped with each x4120. Context-sensitive Help screens, as well
as cursor-over-help (COH) facilities are built into the Web interface. A substantial set of technical
documents, white papers, case studies, etc. are available on the Lantronix web site at
https://www.lantronix.com/technical-support/.
The ION system and related device manuals are listed below.
1. Product Documentation Postcard, 33504
2. C4120 Install Guide, 33549
3. S4120 Install Guide, 33550
4. x4120 User Guide, 33551 (this manual)
5. x4120 CLI Reference Manual, 33552
6. ION Management Module (IONMM) User Guide, 33457
7. SFP manuals (product specific)
8. Release Notes (software version specific)
This manual may provide links to third part web sites for which Lantronix is not responsible. Information in
this document is subject to change without notice. All information was deemed accurate and complete at
the time of publication. This manual documents the latest software/firmware version. While all screen
examples may not display the latest version number, all of the descriptions and procedures reflect the
latest software/firmware version, noted in the Revision History on page 2. Note: Some Documentation
may have Transition Networks named or pictured. Transition Networks was acquired by Lantronix in
August 2021.

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2: Management Methods
General
The x4120s are managed either directly or through the IONMM. Whether the x4120is managed directly
or indirectly, management is accomplished through one of the following methods.
•Telnet session – uses a command line interface (CLI) to access and control the IONMM through
the network.
•Universal Serial Bus (USB) – uses a CLI to access and control the IONMM through a locally
connected workstation.
•Web-browser – access and control the IONMM using a standard web browser and a graphical
user interface (GUI).
The x4120 can be remotely managed directly (i.e., not through IONMM). This enables administrators to
monitor and configure remote stand-alone x4120s straight from the Network Management Station (NMS)
without leaving the office.
IONMM Managed Devices
IONMM devices that are managed through the IONMM are either chassis resident (x4120) or standalone
modules (S32xx or media converters) that are connected as remotes to chassis resident modules.
Communications between the IONMM and remote devices is through the ION Chassis backplane. See
the IONMM User Guide for details.
Managing Slide-In and Remote Modules Using CLI Commands
Management of modules other than the IONMM can be accomplished by entering CLI commands through
either the local USB serial interface or a remote Telnet session. CLI commands can operate on the
device level or port level. This is indicated by the status of the command prompt’s preamble.
For example:
AgentIII C1|S7|L1D>
or just:
C1|S1|L1D>
This prompt indicates that any subsequent commands entered are for the module located in chassis
1/slot1. In order to enter a command for a different device or port in the ION system, you must change the
location of the command prompt. The go command lets you change the hierarchical location of the
command prompt. Before using the command, a familiarity with the hierarchy structure in the ION system
is essential.

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A representation of the hierarchy is shown in the figure below.
Figure 1: CLI Location Hierarchy
In the above figure, there are three levels of devices:
• L1D, or level one device, refers to devices (IONMM and other chassis-resident devices) that are
installed in the chassis.
• L2D, or level two device, refers to a device that is directly connected to a port in a NID in the
chassis and has other devices connected to it.
• L3D, or level three device, refers to a device that is directly connected to a port in a level one
device.
The ports on a device are divided into two categories: Device ports and Attachment ports.
• Device ports – These are ports on a specified device that are used as service ports for either
customer or network connections, and are typically attached to routers or switches. These ports
are labeled L1P=, L2P= and L3P=. The L1, L2, and L3 indicate the level of the device that the port
is on. Devices attached to a port with this designation cannot be managed by the IONMM.
• Attachment port – These are also ports on a specified device; they are labeled L1AP= and L2AP=
and indicate an attachment point for another ION family device that can be managed by the
IONMM.
Physically these are the same port. That is, L1P1 and L1AP1 are both port one on a level one device.
However, it is how they are used that determines their syntax. For example, L1P1 indicates that the port

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is used to connect to a service device that is not managed by the IONMM. L1AP1 indicates that the port
is used to connect to a level two device that can be managed by the IONMM.
Example 1
In the CLI location hierarchy, to go to the first port (L3P1) on device L3D in the network topology shown in
Figure 19, you would enter the following command from the base prompt.
C1|S1|L1D>go s=5 l1ap=2 l2ap=1 l3p=1
The resulting command line prompt would be:
C1|S5|L1AP2|L2AP1|L3P1>
Any CLI command appropriate for the port can now be entered.
Example 2
In the CLI location hierarchy, to go to device L2D in the network topology shown in Figure 5, you would
enter the following command from the base prompt.
C1|S1|L1D>go s=5 l1ap=2 l2d=1
The resulting command line prompt would be:
C1|S5|L1AP1|L2D>
Any CLI command appropriate for the device can now be entered.
The following describes the procedure for using CLI commands to manage the x4120s.
1. Access the x4120 through either a USB connection or a Telnet session.
2. Use the go command to change the operational location to the device/port to be managed. The go
command format is:
go [c=CHASSIS] [s=SLOT] [l1ap=PORT] [l2ap=PORT] (l1p=PORT|l2p=PORT|l3p=PORT|l1d|l2d|l3d)
3. Configure the x4120using the appropriate commands. For a complete list of the available commands,
see the x4120 CLI Reference Manual.
4. To return the location to the IONMM, type home and press Enter.

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Managing Slide-In and Remote Modules via the Web Interface
1. Access the x4120 through the Web interface (see “Starting the Web Interface”on page 45).
2. Click on the slide-in module or port to be managed.
3. The operations that can be performed depend on the type of slide-in module. Refer to the product
documentation for the information. See the “Related Manuals” section on page 8.

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Direct Managed Devices
Direct management is for standalone devices that are not connected to a module that is managed
through the ION Management Module (IONMM). In direct management, the network and/or USB cable is
connected directly to the module to be managed.
Managing Standalone Modules Using CLI Commands
Management of standalone modules can be accomplished by entering CLI commands through either the
local USB serial interface or a remote Telnet session. CLI commands can operate on the device level or
port level. This is indicated by the status of the command prompt’s preamble.
For example:
AgentIII C1|S7|L1D>
or just:
C1|S7|L1D>
This prompt indicates that any subsequent commands entered are for the device instead of a port. In
order to enter a command for a port, you must change the location of the command prompt. The go
command allows you to change the hierarchical location of the command prompt.
The go command format is:
go [c=CHASSIS] [s=SLOT] [l1ap=PORT] [l2ap=PORT] (l1p=PORT|l2p=PORT|l3p=PORT|l1d|l2d|l3d)
EXAMPLE
In the CLI location hierarchy, to go to port 1 on a device, you would enter the following command from the
base prompt:
C1|S7|L1D>go l1p=1
The resulting command line prompt would be:
C1|S7|L1P1>
Any CLI command appropriate for the port can now be entered.
Subsequently, to return to the device level, you would enter the following:
C1|S7|L1P1>go l1d
The resulting command line prompt would be:
C1|S7|L1D>

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Managing Standalone Modules via the IONMM Web Interface
1. Access the x4120through the Web interface (see “Starting the Web Interface” on page 45).
2. Click the plus sign [+] next to ION Stack to unfold the "ION Stack" node in the left tree view if not
already done.
3. Click the plus sign [+] next to Chassis and click the plus sign [+] next to a module.
4. Click on the module or port to be managed (e.g., the C4120 above).
5. Select the various tabs to perform the applicable operations.

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Menu System Descriptions
The table below describes the ION Web interface in terms of its system-level pane, dropdowns, tabs
and sub-tabs. Note that menus and tabs vary slightly by model.
Table 2: System-Level Menu Description
Dropdown / Tab Description
ION System pane
ION Stack - consists of one chassis or one standalone device.
The Stack Members table lists the Stack's chassis and its type.
Chassis - the ION System family of products; the Chassis View shows a
summary view of one such chassis. Model Information includes:
*Serial Number - The serial number of the chassis itself. Each x4120 also
have its own serial number.
*Model Name - The exact model name of this device (e.g., ION219).
When contacting Technical Support, please be sure to give this name
rather than the less specific Catalog number.
*Software Revision, Hardware Revision, and Bootloader Revision.
*Chassis Members table - lists local physical components in slots 1 to 19.
Device – provides tabs and sub-tabs for the IONMM and x4120s in the
ION system.
Port - provides tabs and sub-tabs for a selected x4120 port.
System Dropdown Sign out.
View Dropdown Refresh.
Help Dropdown Online Help, ION Product Home Page, About ION System Web Interface.
MAIN Tab
Sections: Model Information, System Configuration, Device Description,
and Transparent Link Pass Through (TLPT) sections.
Buttons: Uptime Reset, System Reboot, Reset To Factory Config buttons.
Refresh, Save, and Help buttons.

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The table below describes the ION Web interface in terms of its port-level tabs and sub-tabs.
Table 3: Port-Level Menu Description
Tab Description
MAIN Tab
Sections: Circuit ID, Port Configuration, and Loopback Management.
Buttons: Refresh, Save, Start, Stop and Help.
DMI Tab
(Port 2 only)
Sections: Interface Characteristics, Diagnostic Monitoring, Supported Media
Length.
The DMI (Diagnostic Maintenance Interface) function displays x4120
diagnostic and maintenance information such as interface characteristics,
diagnostic monitoring parameters, and supported media lengths. See “DMI
(Diagnostic Maintenance Interface) Parameters” on page 248 for more
information.
Note: not all x4120 and SFP models support DMI. Lantronix models that
support DMI have a “D” at the end of the model number.
If you click the DMI tab on a x4120 model that does not support DMI, the
message “The DMI feature is not supported on current port.”
Buttons: Refresh, Save, and Help.

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Reboot, Reset, and Power Off Function Notes
Certain functions such as a System Reboot, Reset to Factory Configuration, Reset Power to a Slot, and
Power Off a Slot) cause the system to delete certain stored files. Caution: In some circumstances, these
stored files are lost unless you first perform a System Backup. See the “Backup and Restore Operations”
section starting on page 199 for information on how to save the stored files from deletion.
For more information on how the Reboot, Reset, and Power Off functions impact stored files, see:
•Table 3: Port-Level Menu Description on page 18
•Table 4: File Status after a Reset to Factory Defaultson page 43
•Table 5: File Content and Location after a System Reboot on page 48
Doing a reboot, restart or upgrade of the IONMM, a power restart of the chassis, or a reset to
factory removes temporary files (e.g. configuration backup files, Syslog file). A Factory Reset also
removes the permanent settings (e.g. configuration files, HTTPS certification file, SSH key).
System Reboot
Clicking the System Reboot button resets all system states and reinitializes the system; all configuration
data is saved during a restart.
Press the Cancel button if you are not sure you want a system reboot to occur.
Press the OK button to clear the webpage message and begin the reboot process.
The message “Loading, please wait... displays.
Note that a System Reboot can take several minutes.

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Reset To Factory Config
Clicking the Reset To Factory Config button resets the entire system configuration to the state it was in
when it shipped from the factory. This permanently removes all current configuration details and loads the
factory default settings. The message “A factory reset will wipe out all current configuration and load the
factory defaults along with a system reboot; are you sure to proceed?” displays.
You should only click OK if you wish to reboot. Otherwise, click Cancel if you are not sure you want a
factory reset / reboot to occur.
Reset Power to a Slot
At the Chassis > MAIN tab, you can click the Reset button to reset power for the selected slot in the
chassis. The message “Are you sure to power reset this slot?” displays.
After power reset it will take a while to see card change in this slot; fold/unfold the Chassis node in the
tree panel to check the progress. If the card information changes on the Tree, then click the Refresh
button on this page.
If you are not sure that you want to reset this chassis, click the Cancel button to clear the message and
return to normal operations without resetting power to this slot.

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Power Off a Slot
At the Chassis > MAIN tab, you can click the Off button to remove power to a selected slot in the
chassis. The message “Are you sure to power off this slot?” displays.
If you are not sure that you want to power off this slot, click the Cancel button to clear the message and
return to normal operations without resetting power to this slot.
After power off, it will take a while for the card to disappear from this slot; fold/unfold the Chassis node in
the left tree panel to check the progress. If the card information changes on the Tree, then click the
Refresh button on this page.

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3: Configuration
General
After the x4120 has been installed and access has been established, the device and its ports must be
configured to operate within your network. The configuration establishes operating characteristics of the
device and the ports associated with the x4120.
Configurations can be done either by entering CLI commands (USB / Telnet) or through a Web interface.
For complete descriptions of all CLI commands, see the x4120CLI Reference Manual.
The operating characteristics that can be defined for the x4120are:
• System setup
• Features
– Transparent Link pass through (TLPT)
– Device Description
• Port setup
– Circuit ID
– Admin Status
– Loopback Management
Note: Lantronix recommends as a “best practice” to back up each SIC card’s configuration after it is fully
configured so that in the event of an error or hardware failure, the configuration can be easily and rapidly
restored.