Lantronix M/E-PSW-FX-02 User manual

M/E-PSW-FX-02
Stand-Alone Media Converters
User Guide
Part Number 33487
Revision F February 2023

Lantronix M/E-PSW-FX-02 User Guide
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Intellectual Property
© 2022, 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: patents.lantronix.com; additional patents pending.
Warranty
For details on the Lantronix warranty policy, please 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
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
information 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,
completeness, 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 contained herein. The information and specifications contained in this document are subject to
change without notice.
Revision History
Date
Rev
Notes
11-17-10
A
Initial release.
3-20-15
B
Updated Technical Specifications.
9-16-15
C
Updated Back Panel Power drawing on page 6.
10/14/20
D
Updated description, features, and specifications.
6/4/21 E
Add PEM, update M/E-PSW-FX-02(SM) optical wavelength spec, and add
M/E-PSW-FX-02 Fiber Optic specs.
2/15/23
F
Initial Lantronix rebrand. Update artwork and DoC.

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Table of Contents
Revision History____________________________________________________________ 2
Table of Contents __________________________________________________________ 3
1Introduction 5
Product Description _________________________________________________________ 5
Ordering Information ________________________________________________________ 5
Features__________________________________________________________________ 6
Specifications______________________________________________________________ 6
2Installation 8
Checklist _________________________________________________________________ 8
Power Supply Included ______________________________________________________ 8
Electrostatic Discharge (ESD) _________________________________________________ 8
Copper and Fiber Ports ______________________________________________________ 8
Connect the Fiber Cable _____________________________________________________ 9
Connect the Twisted-pair Copper Cable _________________________________________ 9
Powering the Media Converter ________________________________________________ 10
M/E-PSW-FX-02 Back Panel Power ________________________________________ 10
Power Adapter ____________________________________________________________ 10
AC Power ____________________________________________________________ 10
DC Power ____________________________________________________________ 10
3Operation 11
Status LEDs______________________________________________________________ 11
Product Features __________________________________________________________ 11
Feature Summary - M/E-PSW-FX-02 _______________________________________ 11
Congestion Reduction___________________________________________________ 11
Auto-Negotiation _______________________________________________________ 11
AutoCross™ __________________________________________________________ 12
Automatic Link Restoration _______________________________________________ 12
Full-Duplex Flow Control_________________________________________________ 12
Half-Duplex Flow Control (512-Bit Rule)_____________________________________ 12
Flow Control __________________________________________________________ 12
Distance Extension _____________________________________________________ 12
Rate Conversion _______________________________________________________ 12
Far-End Fault _________________________________________________________ 13
Optic and Cable Specifications _______________________________________________ 13
Fiber Optic Specs ______________________________________________________ 13
Copper Cable Specs _______________________________________________________ 14
Category 3: Minimum requirement for 10 Mbps Operation_______________________ 14
Category 5: Minimum requirement for 10 Mbps Operation_______________________ 14

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4Troubleshooting 15
Contact Us _______________________________________________________________ 15
Compliance Information_____________________________________________________ 16
Declaration of Conformity ________________________________________________ 16
FCC Regulations_______________________________________________________ 16
Canadian Regulations___________________________________________________ 16
European Regulations __________________________________________________ 17

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1 Introduction
Product Description
The M/E-PSW Series is a Fast Ethernet stand-alone Mini media converter that provides cost effective
media conversion between 10/100Base-TX ports and 100Base-FX ports. With its fixed configuration,
deployments are just plug-and-play, and its small size makes it ideal for locations where space is limited.
Operating at Layer 2, the data link layer, this converter not only converts copper to fiber, it also provides
rate conversion allowing legacy 10Base-T copper devices to connect to 100Base-FX fiber.
Ordering Information
SKU
Description
M/E-PSW-FX-02
10/100Base-TX (RJ-45) [100 m/328 ft.] to 100Base-FX 1300nm multimode
(ST) [2 km/1.2 mi.]*Link Budget: 11.0 dB
M/E-PSW-FX-02(SC)
10/100Base-TX (RJ-45) [100 m/328 ft.]* to 100Base-FX 1300nm multimode
(SC) [2 km/1.2 mi.] Link Budget: 11.0 dB
M/E-PSW-FX-02(SM)
10/100Base-TX (RJ-45) [100 m/328 ft.]*to 100Base-FX 1310nm single mode
(SC) [20 km/12.4 mi.] Link Budget: 16.0 dB
Optional Accessories (sold separately)
SPS-2460-SA
Stand-Alone Power Supply option
WMBM
Wall Mount Bracket for Mini Media Converter option
M-MCR-01
18-Slot Powered Mini Chassis option
DRBM
DIN Rail Mount Bracket for Mini Media Converter option
RMBM
Rack Mount Bracket for Mini, use with RMS19-SA4-02 and/or E-MCR-05
* Typical maximum distance. Actual distance depends on network physical characteristics.
M/E-PSW-FX-02
M/E-PSW-FX-02(SC)
M/E-PSW-FX-02(SM)

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Features
•Unit and Port LEDs allow for quick status information
•Auto-Negotiation
•Fixed Full-Duplex on fiber
•Auto-MDI/MDIX
•Automatic Link Restoration
•Far-End-Fault (FEF)
•Connect to legacy network equipment
•Eliminate Collision Domains
Specifications
The information in this user guide is subject to change.
Standards
IEEE 802.3
Data rate
10 Mbps, 100 Mbps
Max Frame Size
1632 bytes (tagged or untagged; incl. CRC)
Dimensions
Width: 1.8” [46 mm] x Depth: 3.3” [85 mm] x Height: 0.85” [22 mm]
Power Consumption
2.6 Watts
MTBF*
41,660 hours (MIL-HDBK-217F)
114,580 hours (Bellcore7 V5.0)
Power Supply
External AC/DC required; +12VDC, 0.5A min
Power Input
7.5 VDC to 13.9 VDC
RAM
1 Mb
MAC Table
8K MAC Addresses
Environment
Operating Temp.**: 0°C to +50°C (32⁰F to 122⁰F)
Storage Temp.: -15°C to +65°C (-5⁰F to 149⁰F)
Humidity: 5% to 95% (non-condensing)
Altitude: 0 – 10,000 ft.
Weight
2 lbs. [0.90 kg]
Certifications
Safety: Wall Mount Power Supply:
UL Listed, cUL Listed (Canada)
FCC Class A, CISPR22/EN55022
Class A, EN55024, CE Mark
Warranty
Lifetime
* MTBF (Mean Time Between Failure) is estimated using the predictability method. The computation is
based on the MIL-HDBK-217 F and Bellcore standards.
**Manufacturer’s rated ambient temperature.
WARNING: If the media converter is an IEEE802.3-2005 Powered Device (PD) capable of receiving
power via the Media Dependent Interface (MDI) leads, the power source, connector, and cable attached
to the barrel power connector must meet the isolation requirement specified in IEEE802.3-2005. Failure to
observe this warning could result in an electrical shock.

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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. Copper-based media ports, e.g., Twisted Pair
(TP) Ethernet, USB, RS232, RS422, RS485, DS1, DS3, Video Coax, etc., are NOT to be connected to
inter- building (outside plant) link segments that are subject to lightening transients or power faults. Failure
to observe this caution could result in damage to equipment.
WARNING: Visible and invisible laser radiation when open. Do not stare into the beam or view directly
with optical instruments. Failure to observe this warning could result in an eye injury or blindness.
WARNING: Use of controls, adjustments, or the performance of procedures other than those specified
herein could result in hazardous radiation exposure.

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2 Installation
Checklist
Before installing the N-FXE Series NIC, verify that the package contains these items:
•One N-FXE Series NIC
•A Product Post Card
Please notify your sales representative immediately if any of these items is missing or damaged.
Power Supply Included
To order the corresponding country specific power supply, add the extension to the end of the SKU.
For example, M/E-PSW-FX-02-NA = North America, -LA = Latin America, -EU = Europe, -UK = United
Kingdom, -SA = South Africa, -JP = Japan, -OZ = Australia, -BR = Brazil.
Electrostatic Discharge (ESD)
Always observe the following ESD precautions when installing or handing the M/E-PSW-FX-02
•Do not remove the converter from its protective packaging until you are ready to
install it.
•Wear an ESD wrist grounding strap before handling any module or component. If you do not have a
wrist strap, maintain grounded contact with the unit throughout
any procedure requiring ESD
protection.
Copper and Fiber Ports
The illustration below shows the front panel of the M/E-PSW-FX-02 media converters.

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Connect the Fiber Cable
Full duplex (always ON) is on the fiber side only, therefore, the 512-Bit Rule does not apply. The cable
lengths are constrained by the cable requirement.
1. Locate or build IEEE 803.2 compliant 100Base-FX fiber cable with male, two- stranded TX to RX
connectors installed at both ends.
2. Connect the fiber cable to the M/E-PSW-FX-02 media converter as follows:
•Connect the male TX cable connector to the female TX port.
•Connect the male RX cable connector to the female RX port.
3. Connect the fiber cable to the other device (media converter, hub, etc.) as follows:
•Connect the male TX cable connector to the female RX port.
•Connect the male RX cable connector to the female TX port.
Connect the Twisted-pair Copper Cable
The AutoCross feature allows either MDI (straight-through) or MDI-X (crossover) cable connections to be
configured automatically, according to network conditions.
•If half-duplex mode is used, refer to the 512-Bit Rule.
•If full-duplex mode is used, the 512-Bit Rule does not apply. The cable lengths are constrained
by the cable requirements.
1. Locate or build IEEE 803.2™ compliant 10Base-T or 100Base-TX cable, with RJ-45 connectors
installed at both ends.
2. Connect the RJ-45 connector at one end of the cable to the RJ-45 port on the M/E-PSW-FX-02.
3. Connect the RJ-45 connector at the other end of the cable to the RJ-45 port on the other device
(switch, workstation, etc.).

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Powering the Media Converter
The power options for the M/E-PSW-FX-02 media converter are product dependent. The following shows
the various power configurations associated with each model.
M/E-PSW-FX-02 Back Panel Power
Power Adapter
AC Power
1. Connect the barrel connector of the power adapter to the media converter’s power port (located on
the back panel of the media converter).
2. Connect the power adapter plug to AC power.
3. Verify that the media converter is powered up by observing the illuminated LED power indicator
light on the front panel.
DC Power
See the Lantronix SPS-1872-SA DC User Guide for the external power supply for powering the media
converter.

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3 Operation
Status LEDs
Use the status LEDs to monitor the media converter operation in the network. LED descriptions are
PWR (Power): (below RJ-45)
ON = Link; Flashing = Activity
FX-Link/Act (Fiber Link/Activity):
(Upper Left on RJ-45)
ON = Link; Flashing = Activity
TX-Link/Act (Copper Link/Activity):
(Upper Right on RJ-45)
ON = Link; Flashing = Activity
Product Features
Feature Summary - M/E-PSW-FX-02
Auto-Negotiation AutoCross Link Pass-Through (LPT) Far End Fault
Yes Yes No Yes
Congestion Reduction
The M/E-PSW-FX-02 media converters do not forward collision signals or error packets from one collision
domain to another, resulting in improvements in baseline network performance. In addition, the media
converter filters packets destined for local devices, which reduces network congestion.
Auto-Negotiation
The Auto-Negotiation feature is ON permanently for the M/E-PSW-FX-02 media converters. Auto-
Negotiation allows the media converter to configure itself automatically to achieve the best possible mode
of operation over a link. It broadcasts speed (10 Mb/s or 100 Mb/s) and duplex capabilities (full or half) to
the other device and negotiates the best mode of operation. Auto-Negotiation allows quick and easy
installation because the optimal link is established automatically.
In a scenario where an auto-negotiation device is linked to a non-negotiating device, the negotiating
device via parallel detection recognizes the speed of that second device then establishes the best
operating speed (10Mb/s or 100Mb/s) at half- duplex.

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AutoCross™
The AutoCross feature allows using either straight-through (MDI) or crossover (MDI-X) copper cables
when connecting to 10Base-T or 100Base-TX devices. AutoCross determines the characteristics of the
connection and automatically configures the device to link up, regardless of the copper cable
configuration, MDI or MDI-X.
Automatic Link Restoration
The media converter will automatically re-establish the link when connected to switches if the link is lost,
even with Auto-Negotiation and Link Pass-through (both directions) enabled.
Full-Duplex Flow Control
In a full-duplex network, maximum cable lengths are determined by the type of cables used. The 512-Bit
Rule does not apply in a full-duplex network. Note: Full duplex is ON permanently for the fiber port only.
Half-Duplex Flow Control (512-Bit Rule)
In a half-duplex network, the maximum cable lengths are determined by the round- trip delay limitations of
each Fast Ethernet collision domain. (A collision domain is the longest path between any two terminal
devices; e.g., a terminal, switch, or router.) The 512-Bit Rule determines the maximum length of cable
permitted by calculating the round-trip delay in bit-times (BT) of a particular collision domain. If the result is
less than or equal to 512 BT, the path is good.
Flow Control
The process of adjusting the flow of data from one device to another ensures that the receiving device can
handle all the incoming data. This is particularly important where the sending device is capable of
transmitting data much faster than the receiving device can accept it.
Distance Extension
The M/E-PSW-FX-02 media converters can segment one (1) 10Base-T copper Ethernet and/or 100Base-
TX copper Fast Ethernet, and one (1)100Base-FX fiber Fast Ethernet collision domain:
• In a half-duplex Ethernet or Fast Ethernet environment, the M/E-PSW-FX-02 media converters extend
network distances by segmenting collision domains so that the 512-Bit Rule applies separately to each
collision domain.
• In a full-duplex Ethernet or Fast Ethernet environment, the M/E-PSW-FX-02 media converters extend
network distances to the physical cable limitations imposed by the selected twisted-pair copper fiber
cables.
Rate Conversion
The M/E-PSW-FX-02 media converters allow connection of 10Mb/s terminal devices on a 10Base-T
legacy Ethernet copper network to 100Mb/s terminal devices on a 100Base-TX Fast Ethernet copper
network and/or to 100Mb/s terminal devices on a 100Base-FX Fast Ethernet fiber network.

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Far-End Fault
When a fault occurs on an incoming fiber link (1), the media converter transmits a Far-End Fault signal on
the outgoing fiber link (2). In addition, the Far-End Fault signal also activates the Link Pass-Through,
which in turn, disables the link on the copper portion of the network (3) and (4).
Optic and Cable Specifications
The physical characteristics must meet or exceed IEEE 802.3™ specifications.
Fiber Optic Specs
Bit Error Rate: <10-9
Single mode fiber (recommended): 9 µm
Multimode fiber (recommended): 62.5/125 µm
Multimode fiber (optional): 100/140, 85/140, 50/125 µm
M/E-PSW-FX-02 1300nm multimode (ST)
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -30.0 dBm max: -14.0 dBm
Link Budget: 11.0 dB
M/E-PSW-FX-02 (SC) 1300 nm multimode
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -30.0 dBm max: -14.0 dBm
Link Budget: 11.0 dB
M/E-PSW-FX-02 (SM) 1310 nm single mode
Fiber Optic Transmitter Power: min: -15.0 dBm max: -8.0 dBm
Fiber Optic Receiver Sensitivity: min: -31.0 dBm max: -8.0 dBm
Link Budget: 16.0 dB
The fiber optic transceivers on this device meet Class I Laser safety requirements per IEC825/CDRH
standards and comply with 21 CFR1040.10 and 21CFR1040.11

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Copper Cable Specs
Category 3: Minimum requirement for 10 Mbps Operation
Gauge: 24 to 22 AWG
Attenuation: 11.5 dB/100m @ 5-10 MHz
Maximum Cable Distance: 100 meters
Category 5: Minimum requirement for 10 Mbps Operation
Gauge: 24 to 22 AWG
Attenuation: 22 dB/100m @ 100 MHz
Maximum Cable Distance: 100 meters
•Straight-through or Cross-over twisted-pair cable may be used.
•Shielded (STP) or unshielded (UTP) twisted-pair cable may be used.
•Pins 1 & 2 and 3 & 6 are the two active pairs in an Ethernet network.
•Use only dedicated wire pairs for active pins (e.g., blue/white, orange/white & white/orange, etc.)
•Do not use flat or silver satin wire.

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4 Troubleshooting
If the media converter fails, isolate and correct the failure by determining the answers to the following
questions, and then taking the indicated action:
1. Is the power LED illuminated and did the TX and FX LEDs turn ON and then turn OFF?
NO
•Is the power adapter the proper type of voltage and cycle frequency for the AC outlet?
•Is the power adapter properly installed in the media converter and in the outlet?
•If PoE, is the RJ-45 jack receiving power from the input device?
•Contact Technical Support: see Contact Us below.
YES
•Proceed to step 2.
2. Are the TX and FX-Link/ACT LEDs lit on the RJ-45 port ?
NO
•Check the copper cables for proper connection.
•Check the fiber cables for proper connection.
•Contact Technical Support: see Contact Us below.
YES
•Contact Technical Support: see Contact Us below.
Contact Us
•Lantronix website : https://www.lantronix.com
•Product Index : https://www.lantronix.com/resources/product-index/
•Application Notes : https://www.lantronix.com/resources/app-notes/
•Tech Support : https://www.lantronix.com/technical-support/
•How to buy : https://www.lantronix.com/buy/
•Online store : http://store.lantronix.com/
•Contact Us : https://www.lantronix.com/about-us/contact/
Note that this manual may provide links to third party websites for which Lantronix is not responsible.

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Compliance Information
Declaration of Conformity
Manufacture’s Name: Lantronics, Inc.
Manufacture’s Address: 48 Discovery, Suite 250, Irvine, California 92618 USA
Declares that the product(s):
M/E-PSW-FX-02, M/E-PSW-FX-02(SC), and M/E-PSW-FX-02(SM)
Conform to the following Product Regulations:
FCC Part 15 Class A, EN 55032:2012, EN 55024:2010
Directive 2014/30/EU, Directive 2015/863/EU
Low-Voltage Directive 2014/35/EU
IEC /EN 60950-1:2006+A2:2013
2011/65/EU EN 50581:2012
With the technical construction on file at the above address, this product carries the CE Mark
I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive(s)
and Standard(s).
Place: Irvine, California
Date: April 27, 2022
Signature:Fathi Hakam
Full Name: Fathi Hakam
Position: Vice President of Engineering
FCC Regulations
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which case the
user will be required to correct the interference at the user's own expense.
Canadian Regulations
This digital apparatus does not exceed the Class A limits for radio noise for digital apparatus set out on
the radio interference regulations of the Canadian Department of Communications.
Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de la Class A prescrites dans le Règlement sur le brouillage radioélectrique édicté
par le ministère des Communications du Canada.

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European Regulations
Warning
This is a Class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
Achtung !
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses
Gerätes Rundfunkstörungen auftreten. In diesem Fäll is der Benutzer für Gegenmaßnahmen
verantwortlich.
Attention !
Ceci est un produit de Classe A. Dans un environment domestique, ce produit risque de créer des
interférences radioélectriques, il appartiendra alors à l'utilsateur de prende les measures spécifiques
appropriées.
In accordance with European Union Directive 2002/96/EC of the European Parliament and
of the Council of 27 January 2003, Lantronix will accept post usage returns of this product
for proper disposal. The contact information for this activity can be found in the 'Contact Us'
portion of this document.
CAUTION: RJ connectors are NOT INTENDED FOR CONNECTION TO THE PUBLIC
TELEPHONE NETWORK. Failure to observe this caution could result in damage to the
public telephone network.
Der Anschluss dieses Gerätes an ein öffentlickes Telekommunikationsnetz in den EGMitgliedstaaten
verstösst gegen die jeweligen einzelstaatlichen Gesetze zur Anwendung der Richtlinie 91/263/EWG zur
Angleichung der Rechtsvorschriften der Mitgliedstaaten über Telekommunikationsendeinrichtungen
einschliesslich der gegenseitigen Anerkennung ihrer Konformität.

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Lantronix Corporate Headquarters
48 Discovery, Suite 250
Irvine, CA 92618, USA
Toll Free: 800-526-8766
Phone: [phone]
Fax: [phone]
Technical Support
https://www.lantronix.com/technical-support/
Sales Offices
For a current list of our domestic and international sales offices, go to the Lantronix web site at
www.lantronix.com/about/contact.