Lantronix SISGM1040-284-LRT User manual

SISGM1040-284-LRT
Managed Hardened Gigabit Ethernet Switch
(8) 10/100/1000Base-T Ports + (4) 100/1000Base-X SFP Slots
Install Guide
Part Number 33808
Revision E October 2022

Lantronix SISGM1040-284-LRT Install Guide
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Intellectual Property
© 2022 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.
Patented: https://www.lantronix.com/legal/patents/; additional patents pending.
Warranty
For details on the Lantronix warranty policy, see 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
+1.952.358.3601, 1.800.260.1312, or 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.
Description of Changes
9/9/20 B
FW v7.10.2667: update install procedure and add MRP, update ordering information, add UL
certification, note that Power Supply is not included (sold separately), delete Power Supply
25083, add SPS-UA12DHT and PS-DC-DUAL Series, add Auto-Logout timeout; update specs
and warranty, add RADIUS and TACACS Key encrypt on Show Running Config, add Unified
API support, update Web UI timeout, and modify System Information Name display.
3/24/21 C
Note to adjust the power supply output voltage if the switch won’t power up. Update
Ordering Information and Software Features.
7/16/21
D
Add UL listed, IEC62368-1/EN62368-1 and NEMA TS-2.
10/4/22 E
Initial Lantronix rebrand. FW v 7.20.0121: Add ConsoleFlow Cloud and LPM support and add
First Time Wizard. Update Radius server in Web UI. Add DHCP per port function to select a
specific IP interface. Change default settings for SNMP mode and Auth Method. Add DHCP
option 229 support. Add encryption in Firmware file.

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Safety Warnings and Cautions
These products are not intended for use in life support products where failure of a product could reasonably be
expected to result in death or personal injury. Anyone using this product in such an application without express
written consent of an officer of Lantronix does so at their own risk and agrees to fully indemnify Lantronix for any
damages that may result from such use or sale.
Attention: This product, like all electronic products, uses semiconductors that can be damaged by ESD
(electrostatic discharge). Always observe appropriate precautions when handling.
Note: Emphasizes important information or calls your attention to related features or instructions.
Caution: Alerts you to a potential hazard that could cause loss of data or damage the system or
equipment.
Warning: Alerts you to a potential hazard that could cause personal injury.

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Contents
Safety Warnings and Cautions.....................................................................................................................................3
Introduction...................................................................................................................................................................6
Features .......................................................................................................................................................................6
Benefits ........................................................................................................................................................................6
Ordering Information ....................................................................................................................................................7
Specifications ...............................................................................................................................................................7
Software Features ........................................................................................................................................................9
DC Power Consumption.............................................................................................................................................12
Application Example...................................................................................................................................................13
About This Manual .....................................................................................................................................................13
Related Manuals ........................................................................................................................................................14
Laser Safety Instructions............................................................................................................................................14
Front Panel.................................................................................................................................................................14
LED Descriptions....................................................................................................................................................15
Installation ..................................................................................................................................................................19
Package Checklist..................................................................................................................................................19
DIN Rail Mounting ..................................................................................................................................................20
Wall Mounting.........................................................................................................................................................21
Ethernet Interface Connecting (RJ45 Ethernet).....................................................................................................22
Ethernet Interface Connecting (Fiber, SFP)...........................................................................................................23
Alarm Relay (Digital Input and Digital Output Relay) .............................................................................................24
Connecting the DI/DO (Digital Input / Digital Output) Relay ............................................................................. 24
Digital Input and Digital Output Use Case ........................................................................................................ 25
Ground Screw ........................................................................................................................................................26
RESET Button ........................................................................................................................................................26
Console Port...........................................................................................................................................................26
DIP Switch (Ring Settings) .....................................................................................................................................27
Power Supply Information ......................................................................................................................................27
Power Supply Warnings & Cautions !! ...................................................................................................................27
Power Supply Specifications..................................................................................................................................28
Industrial Power Supply 25165 ......................................................................................................................... 29
Industrial Power Supply 25130 ......................................................................................................................... 30
PS-DC-DUAL-5624T Stand-Alone Hardened Power Supply............................................................................ 32
SPS-UA12DHT Industrial Power Supply........................................................................................................... 33
Power Supply Mounting Instructions......................................................................................................................34
Power Supply Installation.......................................................................................................................................35
Connecting Power ..................................................................................................................................................36
Connect and Log In via the CONSOLE Port ..........................................................................................................37
CLI Initialization and Configuration (Optional) .......................................................................................................37
Connect and Log In via a Web Browser.................................................................................................................37
Connect the Switch to a Windows 10 PC ..............................................................................................................38
Troubleshooting..........................................................................................................................................................39
Box Label and Device Label ..................................................................................................................................40
Record Device and System Information ................................................................................................................40
Compliance Information .........................................................................................................................................41

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User Information................................................................................................................................................ 42
Innovation, Science and Economic Development Canada ICES-003 Compliance Label: ............................... 42
RoHS, WEEE, and Environmental Programs ................................................................................................... 42
Declaration of Conformity.................................................................................................................................. 42
Cautions and Warnings ..................................................................................................................................... 42
Appendix A. Rapid Ring Operation ............................................................................................................................43
Rapid Ring Operation.............................................................................................................................................43
Hardware Setting and Status for Rings..................................................................................................................43
RM and RC LED Descriptions........................................................................................................................... 44

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Introduction
The SISGM1040-284-LRT industrial L2+ managed GbE switch is a next generation industrial grade Ethernet switch
offering powerful L2 and basic L3 features with better functionality and usability. In addition to the extensive
management features, the SISGM1040-284-LRT also provides carrier Ethernet features such as OAM/CF,
ERPS/EPS, and PTPv2, making it suitable for industrial and carrier Ethernet applications.
The SISGM1040-284-LRT delivers eight 10M/100M/1G RJ45 ports, four GbE SFP ports and one RJ45 console port.
SISGM1040-284-LRT provides high hardware performance and environment flexibility for industrial applications.
The embedded Device Managed System (DMS) features provide ease-of-use, configuration, installation, and
troubleshooting in video surveillance, wireless access, and other industrial applications. The SISGM1040-284-LRT
delivers management simplicity, great user experience, and low total cost of ownership.
Features
Built in Device Management System (DMS)
ConsoleFlow Cloud and LPM support
Rapid Ring and Ring-To-Ring
ITU-T G.8031 Ethernet Linear Protection Switching (EPS)
ITU-T G.8032 Ethernet Ring Protection Switching (ERPS)
Media Redundancy Protocol (MRP)
IEEE 1588v2 PTP
IEEE 802.3ah OAM
IEEE 802.1ag CFM (ITU-T Y.1731 Performance monitoring)
DHCP Server
IEEE 802.3az Energy Efficient Ethernet for green Ethernet applications
IPv4/IPv6 L3 static route
•8-port 10/100/1000Base-T and 4 100/1000 SFP slots
•Power input range: dual 12-48VDC inputs
•Hardened temperature : - 40 to +75°C
•Din Rail Mounting
•CE/FCC/LVD/UL/ IEC62368-1/EN62368-1 for EMI and Safety compliance
•5 Year Warranty
Benefits
Feature-rich specifications to support various applications: The switch delivers extensive industrial and
carrier grade functionalities, including R-Ring, ITU-T G.8031, ITU-T G.8032, IEEE 1588v2 PTP, OAM, CFM,
etc. It also has enhanced L2/L3 features for better manageability and usability. It offers better
price/performance ratio in industrial applications and provides secure and reliable functionalities for
metro/carrier Ethernet deployments.
Exceptional precision with IEEE 1588v2 PTP: The switch performs IEEE1588v2 PTP with transparent clock
capability, implementations in hardware, so there is no performance penalty on packet processing.
The hardware architecture ensures low latency and high time accuracy, which is critical for delay-sensitive
financial and mobile applications.

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Superior reliability with OAM and CFM for Service Assurance, which is provided through a rich feature set
of operations, administration, and maintenance (OAM) functions. The device also offers standards-based
fault and performance management with adherence to 1731 PM and 802.1ag connectivity fault
management (CFM) standards. These features contribute to significant reduction in operational
expenditures and allow for troubleshooting without expensive truck rolls.
Easy to install, configure and troubleshoot with DMS. The Device Management System provides embedded
functions to facilitate devices management anytime, anywhere. Its user-friendly interface helps you
manage devices intuitively. It supports various IP device types (e.g., PC, IP phone, IP camera, WAP) to
enhance manageability and save time/cost during installation and maintenance.
Lower Total Cost of Ownership (TCO) with Energy-efficient design: The switch is designed to help save
power with Energy Efficient Ethernet (IEEE 802.3az). It can be used to build a green Ethernet networking
environment.
Ordering Information
SKU
Description
SISGM1040-284-LRT
Hardened Managed Switch, (8) 10/100/1000Base-T + (4) 100/1000Base-X SFP Slots
Optional Accessories (Order Separately)
Power Supply 25165
Industrial DIN Rail Mounted Power Supply.
ConsoleFlow
Centralized Management Software for PoE Switches, Remote Environment
Management (REM) and IoT Gateway products. Sold separately.
Power Supply 25130
Industrial DIN Rail Mounted Power Supply; 48VDC, 39.8Watts.
SPS-UA12DHT
Power Supply, Input: 90-264 VAC, 12VDC, 18 Watts output
PS-DC-DUAL-5624T
PS-DC-DUAL Series; Input: 100-240 VAC; 56VDC + 24V output
SFPs
See Lantronix full line of SFP transceivers on our SFP webpage.
EDCA-DIO-01
Enclosure Door Contact Alarm
OCA-P181610
18x16x10” Polycarbonate Enclosure
WMBH-01
Wall Mount Bracket
DRBH-01
Din Rail Bracket
Specifications
Port Configuration
Total Ports
RJ45 (10M/100M/1G)
Uplinks (100M/1G)
Console
Ring Mgmt.
DI/DO
12
8
4 SFP
RJ45
DIP Switch
1/1
Hardware Performance
Forwarding
Capacity (Mpps)
Switching
Capacity (Gbps)
Mac Table
(K)
Jumbo Frames
(Bytes)
17.856
24
8
9216

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Environmental
Operating Temperature Storage Temperature
Operating
Humidity
Altitude
Fahrenheit
Centigrade
Fahrenheit
Centigrade
5% to 95%
non-condensing
Feet
Meters
-40 to +167
⁰
-40 to +75
⁰
-40 to +185
⁰
-40 to +85
⁰
< 10000
<3000
Dimension, Weights, Mounting
Dimension (WxHxD)
Weight
Mounting Type
Millimeters
Inches
Kilograms
Pounds
62 x 135 x 130 2.4 x 5.3 x 5.1
0.66 (switch)
0.975 (switch + pkg.)
1.45 (switch)
2.15 (switch + pkg.)
DIN rail
Voltage and Frequency
Primary Power Supply - DC Input Voltage
DC Nominal 12/24/48 VDC dual inputs
DC Operating Range 12 to 48 VDC
Certifications
Regulatory Compliance
EMS
EN61000-4-2 ESD, EN61000-4-3 RS, EN61000-4-4 EFT, EN61000-4-5 Surge, EN61000-4-6
CS, EN61000-4-8 PFMF
EMI
FCC Part 15 Class A
Safety
CE, LVD, UL Listed, IEC62368-1/EN62368-1
Environmental
NEMA TS-2-2016 (Power, Transients, Temperature Test)
Mechanical Stability
Vibration
IEC 60068-2-6
Shock
IEC 60068-2-27
Freefall
IEC 60068-2-32

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Software Features
Ring Management
ITU-T G.8031
Supports ITU-T G.8031 Ethernet Linear Protection Switching
ITU-T G.8032
Supports ITU-T G.8032 Ethernet Ring Protection Switching
Rapid Ring
Enables self-recovery time in less than 20ms
MRP
The Media Redundancy Protocol data network protocol standardized IEC 62439-2
allows rings of Ethernet switches to overcome a single failure with recovery time
much faster than with Spanning Tree Protocol.
Device Management System (DMS)
Graphical
Monitoring

Topology view: Intuitive way to configure and manage switches and devices
visually
Floor view: Drag and drop devices to easily plan IP device installation locations
onto the custom uploaded floor images.
Map view: Enhance efficiency; drag and drop devices and monitor surroundings on
Google Maps
Find my Switch
Search for and manage your switches quickly.
Traffic Monitor Display visual chart of network traffic of all devices and monitor all ports at any time
Troubleshooting 
Network diagnostic between Master (Controller) switch and devices
Check Connection status and Cable status quickly and easily
Ethernet OAM
IEEE 802.3ah OAM Supports Operations, Administration & Management
IEEE 802.1ag & ITU-T
Y.1731 Flow OAM

Supports IEEE 802.1ag Ethernet CFM (Connectivity Fault Management)
Supports ITU-T Y.1731 Performance Monitoring
Supports performance management and link management through IEEE 802.3ah
and IEEE 802.1ag (Y.1731)
Layer 2 Switching
Spanning Tree
Protocol (STP)

Standard Spanning Tree 802.1d
Rapid Spanning Tree (RSTP) 802.1w

Multiple Spanning Tree (MSTP) 802.1s
Trunking 
Link Aggregation Control Protocol (LACP) IEEE 802.3ad

Up to 6 groups and up to 4 ports per group
VLAN

Port-based VLAN
802.1Q tag-based VLAN
MAC-based VLAN
Management VLAN
Private VLAN Edge (PVE)
Q-in-Q (double tag) VLAN
Voice VLAN

GARP VLAN Registration Protocol (GVRP)
DHCP Relay 
Relay of DHCP traffic to DHCP server in different VLAN.

Works with DHCP Option 82
IGMP v1/v2/v3
IGMP limits bandwidth-intensive multicast traffic to only the requesters.

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Snooping
Supports 1024 multicast groups
IGMP Querier
IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the
absence of a multicast router
IGMP Proxy
IGMP snooping with proxy reporting or report suppression actively filters IGMP
packets in order to reduce load on the multicast router
MLD v1/v2 Snooping
Delivers IPv6 multicast packets only to the required receivers
Multicast VLAN
Registration (MVR)
Uses a dedicated manually-configured VLAN, called the multicast VLAN, to forward
multicast traffic over Layer 2 network in conjunction with IGMP snooping.
Layer 3 Switching
IPv4 Static Routing
IPv4 Unicast: Static routing
IPv6 Static Routing
IPv6 Unicast: Static routing
Security
Secure Shell (SSH)
SSH secures Telnet traffic in or out of the switch, SSH v1 and v2 are supported
Secure Sockets Layer
(SSL)
SSL encrypts the http traffic, allowing advanced secure access to the browser-based
management GUI in the switch
IEEE 802.1X

IEEE802.1X: RADIUS authentication, authorization and accounting, MD5 hash, guest
VLAN, single/multiple host mode and single/multiple sessions
Supports IGMP-RADIUS based 802.1X

Dynamic VLAN assignment
Layer 2 Isolation
Private VLAN Edge
PVE (also known as protected ports) provides L2 isolation between clients in the same
VLAN. Supports multiple uplinks.
Port Security Locks MAC addresses to ports, and limits the number of learned MAC address
IP Source Guard
Prevents illegal IP address from accessing to specific port in the switch
RADIUS/ TACACS+
Supports RADIUS and TACACS+ authentication. Switch as a client
Storm Control
Prevents traffic on a LAN from being disrupted by a broadcast, multicast, or unicast
storm on a port
DHCP Snooping
A feature acts as a firewall between untrusted hosts and trusted DHCP servers
ACLs
Supports up to 256 entries. Drop or rate limitation based on:
Source and destination MAC, VLAN ID or IP address, protocol, port,
Differentiated services code point (DSCP) / IP precedence
TCP/ UDP source and destination ports
802.1p priority
Ethernet type
Internet Control Message Protocol (ICMP) packets

TCP flag
Loop Protection
Prevents unknown unicast, broadcast and multicast loops in Layer 2 switching
configurations.
Rate-limiting
Protection mechanism to protect your devices from brute-force downloading
Quality of Service
Hardware Queue
Supports 8 hardware queues

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Scheduling 
Strict priority and weighted round-robin (WRR)

Queue assignment based on DSCP and class of service
Classification

Port based
802.1p VLAN priority based
IPv4/IPv6 precedence / DSCP based
Differentiated Services (DiffServ)

Classification and re-marking ACLs
Rate Limiting

Ingress policer
Egress shaping and rate control

Per port
Management
HW Monitoring
Temperature Detection and Alarm
HW Watchdog
Supported to resume operation from CPU hang up
IEEE 1588v2 PTP
Support IEEE 1588 v2 PTP (Precision Time Protocol)
DHCP Server
Support DHCP server to assign IP to DHCP clients
Remote Monitoring
(RMON)
Embedded RMON agent supports RMON groups 1,2,3,9 (history, statistics, alarms, and
events) for enhanced traffic management, monitoring and analysis
Port Mirroring
Traffic on a port can be mirrored to another port for analysis with a network analyzer
or RMON probe. Up to n-1 (where nis Switch’s Ports) ports can be mirrored to single
destination port. A single session is supported.
UPnP
The Universal Plug and Play Forum is an industry group of companies working to
enable device-to-device interoperability by promoting Universal Plug and Play
s-Flow
The industry standard for monitoring high speed switched networks. It gives complete
visibility into the use of networks enabling performance optimization,
accounting/billing for usage, and defense against security threats
IEEE 802.1ab (LLDP)

Used by network devices for advertising their identities, capabilities, and neighbors
on an IEEE 802ab local area network

Support LLDP-MED extensions
Web GUI Interface
Built-in switch configuration utility for browser-based device configuration,
monitoring, diagnostics, etc.
CLI
For users to configure/manage switches in command line modes
Dual Image
Independent primary and secondary images for backup while upgrading
SNMP
SNMP version1, 2c and 3 with support for traps, and SNMP version 3 user-based
security model (USM)
Firmware Upgrade Web browser upgrade (HTTP/ HTTPs), TFTP, and CLI
NTP
Network Time Protocol (NTP) is a networking protocol for clock synchronization
between computer systems over packet-switched
Other Management

HTTP/HTTPs; SSH
DHCP Client/ DHCPv6 Client
Cable Diagnostics
Ping
Syslog

IPv6 Management

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ConsoleFlow and LPM
ConsoleFlow
•Auto-discovery of devices connected to the switch interfaces
•Perform on-demand backup and restore of device configuration
•Perform secure remote device firmware upgrades
•
Lantronix-hosted public cloud offering
LPM
Lantronix Provisioning Manager allows easy administration of Lantronix devices.
LPM lets you quickly update firmware, update configuration, and provision one or
more devices simultaneously.
MTBF
GB, GC - Ground Benign, Controlled 25°C
951,258 Hrs.
GB, GC - Ground Benign, Controlled 75°C
193,332 Hrs.
DC Power Consumption
* Measured DC power consumption after 60 minutes under full loading with wire speed forwarding.
12 VDC Input
Device Status Operation
Interface
DC Current
Consumption
(A)
DC Voltage
(V) DC Power Consumption (W)
Non-loading None 0.43 12 5.16
Standby mode 1G TP Port x 8
1G SFP Port x 4 0.77 12 9.24
Full-loading
60 minutes later
1G TP Port x 8
1G SFP Port x 4 0.79 12 9.48
24 VDC Input
Device Status Operation
Interface
DC Current
Consumption
(A)
DC Voltage
(V) DC Power Consumption (W)
Non-loading None 0.22 24 5.28
Standby mode 1G TP Port x 8
1G SFP Port x 4 0.37 24 8.88
Full-loading
60 minutes later
1G TP Port x 8
1G SFP Port x 4 0.38 24 9.12

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48 VDC Input
Device Status Operation
Interface
DC Current
Consumption
(A)
DC Voltage
(V) DC Power Consumption (W)
Non-loading None 0.13 48 6.24
Standby mode 1G TP Port x 8
1G SFP Port x 4 0.21 48 10.08
Full-loading
60 minutes later
1G TP Port x 8
1G SFP Port x 4 0.22 48 10.56
Application Example
The SISGM1040-284-LRT switch is shown below in Industrial IOT and Surveillance applications.
About This Manual
This manual describes how to install, configure, and troubleshoot the switch, including how to:
•Install the switch.
•Check switch status by reading the LED behavior.
•Reset or restore the switch to factory defaults.
•Initially configure the switch.
•Troubleshoot switch installation.

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Related Manuals
SISGM1040-284-LRT Quick Start Guide, 33807
SISGM1040-284-LRT Web User Guide, 33809
SISGM1040-284-LRT CLI Reference, 33810
SISGM1040-284-LRT API User Guide, 33827
Power Supply manuals (model specific)
Release Notes (version specific)
For Lantronix Documentation, Firmware, App Notes, etc. go to https://www.lantronix.com/technical-support/
Note that this manual provides links to third party web sites for which Lantronix is not responsible.
Laser Safety Instructions
When a connector is removed during installation, testing, or servicing, or when an energized fiber is broken, a risk
of ocular exposure to optical energy that may be potentially hazardous occurs, depending on the laser output
power. The primary hazards of exposure to laser radiation from an optical-fiber communication system are:
•Damage to the eye by accidental exposure to a beam emitted by a laser source.
•Damage to the eye from viewing a connector attached to a broken fiber or an energized fiber.
Front Panel
The switch front panel provides all the connections, controls and LED indicators as shown and described below.

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LED Descriptions
The front panel LEDs provide switch status as follows:
Power LEDs (P1 and P2): indicate whether the switch is powered up correctly.
SYS (System) LED: indicates if the system is ready or not.
ALM (Alarm) LED: indicates if the system is operating normally.
RM (Ring Master) LED: indicates if Ring Master(s) or Slave is enabled.
RC (Rapid Chain) LED: indicates the status of the Rapid-Chain.
Port Status LEDs: indicate the current status of each port. Check these LEDs to
determine the port status.
The following tables details the functions and descriptions of these LED indicators.
Table 1: Power LEDs
LED Color State Description
P1
(Power1) Green
On The switch is powered ON correctly.
Off The switch is not receiving power from power1.
P2
(Power2) Green
On The switch is powered ON correctly.
Off The switch is not receiving power from power2.
Table 2: System LED
LED Color State Description
SYS
(System) Green
On
The switch is ready.
Off The switch is not ready.
Table 3: Alarm LED
LED Color State Description
ALM
(Alarm) Red
On
An abnormal state, such as temperature, voltage, or DC
power1/2 was detected in the switch.
Off The system is normal.

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ALM (Alarm) LED
The ALM (Alarm) LED lights if the monitored temperature or internal voltages are exceeded.
Issue critical stage for High / Low Voltage alarm (Power A or B Voltage)
Lit Alarm LED in RED Color if Test-point (max) < Volts or if Test-point (min) < Volts.
V1 (PHY, TTL, LED, SFP): (max: 3.465V, min: 3.135V) (+- 5%)
V2 (MAC): (max: 2.625V, min: 2.375V) (+- 5%)
V3 (MAC, DDR): (max: 1.575V, min: 1.425V) (+- 5%)
V4 (MAC): (max: 1.05V, min: 0.95V) (+- 5%)
Issue critical stage for High Temperature alarm: Lit Alarm LED in RED Color if Test-point (max) < temperature
max: 100'C.
You can view temperature and voltage settings at Monitor > Port > SFP Detail Info.
You can you view and configure current trap event severity parameters via the Web Interface at Configuration >
System > Alarm Notification > Trap Event Severity. See the Web User Guide for more information.

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Check the port status by reading the LED behaviors per the table below.
Table 4: Port Status LEDs
LED Color State Description
RJ45
Ports
UP *
Green On
The port is enabled and has established a link to the connected device, and
the connection speed is 1000Mbps.
Green Blinking
The port is transmitting/receiving packets, and the connection speed is
1000Mbps.
Amber On
The port is enabled and has established a link to the connected device, and
the connection speed is 10/100Mbps.
Amber Blinking
The port is transmitting/receiving packets, and the connection speed is
10/100Mbps.
-- Off
The port has no active network cable connected, or it has not established a
link to a connected device. Otherwise, the port may have been disabled via
the switch user interface.
SFP
Ports
Green On
The port is enabled and has established a link to a connected device, and the
connection speed is 1000Mbps.
Green Blinking
The port is transmitting/receiving packets, and the connection speed is
1000Mbps.
Amber On
The port is enabled, has established a link to the connected device, and the
connection speed is 100Mbps.
Amber Blinking
The port is transmitting/receiving packets, and the connection speed is
100Mbps.
-- Off
The port has no active network cable connected, or it has not established a
link to a connected device. Otherwise, the port may have been disabled via
the switch user interface.

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Table 5: RM (Ring Master) and RC (Rapid-Chain) LEDs
LED
RM (Ring Master)
RC (Rapid-Chain)
Off
disable
disable
Green
Ring Master is Enabled
Rapid-Chain (Active path)
Amber
Ring Slave is Enabled
Rapid-Chain (Backup path)
Blink Amber Error: More than one Master in this ring.
Error: Rapid-Chain Switch did not find the
other Rapid-Chain Switch partner (active &
backup).

Lantronix SISGM1040-284-LRT Install Guide
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Installation
This section describes switch mounting, grounding, cable connection, configuration, and power connection.
Caution: Make sure you have read “Safety Warnings and Cautions” on page 2, “Safety Instructions” on page 17,
and “Power Supply Warnings & Cautions !!“ on page 27 before proceeding.
Package Checklist
Verify that the box contains the following items:
□One Managed Ethernet Switch
□One DIN-Rail Clip
□Three Screws for DIN-Rail Clip
□One DB9F to RJ45 Console cable
□One printed Quick Start Guide
□One documentation postcard
Contact your sales representative if you have not received these items. Save the packaging for possible future
use. Note that a Power Supply is not included (sold separately).

Lantronix SISGM1040-284-LRT Install Guide
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DIN Rail Mounting
Mounting steps:
1. Screw the DIN-Rail bracket on with the bracket and screws in the accessory kit.
2. Hook the unit over the DIN-Rail.
3. Push the bottom of the unit towards the DIN-Rail until it snaps into place.