Perle IRG5540 Manual

Perle IRG 5540/5540+/5541/5541+
Hardware Installation Guide
Updated: June 2023
Version A.06.13.2023
Document Part#:5500450-10
www.perle.com

Preface
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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Preface
Audience
This guide is for the network or computer technician responsible for installing the Perle
IRG5540/5540+/5541/5541+ router also generically referred to as the IRG554x within this document.
All “+” models support worldwide global coverage for LTE. Models IRG5541/5541+ also have inte-
grated Wireless LAN 2.4/5 GHz capabilities. Familiarity with the concepts and terminology of LTE,
GNSS, Ethernet, and LAN (local area networks) is required.
Purpose
Perle routers provide users, networking equipment, as well as M2M & IoT appliances with network
connectivity for fixed locations (i.e. buildings, POS, Kiosks, …etc.) and mobile (i.e. vehicle, trains,
robots) applications. In vehicular applications, the router provides connectivity and does not interact
with the vehicle’s operation or vehicle operators.
This document describes the hardware and physical characteristics of the Perle IRG554x router. It
covers hardware features as well as installation and operation. This document does not cover how to
configure your Perle IRG554x router. Information to configure your Perle router can be found in the
Perle IRG7000/5000 5G/LTE Router User’s Guide and the Perle IRG7000/5000 5G/LTE Router
Command Line Reference Guide on the Perle website. Quick Start information can be found in the
554x that comes with your product.
Key Features
• Supports bridging/switching, and routing
• LTE coverage spanning 21 frequency bands in North America/EMEA (IRG5541/5541+)
• LTE coverage spanning 30 frequency bands for global coverage (IRG5541/5541+)
• Fully automatic network switching supporting dual network SIMs
• Routing with Primary/Backup route
• LTE and VPN Fail-over
• Provides network connectivity via LTE, Ethernet, and USB-C
• Active GPS for tracking equipment
• Low voltage Standby function to prevent battery drain
• One GPIO pin for remote monitoring/control and one IGN (Ignition) pin
• Two digital Inputs and one Relay contact
• RS485 half-duplex capabilities
• Wireless LAN 2.4/5 GHz support (models IRG5541/5541+)
• Security via remote authentication (Radius/RadSec and TACACS+)
• Processor Power Saving Mode–this feature optimizes idle power consumption, saving
energy by reducing performance where possible
• Power Saving Features including; LED power saving mode, Smart Standby Mode, Power
saving strategies such as turning off unused interfaces (USB, Serial, Ethernet), turning off
GPS and adjusting the Ethernet rate
• Meets industry-grade certifications

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Additional Documentation
Document Description
Perle IRG7000/5000 5G/LTE Router
User’s Guide
User’s guide explaining how to configure the IRG554x
features using the Web Manager application. New users
should use this method to configure the router.
Perle IRG7000/5000 5G/LTE Router
Command Line Reference Guide
Command Line Interface Reference Guide using CLI
commands to configure the IRG554x (this is an advanced
way to configure the router).

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Document Conventions
This document contains the following conventions:
Most text is presented in the typeface used in this paragraph. Other typefaces are used to help you
identify certain types of information. The other typefaces are:
Note: Means reader take note: notes contain helpful suggestions.
Caution: Means reader be careful. In this situation, you might perform an action that could result in
equipment damage or loss of data.
Warning: IMPORTANT SAFETY INSTRUCTIONS
Means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be
aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing
accidents.
Important Notice
Due to the nature of wireless communications, transmission and reception of data can never be
guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant
delays or losses of data are rare when cellular devices such as the Perle IRG554x Series Routers are
used in a normal manner with a well-constructed network. The Perle IRG554x Series Routers should
not be used in situations where failure to transmit or receive data could result in damage of any kind
to the user or any other party, including but not limited to personal injury, death, or loss of property.
Perle accepts no responsibility for damages of any kind resulting from delays or errors in data trans-
mitted or received using our products.
Safety and Hazards
The driver or operator of any vehicle should not operate the IRG554x while in control of a vehicle.
Doing so will detract from the driver or operator's control and operation of that vehicle. The IRG554x
is Listed to UL121201 and CSA C22.2 No. 213 and are suitable for use in Class I, Division 2, Groups
A, B, C and D Hazardous Locations.
The following warnings and instructions apply:
Limitation of Liability
The information in this manual is subject to change without notice and does not represent a commit-
ment on the part of Perle for any and all direct, indirect, special, general, incidental, consequential,
punitive or exemplary damages including, but not limited to loss of profits or revenue or anticipated
profits or revenue arising out of the use or inability to use any Perle IRG554x series router even if
Perle has been advised or the possibility of such damages or they are
foreseeable or for claims by any third party.
Notwithstanding the foregoing, in no event shall Perle aggregate liability arising under or in connec-
tion with the Perle product, regardless of the number of events, occurrences, or claims giving rise to
liability, be in excess of the price paid by the purchaser for the Perle
product.
Copyright © 2023 Perle. All rights reserved.
Windows® is a registered trademarks of Microsoft Corporation.
Other trademarks are the property of their respective owners

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
General cautions and warnings
Warning: Power sources must be off prior to beginning the power connection steps. Read the
installation instructions before you connect the unit to its power source.
Avertissement: Les sources d'alimentation doivent être éteintes avant de commencer les étapes de
connexion d'alimentation. Veuillez lire les instructions d’installation avant de connecter l’appareil à
sa source d’alimentation.
Warning: Ensure that the voltage and current ratings of the intended power source are appropriate for
the IRG554x Series of Routers as indicated on the product label.
Avertissement: Assurez-vous que les valeurs nominales de tension et de courant de la source d'ali-
mentation prévue conviennent aux routeurs de la série IRG554x, comme indiqué sur l'étiquette du
produit.
Warning: Ensure that the installation and electrical wiring of the equipment is performed by trained
and qualified personnel and that the installation complies with all local and national electrical codes.
Avertissement: Assurez-vous que l'installation et le câblage électrique de l'équipement sont effectués
par du personnel formé et qualifié et que l'installation est conforme à tous les codes électriques locaux
et nationaux.
Warning: This equipment must be used in the matter specified by the manufacturer.
Avertissement: Cet équipement doit être utilisé dans les matières spécifiées par le fabricant.
Warning: In case of malfunction or damage, no attempts at repair should be made by the user. Do not
dismantle this product. In case of malfunction or damage, contact Perle Technical support at
https://www.perle.com/support_services/support_request.aspx
or email at
https://www.perle.com/support_services/support_request.aspx#form
Avertissement: En cas de dysfonctionnement ou de détérioration, aucune tentative de réparation ne
doit être effectuée par l'utilisateur. Ne démontez pas ce produit. En cas de dysfonctionnement ou de
dommage, contactez le support technique de Perle à l'adresse
https://www.perle.com/support_services/support_request.aspx
ou par courrier électronique à
https://www.perle.com/support_services/support_request.aspx#form
Warning: “Equipment is intended for installation in Restricted Access Area when equipment is
installed in ambient exceeding 50°C (122°F)”. The unit should be installed in a restricted access loca-
13 IEC 60417-5041 (2002-10) “WARNING: HOT
SURFACE. DO NOT
TOUCH.” / ATTENTION:
Surface chaude. Ne pas
toucher.”
14 Refer to manual/safety

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
tion where access can only be gained by service personnel or users who have been instructed about
the reasons for the restrictions applied to the location and about any precautions that shall be taken;
and access is through the use of a tool or lock and key, or any means of security, and is controlled by
the authority responsible for the location.
Avertissement: L’équipement est destiné à être installé dans une zone d’accès restreint lorsque
l’équipement est installé dans une température ambiante supérieure à 50 °C (122 °F). l'unité doit être
installée dans un emplacement à accès restreint, auquel seul le personnel de service ou les utilisateurs
informés des raisons des restrictions appliquées peuvent accéder. sur le lieu et sur les précautions à
prendre; et l'accès se fait au moyen d'un outil ou d'un verrou et d'une clé, ou de tout moyen de sécu-
rité, et est contrôlé par l'autorité responsable du lieu.
Warning: The working voltage inputs are designed for operation with Safety extra low Voltage
(SELV). Connect only to SELV circuits with voltage restrictions in line with IEC/EN 62368-1.
Avertissement: Les entrées de tension sont conçues pour fonctionner avec une tension de sécurité
très basse (SELV). Connectez uniquement aux circuits SELV avec des restrictions de tension con-
formes à IEC / EN 62368-1.
Warning: For equipment installed within the same end-product enclosure ensure leads are segregated
or insulated the leads from different circuits.
Avertissement: Pour les équipements installés dans le même boîtier de produit final, assurez-vous
que les conducteurs sont séparés ou isolés des conducteurs de circuits différents.
Hazardous Location Warnings
Specific Conditions of Use
1. The IRG5540/5540+/5541/5541+ Routers are intended for installation into an IECEx/ATEX
certified and IP54 minimum rated enclosure in accordance with IEC/EN IEC 60079-0 and accessible
only by the use of a tool. Les modèles de routeurs IRG5540/5540+/5541/5541+ sont destinés à être
installés dans un boîtier certifié IECEx/ATEX qui conforme à la norme IP54 conformément à la
norme IEC/EN IEC 60079-0 et accessible uniquement à l'aide d'un outil.
2. The IRG5540/5540+/5541/5541+ Routers shall only be used in an area of not more than
pollution degree 2, as defined in IEC/EN 60664-1. L'équipement ne doit être utilisé que dans une
zone où le degré de pollution n'est pas supérieur à 2, tel que défini dans la IEC/EN 60664-1.
Warning: These devices are open-type devices that are to be installed in an enclosure with tool
removable cover or door, suitable for the environment.
Avertissement: Ces périphériques sont des périphériques de type ouvert à installer dans un boîtier
avec un couvercle ou une porte amovible pour outils, adapté à l'environnement.
Warning: This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or only non
hazardous locations.
Avertissement: Cet équipement est adapté à une utilisation dans les zones non dangereuses de classe
I, division 2, groupes A, B, C, D
Warning: WARNING-EXPLOSION HAZARD - Do not connect or disconnect equipment unless
power has been removed or the area is known to be non-hazardous.

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Avertissement: DANGER D'EXPLOSION ET D'AVERTISSEMENT - Ne pas connecter ou decon-
necter l'équipement tant que l'alimentation n'est pas débranchée ou que la zone n'est pas dangereuse.
Warning: WARNING-EXPLOSION HAZARD - Substitution of any components on this unit may
impair suitability for Class I, Division 2.
Avertissement: DANGER DANGER D’EXPLOSION - La substitution de tout composant de cet
appareil peut compromettre l’adéquation à la Classe I, Division 2.
Warning: Power supply of the equipment must be rated appropriately (see Appendix for specifica-
tions) with limited power. Limited power means complying with one of the following requirements.
Class 2 circuit according to Canadian Electrical Code, Part 1, C22.1
Class 2 circuit according to National Electrical Code, NFPA-70
Limited Power Supply (LPS) according to EN/IEC 60950-1;
Limited-energy circuit according to EN/IEC 61010-1
Avertissement: l'alimentation de l'équipement doit être correctement dimensionnée (voir annexe
pour les spécifications) avec une puissance limitée. Une puissance limitée signifie que vous vous con-
formez à l'une des exigences suivantes.
Circuit de classe 2 selon le code électrique Canadien, partie 1, C22.1
Circuit de classe 2 selon le code électrique national NFPA-70
Alimentation électrique limitée (LPS) selon EN / IEC 60950-1;
Circuit à énergie limitée selon EN / IEC 61010-1
Warning: If this equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Avertissement: Si cet équipement est utilisé d'une manière non spécifiée par le fabricant, la protec-
tion fournie par l'équipement peut être altérée.
Warning: In case of malfunction or damage, no attempts at repair should be made. Do not dismantle
the product. All repairs need to be made by a qualified Perle representative. Contact Perle Systems
Technical support at https://www.perle.com/support_services/support_request.aspx or email at
https://www.perle.com/support_services/support_request.aspx#form
Avertissement: En cas de dysfonctionnement ou de dommage, aucune tentative de réparation ne doit
être effectuée. Ne démontez pas le produit. Toutes les réparations doivent être effectuées par un
représentant qualifié de Perle. Contactez le support technique de Perle Systems à l'adresse
https://www.perle.com/support_services/support_request.aspx ou par courrier électronique à
https://www.perle.com/support_services/support_request.aspx#form
Warning: This router is not intended for use close to the human body. The unit should be mounted in
such that Antennas are at least 20cm (8 inches) away from any person.
Avertissement: Ce routeur n’est pas destiné à être utilisé à proximité du corps humain. L’appareil
devrait être monté de façon à ce que les antennes soient à au moins 20 cm (8 po) de toute personne.
Warning: Explosion hazard. Do not connect or disconnect while the circuit is live or unless the area
is free of ignitable concentrations.

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Avertissement: Risque d'explosion. Ne pas connecter ou deconnecter le circuit est sous tension ou à
moins que la zone ne présente aucune concentration inflammable.
Warning: Do not use the USB connector unless the area is free of ignitable concentrations.
Avertissement: N'utilisez pas le connecteur USB à moins que la zone ne soit exempte de
concentrations inflammables.
Warning: Do not use the reset button unless the area is free of ignitable concentrations.
Avertissement: N'utilisez pas le bouton de réinitialisation à moins que la zone ne soit exempte de
concentrations inflammables.
RF Exposure
In accordance with FCC/IC requirements of human exposure to radio frequency fields, the radiating
element shall be installed such that a minimum separation distance of 20 cm should be maintained
from the antenna and the user's body.
Conformément aux exigences de la FCC/IC relatives à l’exposition humaine aux champs de
radiofréquences, l’élément de rayonnement doit être installé de manière à ce qu’une distance de
séparation minimale de 20 cm soit maintenue par rapport à l’antenne et au corps de l’utilisateur.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS
GUIDE ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS,
INFORMATION, AND RECOMMENDATIONS IN THIS GUIDE ARE BELIEVED TO BE
ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF
ANY PRODUCTS.
This equipment has been tested and found to comply with the limits for a Class B 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 this hardware guide may cause harmful interference to radio communications.
Modifications to this product not authorized by Perle could void the FCC approval and negate your authority to operate the
product.
Perle reserves the right to make changes without further notice, to any products to improve reliability, function, or design.
Perle, the Perle logo, and IRG554x Series of Routers are trademarks of Perle.
Copyright ©2023 Perle.
60 Renfrew Drive, Markham, Ontario, L3R 0E1, Canada
All rights reserved. No part of this document may be reproduced or used in any form without written permission from Perle.

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Publishing History
Date Revision Update Details
March 2020 A.03.23.2020 Initial release.
Dec 2020 A.12.31.2020 Updates
June 2021 A.03.06.2021 Update to label
Jan 2022 A.01.30.2022 Added IRG7440 model (5G) and updates to other
models
March 2022 A.03.17.2022 Updated Hot warning
April 2022 A.04.08.2022 Updated Restricted Access Area warning
June 2023 A.06.13.2023 Added DHCP/BOOTP (ZTP mode) support for factory
default mode

Table Of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
What You Need to Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SIM Card/s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Antenna/s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
USB-C Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ethernet LAN Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ethernet Link Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
GNSS Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
AUX/IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Relay Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Inserting the SIM card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting to the Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting to the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Female Serial Pin out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting to the USB-C port in Console Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connecting to the USB-C port as an Ethernet over USB Port. . . . . . . . . . . . . . . . . . 12
Connecting the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Reset / Factory Default / Safe Mode / DHCP/BOOTP (ZTP mode) . . . . . . . . . . . . . 14
Fast Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Managing the IRG554x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
WebManager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SNMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fast Setup Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PerleView. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
IRG554x Router Deployment Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fixed Installation without I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Recommended Vehicle Installation (Ignition Mode). . . . . . . . . . . . . . . . . . . . . . . . . 17
Fixed Installation with Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
I/O Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Pulse Counter / Digital Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
High Side Pull-up / Dry Contact Switch Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Digital Output / Low Side Current Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Digital Output / Open Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AUX /I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Pulse Counter / Digital Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
High Side Pull-up / Dry Contact Switch Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Relay Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Appendix A—Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Appendix B—Sample Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix C—Mounting the IRG554x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Appendix D—Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Appendix E—Maintaining and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Overview
1
Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Overview
The IRG554x router is a compact, rugged, fully featured communications platform for real-time wire-
less capabilities. It has multiple communication ports including Serial, Ethernet, and a USB port that
can be used as a console port or as an additional Ethernet port. It supports LTE/4G wireless solutions
for both fixed and mobile applications (IoT). The IRG5540/5541 LTE/4G supports Cat-12 technology
with peak download rates of 600 Mbps and uploads speeds of 150 Mbps. It offers global coverage of
frequency bands, supports Cat-12 technology with automatic fall-back to 3G (HSPA+, UMTS) net-
works. The IRG5540+/5541+also includes integrated GNSS receiver (GPS, GLONASS, Beidou, and
Galileo) satellite support.
Application uses:
• Monitoring and controlling remote equipment such as pipelines, meters, pumps, and valves
in energy, utility, or industrial applications
• Tracking the location of heavy equipment and assets in the field
• Providing reliable Internet access to a mobile workforce
What’s Included
The following components may be included with your product. Components will vary depending for
each model. See the Perle website for updates.
• The router
• Quick Start Guide that came with your product
• LTE SMA antenna pack (#08000120)2 WiFi antennas (#08000140)
• GPIO Cable with 4 Pin plug (#2500468)
• GPIO Cable with 8 Pin plug (#2500476)
• 12VDC/2A 4 Pin (NA-#08000150, EU #08000160, UK #08000170, #08000180) power
supply
• GNSS PASV RP-Antenna SMA/CA (#08000130) order-able from Perle
What You Need to Supply
Before you can begin, you need to have the following:
• A SIM card/s (provided by your mobile network operator)
• #1 Phillips screwdriver (if you are installing the SIM card)
• Computer or laptop computer with Ethernet interface and cable
• An Ethernet CAT5e or CAT6 10/100/1000BASE-T cable/to connect the
router to the network

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Hardware
Front View
LEDs
Power LED Function Normal Low Power
Mode
Meaning
No Power Off N/A
Boot Red—solid N/A
Green— Blip N/A N/A
Powering up Amber—flashing N/A
Normal
Operation
Green—solid Green—blip
starting after a
boot is
complete
Normal
operation but
no config
Green—flashing Unit is powered up
normally—unit has no
config. Unit is in Safe
mode or Factory
default mode.
Fatal error Red—solid Red—solid

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Setup Mode Amber—solid Amber—solid When you press and
hold the reset button
for 5 seconds. The solid
amber led indicate the
time to release to
initiates setup mode.
Factory Reset Red—solid Red—solid When you press and
hold the reset button
for 20 seconds. The
solid red indicates the
time to release to
imitate reset to factory.
Overheat
Standby
Red—blip Red—blip Overheat caused the
unit to go into Standby
mode. Router will
restart when temp is
below the threshold.
No Config Green-flashing N/A Unit is powered up
normally—unit has no
config. Unit is in safe
mode or factory
default mode.
Serial Function Normal Low Power
Mode
Meaning
Disabled or not
in use
Off Off Always off in power
saving mode.
Serial port/s
TX/RX
Green—flashing Off
WWAN Function Normal Low Power
Mode
Meaning
Disabled Off Off

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Connected—
good signal
Color—solid Off–once a
connection is
established, it
will come on
for 5 secs then
go off
Colour will depend on
signal strength. Green
= Good signal— >= -
80dBm Amber = Fair
signal— >-94dBm <-
80dbm red="Poor"
signal—<="94dBm" <
body>
Connection in
progress
Green, Amber or
Red flashing
Off Signal strength flash
Not connected
or not
connecting
Green, Amber, or
Red blips
Off Signal strength blip
GNSS Function Normal Low Power
Mode
Meaning
Disabled Off Off No GPS activated or in
power saving mode.
Initializing Green—blip Off
Attempting to
get a fix or
unable to get a
fix
Amber—flashing Amber—blip
GPS fix Green—solid Off—green
solid for 5
seconds then
off
VPN Function Normal Low Power
Mode
Meaning
No VPN Off Off No VPN configured or
enabled
VPN
established
Green—solid Off VPN established—at
least 1 VPN connection
is up.
VPN failed Red—solid Red—blip Internet is up, but VPN
failed

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
WLAN Function Normal Low Power
Mode
Meaning
5.0GHz Green—solid Off Client mode
connected—AP Radio
mode.
5.0 TX/RX Green—flashing Off Client or AP activity.
2.4GHz Amber—solid Off Client mode
connected—AP-radio
active.
2.4 TX/RX Amber—flashing Off Client or AP activity.
No connection Off Off Client mode—no
connection; AP mode
not enabled.
Internet Function Normal Low Power
Mode
Meaning
Disconnected Off Off No connection by
intention
disabled or radio
off
disconnect
requested
Connected Green—solid Off LTE primary if no
WAN
Primary connection
if WAN
Backup mode Amber—solid Off Backup connection if
WAN.

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
SIM Card/s
The IRG554x supports two SIM cards. See Inserting the SIM card for the installation procedure.
Back View (IRG5541/5541+)
Note: IRG5540 models do not have the WLAN-1 and WLAN-2 antennas.
Connection
failure
Red—solid Red—blip A connection was
attempted, but it
failed.
APN incorrect
SIM card missing
insufficient signal
no service
modem failure
data connection
failed—waiting to
retry
Pin incorrect SIM
blocked, bad
unlock code
SIM locked
SIM blocked,
unblock code
incorrect
SIM/ Interface 1.8V/3V

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Antenna/s
The IRG5540 has three SMA antenna connectors, Main, Div/GNSSL1, and GNSS. WiFi models have
two additional connectors WLAN-1 and WLAN-2 antennas. For more information on connecting the
antennas see the Technical Specifications section Connecting the Antenna/s.
USB-C Port
In console mode, the IRG554x USB port provides direct access to the Command Line Interface (CLI)
as well as provides statuses, logging, and troubleshooting information. Alternative, this port can be
set as an Ethernet over USB port.
See Connecting to the Serial Port and Connecting to the USB-C port as an Ethernet over USB Port.
Ethernet LAN Ports
Once the ports are connected and the link is established, the speed LED will turn on. The LED
indicates a 10, 100, or 1000 Mbps link on the Ethernet port.
Ethernet Link Status
GNSS Connector
GPS+GLONAS+GAILEO
Passive Antenna—SMA(M) straight connector
See Appendix A—Technical Specifications for electrical details.
Link/Speed Indicator Description
Left LED Green Link + Flashing with activity 1000 Mbps
Both LEDs Link + Flashing with activity 100 Mbps
Right LED Green Link + Flashing with activity 10 Mbps
Off Off No LAN connected

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
Connecting the Power
Some models ship with a DC power cable or a pigtail cable.
The GPIO connector can be configured as a high side pull-up/dry contact digital input, analog input,
low side current sink output, digital output/open drain, or pulse counter depending on your applica-
tion. Pin 3—IGN can be configured as vehicle ignition sense or as analog input.
Warning: Before servicing this product ensure the power source has been disconnected.
Pin Name Associated DC
Cable Wire color
Description Type
1Power Red Main power supply for device.
Note: If you want to turn the IRG554x on/off
using a control line, such as a vehicle ignition
line, we recommend that you connect the
control/ignition line to Pin 3 and apply
continuous power On Pin 1
PWR
2Ground Black Main device ground. GND
3 IGN White Connect to the vehicle ignition or an external
switch. This input can be configured to put
the router into a Standby mode when the
signal goes low and take it out of Standby
mode when it goes high. Alternatively it can
be used simply as an analog input.
IGN
4 GPIO Green User configurable digital input/output or
analog voltage sensing input. Connect to
switch, relay or external device.
GPIO
Note: Use copper conductors only.

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Perle IRG5540/5540+/5541/5541+ Router Hardware Installation Guide
AUX/IO
The AUX/IO connector allows a connection for an RS485 device, 2 digital input devices (A and B),
and 1 relay device. The two digital input connectors allow (NO) normally open relay.
Relay Alarm
The Router has one Normally Open (NO) relay (Pin 5 and Pin 1). The relay switch can be connected
to an external powered device such as a siren or light to provide visual or audible notification of an
alarm status.
Ensure the power source is off prior to connection.
Pin Numbers 87 6 5
Pin Description RS485 - GND Input B Relay NO
(normally open)
Pin Numbers 43 2 1
Pin Description RS485 + GND Input A Relay NO
(normally open)
Warning: Before connecting wiring, ensure the power source has been disconnected.