Digi IR4420, ER4420i, ER4420p, ER4420 Installation Manual

IIRR44442200

EERR44442200//ii//pp

4000 Series Routers

ISDN router / switch

Wireless GPRS/EDGE router / switch

Installation Guide

IR4420 & ER4420/i/p Installation Guide

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Disclaimer

Digi International makes no representations or warranties with respect to the contents or
use of this manual, any software drivers or associated application software provided with
this product and specifically disclaims any expressed or implied warranties of
merchantability or fitness for any particular purpose.

Digi International reserve the right to modify or revise all or part of this document, its
contents, and any products described herein at any time without prior notification and shall
not be responsible for any loss, cost, or damage, including consequential damage, caused
by reliance on these materials.

Product disposal instructions

The WEEE (Waste Electrical and Electronic Equipment: 2002/96/EC) directive has been
introduced to ensure that electrical/electronic products are recycled using the best
available recovery techniques to minimise the impact on the environment.

This product contains high quality materials and components which can be recycled. At
the end of it’s life this product MUST NOT be mixed with other commercial waste for
disposal. Check with the terms and conditions of your supplier for disposal information.

Sarian Systems WEEE Registration number: WEE/JB0053TQ

Copyright

© 2009 Digi International. All rights reserved. No part of this document covered by
copyright may be reproduced or copied in any form or by any means graphic, electronic, or
mechanical, including photocopying, recording, taping, or information and retrieval
systems without written permission of Digi International.

Issue 1.4, August 2009. Part # 6211-0018 Rev A

IR4420 & ER4420/i/p Installation Guide

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Safety Notices

1) Please read all instructions before installing and powering the unit. You should keep
these instructions in a safe place for future reference.

2) The IR4420, ER4420, ER4420i and ER4420p use a 12V DC/1.5A power supply
(mains adapter). If the mains adapter shows signs of damage or malfunction, you
should stop using it immediately - turn off the power at the mains and disconnect it
from the mains supply before contacting your supplier for a repair or replacement.

3) Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment. Use only the
accessories, attachments, and power supplies provided by the manufacturer –
connecting non-approved antennas or power supplies may damage the unit, cause
interference or create an electric shock hazard, and will void your warranty.

4) Do not attempt to repair the products; they contain no electronic components that can
be serviced or replaced by the user. Any attempt to service or repair the unit by the
user will void the product warranty.

5) The IR4420, ER4420, ER4420i and ER4420p are designed for indoor use only and
should be used in an environment that is suitable for computers and other electronic
equipment.

6) Ports that are capable of connecting to other apparatus are defined as SELV ports. To
ensure conformity with IEC60950 ensure that these ports are only connected to ports
of the same type on other apparatus.

IR4420 & ER4420/i/p Installation Guide

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Special Notes on Wireless Safety

Digi International products are designed to the highest standards of safety and
international standards compliance for the markets in which they are sold. However, GSM
based products contain radio devices which require specific consideration. Please take the
time to read and understand the following guidance. Digi International assumes no liability
for an end user’s failure to comply with these precautions.

Wireless routers incorporate a wireless radio module. Users should
ensure that the aerial is positioned at least 1 metre away from
themselves and other persons in normal operation.

When in a hospital or other health care facility, observe the restrictions on
the use of mobile phones. Do not use the router in areas where
guidelines posted in sensitive areas instruct users to switch off mobile
phones. Medical equipment may be sensitive to RF energy.

The operation of cardiac pacemakers, other implanted medical
equipment and hearing aids can be affected by interference from cellular
terminals such as the wireless routers when placed close to the device. If
in doubt about potential danger, contact the physician or the
manufacturer of the device to verify that the equipment is properly
shielded. Pacemaker patients are advised to keep the wireless router
away from the pacemaker while it is on.

Wireless routers must NOT be operated on aircraft. The operation of
wireless appliances in an aircraft is forbidden to prevent interference with
communications systems. Failure to observe these instructions may lead
to the suspension or denial of cellular services to the offender, legal
action, or both.

As with any electrical equipment, you should not operate your wireless
router in the presence of flammable gases, fumes or potentially explosive
atmospheres. Radio devices should not be used anywhere that blasting
operations are taking place.

Wireless routers receive and transmit radio frequency energy while
switched on. Remember that interference can occur if it is used close to
TV sets, radios, computers or inadequately shielded equipment. Follow
any special regulations and always switch off your wireless router
wherever forbidden or when you suspect that it may cause interference
or danger.

SOS IMPORTANT! – Wireless routers operate using radio signals and
cellular networks cannot be guaranteed to connect in all possible
conditions. Therefore, you should never rely solely upon any wireless
device for life critical communications.

IR4420 & ER4420/i/p Installation Guide

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Preface

This guide describes the installation procedure for the IR4420, ER4420, ER4420i and
ER4420p. It is intended to provide sufficient information for you to be able to connect the
unit to your terminal equipment and power supply. A complete reference guide to the
software features that are available on the product is available separately in PDF format
that can be downloaded from the Digi International website (www.digi.com

).

All models feature:

♦ 4 x 10/100Base-T Ethernet ports
♦ 2 x RS232 sync/async serial ports (25-way D)
♦ 2 x USB 2.0 host ports
♦ 2 x SIM card sockets

Several combinations of EDGE/GPRS, ISDN and PSTN connectivity are available
depending on the model.

Note: You will not be able to use the router for remote communication until you have
subscribed to a suitable EDGE network service.

Package Contents

When you receive the router carefully unpack it and check the contents. These should
include:

Model
Item IR4420 ER4420 ER4420i ER4420p
System unit
12V mains adapter
Installation guide
2m CAT5 STP LAN cable (blue)
2m ISDN cable
2m PSTN cable

If any item is missing or damaged, please contact your supplier. You should also make a
record of any damage that may have occurred during shipping and report it to the carrier.

IR4420 & ER4420/i/p Installation Guide

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1 Introduction

The ER4420 and other models described in this guide are compact IP routers that
facilitate the transmission of data over EDGE and/or ISDN/PSTN networks. All models
incorporate a 4-port 10/100 Ethernet switch. Depending on the model, each unit also
incorporates one or more WAN interfaces as follows:

♦ IR4420 – ISDN BRI only
♦ ER4420 – wireless GPRS/EDGE only
♦ ER4420i – wireless GPRS/EDGE and ISDN BRI
♦ ER4420p – wireless GPRS/EDGE and PSTN

The routers can be configured either by using commands entered at the serial port (much
like a modem), or via the built-in Web interface. We recommend that you use the Web
interface whenever possible.

In addition to many standard LAN and Internet protocols such as PPP, ER series products
provide a combination of powerful but easy to use configuration, management and
diagnostic tools. This makes them simple and cost-effective solutions for migrating existing
terminal or telemetry equipment, which use wired networks (PSTN, ISDN, etc.), to wireless
EDGE operation.

1.1 Front Panel Features

The front panel of the unit incorporates the USB host connectors, a number of LED
indicators depending on the model and the two SIM card-holders as shown in the following
illustration (ER4420i):

USB Host Connectors

The USB host connectors may be used to connect compatible USB client devices such as
memory sticks, serial adapters, etc.