COBHAM DIGImini User manual

The most important thing we build is trust
DIGImini
AMERICAS
Digital Multi-band Series
User Manual – 00031UM Rev. 6.3

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | II
Copyright © 2017 Axell Wireless Limited trading as Cobham Wireless
All rights reserved.
No part of this document may be copied, distributed, transmitted, transcribed, stored in a retrieval system, or translated
into any human or computer language without the prior written permission of Axell Wireless Limited trading as Cobham
Wireless.
The manufacturer has made every effort to ensure that the instructions contained in this document are adequate and
free of errors and omissions. The manufacturer will, if necessary, explain issues which may not be covered by this
document. The manufacturer's liability for any errors in the document is limited to the correction of errors and the
aforementioned advisory services.
This document has been prepared to be used by professional and properly trained personnel, and the customer assumes
full responsibility when using them. The manufacturer welcomes customer comments as part of the process of continual
development and improvement of the documentation in the best way possible from the user's viewpoint. Please submit
your comments to the nearest Cobham Wireless sales representative.
Contact Information
Headquarters Axell Wireless trading as Cobham Wireless
Aerial House, Asheridge Road
Chesham, Buckinghamshire
HP5 2QD, United Kingdom
Tel: [phone]
Fax: [phone]
Commercial inquiries [e-mail]
Website www.cobham.com/wireless
Support issues [e-mail]
Technical Support Line, English speaking [phone]
About This Manual
This Product Manual provides the following information:
•Description of the Repeater unit
•Procedures for setup, configuration and checking the proper operation of the unit
•Maintenance and troubleshooting procedures

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | III
Ordering information and DIGImini Models to which this manual applies:
ORDERING INFORMATION for DIGImini Americas Repeaters
Identification Description Part Number
DIGI Mini 850&SMR800/1900 DIGI MINI 850&SMR800/1900 21/20 dBm 8 Filters D-MINI-2108CS-2019
DIGI Mini 700U/AWS1 DIGI MINI 700 Upper /AWS1 21/20 dBm 8 Filters D-MINI-2107U-2017
DIGI Mini AWS1+3 DIGI MINI AWS1&3 20 dBm 8 Filter SB D-MINI-2017F-SB
DIGI Mini 700l/AWS1+3 DIGI MINI 700 Lower /AWS1&3 21/20 dBm 8 Filters D-MINI-2107L-2017F
DIGI Mini AWS1/1900 DIGI MINI AWS1/1900 20/20 dBm 8 Filters D-MINI-2017-2019
DIGI Mini AWS1/2600 DIGI MINI AWS1/2600 20/20 dBm 8 Filters D-MINI-2017-2026
DMCU External DIGI MINI Control Unit with GPRS Modem DMCU
DMCU External DIGI MINI Control Unit with CDMA1X Modem DMCU-CDMA
DMCU External DIGI MINI Control Unit with WCDMA
(Telit 864) Modem DMCU-WCDMA
DIGI Mini Accessory Kit DIGI mini 4 bands Accessory upgrade kit D-MINI-4B-AK
Digi Mini 19" bracket Digi Mini 19" bracket D-MINI 19-BRKT

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | IV
For whom it is intended
This Product Manual is intended for experienced technicians and engineers. It is assumed that the customers installing,
operating, and maintaining Cobham Wireless Repeaters are familiar with the basic functionality of Repeaters.
Notice
Confidential - Authorized Customer Use
This document may be used in its complete form only and is solely for the use of Cobham Wireless employees and
authorized Cobham Wireless channels or customers. The material herein is proprietary to Cobham Wireless. Any
unauthorized reproduction, use or disclosure of any part thereof is strictly prohibited.
All trademarks and registered trademarks are the property of their respective owners.
Disclaimer of Liability
Contents herein are current as of the date of publication. Cobham Wireless reserves the right to change the contents
without prior notice. The information furnished by Cobham Wireless in this document is believed to be accurate and
reliable. However, Cobham Wireless assumes no responsibility for its use. In no event shall Cobham Wireless be liable
for any damage resulting from loss of data, loss of use, or loss of profits and Cobham Wireless further disclaims any and
all liability for indirect, incidental, special, consequential or other similes damages. This disclaimer of liability applies to all
products, publications and services during and after the warranty period.
Safety Instructions and Warnings
Throughout this manual, important safety warnings and admonishments are included to warn of possible hazards to
persons or equipment. A safety warning identifies a possible hazard and then describes what may happen if the hazard
is not avoided. The safety warnings –in the form of Dangers, Warnings and Cautions must be followed at all times.
These warnings are flagged by the use of a warning icon, usually the triangular alert icon seen below. The exclamation
point within the triangular alert icon is intended to warn the operator or service personnel of operation and maintenance
from factors relating to the product and its operating environment, which could pose a safety hazard.
Guarantees
•All antennas must be installed with lightning protection. Damage to power modules, as a result of lightning are not
covered by the warranty.
•Switching on AC or DC power prior to the connection of antenna cables is regarded as faulty installation procedure
and therefore not covered by the Cobham Wireless warranty.
General Safety Warnings Concerning Use of This System
Always observe standard safety precautions during installation, operation and maintenance of this product.
Exclusive Remedies
The remedies provided herein are the Buyer’s sole and exclusive remedies. Cobham Wireless shall not be viable for any
direct, incidental, or consequential damages, whether based on contract, tort, or any legal theory.

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | V
Compliance with FCC
WARNING!! This is NOT a CONSUMER device. This device is designed for installation by
FCC LICENCEES and QUALIFIED INSTALLERS. You must have an FCC LICENCE or express
consent of an FCC Licensee to operate this device.
Unauthorized use may result in significant forfeiture penalties, including penalties in excess
of $100,000 for each continuing violation.
FCC Part 15
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired
operation.
If not installed and used in accordance with the instructions, this equipment generates, uses and can radiate
radio frequency energy. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to RF reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•Reorient or relocate the Donor antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Unauthorized Changes to Equipment
Changes or Modifications not expressly approved by the manufacturer responsible for compliance could void
the user’s authority to operate the equipment
FCC RF Exposure Limits
This unit complies with FCC RF exposure limits for an uncontrolled environment. This equipment must be
installed and operated with a minimum distance of 20cm between the radiator and any person’s body.
Antenna Installation
Installation of an antenna must comply with the FCC RF exposure requirements. The antenna used for this
transmitter must be mounted on outdoor or indoor permanent structures.
The maximum antenna gain for indoor operation is 2.2 dBi and for the external antenna is 9dBi. Cable loss
of at least 2dB is taken into account for all cases.
Antennas having a gain greater than these are strictly prohibited for use with this device. In indoor
applications the antenna must be installed at a minimum separation distance of 20cm from all nearby
persons.

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | VI
Compliance with IC
WARNING!! This is NOT a CONSUMER device. It is designed for installation by an installer
approved by an ISED licensee. You MUST have an ISED LICENCE or the express consent of
an ISED licensee to operate this device.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and
maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio
interference to other users, the antenna type and its gain should be so chosen that the equivalent
isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une
antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans
le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le
type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas
l'intensité nécessaire à l'établissement d'une communication satisfaisante.
The Manufacturer's rated output power of this equipment is for single carrier operation. For situations when
multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the
output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be
by means of input power or gain reduction and not by an attenuator at the output of the device.
This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm between the
antenna and your body.
La puissance de sortie nominale indiquée par le fabricant pour cet appareil concerne son fonctionnement
avec porteuse unique. Pour des appareils avec porteuses multiples, on doit réduire la valeur nominale de 3.5
dB, surtout si le signal de sortie est retransmis et qu'il peut causer du brouillage aux utilisateurs de bandes
adjacentes. Une telle réduction doit porter sur la puissance d'entrée ou sur le gain, et ne doit pas se faire au
moyen d'un atténuateur raccordé à la sortie du dispositif.
Cet appareil est conforme aux limitations de la norme IC RSS-102 concernant l’exposition aux radiations
dans un environnement non contrôlé. Cet appareil doit être installé et utilisé avec une distance minimale de
20cm entre l’antenne et le corps de l’utilisateur.
Conforme aux CNR
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts
de licence. L’exploitation est autorisée aux deux conditions suivantes :
1) l’appareil ne doit pas produire de brouillage;
2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
Required for the installation/Requis par l'installation
The installation must comply with directives provided in the following link / L'installation doit être
conforme aux directives fournies dans le lien suivant:
http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08942.html

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | VII
General Safety Warnings Concerning
Always observe standard safety precautions during installation, operation and maintenance of this product.
Caution labels!
Throughout this manual, there are "Caution" warnings. "Caution" calls attention
to a procedure or practice, which, if ignored, may result in injury or damage to
the system, system component or even the user. Do not perform any procedure
preceded by a "Caution" until the described conditions are fully understood and
met.
Danger: Electrical
Shock
To prevent electrical shock when installing or modifying the system power wiring,
disconnect the wiring at the power source before working with un insulated wires
or terminals.
Caution: Safety to
personnel
•
Before installing or replacing any of the equipment, the entire manual should be
read and understood.
•
The user needs to supply the appropriate AC or DC power to the repeater.
Incorrect power settings can damage the repeater and may cause injury to the
user.
•
Please be aware that the equipment may, during certain conditions become
very warm and can cause minor injuries if handled without any protection, such
as gloves.
Caution: Safety to
equipment
•
When installing, replacing or using this product, observe all safety precautions
during handling and operation. Failure to comply with the following general
safety precautions and with specific precautions described elsewhere in this
manual violates the safety standards of the design, manufacture, and intended
use of this product.
•
Changes or modifications not expressly approved by the party responsible
•
for compliance could void the user’s authority to operate the equipment
•
Axell Wireless assumes no liability for the customer's failure to comply with
these precautions. This entire manual should be read and understood before
operating or maintaining the repeater.
Warning: Restricted
Access Location
Access to the Axell unit installation location is restricted to SERVICE PERSONNEL
and to USERS who have been instructed on the restrictions and the required
precautions to be taken.
Attention: Electrostatic
Sensitivity
•
Observe electrostatic precautionary procedures.
•
ESD = Electrostatic Discharge Sensitive Device.
•
Static electricity can be conducted to the semiconductor chip from the centre
pin of the RF input connector, and through the AC connector pins. When
unpacking and otherwise handling the repeater, follow ESD precautionary
procedures including use of grounded wrist straps, grounded workbench
surfaces, and grounded floor mats.

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | VIII
Table of Contents
1SYSTEM DESCRIPTION.............................................................................................. 1-1
1.1 Features and Capabilities....................................................................................................1-2
1.2 Single Unit and Dual-Unit Installations ................................................................................ 1-3
1.3 Single Band Unit Upgradeable to Dual-band........................................................................ 1-3
1.4 Smart-ALC Function............................................................................................................ 1-3
1.5 DMCU - Optional.................................................................................................................. 1-3
1.6 DIGImini Interfaces..............................................................................................................1-4
1.6.1 Front Panel Interfaces................................................................................................1-4
1.6.2 Side Panel Interfaces.................................................................................................1-5
1.6.3 DIGImini Power Supply..............................................................................................1-5
2ANTENNA AND REPEATER INSTALLATION REQUIREMENTS..................................... 2-1
2.1 Base (Donor) Antenna Requirements .................................................................................. 2-1
2.1.1 Required Antenna Information....................................................................................2-1
2.1.2 Donor Antenna specifications .....................................................................................2-1
2.1.3 Installation Criteria.....................................................................................................2-2
2.2 Service Antenna Requirements ...........................................................................................2-2
2.2.1 Required Antenna Information....................................................................................2-2
2.2.2 Recommended Antennas...........................................................................................2-2
2.2.3 Service Antenna Installation Criteria............................................................................2-2
2.3 Repeater Pre-Installation Requirements............................................................................... 2-3
2.3.1 Safety Guidelines......................................................................................................2-3
2.3.2 Required BTS Information..........................................................................................2-3
2.3.3 Criteria for Repeater Installation Location ....................................................................2-3
2.3.4 RF Cable Installation Guidelines.................................................................................2-3
3SINGLE UNIT REPEATER INSTALLATION .................................................................. 3-1
3.1 Overview............................................................................................................................. 3-1
3.2 Required Tools and Materials..............................................................................................3-1
3.3 DIGImini Single Unit Kit....................................................................................................... 3-2
3.4 Mounting the Repeater ........................................................................................................3-3
3.5 Before Connecting the Antennas or Power.......................................................................... 3-5
3.5.1 Verifying Donor and Service Antennas Isolation ...........................................................3-6
3.5.2 Verifying Link between the BTS and the Repeater........................................................3-6
3.6 Antenna Connections.......................................................................................................... 3-7
3.7 Power Up............................................................................................................................. 3-8
3.8 What Next?..........................................................................................................................3-8
4QUAD-BAND REPEATER INSTALLATION................................................................... 4-1
4.1 Overview............................................................................................................................. 4-1
4.2 View of the Dual Unit Installation......................................................................................... 4-2
4.3 Required Tools and Materials.............................................................................................. 4-2
4.4 DIGImini Tri/Quad-band Kit..................................................................................................4-3
4.4.1 Top Layer Items........................................................................................................4-3
4.4.2 Middle layer Items .....................................................................................................4-4
4.4.3 Bottom Layer Items ...................................................................................................4-4
4.4.4 Additional Items.........................................................................................................4-5
4.5 Upgrading to a Quad-Band System...................................................................................... 4-5
4.5.1 Assemble the DIGImini Units......................................................................................4-5

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | IX
4.5.2 Choosing the Appropriate Plate ................................................................................ 4-10
4.5.3 Connect SMA Jumper Cables................................................................................... 4-13
4.5.4 Mount and Secure Quad-Band Assembly .................................................................. 4-14
4.6 Before Connecting the Antennas or Power........................................................................4-16
4.7 Antenna Connections........................................................................................................4-16
4.8 Power Up...........................................................................................................................4-17
4.9 What Next?........................................................................................................................4-17
5SETUP AND CONFIGURATION................................................................................... 5-1
5.1 Open a Direct Local Web Session to the Repeater............................................................... 5-1
5.1.1 Connect the Computer to the Repeater........................................................................5-2
5.1.2 Configure the Computer’s Network Parameters............................................................5-3
5.1.3 Login to the Repeater ................................................................................................5-5
5.2 Navigating the Web GUI Application.................................................................................... 5-6
5.2.1 Band Pane and Tabs.................................................................................................5-7
5.2.2 Operation Buttons .....................................................................................................5-7
5.3 Signal Levels and Channel Configuration............................................................................ 5-7
5.3.1 RF Gain Setting Criteria.............................................................................................5-8
5.3.2 Bandwidth and the Number of Available Sub-Bands .....................................................5-8
5.3.3 Adjusting the Signal Levels and Configuring Channels..................................................5-9
6ADMINISTRATION, MONITORING AND TROUBLESHOOTING...................................... 6-1
6.1 Administrative Operations................................................................................................... 6-1
6.1.1 License File Upload...................................................................................................6-1
6.1.2 Dual-band Support ....................................................................................................6-2
6.1.3 Connection to an Ethernet Network.............................................................................6-3
6.1.4 Connection to an External Modem ..............................................................................6-4
6.2 Monitoring and Troubleshooting .........................................................................................6-5
6.2.1 Repeater Alarms and Troubleshooting.........................................................................6-5
6.2.2 DIGImini LED Troubleshooting....................................................................................6-7
Appendix A: Specifications...................................................................................................1

DIGIMINI AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless –Coverage Date: 6-Jul-17 www.cobham.com/wireless
Doc. No.: 00031UM Rev. 6.3 Page | 1-1
1 SYSTEM DESCRIPTION
Cobham Wireless’ new DIGImini repeater (digital mini repeater) is an innovative flexible multiband coverage
solution optimized for in-building applications.
Cobham Wireless’ DIGImini offers a completely new range of possibilities. With multi technology (e.g
GSM/WCDMA/LTE) applications, multiple filters are required in the operation bands. The DIGImini is
designed to provide high performance digital filters with a competitive price when compared to legacy
analogue mini repeaters.
Up to four different frequency bands can be implemented in two dual band DIGImini repeaters.
Each DIGImini repeater is available in a range of single-band and dual-band models, where specific single-
band models can be updated to dual-band (requires license).
Easy “plug and play” allows our customers to add services as needed, thus minimizing their CAPEX. Software
Defined Filtering of up to 8 sub-bands in each dual band configuration and up to 16 sub-bands for quad
band configuration.
Individual Gain and ALC settings for each sub-band for multi-technology applications (e.g. GSM/
WCDMA/LTE), as well as for single and multi-operator applications.
A state-of-the-art Interference Mitigation and Oscillation Prevention (IMOP) algorithm is used to measure the
isolation between the antennas and gain is reduced immediately to prevent oscillation.
The DIGImini is connected to one donor antenna placed on the roof of the building and the radiating coaxial
cable or antennas in the area to be covered. Configuration and monitoring of the DIGImini can be done
through an intuitive web management GUI. Remote management is done via optional wireless modem.
With the Cobham Wireless advanced supervision and control software -AEM, the entire fleet of digital
multiband repeaters can be monitored.
Figure 1-1. Cobham Wireless DIGImini Repeater