AXELL BSF-3302 User manual

BSF-3302 VHF Fiber Optic Repeater
Product Description and User’s Manual
Doc No. PN 3302 61-200001 Series-UM Rev. 1.0
THIS DOCUMENT IS VALID FOR THE
BSF 3302 (150/174MHz) REPEATERS for the US Market

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 2
Table of Contents
1Notices.................................................................................................................................. 4
1.1 Copyright © 2014 Axell Wireless Ltd.................................................................................. 4
1.2 Contact Information ............................................................................................................ 4
1.3 About This Manual.............................................................................................................. 5
1.4 Compliance with FCC......................................................................................................... 6
1.4.1 FCC Part 15............................................................................................................. 6
1.4.2 Unauthorized Changes to Equipment...................................................................... 6
1.4.3 FCC RF Exposure Limits......................................................................................... 6
1.4.4 Antenna Installation ................................................................................................. 7
1.4.5 Compliance with FCC deployment rule regarding the radiation of noise................. 7
1.4.6 General Safety Warnings Concerning Use of This System..................................... 9
2Introduction........................................................................................................................ 11
2.1 Features and Capabilities................................................................................................. 12
2.2 Automatic Level Control ................................................................................................... 13
2.3 Operating Temperature .................................................................................................... 13
2.4 Management WEB GUI.................................................................................................... 14
2.5 Interfaces.......................................................................................................................... 14
2.5.1 Securing the Unit ................................................................................................... 14
2.5.2External Interfaces................................................................................................. 15
2.5.3 Internal Interfaces.................................................................................................. 16
3Antenna and Repeater Installation Requirements.......................................................... 17
3.1 BSF-3302 Installation Requirements................................................................................ 17
3.1.1 Safety Guidelines................................................................................................... 17
3.1.2 Criteria for Repeater Installation Location ............................................................. 17
3.1.3 RF Cable Installation Guidelines ........................................................................... 18
3.1.4 F/O Cable Installation Guidelines .......................................................................... 18
3.2 Service Antenna Requirements........................................................................................ 18
3.2.1 Required Antenna Information............................................................................... 18
3.2.2 Indoor Installations................................................................................................. 19
3.2.2.1 Recommended Antennas................................................................................... 19
3.2.2.2 Recommended Splitters and Couplers .............................................................. 19
3.2.2.3 Installation Criteria ............................................................................................. 20
3.2.3 Service (Mobile) Antenna Installation Criteria........................................................ 20
3.3 RF Cabling Requirements ................................................................................................ 20
4Installation.......................................................................................................................... 21
4.1 Unpacking......................................................................................................................... 21
4.2 Mount the Repeater.......................................................................................................... 21
4.2.1 Selecting a Location to Ensure Proper Cooling..................................................... 22
4.2.2 Wall-Mounting Preparation .................................................................................... 22
4.2.3 Mount the Repeater on the Wall............................................................................ 24
4.3 Grounding......................................................................................................................... 26
4.4 Ensure Good Electromagnetic Vulnerability (EMV) Protection......................................... 27
4.5 Fiber Optic Connection..................................................................................................... 29
4.6 External Alarm and Relay Connections............................................................................ 31
4.6.1 External Alarm ....................................................................................................... 31
4.6.2 Relay...................................................................................................................... 31
4.7 Power and Backup Battery............................................................................................... 32
4.7.1 Circuit Breaker....................................................................................................... 32
4.7.2 Power Connections................................................................................................ 32
4.7.2.1 Backup Battery................................................................................................... 33
4.7.2.2 Connecting the Power Source ........................................................................... 33
4.7.3 Power ON .............................................................................................................. 34
4.7.3.1 Switching Power ON .......................................................................................... 34

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 3
4.7.3.2 Verifying LEDs ................................................................................................... 34
4.8 Closing and Securing the Repeater.................................................................................. 34
5BSF-3302 Commissioning................................................................................................. 35
5.1 Open a Session to the BSF-3302 via the OMU II............................................................. 35
5.2 BSF-3302 Optical Loss Adjustment (OLA)....................................................................... 36
5.3 RF Balancing.................................................................................................................... 38
5.3.1 Manual RF Balancing ............................................................................................ 38
5.3.2 Automatic BSF-3302 RF Balancing....................................................................... 40
5.4 Integration into the Axell Element Manager (AEM) .......................................................... 41
5.5 What Next?....................................................................................................................... 41
6BSF-3302 Full GUI Description......................................................................................... 42
6.1 Opening a Direct Web Session ........................................................................................ 42
6.1.1 Connecting Locally ................................................................................................ 42
6.1.2 Remote Connection and Login .............................................................................. 43
6.2 Navigating the Web Interface ........................................................................................... 44
6.2.1 Management Options Buttons ............................................................................... 45
6.2.2 Home Screen Overview......................................................................................... 46
6.2.3 Configuration Screen Overview............................................................................. 47
6.3 Configuring General Parameters...................................................................................... 48
6.3.1 Site Information –BSF-3302 Identification ............................................................ 48
6.3.2 Date & Time........................................................................................................... 49
6.3.3 Configure External Alarms..................................................................................... 49
6.3.4 IP Address ............................................................................................................. 50
6.4 Remote Communication Setup......................................................................................... 51
6.4.1 TCP/IP and Ethernet.............................................................................................. 51
6.4.2 Modem Setup ........................................................................................................ 52
6.4.2.1 Packet Switched Modem Configuration (GSM/GPRS) ...................................... 52
6.4.2.2 Circuit Switched Modem (PSTN/GSM) .............................................................. 53
6.4.2.3 SIM-card Using Single Numbering Scheme....................................................... 53
6.5 SNMP Support.................................................................................................................. 54
6.5.1 SNMP Traps Parameters....................................................................................... 54
6.5.2 Activating and Configuring the SNMP Agent......................................................... 54
6.6 User Accounts .................................................................................................................. 55
6.6.1 Default User Accounts........................................................................................... 55
6.6.2 User Access Levels ............................................................................................... 56
6.6.3Change Password ................................................................................................. 56
6.7 Reboot.............................................................................................................................. 57
6.8 Axell Shell (Command Line Interface).............................................................................. 57
6.9 Attribute Reference........................................................................................................... 58
7Monitoring, Fault Sourcing and Maintenance................................................................. 59
7.1 Cautions and General Statements ................................................................................... 59
7.2 Monitoring Via the BSF-3302 Home Screen .................................................................... 60
7.2.1 General Page Area................................................................................................ 61
7.2.2 Detailed view of the BSF-3302 RF Status ............................................................. 61
7.2.3 Detailed view of Fiber Optic Unit ........................................................................... 62
7.2.4 Subsystems ........................................................................................................... 62
7.3 Logs Screen ..................................................................................................................... 63
7.4 Module LEDs.................................................................................................................... 64
7.4.1 Control Module LEDs............................................................................................. 65
7.4.2 F/O Converter LEDs .............................................................................................. 66
7.4.3 Power Supply LEDs............................................................................................... 67
Appendix A - Specifications ........................................................................................................ 68
Appendix B - F/O Cleaning Procedure........................................................................................ 69

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 4
1 Notices
1.1 Copyright © 2014 Axell Wireless Ltd
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 Ltd.
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
Axell Wireless sales representative.
1.2 Contact Information
Headquarters
Axell Wireless
Aerial House
Asheridge Road
Chesham
Buckinghamshire HP5 2QD
United Kingdom
Tel: [phone]
Fax: [phone]
Commercial inquiries
[email protected]
Web site
www.axellwireless.com
Support issues
[email protected]
Technical Support Line,
English speaking
[phone]
Contact information for Axell Wireless offices in other countries can be found on our web site,
www.axellwireless.com

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 5
1.3 About This Manual
This Product Manual provides the following information:
●Description of the BSF-3302 repeater
●Procedures for installation, setup, configuration and checking the proper operation of the
unit
●Maintenance and troubleshooting procedures
Intended Audience
This Product Manual is intended for experienced technicians and engineers. It is assumed that the
customers installing, operating, and maintaining Axell 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 Axell Wireless
employees and authorized Axell Wireless channels or customers. The material herein is
proprietary to Axell 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. Axell Wireless reserves the right to
change the contents without prior notice. The information furnished by Axell Wireless in this
document is believed to be accurate and reliable. However, Axell Wireless assumes no
responsibility for its use. In no event shall Axell Wireless be liable for any damage resulting from
loss of data, loss of use, or loss of profits and Axell Wireless further disclaims any and all liability
for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability
applies to all products, publications and services during and after the warranty period.
Safety to Personnel
●Before installing or replacing any of the equipment, the entire manual should be read and
understood.
●This equipment is to be installed only in a restricted access location where access is
restricted to is restricted to SERVICE PERSONNEL and to USERS who have been
instructed on the restrictions and the required precautions to be taken.
●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.
This notice calls attention to a procedure or practice that, if ignored, may
result in personal injury or in damage to the system or system component. Do
not perform any procedure preceded by a "CAUTION!" until described
conditions are fully understood and met.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 6
1.4 Compliance with FCC
Part 90 Signal Boosters THIS IS A 90.219 CLASS B DEVICE
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.
You MUST register Class B signal boosters (as defined in 47 CFR 90.219) online at
www.fcc.gov/signal-boosters/registration.
Unauthorized use may result in significant forfeiture penalties, including penalties in
excess of $100,000 for each continuing violation.
The installation procedure must result in the signal booster complying with FCC
requirements 90.219(d). In order to meet FCC requirements 90.219 (d), it may be
necessary for the installer to reduce the UL and/or DL output power for certain
installations.
1.4.1 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 power outlet on a circuit different from that to which the
receiver is connected.
1.4.2 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
1.4.3 FCC RF Exposure Limits
This unit complies with FCC RF exposure limits for an uncontrolled environment. This equipment
can only be installed in applications, driving passive or active DAS systems. All antennas must be
operated at a minimum distance of 58 cm between the radiator and any person’s body.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 7
1.4.4 Antenna Installation
Installation of an antenna must comply with the FCC RF exposure requirements. The antenna
used for this transmitter must be mounted on permanent structures.
The FCC regulations mandate that the ERP of type B signal boosters should not exceed 5W, this
is equivalent to 8.2W EIRP.
Therefore the max antenna gain allowed for this type of signal booster should be limited to the
values given by equation 1 (below) for the service antenna.
Equation (1) - Max SERVICE antenna gain
Max SERVICE antenna gain (dBi) = 39.1 –(37dBm - # of antennas in dB –cable losses in dB).
For example:
No. of Antennas
Cable Losses
Max Allowed Antenna Gain
4
3
39.1 - (37-6-3) =11.1dBi
1
3
39.1- (37-0-3) = 5.1dbi
10
3
39.1- (37-10-3) = 15.1dbi
1.4.5 Compliance with FCC deployment rule regarding the radiation of noise
Good engineering practice must be used in regard to the signal booster’s noise radiation. Thus, the
gain of the signal booster should be set so that the ERP of the output noise from the signal booster
should not exceed the level of -43 dBm in 10 kHz measurement bandwidth.
In the event that the noise level measured exceeds the aforementioned value, the signal booster
gain should be decreased accordingly.
In general, the ERP of noise on a spectrum more than 1 MHz outside of the pass band should not
exceed -70 dBm in a 10 kHz measurement bandwidth.
The 3302 61-200001 Series Repeater has a noise level of -60 dBm in 10 kHz measurement at 1
MHz spectrum outside the passband of the signal booster and an in-band noise level at around -36
dBm in a 10 kHz bandwidth. Therefore, the noise at the antenna input port should be calculated
based on equation (3).
Equation (2) - Input Noise to service antenna
Input Noise to service antenna:
-36 dBm + Service Antenna gain –Antenna splitter losses in dB –cable loss in dB

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 8
Example: In band Noise
Signal booster connected to 10 service antennas with a 100m long ½ inch cable.
Losses of such a cable with the connectors = ~ 12dB
Gain = ~ 2 dBi
Assuming 10 service antennas: antenna splitter losses = 11 dB
Based on equation (3) Input antenna noise (to the antenna) = -36+2-12 -11=-57 dBm
The in-band input noise to the antenna should be -36+2 -12-11= -57dbm
Example: Out of band noise
Signal booster connected to 10 service antennas with a 100m long ½ inch cable.
Losses of such a cable with the connectors = ~ 12dB
Gain = ~ 2 dBi
Assuming 10 service antennas: antenna splitter losses = 11 dB
Based on equation (3) Input antenna noise (to the antenna) = -60+2-11 -15=--81dBm
The Out of-band input noise to the antenna should be -60+2 -12-11= -81dbm
NOTE: In this example there is no need to add an external band pass filter to attenuate the out of
band noise. If fewer antennas are deployed then additional filtering may be required
Conclusion:
Good engineering practice requires that in general when the out of band noise measured at the
service antenna input is more than -70 dBm per 10 kHz measurement bandwidth, an external band
pass filter should be added to attenuate the out of band noise level.
All Axell Wireless repeaters include high selectivity duplexers and filters to attenuate the out of
band noise. Should additional filtering be required, we have a comprehensive range of interference
filters which can be supplied upon request.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 9
1.4.6 General Safety Warnings Concerning Use of This System
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 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:
RF Exposure
RF radiation, arising from transmitter outputs connected to AWL’s
equipment, must be considered a safety hazard.
This condition might only occur in the event of cable disconnection, or
because a ‘spare’ output has been left un-terminated. Either of these
conditions would impair the system’s efficiency. No investigation should
be carried out until all RF power sources have been removed. This would
always be a wise precaution, despite the severe mismatch between the
impedance of an N type connector at 50Ω, and that of free space at
377Ω, which would severely compromise the efficient radiation of RF
power. Radio frequency burns could also be a hazard, if any RF power
carrying components were to be carelessly touched!
Antenna positions should be chosen to comply with requirements (both
local & statutory) regarding exposure of personnel to RF radiation. When
connected to an antenna, the unit is capable of producing RF field
strengths, which may exceed guideline safe values especially if used
with antennas having appreciable gain. In this regard the use of
directional antennas with backscreens and a strict site rule that
personnel must remain behind the screen while the RF power is on, is
strongly recommended.
Where the equipment is used near power lines or in association with
temporary masts not having lightning protection, the use of a safety earth
connected to the case-earthing bolt is strongly advised.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 10
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
This Axell Wireless equipment is to be installed only in a restricted access
location where access 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
center 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.
Caution:
Class 1 Laser
The repeaters described in this manual are equipped with class 1 lasers,
as per definition in EN 60825-1
Caution! - Un-terminated optical receptacles may emit laser radiation.
Exercise caution as follows:
●Do not stare into the beam or view with optical instruments.
Optical transmitters in the fiber optic converter can send out high
energy invisible laser radiation. There is a risk for permanent
damage to the eye.
●Always use protective cover on all cables and connectors which
are not connected.
●Never look directly into a fiber cable or a connector.
●Consider that a fiber can carry transmission in both directions.
●During handling of laser cables or connections, ensure that the
source is switched off.
●Regard all open connectors with respect and direct them in a
safe direction and never towards a reflecting surface. Reflected
laser radiation should be regarded as equally hazardous as
direct radiation.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 11
2 Introduction
The BSF 3302 is a fiber optic fed UHF repeater. It is part of a system that is fed from an Axell
Wireless Optical Master Unit Mk. 2 (OMU II), supporting WDM technology, lowering the number of
fibers needed per system. The maximum optical loss of up to 10dB is allowed over the fiber
interconnecting the OMU II and the most distant last remote unit that the OMU supports. This
offers great flexibility when providing RF coverage in areas where it is not possible to rely on off-air
transmission.
The fiber optic system is easily remotely monitored and controlled by Axell Wireless’effective
supervision tool, The Axell Wireless Element Manager (AEM).
The BSF-3302 includes automatic optical gain settings, where the gain is adjusted in the downlink
chain by measuring the level of the pilot carrier sent from the OMU II. The level of the received pilot
carrier is continuously monitored.
Figure 2-1 Illustration of OMU II Connection to BSF Remote

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 12
2.1 Features and Capabilities
●Supports frequency bands 150.0125-173.3875MHz
●Operational bandwidth: 0-5 MHz
●Duplex Distance: 0-5 MHz
●Output Power per carrier UL/DL:
●1 carrier: + 33dBm
●2 carriers: + 30dBm
●3-4 carriers: +27dBm
●8 carriers: +24dBm
●Supports WDM technology
●Automatic Optical Gain Setting via OMU II
●Remote configuration and management:
●Via OMU II intuitive Web GUI
●Via AEM –automatically detected via AEM no local setup required
●Optionally via Ethernet or GSM, GSM-R PSTN modem
●SNMP v1/v2c support
●Automatic Level Control (ALC) - provides constant gain in both uplink and downlink paths
according to the defined maximum output level
●Very low noise factor - minimizes interference to BTS and increases high speed data
throughput
●Backup battery for ‘last gasp’, sending fault error before power failure
●Wall or pole mount conforming to IP65 and NEMA 4 standard
●Power source: 115VAC, 230 VAC or -48V power (depending on your order)

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 13
2.2 Automatic Level Control
The repeater is equipped with Automatic Level Control (ALC). The ALC feature enables
maintaining the maximum defined output level.
The repeater has a defined maximum output level. If the input signal amplified by the gain set
exceeds the set output limit, an ALC loop is activated. This ALC ensures that the amplifier does not
add distortion to the radio signal. Below are examples of the ALC function for one and two carriers.
2.3 Operating Temperature
The BSF-3302 is designed primarily for multi carrier purposes. If the repeater is run at full output
power over a long period of time, the convection cooling may not be enough. The repeater is
equipped with a power management function that steps down the power and, if needed, fully shuts
down the amplifier chains until temperature reaches normal values. In situations where a repeater
will be run in such a manner extra cooling can be provided by putting the repeater in a temperature
controlled environment or via external fans.
+20
Input Signal, dBm
Output Power Level, dBm
Gain 70dB
-50
ALC
ALC one carrier
Input signal, dBm
Output power, dBm
+36,5
+33,8
-24 -16
Gain: 60 dB
+35
ALC two carriers

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 14
2.4 Management WEB GUI
BSF-3302 is remotely commissioned and monitored via an OMU II session. Local access to the
unit is not required for commissioning.
Additional configuration and troubleshooting options are available via a direct connection to the
BSF-3302 IP address. A direct session can be opened locally or remotely.
NOTE: Direct remote communication requires connecting the BSF-3302 to an Ethernet network
and configuration of an IP address, or via GSM/GSM-R PSTN modem.
2.5 Interfaces
The BSF-3302 unit provides the following interfaces:
●Lockable door catches for protection and security
●External TX and RX antenna and GND connections
●External connection for power
●Internal connection for fiber optics and alarm cables routed via cable gland on the side of
the unit
●Internal USB/Ethernet connection for (optional) management and analysis via Web GUI
routed via cable gland on the side of the unit
2.5.1 Securing the Unit
The repeaters are secured with two, quarter-turn door catches which can be locked with a key.
NOTE: The two door catches must be fully closed and locked. Failure to do so will affect the IP65
compliancy and therefore any warranty.
Figure 2-2: Securing the Unit

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 15
2.5.2 External Interfaces
The repeater’s external interfaces are located on the right-hand side of the unit
Figure 2-3: ports and connections
The following table provides a description of the ports and connections.
Port
Description
D/L DAS RF Port
Downlink output connection to TX Antenna –N type connector, female
U/L DAS RF Port
Uplink input connection from RX Antenna –N type connector, female
Cable Gland
The fiber optic cable link from the master site is routed through this gland.
The optional Ethernet connection for management and analysis via Web
GUI may also be routed through this gland.
Connections for routing external alarms and relay wiring cable for internal
connections (section 4.6.) are also routed through this cable gland
Power Connection
AC inlet, 3 pole panel plug (section 4.7.)
Grounding
Connection
Grounding bolt (section 4.3.)

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 16
2.5.3 Internal Interfaces
This section shows the internal interfaces for the repeater. You will need to open the Repeater in
order to do the following:
●Connect optic fibers
●Connect alarms (if relevant)
●Power-on (Power-ON and Battery ON switches)
●USB/Ethernet port for local setup
Figure 2-4: Repeater with Door Open
Feature
Description
Rechargeable
Backup Battery
provides the Control Module and modem with enough capacity to send an
alarm in case of input power failure. See section 4.2.7.1.
Power and battery
Switches
Separate switches for PSU module and Backup Battery. See section 4.7.3.
Controller Module
Provides RS232 ,USB and Ethernet ports for local and remote control and
reporting/interrogation of alarm data. See section 7.4.1.
Fiber Optic Converter
module
The fiber optic transceiver module. See section 7.4.2.
Alarm and Relay
Connections
The external alarm interface card. See Section 4.6.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 17
3 Antenna and Repeater Installation Requirements
This chapter provides information on the Remote installation site requirements, on the installation
requirements of the antennas, the specifications of the service antennas suitable for operation with
this remote and RF and F/O cable requirements.
3.1 BSF-3302 Installation Requirements
3.1.1 Safety Guidelines
Before installing the Repeater, review the following safety information:
●Follow all local safety regulations when installing the Repeater.
●Only qualified personnel are authorized to install and maintain the Repeater.
●Ground the Repeater with the grounding bolt located on the external lower side of the
Repeater.
●Do not use the grounding bolt to connect external devices.
●Follow Electro-Static Discharge (ESD) precautions.
●Use low loss cables to connect the antennas to the Repeater.
Class 1 Laser
This product is equipped with class 1 lasers, as per definition in EN 60825-1.
Un-terminated optical receptacles may emit laser radiation. Do not stare into
the beam or view with optical instruments
3.1.2 Criteria for Repeater Installation Location
The following criteria should be considered when selecting the Repeater installation site location:
●Application type
●General surroundings
●Available installation
●Install the Repeater in a shielded, ventilated, and easy-to-reach area.
●Verify that there is a minimum of a 50 cm (20”) radius of space around the Repeater,
enabling easy access to the repeater for maintenance and on-site inspection.
●Distance from antenna site - It is recommended that the installation location be as close
as possible to the antenna site in order to maintain the cable loss to a minimum.
●The Repeater is convection cooled so airflow and alternation should be possible.
●Follow Electro-Static Discharge (ESD) precautions.
●Install the Repeater close to the service area to monitor the output power.
●Use low loss cables to connect the antennas to the Repeater.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 18
3.1.3 RF Cable Installation Guidelines
Required:
●For all coaxial connections to/from the Repeater - high performance, flexible, low loss
50Ω coaxial communications cable.
●All cables shall be weather-resistant type.
●Cable length - determined by the Repeater installation plan. When calculating the cable
length, take into account excess cable slack so as not to limit the insertion paths.
3.1.4 F/O Cable Installation Guidelines
Use the following over the complete link between the Remote and OMU:
●Use SC/APC connectors (8 degree angle) for all connections
●Cable length - determined by the Remote installation plan. When calculating the cable
length, take into account excess cable slack so as not to limit the insertion paths.
Recommended fiber-optic cable:
●Single-mode type fiber 9/125
3.2 Service Antenna Requirements
a. The installer is held accountable for implementing the rules required for
deployment.
b. Good engineering practice must be used to avoid interference.
c. Output power should be reduced to solve any IMD interference issues.
The Service antenna type (i.e. the antenna feeding the mobile/remote units) depends on the
design of the DAS.
3.2.1 Required Antenna Information
The following antenna requirements, specifications and site considerations should be met:
●Type of installation –DAS/Radiating Cable
●Service area type and size
●Antenna type and characteristics
●Height
●Length and type of coaxial cable required for connecting the antenna to the Repeater and
the attenuation.

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 19
3.2.2 Indoor Installations
3.2.2.1 Recommended Antennas
The following describes the requirements for an omnidirectional mobile used for indoor
applications.
Specifications:
●One or a combination of the following antennas can be used: Ceiling Mount Patch antenna,
Wall Mount Patch antenna, Corner Reflector.
●Choose an antenna with high side lobe attenuation which enables maximum isolation from
other co-located antennas.
●
Equation (1) - Max SERVICE antenna gain
Max SERVICE antenna gain (dBi) = 39.1 –(37dBm - # of antennas in dB –cable losses in dB).
For example:
No. of Antennas
Cable Losses
Max Allowed Antenna Gain
4
3
39.1 - (37-6-3) = 11.1dBi
1
3
39.1- (37-0-3) = 5.1dBi
10
3
39.1- (37-10-3) = 15.1dBi
Typical Antenna Types:
●Indoor Dome 2.1dBi beam width 360o
●Indoor Panel 4.2dBi beam width 106o
●Radiating Cable Typically < -50dBi
3.2.2.2 Recommended Splitters and Couplers
Axell Wireless can supply a comprehensive range of splitters and Couplers to aid the installation of
the DAS system. Typical specifications as below:
Splitter Part Numbers
90-851402
90-851203
90-851204
Frequency Band
120-240MHz
Split
2 way
3 way
4 way
Max Insertion Loss
0.3dB
0.5dB
0.4dB
Split Loss
3dB
4.8dB
6dB
Coupler Part Number
90-852506
90-852510
90-852515
90-852520
Frequency Band
120-240 MHz
Coupling
-6dB ±1.0dB
-10dB ±1.0dB
-15dB ±1.0dB
-20dB ±1.0dB
Max Mainline Loss
1.7dB
0.8dB
0.4dB
0.22dB
ć

Axell BSF-3302 61-200001 Series Repeater
Product Description and User’s Manual
© Axell Wireless Ltd Doc. No. PN 3302 61-200001 Series-UM Rev. 1.0 20
3.2.2.3 Installation Criteria
Determine the antenna installation configuration, according to the transmission requirements and
the installation site conditions.
Installation requirements:
●An indoor antenna should be installed at a convenient location. It should be free of
metallic obstruction.
Install the Service Antenna at the designated height and tune it roughly toward the Service
coverage area.
3.2.3 Service (Mobile) Antenna Installation Criteria
Determine the antenna installation configuration, according to the transmission requirements and
the installation site conditions.
Installation requirements:
●An indoor antenna should be installed at a convenient location. It should be free of
metallic obstruction.
●Install the Service Antenna at the designated height and tune it roughly toward the
Service coverage area.
●Installation of this antenna must provide a minimum separation distance of 58 cm from
any personnel within the area.
3.3 RF Cabling Requirements
●For all coaxial connections to/from the Repeater - high performance, flexible, low loss
50Ω coaxial communications cable.
●All cables shall be weather-resistant type.
●Cable length - determined by the Repeater installation plan. When calculating the cable
length, take into account excess cable slack so as not to limit the insertion paths.
●Make sure that cable and connector are compatible. Using cables and connectors from
the same manufacturer is helpful.
●All connectors must be clean and dry
●Waterproof all outdoor connections using silicone, vulcanizable tape or other suitable
substance as moisture and dust can impair RF characteristics.
●Make sure enough room has been allocated for the bending radius of the cable. RF
cables must not be kinked, cut or damaged in any way
●Connect the RF cable to the antenna tightly but without damaging threads
●Fasten cables tight to cable ladder or aluminum sheet
●For short length of feeder cables use ½ “, for longer feeder cables use 7/8”. Chose thicker
coax cables for lower attenuation. Minimize the length of the coax cables to reduce the
attenuation
●Use jumper cable for easy installation. The RF Coaxial cable can be substituted at each
end with a jumper cable.