Dekolink Wireless BDASMR16W80 Dual Band Bi-Directional Amplifier User Manual Deko3178B UM Rev 1 56 29 May 08

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© Dekolink Wireless Ltd
Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
ABOUT THIS MANUAL
This Product Manual describes the Deko3178B Dual Band BDA and provides information on
how to setup, configuration of the Dual Band BDA and troubleshooting procedures.
TO WHOM IT IS INTENDED:
This Product Manual is intended for experienced technicians and engineers. It is assumed
that the customers installing, operating, and maintaining Dekolink Dual Band BDA’s are
familiar with the basic functionality of Dual Band BDA’s.
NOTICE
Confidential - Authorized Customer Use
This document may be used in its complete form only and is solely for the use of Dekolink
Wireless Ltd. employees and authorized Dekolink Wireless channels or customers. The
material herein is proprietary to Dekolink Wireless Ltd. 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
The remedies provided herein are the Buyer’s sole and exclusive remedies. Dekolink
Wireless Ltd. shall not be viable for any direct, incidental, or consequential damages,
whether based on contract, tort, or any legal theory.
Dekolink Wireless
International Headquarters
16 Bazel St., Kiryat-Arieh,
Petah-Tikvah 49001
ISRAEL
Dekolink USA, Inc.
Americas Group
550 Club Drive
Ste. 470
Montgomery, Texas 77316-3094, USA
Tel.:
Fax:
Tel: +1-936-582-7100
Fax: +1- 936-582-7108
+972 3 918-0180
+972 3 918-0190
E-mail:
Website:
marketing@dekolink.com
www.dekolink.com
E-mail: marketing@dekolinkusa.com
Website:
www.dekolink.com
© Dekolink Wireless Ltd
Publication No.: 300TC80031 Rev. 1.55
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page i
PRODUCT MANUAL
CBDA DEKO3178B
DEKOLINK WIRELESS LTD.
SAFETY WARNINGS
Throughout this manual, important safety warnings 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 related to the product and its operating
environment, which could pose a safety hazard.
GENERAL SAFETY WARNINGS CONCERNING USE OF THIS SYSTEM
Always observe standard safety precautions during installation, operation and maintenance
of this product. Only a qualified and authorized personnel should carry out adjustment,
maintenance or repairs to the components of this equipment.
DANGER: ELECTRICAL SHOCK
This equipment is intended to be installed indoor. Wet conditions increase the potential for
receiving an electric shock when installing or using electrically powered equipment. 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: RF EXPOSURE
To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 35
cm or more should be maintained between the antenna of this device and persons during device
operation. To ensure compliance, operations at closer than this distance is not recommended. The
antenna used for this transmitter must not be co-located in conjunction with any other antenna or
transmitter.
W ARNING: EQUIPMENT MODIFICATIONS
Changes or modifications not expressly approved by Dekolink Wireless Ltd. could void the user’s
authority to operate the equipment
Page ii
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
REVISION HISTORY
The revision history for this document is shown in Table 1.
Table 1: Revision history
P/N
Revision
Date
Description
300TC80031
1.0
26-FEB-2008
Initial Version
300TC80031
1.3
13-May-2008
Frequency change, minor edits
300TC80031
1.4
27-May-2008
Minor edits from lab
300TC80031
1.5
28-May-2008
Minor edits – power per carrier
300TC80031
1.55
29-May-2008
Minor edits – Warning, Canada freq
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page iii
PRODUCT MANUAL
CBDA DEKO3178B
DEKOLINK WIRELESS LTD.
CONTENTS
About This Manual ........................................................................................................... i
To Whom It Is Intended: ................................................................................................... i
Notice ................................................................................................................................ i
Disclaimer of Liability ...................................................................................................... i
Safety Warnings .............................................................................................................. ii
General Safety Warnings Concerning Use of This System ........................................... ii
Revision History ............................................................................................................. iii
1 INTRODUCTION .......................................................................................................... 6
1.1 Features ............................................................................................................... 6
1.2 Deko3178B Block Diagram Description ............................................................. 7
1.3 Deko3178B Interfaces ......................................................................................... 8
1.3.1
1.3.3.1
1.3.3.2
Front Panel Ports ................................................................................. 8
1.3.2 Front Panel Indicators .......................................................................... 8
1.3.3 Internal Power Selector ........................................................................ 9
UL Step Attenuator ......................................................................................10
DL Step Attenuator ......................................................................................10
2 Site and Installation Requirements ......................................................................... 11
2.1 Grounding Wires Requirements ....................................................................... 11
2.2 Antenna Requirements ..................................................................................... 11
2.2.1
Base (Donor) Antenna ....................................................................... 11
2.2.2 Mobile (Service) Antenna ................................................................... 11
2.3 Pre-Installation Safety Instructions .................................................................. 12
2.4 Installation Location, Environment and Cables ............................................... 12
3 Installing the Dual Band BDA .................................................................................. 13
3.1 Unpacking ......................................................................................................... 13
3.2 Required Tools and Materials ........................................................................... 13
3.3 Dry Contact Alarm Connections ....................................................................... 14
3.4 Grounding ......................................................................................................... 15
3.5 Power Up ........................................................................................................... 15
4 Antennas Installation and Connection .................................................................... 16
4.1 RF Gain Setting Criteria .................................................................................... 16
4.2 Antenna Installation .......................................................................................... 16
4.2.1
Base (Donor) Antenna ....................................................................... 16
4.2.2 Mobile (Service) Antenna ................................................................... 16
4.3 Antenna Connections ....................................................................................... 17
4.4 Verifying Isolation between Donor and Mobile Antennas ............................... 17
Page iv
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
4.5 Verifying the Link between the BTS and the Dual Band BDA ..........................18
5 Monitoring and Alarms .............................................................................................19
5.1 Deko3178B Alarms ............................................................................................19
Appendices: ...................................................................................................................20
Appendix A: Specifications (@+25°C) .....................................................................20
Electrical ........................................................................................................20
Mechanical Specifications ..............................................................................20
Environmental Specifications..........................................................................20
Appendix B: Mechanical Drawing ............................................................................21
Appendix C: Dekolink Wireless Limited Warranty ..................................................22
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page v
PRODUCT MANUAL
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
1 INTRODUCTION
Deko3178B is a dual-band 700/800 MHz band selective mid-power amplifier in a single
compact unit.
Specially designed for public safety in-door networks, the Deko3178B small foot-print
and flexible installation options minimize interference with operations on the floor on
which it is installed.
It can be installed in a rack, mounted on a wall or on the ceiling. It’s relatively low
weight which allows mounting and maintenance by a single person, in addition to the
simple commissioning procedure that does not require a high level technician, provides
significant savings on labor costs.
The Deko3178B can be remotely monitored via an external wireless modem connected
to dry-contacts on the unit. It can be remotely accessed through a secure website or
through a third-party NMS via SNMP traps.
Figure 1-1: Deko3178B Dual Band BDA
1.1
Page 6
FEATURES
•
Band selective, mid-power amplifier for public safety
in-building network
•
Dual-band SMR 700/800 MHz in a single unit
•
Composite power (See Appendix A)
•
80 dB RF gain
•
Small footprint and light weight for easy maintenance
•
RF SAW filtering
•
Gain matching uplink and downlink
•
Alarm indication by LED and Dry contact
•
Manual Gain Control
•
High linear amplification
•
Ideal for in-building and out-door coverage solutions
•
Relative small size and light weight
•
Cost effective solution
•
Wall mounted easy Installation
•
Reliable operation, maintenance free
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
1.2
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
DEKO3178B BLOCK DIAGRAM DESCRIPTION
The CBDA Downlink path receives the RF signal from the base station, amplifies it and
transmits it to the subscriber. The BDA Uplink path receives the RF signal from the
subscriber amplifies it and transmits it to the base station. Two triplexers at the Dual
Band BDA’s input and output separate the uplink and downlink frequency bands,
creating high isolation between them and enabling the appropriate amplification of the
signals in each path.
Each path contains two amplifiers and an RF SAW Filter that provides signal filtration
and amplification. In addition, the Dual Band BDA power amplifiers have an ALC option
switch. When switched on, the ALC circuit limits the amplifier output power. The ALC
circuit senses the output power and introduces more attenuation, when the output
power exceeds the preset level. This way the gain of the amplifier is reduced, its output
power is limited and the intermediations products are kept below the desired level.
Warning: The AGC switch must be always ON in order to limit the spurious
signals.
The gain of each path can be set manually. The separation of the gain setting
architecture enables setting the actual gain for each path.
Figure 2. Deko3178B Functional Block Diagram
Pub. 300TC80031 Rev. 1.55
Proprietary Data
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PRODUCT MANUAL
1.3
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
DEKO3178B INTERFACES
The Deko3178B interfaces are located on the dual band BDA top and front panel.
1.3.1 Front Panel Ports
The front panel includes the dual band
below.
antenna and power connections as shown
There are two types of antenna connectors: Base (Donor) and Mobile (Service)
connections.
Donor
antenna
connections
Service
antenna
connections
Dry contact
alarm
connections
Unit AC
Power
connection
Figure 1-3. Deko3178B Front Panel
The following table provides a description of the front panel ports and connections.
Group
Connectors
BASE
Donor antenna connections.
MOBILE
Service antenna connections.
EXT. Alarm
Dry contact alarm port for external alert devices
AC
Connection to AC power supply (100 to 240 VAC)
1.3.2 Front Panel Indicators
The front panel includes one Power indicator that shows green upon power up of the
unit.
Page 8
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
1.3.3 Internal Power Selector
Deko3178B includes two internal power level selectors used for manual UL and DL gain
control adjustment. See following figure.
Uplink step
attenuator
Downlink step
attenuator
Figure 4. Internal View of Deko3178B UL/DL Step Attenuators
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page 9
PRODUCT MANUAL
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
1.3.3.1 UL Step Attenuator
The manual gain setting function for the UL path is performed with the use of a rotary
knob. The attenuation can be adjusted in 2 dB steps. See following figure.
Figure 5. UL Step Attenuator
1.3.3.2 DL Step Attenuator
The manual gain setting function for the DL path is performed with the use of a rotary
knob. The attenuation can be adjusted in 2 dB steps. See following figure.
Figure 6. DL Step Attenuator
Page 10
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
2 SITE AND INSTALLATION
INSTALLATION REQUIREMENTS
This section describes the power, antenna and site requirements for the Dual Band BDA
installation.
2.1
GROUNDING WIRES REQUIREMENTS
Requirements for grounding wires
2.2
•
Protective grounding conductor - should be aluminum with cross-section 10AWG.
•
Lug of the protective grounding conductor - should be aluminum
•
Washers and screw - should be high Cr stainless steel, or 12% Cr stainless steel, or
Cr on, Ni on steel, tin on steel
ANTENNA REQUIREMENTS
2.2.1 Base (Donor) Antenna
The Base (Donor) antenna is usually installed outdoors and is either a directional
antenna such as a Yagi or a Panel antenna.
Donor Antenna specifications:
•
Yagi type or similar – 10 to 15 dBi gain, very sharp beam pointed to the BTS.
•
Cable and jumper loss is at least 2dB.
•
The required Base signals should be the dominant signals; at least 6 dB higher
power than other signals.
•
Example of antenna's typical specifications:
Gain:
8 dBd (=10 dBi)
VSWR:
< 1:5:1
Impedance:
50 ohm
2.2.2 Mobile (Service) Antenna
The Mobile antenna is installed indoors.
Note: Before installing the Mobile antenna, see FCC regulations for information
regarding recommended distances between the antennas and populated areas.
The following describes the requirements for an omni-directional mobile used for indoor
applications.
Specifications:
•
Omni directional antenna with a 0 to 2 dBi typical gain, or wide beam with up to
3dBi gain.
•
Example of omni-directional antenna specifications:
Gain:
0 to 2 dBi
VSWR:
< 2:1
Impedance:
50 ohm
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page 11
PRODUCT MANUAL
2.3
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
PRE-INSTALLATION SAFETY INSTRUCTIONS
Before installing the Dual Band BDA, review the following safety information:
2.4
•
Follow all local safety regulations when installing the Dual Band BDA.
•
Only qualified personnel are authorized to install and maintain the Dual Band BDA.
•
During normal operation, the Dual Band BDA door should be closed.
•
Some maintenance tasks may require the Dual Band BDA door to be opened while
the power is on. In such cases, perform the required tasks carefully and remember
to close the Dual Band BDA cover/door when finished.
•
Ground the CBDA with the grounding bolt located on the external lower side of the
cabinet (see 3.4).
•
Do not use the grounding bolt to connect external devices.
•
Follow Electro-Static Discharge (ESD) precautions.
•
Before closing the CBDA cover, make sure no wires are in the way.
•
Use low loss cables to connect the antennas to the Dual Band BDA.
INSTALLATION LOCATION, ENVIRONMENT AND CABLES
WARNING
THE DUAL BAND BDA MUST ALWAYS BE INSTALLED VERTICALLY AND TOP-DOWN, TO ALLOW
FREE-FLOW OF COOLING AIR. HORIZONTAL INSTALLATION ON A BENCH FOR LONG TIME MAY CAUSE
DAMAGE TO THE DUAL BAND BDA DUE TO OVER-HEATING.
Page 12
•
Use a suitable mounting surface, such as a rigid wall.
•
Follow Electro-Static Discharge (ESD) precautions.
•
Install the Dual Band BDA close to the service area to monitor the output power and
noise figure.
•
Use low loss cables to connect the antennas to the Dual Band BDA.
•
Install the Dual Band BDA in a shielded, ventilated, and easy-to-reach area –
preferably at eye level.
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
3 INSTALLING THE DUAL BAND BDA
3.1
UNPACKING
Upon receiving the Deko3178B unit, perform the following:
1.
Examine the shipping container for damage before unpacking the unit.
2.
Perform a visual inspection to reveal any physical damage to the
equipment.
3.
Verify that all of the equipment (listed below) is included. Otherwise
contact Dekolink Wireless Ltd.
The Deko3178B Dual Band BDA is shipped with the following equipment:
3.2
•
Deko3178B Dual Band BDA - Model: MW-CBDA-SMR700-800-16W80
•
Key (used to lock the Dual Band BDA case)
•
AC supply cable [6 ft.]
•
User Manual (CD)
•
Packaging box
REQUIRED TOOLS AND MATERIALS
A standard professional tool box is required in order to mount the Deko3178B Dual Band
BDA Mounting the Deko3178B
To mount the Dual Band BDA on the wall
1.
Choose the location of the Dual Band BDA on the wall according to the following
criteria:
•
The location should be at normal eye level height, above ground.
•
Make sure that there is enough room to allow the door to swing completely
open, and to enable easy access to the Dual Band BDA for maintenance and onsite inspection.
2. Mark the drilling holes on the wall surface based on the Dual Band BDA four
mounting holes. See following figure.
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page 13
PRODUCT MANUAL
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
Mounting hole
x4
Figure 7. Deko3178B Mounting Holes
3. Drill the four holes in the wall.
4. Align the chassis so that the mounting brackets fit into the holes drilled in the wall.
5. Use tire bolts, hex-head bolts, and M8 washers to secure the enclosure firmly to the
wall.
Note: Bolts and Washers are not supplied with the Dual Band BDA.
3.3
DRY CONTACT ALARM CONNECTIONS
The front panel Alarm port (see 1.3.1) is an optional dry contact alarm port that
supports two alarm connections from external sources (incoming outputs). The use of
relay alarms (open or short wire-pair circuit) is recommended for the external alarms
port.
Figure 8. Alarm Connector Pinout
Page 14
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
The following table provides a description of the Alarm connector pinout and the
corresponding cable wire color-match pin.
No.
3.4
Pin
Signal Name
Not Connected
Not Connected
Dry Contact – Normally Closed
Dry Contact - Normally Open
Not Connected
Not Connected
Dry Contact - Common
•
The relay alarms are Normally Open, however they close upon power up. Upon
detecting a fault or when the power is cut off from the CBDA the relay alarms open.
•
The relay alarms are connected to pins 3 and 4 of the front panel Alarms connector
used for remote sensing of faults.
GROUNDING
Once the Dual Band BDA is installed, you are required to ground it. The Dual Band BDA
case includes a grounding lug, where a grounding conductor cable should be attached.
The Dual Band BDA grounding conductor is found at the right-hand side of the bottom
panel.
The protective grounding conductor should be copper with cross-section of 10AWG. The
lug of the protective conductor should also be aluminum. Washers and screw should be
high CR stainless steel, or 12% stainless steel, or 12% Cr stainless steel, or Cr on steel,
Ni on steel, tin on steel.
3.5
POWER UP
To power-up
The Dual Band BDA operates from a 100/240 VAC Mains. The maximum consumption
power is 105W.
Connect the AC power cable to the Dual Band BDA front panel AC IN (100-240VAC)
connector.
100-240VAC
Figure 9.Power Up Connection
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page 15
PRODUCT MANUAL
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
4 ANTENNAS INSTALLATION
INSTALLATION AND
CONNECTION
4.1
RF GAIN SETTING CRITERIA
In order for the CBDA Dual Band BDA to operate effectively the isolation between the
base station and the mobile antenna must be at least 15 db higher than the CBDA gain.
The step attenuator on the low noise amplifier can reduce the CBDA gain. The CBDA
gain can be reduced by the amount indicated on the step attenuator.
Note: A higher CBDA gain than the isolation between the antennas would cause
oscillation which would saturate the amplifier. On the other hand, if the isolation were
only a few db higher than the CBDA gain, it would not be enough to cause oscillation
however it would cause gain ripple in the band.
4.2
ANTENNA INSTALLATION
4.2.1 Base (Donor) Antenna
NOTE: Verify that the antennas meet requirements described in section 2.2.1.
Installation requirements:
•
The antenna should point to the direction of the base station for maximum input
power
•
Verify that the antenna is in the base stations line of sight (raise the antenna if
necessary)
•
Install the donor antenna at a higher level (i.e. floor) than the mobile antenna
•
Must be installed at a minimum distance of 1 meter from any personnel within the
area.
4.2.2 Mobile (Service) Antenna
NOTE: Verify that the antennas meet requirements described in section 2.2.2.
Installation requirements:
Page 16
•
Install the service antenna on the ceiling or on the wall so it would shadow the
required coverage area within the in building environment.
•
Installation of this antenna must provide a minimum separation distance of 0.5 m
from any personnel within the area.
•
Cable and jumper loss is at least 2dB.
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
4.3
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
ANTENNA CONNECTIONS
Note 1: Do not operate the Dual Band BDA without terminating the antenna connections
with actual antennas or proper dummy loads.
Note 2: If the coaxial cables are NOT weather-resistant type, wrap the exterior coaxial
cables with insulation and holding tape (Type 3M Rubber splicing tape) for
environmental protection and to ensure longer lifetime.
To connect the antennas to the Dual Band BDA
•
Connect the Donor antenna to the Dual Band BDA BASE port.
•
Connect the Service antenna to the Dual Band BDA MOBILE port.
Figure 4-1.Deko3178B – Antenna Connections
4.4
VERIFYING ISOLATION BETWEEN DONOR AND MOBILE ANTENNAS
The isolation between the Base/Donor and Mobile/Service antennas is critical especially
for high gain, outdoor applications.
For proper operation of the Deko3178B Dual Band BDA, it is recommended that the
isolation between the Donor and Service antennas be at least 15 dB higher than the
Dual Band BDA set gain.
The isolation between the antennas is critical for high gain outdoor Dual Band BDA.
To measure the isolation; inject a known signal into one antenna and measure the
power at the other antenna. This should be done across the frequency range of both
uplink and downlink bands.
NOTE: Lower isolation can lead to high in-band ripple, oscillations and low signal quality.
To measure the isolation, proceed as follows:
1. Inject a known signal from a signal generator into one antenna (preferably the
Donor antenna).
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PRODUCT MANUAL
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
2. Measure the coupled output from the Service antenna, using the Spectrum analyzer
and LNA if applicable.
3. Perform this procedure across the frequency range of both the Uplink and Downlink
bands.
4. Register the lower result for system operation.
NOTE: The SALC feature overcomes this procedure.
4.5
VERIFYING THE LINK BETWEEN THE BTS AND THE DUAL BAND BDA
This test checks the signal strength from the BTS antenna to the CBDA Dual Band BDA.
Proceed as follows:
1. Using a Spectrum analyzer, measure the received signal from BTS at the Donor
antenna port near the Dual Band BDA.
2. Adjust the Donor antenna direction to receive the maximum signal strength.
3. Compare the received signal strength with the calculated signal strength from the
design phase.
In case of discrepancy, check for one of the following:
Page 18
•
Antenna out of direction
•
Antenna tuned to side lobe instead of main lobe
•
Antenna connector or antenna cable faulty
•
Line of sight problem (obstruction), etc.
•
Register the signal strength of the downlink channel for the system operation
phase.
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
5 MONITORING AND ALARMS
ALARMS
5.1
DEKO3178B ALARMS
The Deko3178B Dual Band BDA has two main active elements: DL Power Amplifier and
UL power amplifier. A monitor circuit monitors these elements and initiates an alarm
upon detecting a deviation from the normal operation. The summarized alarm output of
the monitoring card is sent to the corresponding front panel Alarm connector.
The monitor circuit performs the following functions:
•
Monitors the current of uplink power amplifier - If the current is either below or
above the specified limits an automatic alarm function is provided through a lit LED
and a dry contacts relay.
•
Monitors the downlink RF output power - If the output power is lower than +20dBm
an alarm function is provided by a lit LED and a dry contacts relay.
Indication
Cause
Action
Downlink LED is
ON
Indicates low RF power at
downlink path <20 dBm)
Check base antenna connection
Check antenna alignment to base.
Use higher gain BDA
Downlink LED is
ON
BDA fault
Replace BDA
Uplink Amp LED is
ON
Uplink amplifier over current
or undercurrent fault
Replace BDA
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page 19
PRODUCT MANUAL
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
APPENDICES:
APPENDICES:
APPENDIX A: SPECIFICATIONS (@+25°C)
This paragraph provides the electrical, mechanical and environmental specifications of
the Deko3178B Dual Band BDA.
Parameters
Frequency Range
USA
Canada
DL
UL
769 - 775 MHz
851 – 869 MHz
799 - 805 MHz
806 - 824 MHz
759-780 MHz
847-872 MHz
790-828 MHz
Passband Gain
80 dB
Passband Ripple
± 1.5 dB
Gain Attenuation Range (in 2 dB steps)
Max output power
Per carrier
0 to 30 dB
Single carrier
31.8 dBm
23.3 dBm
Multiple carriers
26 dBm
20 dBm
+ 50 dBm
+ 43 dBm
Output IP3 (typical)
Noise Figure@ Maximum Gain (typical)
5 dB
Propagation Delay
< 5 µsec
Max RF Input Power (no damage)
10 dBm
Max RF Input Power
Per carrier @ Max Gain
Single carrier
-49dBm
-57dBm
Multiple carriers
-56dBm
-60dBm
Electrical
Parameter
Value
Power Supply
100/240 VAC, 105 W
Impedance Level
50 Ω
RF Connector
N-type, female
Diplexer’s Connectors
SMA-type, female
VSWR (typical)
1.5 : 1
Mechanical Specifications
Parameter
Value
Size L x W x H
400 x 400 x 220 mm (approx.) [15.76 x 15.76 x 8.66
inch]
Weight
14 kg (approx.) (30.8 lbs)
Weatherproof
IP-65, NEMA 4
Environmental Specifications
Deko3178B is designed to operate properly under the following environmental conditions.
Condition
Value
Operating temperature
-10 °C to +50 °C (14 to 122° F)
Storage temperature
-40 °C to +80 °C (-40 to 176° F)
Page 20
Proprietary Data
Pub. 300TC80031 Rev. 1.55
DEKOLINK WIRELESS LTD.
COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B
PRODUCT MANUAL
APPENDIX B: MECHANICAL DRAWING
The following mechanical drawing shows the Deko3178B dimensions.
Pub. 300TC80031 Rev. 1.55
Proprietary Data
Page 21
PRODUCT MANUAL
COMPACT REPEATER DEKO3178B
DEKOLINK WIRELESS LTD.
APPENDIX C: DEKOLINK WIRELESS LIMITED WARRANTY
Dekolink Wireless [Ltd.] (“Dekolink”), manufacturer of this product (the “Product”) warrants to the
original purchaser (“Purchaser”) that the Product is free from defects in materials and workmanship
for a term that ends on the earlier of twelve (12) months from the date of activation of the Product
or fifteen (15) months from the date of shipment of the Product by Dekolink. The obligations of
Dekolink under this warranty shall be limited solely to the repair or exchange or giving credit for, at
the option of Dekolink, any Product that may prove defective in accordance with evidence
satisfactory to Dekolink. Any repair or replacement of the Product by Dekolink shall not extend the
original warranty period. This warranty is exclusive to the original Purchaser and is not assignable.
This warranty applies only upon the condition that the Product has been installed, maintained and
operated under conditions of normal use. The provisions of this warranty shall not apply if, in
Dekolink judgment, the Product has been subject to misuse or neglect, damaged in an accident or by
act of vandalism, or repaired or altered in any way that adversely affects its performance or
reliability.
To obtain warranty service, Purchaser may, upon the prior written authorization of Dekolink or its
authorized service representative, return the defective Product to Dekolink authorized service center.
All shipping and insurance charges are the sole responsibility of Purchaser and are not included in
this warranty.
Dekolink expressly excludes and disclaims all other warranties, including but not limited to any
warranties of merchantability or fitness for a particular purpose.
Dekolink shall in no event be liable for any special, indirect, incidental, consequential or punitive
damages or for loss, damage, or expense, including loss of use, profits, revenue, or goodwill, directly
or indirectly arising from purchaser’s use or inability to use the merchandise, or for loss or
destruction of other property or from any other cause, even if Dekolink has been advised of the
possibility of such damage. Some states do not allow the exclusion or limitation of incidental or
consequential damages so these limitations may not apply under certain circumstances.
The liability of Dekolink shall in no event exceed an amount equivalent to the purchase price paid by
the purchaser for the defective product.
This warranty shall not be extended, altered or varied except by a written instrument duly signed by
Dekolink.
Page 22
Proprietary Data
Pub. 300TC80031 Rev. 1.55

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