1.2 Coverage and Capacity Solutions ...................................................................................... 44
1.2.1 Modular O-air Repeaters - General description ..................................................................44
1.2.2 Optical Systems - General Description ...................................................................................... 47
A – Master Unit ...........................................................................................................................................47
B – Remote Units ....................................................................................................................................... 53
1.2.3 Coverage Systems Management and Power Supply ........................................................... 61
1.2.4 Teko Telecom Coverage Systems Technical Specications ................................................ 65
2. System Installation ...................................................................................................................68
Service Front End:• it is the single-band/multi-operator interface towards a Service
Antenna. It provides wireless signal to the area to be covered (Modular Repeaters).
In Optical Systems the Service Front End can be used to extend coverage to the area
close to the Master Unit site.
Remote Unit:• it is the multi-band/multi-operator equipment used in Optical Systems
to distribute wireless signal throughout the area to be covered (extensive areas
coverage/active DAS).
Modules providing the optical interface towards Remote Units3.
Fiber Optic Transmitter/Receiver Modules• are the optical interface between Master
Unit and Remote Units: they provide RF-to-Optical/Optical-to-RF conversion.
Master and Slave Point to Point Modules •perform the RF-to-Optical/Optical-to-RF
conversion required by the optical point to point link connecting RF Interface modules
to distant Fiber Optic Transmitter/Receiver Modules. The optical point to point link
allows a separation distance -up to 20km- between RF Interface modules and Fiber
Optic Transmitter/Receiver Modules.
Passive Modules providing distribution and ltering4.
Due to the exible conguration options of Teko Telecom Coverage and Capacity Systems,
the same passive components can be used for dierent purposes.
The •4-way Combiner/Splitter can be used to manage either up to 4 RF interface
modules, operating in the same band (Multi-Operator Systems) or up to 4 Fiber
Optic Modules (Fiber Optic Transmitter/Receiver Modules or Master Point to Point
SIRIUS: Teko Telecom Modular Coverage and Capacity System
Modules).
The •Band Splitter/Combiner (Triplexer) with built-in 1:4 Splitter/Combiner
can be used to manage up to 3 RF interface modules or Service Front End subracks,
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operating in dierent bands, and up to 4 Fiber Optic Modules. It can also manage
up to 3 four-way splitter/combiner modules each connected to multiple RF interface
modules, operating in the same band, and up to 4 Fiber Optic Modules.
Modules for the management of the System5.
The •Supervision Module allows the management of the whole Coverage System.
The •Alarm Module is an optional module that can be equipped to increase the number
of supported external alarms.
Power Supply Modules6.
The Coverage and Capacity Systems can be equipped with either AC (Universal mains,
85÷264Vac, 50-60Hz) or DC (-72÷-36Vdc) Power Supply modules.
Subracks hosting the System modules7.
Both active and passive subracks are available.
Active subracks• are provided with a backplane that allows the management and
power supply of active modules.
Passive subracks• are used to host passive modules that do not require power nor
management to function. Passive Subracks allow a reduction in the cost of the whole
system.
Forced-air cooling Subrack8.
A forced-air cooling subrack is available to ensure the air ow required for proper cabinet
installed equipment operation.
Rack cabinets for hosting the System Subracks (indoor installation) and cabinets for Outdoor
installation are also available.
A detailed description of each Component of Teko Telecom Modular Coverage and Capacity
System is provided in the following paragraphs.
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DL
UL
DL-OUT
-IN
BTS PORT
MONITOR
DL
UL
DL-OUT
-IN
BTS PORT
MONITOR
Modules providing the RF interface towards the signal source1.1.1
Point Of Interface Modules•
Point of Interface modules are used in Optical Systems to interface any kind of operator signal
source -pico/micro/macro BTS or NodeB: each Point of Interface module is connected to a
single mobile operator/ mobile band signal source via coaxial cable.
Optical Systems can be equipped with one Point of Interface or more Point of Interface
modules to make multiple congurations available: single operator (single band / multi-band)
and multi-operator (single-band / multi-band).
SIRIUS: Teko Telecom Modular Coverage and Capacity System
Passive Point Of Interface module (POI)
with rotary adjustable attenuators
Point Of Interface module (TAPOI) with
remote-controlled variable attenuators
Each Point of Interface module includes the duplexer, to separate/combine Downlink and
Uplink paths and two variable attenuators to make both Downlink and Uplink RF levels
separately adjustable.
A monitor port is available either for measurements or for external wireless modem
coupling.
UL
Point Of Interface module block diagram
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Point of Interface modules with separate Downlink and Uplink ports (without built-in duplexer)
are available as option.
Teko Telecom Point of Interface modules can be equipped either with manually adjustable
attenuators (POI-x models) or with remote-controlled attenuators (TAPOI-x models).
POI modules
POI modules include two rotary adjustable attenuators to make Downlink and Uplink RF
levels manually adjustable within a range of either 30dB, with 1dB step, or 10dB, with 1dB
step (POI-A10 models).
TAPOI modules
TAPOI modules include two automated variable attenuators to adjust Downlink and Uplink
RF levels via the Coverage System Supervision Module (TSPV) and Management Tools (OMT
webpages, OMC software).
SIRIUS: Teko Telecom Modular Coverage and Capacity System
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POI Modules Access Points•
Adjustableattenuators
Passive POI with built-in duplexerPassive POI without built-in duplexer
Adjustableattenuators
Label
(Connectors)
DL-OUT
UL-IN
BTS PORT
MONITOR
Adjustable
Description
Downlink path RF output
(SMA connector)
Uplink path RF input (SMA
connector)
RF connector (N type )
towards the signal source
(BTS, Node B or repeater)
Monitor port for
measurements or for external
wireless modem coupling
Description
Label
(Connectors)
DL-OUT
UL-IN
BTS PORT DL
BTS PORT UL
Description
Downlink path RF output
SMA connector
Uplink path RF input SMA
connector
Input RF connector from the
signal source - BTS, Node B
or repeater (N type)
Output RF connector to the
signal source - BTS, Node B
or repeater (N type)
attenuators
DL OUTDownlink path RF level adjustable attenuator (0÷30dB or 0÷10dB - 1 dB step)
UL INUplink path RF level adjustable attenuator (0÷30dB or 0÷10dB - 1 dB step)
SIRIUS: Teko Telecom Modular Coverage and Capacity System
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TAPOI Modules Access Points•
TAPOI with built-in duplexer
Label
Description
(Connectors)
DL OUTDownlink path RF output (SMA connector)
UL INUplink path RF input (SMA connector)
BTS PORT
MONITOR
Label
RF connector (N type ) towards the signal source (BTS, Node B
or repeater)
Monitor port for measurements or for external wireless modem
coupling
Description
(LEDs)
ON
TAPOI Module operating status green LED
ON when power supply is present
TAPOI Module alarm status LED:
OFF: regular operation
Blinking Orange: presence of active alarms with warning
ALM
severity level (4)
Orange: presence of active alarms with minor severity level (3)
Blinking Red: presence of active alarms with major severity
level (2)
Red: presence of active alarms with critical severity level (1)
SIRIUS: Teko Telecom Modular Coverage and Capacity System
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Teko Telecom Digital Donor Front End•
The Digital Donor Front End Module is the single-band/single-operator System RF interface
towards a Donor Antenna. No physical connections are required between the DFE and the
cellular network: the Donor Antenna provides the connection to a BTS or NodeB over an air
link.
Coverage Systems can be equipped with one or more Donor Front End modules to make
multiple congurations available: single operator (single band / multi-band) and multi-
operator (single-band / multi-band).
SIRIUS: Teko Telecom Modular Coverage and Capacity System
A single-band single-operator modular O-air Repeater can be set up combining a Digital
Donor Front End Module and a Service Front End (Teko Telecom single-band/multi-operator
interface towards a Service Antenna). Up to 4 Donor Front End Modules can be connected to
a single Service Front End to provide a single-band 4-operator modular O-air Repeater.
Digital Donor Front End Modules can also be used to drive Optical Systems: the Digital Donor
Front End Module allows Optical Systems to be driven without the need of a dedicated BTS or
Node B. A donor antenna picks-up the signal and the Optical System acts as a repeater with
distributed Service antennas connected to the Remote Units. Service Front End subracks can
be connected to DFE modules to provide coverage to the area next to the Master Unit site.
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Each DFE module hosts the duplexer, to be connected to the Donor Antenna to separate/
combine downlink and uplink paths.
In downlink the signal from the Donor Antenna is preamplied by a Low Noise Amplier and
converted into an IF signal by a downconverter. The selection of the band of frequencies or
channels to be extended is handled by a digital lter.
The digital lter can manage 1 variable band or 2 variable sub-bands.
An upconverter converts the IF signal into the RF output signal.
In uplink the signal from the Service Front End Subrack or from the Optical System is converted
into an IF signal by a downconverter, ltered and re-converted into an RF signal, amplied by
a power amplier and re-transmitted to the signal source.
DL RF
Out
Donor
Antenna
Port
DUPLEXER
LNA
DIGITAL FILTER
UL RF
PA
DIGITAL FILTER
+12V+1.8V+3.3V
PDC/DC
RS485
28VDC
In
FANS
Digital Donor Front End Module block diagram
SIRIUS: Teko Telecom Modular Coverage and Capacity System
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Digital Donor Front End Module Access Points
Let us repeat !
Label
Description
(Connectors)
DL
UL
Downlink path RF output (SMA connector) to Service Front End
or Fiber Optic Modules
Uplink path RF input (SMA connector) from Service Front End
or Fiber Optic Modules
DONOR ANTDonor Antenna Port (N type connector)
Label
Description
(LEDs)
ON
Digital Donor Front End Module operating status green LED:
ON when power supply is present
Digital Donor Front End Module alarm status LED:
OFF: regular operation
Blinking Orange: presence of active alarms with warning
ALM
severity level (4)
Orange: presence of active alarms with minor severity level (3)
Blinking Red: presence of active alarms with major severity
level (2)
Red: presence of active alarms with critical severity level (1)
SIRIUS: Teko Telecom Modular Coverage and Capacity System
Teko Telecom Service Front End Subrack is a single-band/multi operator equipment, driven
by Digital Donor Front End Modules and connected to a Service Antenna to provide wireless
signal to the area to be covered. The equipment is available in four dierent power classes:
Very High, High, Medium and Low.
A single-band single-operator modular O-air Repeater can be set-up combining a Digital
Donor Front End Module and a Service Front End. Up to 4 Donor Front End Modules can
be connected to a single Service Front End subrack to provide a single-band 4-operator
Repeater.
The Service Front End subrack can also be used in Optical Systems to provide coverage to the
area adjoining the Master Unit site.
The SFE 19”/2U subrack hosts the duplexer, to be connected to the Service Antenna to
separate/combine Downlink and Uplink paths.
In Downlink the signals from the Donor Front-End Modules are combined and amplied by a
Power Amplier.
In Uplink, the RF signal from the Service antenna is amplied by a Low Noise Amplier (LNA)
and split to feed up to 4 Donor Front-End Modules.
Auxiliary ports are available to drive an Optical System.
From DFEs
To Optics
To DFEs
From Optics
DL in1
DL in2
DL in3
DL in4
DL out
UL out1
UL out2
UL out3
UL out4
UL in
4:1
Digital
Attenuator
4:1
Digital
Attenuator
Digital
Attenuator
Digital
Attenuator
+3.3V +5V
PDC/DC
RS485
PA
Service
Duplexer
LNA
FANS
28VDC
Antenna
Port
SIRIUS: Teko Telecom Modular Coverage and Capacity System
Service Front End Module block diagram
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Service Front End Module Access Points
Let us repeat !
Label
Description
(Connectors)
DL TO OPTDownlink path RF output (SMA connector) - to Optics
UL FROM OPTUplink path RF input (SMA connector) - from Optics
SERVICE ANTService Antenna Port (N type )
DL
DFE1
UL
DL
DFE2
UL
DL
DFE3
UL
DL
DFE4
UL
Downlink path RF input (SMA connector) - from Digital Donor
Front End 1
Uplink path RF output (SMA connector) - to Digital Donor Front
End 1
Downlink path RF input (SMA connector) - from Digital Donor
Front End 2
Uplink path RF output (SMA connector) - to Digital Donor Front
End 2
Downlink path RF input (SMA connector) - from Digital Donor
Front End 3
Uplink path RF output (SMA connector) - to Digital Donor Front
End 3
Downlink path RF input (SMA connector) - from Digital Donor
Front End 4
Uplink path RF output (SMA connector) - to Digital Donor Front
End 4
SIRIUS: Teko Telecom Modular Coverage and Capacity System
Label
(LEDs)
LED
Description
Service Front End subrack general operating status LED
Green: no alarm
Blinking Orange: presence of active alarms with warning
severity level (4)
Orange: presence of active alarms with minor severity level (3)
Blinking Red: presence of active alarms with major severity
level (2)
Red: presence of active alarms with critical severity level (1)
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