three sector rf distribution system
TRANSCRIPT
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24 Base Radios24 Base Radios24 Base Radios24 Base RadiosThree SectorsThree SectorsThree SectorsThree Sectors
3:1 Hybrid Combining3:1 Hybrid Combining3:1 Hybrid Combining3:1 Hybrid CombiningPower Monitor DisplayPower Monitor DisplayPower Monitor DisplayPower Monitor Display4 Rack Configuration4 Rack Configuration4 Rack Configuration4 Rack Configuration
Main Duplexed RFDS SystemGeneral Description andTechnical Information
2
Block Diagrams 3
General Description 4-5
Receiver Multi Coupler 6-9
Triple Duplexer 10-11
Transmitter HybridCombiner
12-13
Dual Feed Breaker Panel 14
Contents
Communication Components Inc.
Three Sector, 24 Base RadioRF Distribution System (RFDS)For Use with Motorola 4-BR Primary Rack
Three SectorThree SectorThree SectorThree Sector
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Page 4 Main Duplexed RFDS Hybrid Combining System
The CCI 3-Sector, 24 Base Radio, RF Distribution System provides the most efficient andflexible means of deploying a three sector site with 24 Base Radio capacity. The 24 Base Ra-dio RF distribution System was specifically optimized to work in conjunction with the Motorola
4 Base Radio primary Rack with self contained iSC and iMU. This configuration results in acomplete 3-Sector, 24 Base Radio system using only four Racks: One Motorola 4-BR PrimaryRack, two CCI 6-BR Primary Racks and one CCI 8-BR Multi-sector Expansion Rack. The Mo-torola Primary Rack contains the iMU and dual iSC, a three branch Receiver Multi-coupler, Dual
3:1 Hybrid Combiners and room for four Base Radios. The CCI Duplexed RFDS PrimaryRacks contain a three branch Receiver Multi-Coupler capable of providing 9 outputs per
branch, a Triple Duplexer as-sembly with integrated powermonitoring circuit and threefront panel Power/ VSWRLCD displays, Dual 3:1 Hy-
brid Combiners, a dedicatedExpansion Breaker Paneland all the necessary receive(Rx), transmit (Tx), 5 MHz /1PPS, Ethernet, alarm andpower cabling to install up to6 base radios within the rack.The CCI Multi-sector Expan-sion Rack contains a threebranch Receiver Multi-coupler, three 2:1 Hybrid
Combiners and a dedicatedExpansion Breaker Paneland all the necessary receive(Rx), transmit (Tx), 5 MHz /1PPS, Ethernet, alarm andpower cabling to install up to8 base radios within the rackunit. All Racks are poweredfrom the main -48 VDC bus.
An alarm output is provided
which is compatible with theEnvironmental Alarm System(EAS) in the iMU. The finalconfiguration provides 8Base Radios per Sector fora total of 24 Radios per Site.
Sector 3
2 Way
Combiner
Sector 2
2 Way
Combiner
BREAKER PANEL
BR5
RMC
BR7
BR8
BR7
BR8
BR7
BR8
BR6
Sector 3
Sector 1
Sector 2
TX
TX
TX
TX
TX
TX
To Motorola
(Sector 1)
3-way
Hybrid Combiner
Sector 1
2 Way
Combiner
TX
TX
To Motorola
(Sector 1)
Duplexer 3 Tx Input
From Motorola
(Sector 1)
Primary Rack RMC
RX1
RX2
RX3
RX1
RX2
RX3
RX1
RX2
RX3
RX1
RX2
RX3
RX 1 RX 2 RX 3
To CCI
(Sector 2)
Duplexer 3 Tx Input
To CCI
(Sector 3)Duplexer 3 Tx Input
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
From CCI
(Sector 3)
Primary Rack RMC
RX1
RX2
RX3
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
Sector 3
2 Way
Combiner
Sector 3
2 Way
Combiner
Sector 2
2 Way
Combiner
Sector 2
2 Way
Combiner
BREAKER PANEL
BR5
RMC
BR7
BR8
BR7
BR8
BR7
BR8
BR6
Sector 3
Sector 1
Sector 2
TX
TX
TX
TX
TX
TX
To Motorola
(Sector 1)
3-way
Hybrid Combiner
Sector 1
2 Way
Combiner
Sector 1
2 Way
Combiner
TX
TX
To Motorola
(Sector 1)
Duplexer 3 Tx Input
From Motorola
(Sector 1)
Primary Rack RMC
RX1
RX2
RX3
RX1
RX2
RX3
RX1
RX2
RX3
RX1
RX2
RX3
RX1
RX2
RX3
RX1
RX2
RX3
RX1
RX2
RX3
RX 1 RX 2 RX 3
To CCI
(Sector 2)
Duplexer 3 Tx Input
To CCI
(Sector 3)Duplexer 3 Tx Input
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
RX1
RX2
RX3
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
RX1
RX2
RX3
From CCI
(Sector 3)
Primary Rack RMC
RX1
RX2
RX3
From CCI
(Sector 3)
Primary Rack RMC
RX1
RX2
RX3
RX1
RX2
RX3
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
From CCI
(Sector 2)
Primary Rack RMC
RX1
RX2
RX3
RX1
RX2
RX3
Commun icat io n Compo n en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
Three Sector, 24 Base Radio, RF Distribution System_
Three Sector, 8 Base Radio RFDS Expansion Rack
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Page 5
Commun icat io n Compo n en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
BR 1
BR 5
BR 7
HYBRID
COUPLER
HYBRID
COUPLER
3:1 HYBRID3:1 HYBRID3:1 HYBRID3:1 HYBRID
COMBINERCOMBINERCOMBINERCOMBINER
6 way 6 way
BR 2
BR 3
6 way
BR 4
3:1 HYBRID3:1 HYBRID3:1 HYBRID3:1 HYBRID
COMBINERCOMBINERCOMBINERCOMBINER
4 way 4 way 4 way
EXP1 EXP2 EXP3 EXP1 EXP2 EXP3EXP1 EXP2 EXP3
DUPLEXER
DETECTORTo
BR
DUPLEXER
DETECTORTo
BR
DUPLEXER
ANT
3
DETECTORTo
BR
ANT
1
ANT
2
From
Expansion Rack
Tx7
Tx8
Tx9 AMP AMP AMP
AMP AMP AMP
MAIN RFDS DUPLEXED RACKMAIN RFDS DUPLEXED RACKMAIN RFDS DUPLEXED RACKMAIN RFDS DUPLEXED RACK
BR 1
BR 5
BR 7
HYBRID
COUPLER
HYBRID
COUPLER
3:1 HYBRID3:1 HYBRID3:1 HYBRID3:1 HYBRID
COMBINERCOMBINERCOMBINERCOMBINER
6 way 6 way6 way
BR 2
BR 3
6 way6 way
BR 4
3:1 HYBRID3:1 HYBRID3:1 HYBRID3:1 HYBRID
COMBINERCOMBINERCOMBINERCOMBINER
4 way4 way 4 way4 way 4 way4 way
EXP1 EXP2 EXP3 EXP1 EXP2 EXP3EXP1 EXP2 EXP3
DUPLEXERDUPLEXER
DETECTORTo
BR
DUPLEXERDUPLEXER
DETECTORTo
BR
DUPLEXERDUPLEXER
ANT
3
DETECTORTo
BR
ANT
1
ANT
2
From
Expansion Rack
Tx7
Tx8
Tx9 AMP AMP AMP
AMP AMP AMP
MAIN RFDS DUPLEXED RACKMAIN RFDS DUPLEXED RACKMAIN RFDS DUPLEXED RACKMAIN RFDS DUPLEXED RACK
Main Duplexed RFDS Primary Rack_
CCIs Main Duplexed RF Distribution (RFDS) Rack offers severalkey advantages including:
! 9 Available Receive Output Ports for expanding up to 9 Base
Radios per Sector without additional Receiver Multi-couplers.! Front Panel Backlit LCD Display of Forward Power (FWD) and
VSWR for each Duplexer/ Antenna branch.
! Modular Hybrid Combiner design provides many combining op-tions including multiple 2:1, 3:1, 4:1 and 6:1 configurations.
! All Hybrid Combiners utilize dual junction isolators providing inexcess of 60 dB ANT-Tx isolation, minimizing the generation ofintermodulation products.
! Duplexer design provides additional rejection of 25 dB @ 869MHz to minimize interference with public safety bands.
Communication Components Inc.Main Duplexed RFDS Hybrid Combining System
Block Diagram
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Electrical Specification for RMC
Main Duplexed RFDS Hybrid Combining System
Commun icat i on Compon en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
3 Branch Main RFDS Receiver Multi-Coupler (RMC) Specification
The Receiver Multi-Coupler provides three independentchannels which expand a single receive signal into fourports. One output from each four port channel is fed into
a secondary multi-coupler which provides six receive sig-nal outputs per channel. The module contains two hotswappable redundant power supplies (DC/DC convert-ers) connected in parallel with reverse polarity, currentlimit and over-voltage protection. The power supplies con-vert the -48 VDC (input) to a regulated voltage required topower the six Low-Noise Amplifiers (LNAs). The output of
each LNA is then divided equally into four and six isolated ports using a precision balanced re-sistive Power Splitter. The Receiver Multi-Coupler contains all the required monitoring andalarm circuitry for proper operation in the system. A three pin Mate-N-Lock II connector locatedin the rear of the unit is used for the Breaker Panel trip alarm input. This input, along with the
internal Amplifier fail alarm and Power Supply fail alarm are then internally cabled to an 8 pinTELCO jack mounted on the back of the module. This jack provides a compatible connectionwith the Environmental Alarm System (EAS) located in the iMU.
4-Way Primary Multi-coupler 6-Way Expansion Multi-coupler
Number of Branches Three Three
Number of Output Ports 4 per Branch 6 per Branch
Frequency Range 806-821 MHz 806-821 MHz
Gain 12 dB (+/- 0.5 dB) -1.0 dB (+/- 0.5 dB)
Amplifier Noise Figure 1.5 Maximum, 1.2 Typical 1.5 Maximum, 1.2 Typical
IP 3 Output +24 dBm Minimum +24 dBm Minimum
Input/Output VSWR 1.2:1 Maximum 1.2:1 Maximum
Isolation 20 dB Minimum 20 dB Minimum
Maximum RF Input Power +10 dBm +10 dBm
Power Supply Dual Redundant in Parallel
DC Power Input -48 VDC (-36 to 72 VDC Range)
Input Protection Fused and Reverse Polarity
Output Protection Voltage and Current Limit
Monitoring and Alarms Front Panel operational state LED for Amplifiers & Power Supplies
Monitoring Signals Dry Form A contact closure alarm for Amplifiers & Power Supplies. Fault detected as OPEN contact.
Page 6
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Communication Components Inc.
Alarm Pin-Out (RJ -48/ 8 PIN) for RMC
Main Duplexed RFDS Hybrid Combining System
Commun icat i on Compon en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
PIN # Description
1 Breaker Alarm Closure Pin #1
2 Breaker Alarm Closure Pin #2
3 Rx Amplifier Failure Closure Pin #1
4 Unused
5 Rx Amplifier Power Supply Failure Closure Pin #1
6 Rx Amplifier Failure Closure Pin #2
7 Unused
8 Rx Amplifier Power Supply Failure Closure Pin #2
Mechanical Specification for RMCDimensions
Height 1.75 (1U)
Width Standard 19 Rack Mount
Depth 18
RF Input SMA-Type Female
RF Output BNC-Type Female
-48VDC Input Mate-N-Lock II Connector
Breaker Panel Alarm Input Mate-N-Lock II Connector
Alarm Output RJ-48/ 8 Pin Connector
P o w e r
S u p p l y1
P o w e r S u p p l y
2
A l a r m /
M o n i to r
C o n t r o l
A l a r m
O u t
D C
I n
A m p .
1
R x 1
4 - W a y
S p l i t te r
A m p .
2
4 - W a y
S p l i tt e r
A m p .
3
4 - W a y
S p l i tt e r
4 - W a y M u l t i - c o u p l e r
A m p .
4
6 - W a y
S p l i tt e r
A m p .
5
6 - W a y
S p l i t te r
A m p .
6
6 - W a y
S p l it te r
R x 2 R x 3
R x 3 O U T R x 2 O U T R x 1 O U T
6 - W a y M u l t i - c o u p l e r
E X P 1 E X P 2 E X P 3
P o w e r
S u p p l y1
P o w e r S u p p l y
2
A l a r m /
M o n i to r
C o n t r o l
A l a r m
O u t
D C
I n
A m p .
1
R x 1
4 - W a y
S p l i t te r
4 - W a y
S p l i t te r
A m p .
2
4 - W a y
S p l i tt e r
4 - W a y
S p l i tt e r
A m p .
3
4 - W a y
S p l i tt e r
4 - W a y
S p l i tt e r
4 - W a y M u l t i - c o u p l e r
A m p .
4
6 - W a y
S p l i tt e r
A m p .
5
6 - W a y
S p l i t te r
A m p .
6
6 - W a y
S p l it te r
R x 2 R x 3R x 3
R x 3 O U T R x 2 O U T R x 1 O U T
6 - W a y M u l t i - c o u p l e r
E X P 1 E X P 2 E X P 3
Block Diagram
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Page 8 Main Duplexed RFDS Hybrid Combining System
Commun icat i on Compon en ts I nc .Tel: 201-342-3338 Fax: 201-342-3339
3 Branch 6-Way Selectable Gain _Receiver Multi-Coupler Specification
The Receiver Multi-Coupler provides three independent channelswhich expand a single receive signal into a maximum of six ports. The
module contains two hot swappable redundant power supplies (DC/DC converters) connected in parallel with reverse polarity, current limitand over-voltage protection. The power supplies converts the -48 VDC(input) to a regulated voltage required to power the three Low-Noise
Amplifiers (LNAs). The output of each LNA is then divided equally intosix isolated ports using a precision balanced resistive Power Splitter.The overall Gain of the Receiver Multi-Coupler is user selectable forcompatibility with both GEN4 and pre-GEN4 equipment.
The Receiver Multi-Coupler contains all the required monitoring and alarm circuitry for proper operationin the system. A three pin Mate-N-Lock II connector located in the rear of the unit is used for theBreaker Panel trip alarm input. This input, along with the internal Amplifier fail alarm and Power Supplyfail alarm are then internally cabled to an 8 pin TELCO jack mounted on the back of the module. The
jack provides the connection for alarm monitoring equipment located in the main rack.
Electrical Specification for RMC
Number of Branches Three
Number of Output Ports 6 per Branch
Frequency Range 806-821 MHz
Gain (Selectable) 1.5 dB or 4.0 dB (+/- 0.5 dB)
Amplifier Noise Figure 2.0 Maximum, 1.5 Typical
IP 3 Output +24 dBm Minimum
Input/Output VSWR 1.2:1 Maximum
Isolation 20 dB Minimum
Pre Select Filtering None
Maximum RF Input Power +10 dBm
Power Supply Dual Redundant in Parallel
DC Power Input -48 VDC (-36 to 72 VDC Range)
Input Protection Fused and Reverse Polarity
Output Protection Voltage and Current Limit
Monitoring and Alarms
Visual Front Panel operational state LED for Amplifiers & Power Supplies
Monitoring Signals Dry Form A contact closure alarm for Amplifiers & Power Supplies. Fault detected as OPEN contact.
Switch Power ON
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Communication Components Inc.Main Duplexed RFDS Hybrid Combining System
Alarm Pin-Out (RJ -48/ 8 PIN) for RMC
Power
Supply
1
Power
Supply
2
Alarm /
Monitor
Control
6-Way
Splitter
Amp.
1
Amp.
2Amp.
3
Alarm
Out
DC
In
RF 1
In
RF 2
In
RF 3
In
6-Way
Splitter
6-Way
Splitter
Commun icat io n Compon en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
Mechanical Specification for RMC
Dimensions
Height 1.75 (1U)
Width Standard 19 Rack Mount
Depth 18
Connections (rear access)
RF Input (1 per branch) SMA-Type Female
RF Output (6 per branch) BNC-Type Female
VDC Output Mate-N-Lock II ConnectorBreaker Panel Alarm Input Mate-N-Lock II Connector
Alarm Output RJ-48/ 8 Pin Connector
Expansion RMC Block Diagram:
PIN # Description
1 Breaker Alarm Closure Pin #1
2 Breaker Alarm Closure Pin #2
3 Rx Amplifier Failure Closure Pin #1
4 Unused
5 Rx Amplifier Power Supply Failure Closure Pin #1
6 Rx Amplifier Failure Closure Pin #2
7 Unused
8 Rx Amplifier Power Supply Failure Closure Pin #2
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Electrical Specification for Duplexer
Main Duplexed RFDS Hybrid Combining System
Commun icat i on Compon en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
Triple Duplexer with VSWR and Power Monitoring Display
The Triple Duplexer consists of three duplexers which pro-vide the required filtering of the transmit (Tx) and Receive
(Rx) signals and allow the transmit and receive signals toshare a common antenna (ANT) port. Each duplexer hasan integrated dual directional coupler which samples theforward (FWD) and reflected (REF) power at the antennaoutput. The sampled FWD and REF power are detected bythe power / VSWR monitoring circuit. A dedicated micro-processor is utilized for each duplexer to accurately cali-brate the measured forward and reflected power readings.The actual forward power and VSWR are then displayed ona backlit LCD display located on the front panel. A sepa-
rate display is provided for each duplexer / antenna port. In addition, the power / VSWR
monitoring circuit generates DC voltages that are proportional to the sampled forward (FWD)and reflected (REF) power level readings. These DC voltages are then fed into the lead baseradios located in the main rack in order to determine the actual forward and reflected powerreadings and interpolate the VSWR for each duplexer / antenna channel.
Parameter
Transmit (Tx) Frequency Range 851 MHz 866 MHz
Receive (Rx) Frequency Range 806 MHz 821 MHz
ANT-Rx Insertion Loss < 0.6 dB from 806 MHz 821 MHz
ANT-Rx Return Loss > 18 dB from 806 MHz 821 MHz
ANT-Rx Rejection > 10 dB @ 828 MHz
ANT-Rx Rejection > 85 dB @ 851 MHz 866 MHz
ANT-Tx Insertion Loss < 1.0 dB from 853 MHz 866 MHz
ANT-Tx Return Loss >18 dB from 853 MHz 866 MHz
ANT-Tx Rejection > 85 dB from 806 MHz 821 MHz
ANT-Tx Rejection > 60 dB from 824 MHz 849 MHz
ANT-Tx Rejection > 25 dB from 869 MHz 894 MHz
Average Power Handling 400 Watts AVG
Peak Power Handling 5000 Watts PIP
Operating Temperature 0 50 Degrees Celsius
Page 10
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Alarm / Monitor Pin-Out (25- PIN)
Mechanical Specification for Triple Duplexer
Commun icat i on Compon en ts I n c.Tel: 201-265-8882 Fax: 201-265-8922
DUPLEXER
POWER
SENSOR
CIRCUIT
(Rx1) OUT
PWR/ VSWR
DISPLAY
To (BR)
ANT 1
(Tx1) IN
DUPLEXER
POWER
SENSOR
CIRCUIT
(Rx1) OUT
PWR/ VSWR
DISPLAY
To (BR)
ANT 1
(Tx1) IN
DUPLEXER
POWER
SENSOR
CIRCUIT
(Rx3) OUT
PWR/ VSWR
DISPLAY
To (BR)
ANT 3
(Tx3) IN
DUPLEXER
POWER
SENSOR
CIRCUIT
(Rx3) OUT
PWR/ VSWR
DISPLAY
To (BR)
ANT 3
(Tx3) IN
DUPLEXER
POWER
SENSOR
CIRCUIT
(Rx2) OUT
PWR/ VSWR
DISPLAY
To (BR)
ANT 2
(Tx2) IN
DUPLEXER
POWER
SENSOR
CIRCUIT
(Rx2) OUT
PWR/ VSWR
DISPLAY
To (BR)
ANT 2
(Tx2) IN
Communication Components Inc.Main Duplexed RFDS Hybrid Combining System
Commun icat i on Compon en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
PIN # Description PIN # Description
1-3 NOT USED 11 ANT 3 FWD Power Monitor
4 GND 12 ANT 3 REF Power Monitor
5 ANT 1 FWD Power Monitor 13-17 NOT USED6 ANT 1 REF Power Monitor 18 GND
7 GND 19 GND
8 ANT 2FWD Power Monitor 20 GND
9 ANT 2 REF Power Monitor 21-25 NOT USED
10 GND
Dimensions
Height 8.75 (5U)
Width Standard 19 Rack Mount
Depth 18
Rx Output SMA-Type Female
Tx Input N-Type Female
ANT Output N-Type Female
-48VDC Input Mate-N-Lock II Connector
Block Diagram
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Main Duplexed RFDS Hybrid Combining System
Electrical & Mechanical Specification
The Hybrid Combiner system combines three transmit paths into onepath using a unique resistive high power combiner structure for threetransmit inputs. The TX1, Tx2 and TX3 transmit outputs are each ap-plied through a dual-stage isolator to the high power combiner hybridwith an integrated low-pass filter. An output on each arm of the powercombiner is terminated into a 150 Watt load. The entire arrangementresults in three transmitter (Tx) input ports per duplexer/ antennabranch. The combiner is installed in a 2U fan cooled tray within therack. Up to two units can be mounted side by side in a the tray unit for a
dual 3:1 combiner configuration. An optional 2-way reactive combiner is also available that mountsin the same tray unit. The 2-way combiner can be used to combine the output of both 3:1 com-biners resulting in six transmitter (Tx) input ports per duplexer/ antenna branch.
General Information
3-Channel Transmitter Hybrid Combiner
Commun icat io n Compo n en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
Frequency Range 850-870 MHz
Impedance 50 Ohms Nominal
Insertion Loss, TX to ANT 5.6 dB Max.
Isolation, TX to TX 80 dB Min
Isolation, ANT to TX 60 dB Min.
3rd Order Intermodulation
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Communication Components Inc.
Transmitter Hybrid Combiner Schematic
Transmitter Hybrid Combiner Mechanical Diagram (rear mount shown)
Commun icat i on Compon en ts I n c.Tel: 201-342-3338 Fax: 201-342-3339
Sector1
Tx 7
Tx 8
Tx 9
3-Way
Power
Combiner
ANTENNA
SECTOR 1
Tx 7
Tx 8
Tx 9
3-Way
Power
Combiner
ANTENNA
SECTOR 2
Sector2
Main Duplexed RFDS Hybrid Combining System
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89 Leuning StreetSouth Hackensack, NJ 07606
Tel: 201-342-3338
Fax: 201-342-3339
Email: [email protected]
Ordering Information
Communication ComponentsInc.
Www.cciproducts
.com
Mechanical Diagram
Dual Feed Breaker Panel
This EBTS Radio Expansion Breaker Panel provides all thenecessary power distribution for the Main Duplexed RF Distri-
bution System (RFDS) Hybrid Combining Racks. Separate Aand B feeds are provided to maintain system redundancy.Distribution includes all the necessary 9 pin and 3 pin Molexconnectors. A standard 3 pin alarm interface is also providedto indicate a tripped breaker condition.
Breaker # FeedSide
Amps Trip De-lay
Connector Pins
RFS-1
A
3 SLOW MOLEX MLX 3BR-2 25 SLOW MOLEX MLX 9
BR-4 25 SLOW MOLEX MLX 9
BR-6 25 SLOW MOLEX MLX 9
BR-8 25 SLOW MOLEX MLX 9
RFS-2 3 SLOW MOLEX MLX 3
BR-1 25 SLOW MOLEX MLX 9
BR-3 25 SLOW MOLEX MLX 9
BR-5 25 SLOW MOLEX MLX 9
B
BR-7 25 SLOW MOLEX MLX 9
Electrical Specification
3.000
3P
3P 3P
3P
9P9P 9P
17.500
RFS-2
SPARE
RFS-1
STATUS
BR-3 & BR-4 BR-1 & BR-2
ReturnB A-48 VDCB A
BR-5 & BR-6
3.000
OFF
ON
CCI
RB1-8P-V1
BR-2 BR-6 BR-8 RSF-1 BR-1 BR-3 BR-5
25A 25A 25A 3A 25A 25A 25A
RFS-2
3A
3.500
19.000
A
O
N
OFF
B
BR-7
25A25A
BR-4
9P
BR-7 & BR-8
! Model RFDS-860-24BR-1:
24- Base Radio, Three Sector
(8 Base Radios per Sector)RF Distribution System consisting
of two CCI Duplexed RFDS Pri-mary Racks and one CCI Three
Sector RF Expansion Rack