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CELLULAR FIBER OPTICAL
EXTENDER
(Donor & Server Units)
OPERATION
INST RUCTION MANUAL
MODEL 51483-C
MD Offic e :
19516 Amaranth Drive
Germantown, MD 20874
Phone: 301-540-0700
Fax: 301-540-5743
NJ Office:
464 Hudson Te rrace
Englewood Cliffs, NJ 07632
Phone: 201-227-0066
Fax: 201-227-0067
Email: mail@aerocomminc. com
http://www.aerocomminc.com
ALL INFORMATION CONTAINED IN THIS DOCUMENT IS PROPRIETARY TO AEROCOMM, AND
SHALL NOT BE RELEASED, DISCLOSED OR DUPLICATED FOR ANY PURPOSE OTHER THEN
EVALUATION, INSPEC TION, OR MAINTENANCE OF EQUIPMENT DELINEATED HEREIN.
AEROCOMM IS NOT RESPONSIBLE FOR ANY EQUIPMENT R EPAIRED OR ALTERED BY PERSONS
NOT AUTHORIZED BY AEROCOMM, OR NOT IN ACCORDANCE WITH INSTRUCTIONS FURNISHED
BY AEROCOMM. AEROCOMM IS NOT RESPONSIBL E FOR EQUIPMENT RENDERED DEFECTIVE AS
A RESULT OF MISUSE, IMPROPER REPAIR, OR ABNORMAL CONDITIONS OF OPERATION, NOR
DOES AEROCOMM ASSUME ANY LIABILITY FOR ANY CONSEQUENTIAL DAMAGE CAUSED BY
SUCH EQ UI PMENT.
SERVICE CONTRACTS OR CUSTOMER ASSISTANCE AGREEMENTS ARE AVAILABLE FOR
AEROCOMM PRODUCTS THAT REQUIRE MAINTENANCE AND/OR REPAIR. AEROCOMM ALSO
HAS AVAILABLE SERVICE AND CONSULTATION CONTRACTS FOR ENTIRE SYSTEMS
CONFIGURATION.
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CELLULAR FIBER OPTICAL
EXTENDER
MODEL 51483-C
(824-849MHz: 869-894MHz)
AEROCOMM
AEROCOMM
A Wireless Systems Company
F/O TRX INDICATORS
LASE R
F/O
PW R
FO IN
FO OUT
ALARM INDICATORS
LNA
PW R
LNA
F/O
21
AMP
A Wireless Systems Company
F/O TRX INDICATORS
F/O
FO IN
ALARM INDICATORS
PW R
F/O
AMP
RF OUT
LASE R
PW R
FO OUT
LNA
LNA
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RF OUT
RF OVER FIBER
PCS SERVER
MODE L 51081 -02 -45
POWER
ON
FUSE
OFF
RF OVER FIBER
SMR SERVER
MODE L 51081 -02 -47
POWER
ONFUSE
OFF
A Wireless Systems Company
AEROCOMM
FO IN
AEROCOMMA Wireless Systems Company
FO IN
F/O TRX INDICATORS
F/O
F/O TRX INDICATORS
F/O
LASE RPW R
FO OUT
RF IN
LASE RPW R
FO OUT
RF IN
RF OVER FIBER
PCS SERVER
MODE L 51081 -02 -45
BTS
INTERFACE
POWER
ON
FUSE
OFF
RF OVER FIBER
SMR SERVER
MODE L 51081 -02 -47
BTS
INTERFACE
POWER
ON
FUSE
OFF
DONOR SERVER
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TABLE OF CONTENTS
I. INTRODUCTION...........................................................................................................4
PURPOSE OF MANUAL:..............................................................................................4
MANUAL OUTLINE.....................................................................................................4
GENERAL SYSTEM OVERVIEW:..............................................................................5
II. SPECIFICATIONS.........................................................................................................6
GENERAL SPECIFICATIONS......................................................................................6
Service: CELLULAR..................................................................................................6
SU B- ASSEMB LY SPECI F IC A T IONS :.........................................................................7
AC231 .......................................................................
51099 LNA..................................................................................................................8
51211 LNA..................................................................................................................8
51098 LNA..................................................................................................................9
20dB Attenuator..........................................................................................................9
6dB Attenuator............................................................................................................9
Duplexer....................................................................................................................10
TX Filter....................................................................................................................10
RX Filter....................................................................................................................10
III. INSTALLATION.......................................................................................................11
RF CABLE CONNECTIONS.......................................................................................11
FIBER OPTICAL CABLE CONNECTIONS...............................................................11
IV. OPERATION OF EQ UIPME N T ...............................................................................12
V. MAINTENA NC E SCHED ULE...................................................................................13
CABLE INSPECTIONS:..............................................................................................13
ENCLOSURE INSPECTIONS:....................................................................................13
LED INSPECTIONS:....................................................................................................13
VI. THEORY OF OPERATION......................................................................................14
VII. TROUBLESHOOTING............................................................................................15
SERVER UNIT..............................................................................................................15
DONOR UNI T..............................................................................................................16
VIII. RECOMMENDED SPARES..................................................................................17
Error! Bookmark not defined.
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I. INTRODUCTION
PURPOSE OF MANUAL:
The purpose of this manual is to outline the installation, describe the operation,
and assist in the maintenance and trouble-shooting of the CELLULAR Fiber Optical
Extender, Model 51483-C.
MANUAL OUTLINE
Section II:
Fiber Optical Extender. This section outlines the general, mechanical and
electrical specifications including the module specifications (sub-assemblies).
Section III:
Fiber Optical Extender, site requirements, and equipment initialization.
Section IV:
Section V:
CELLULAR Fiber Optical Extender.
Section VI:
and modules of CELLULAR Fiber Optical Extender. This section is designed to
aid in understanding of the CELLULAR Fiber Optical Extender.
Section VII:
the troubleshooting of a CELLULAR Fiber Optical Extender. This section is
designed to guide a technician in locating system fault(s) to the module. Included
in the section is a list of recommended test equipment.
Section II covers the general specification of the CELLULAR
Section III covers the instructions for installing the CELLULAR
Section IV covers Operation of Equipment.
Section V is the recommended schedule of periodic maintenance of
Section VI covers the general “Theory of Operations” of the logic
Section VII consists of diagrams, tables and procedures to assist in
Section VIII:
CELLULAR Fiber Optical Extender.
Section VIII lists the recommended spare parts for the
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GENERAL SYSTEM OVERVIEW:
The AeroComm, Inc. Fiber Optic Booster Amplifier (Model#51483-C) can be
used where CELLULAR Carrier Service is required but not accessible due to long or
difficult coaxial cable runs. It eliminates costly construction using coaxial cable. The
AeroComm, Inc. Model#51483-C converts the Carrier RF signal, enabling the use of
Fiber Optic Cable which is easily routed to inaccessible areas and has much lower loss,
where it is then reconverted back to Carrier RF signal.
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II. SPECIFICATIONS
GENERAL SPECIFICATIONS
Service: CELLULAR
Frequency Range: Uplink: 824-849 MHz Downlink: 869-894 MHz
Noise Figure: 6.3 dB Typical 7.0dB Typical
Gain: 51 dB Min. 51dB Min.
Delay: 5usec/Km
Output Power: +22 dBm +23 dBm
Input Power (No Damage): -30 dBm Max -30 dBm Max
Power Consumption: 1.2 A @ 110 VAC Per Donor/Server
Weight: 21 lbs.
Temperature: -25C to + 75 C
Size: 19” Rack Mount Unit, 4U (7”H) x 18”
RF Connectors: N-Female
Fiber Optic Connectors: FC/APC
Cable: 9/125 mm Single Mode FO Cable
Enclosure: 19” Rack Mount
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SU B-ASSEMBLY SPEC I FI C ATIONS:
RF TO FIBER MODULE
Parameter Min Typical Max
Wavelength, peak: 1520nm
1280nm
Bandwidth: 50MHZ 2000MHZ
Frequency Flatness:
(800-2000MHZ)
In & Out VSWR: 1.5:1 1.8:1
RF Isolation, In-band: 40
Spur Free Dynamic Range:
3/2
103dB/HZ
RF Link Gain: -2dB 0dB +2dB
Noise Figure WM option
WA option
WB option
Input 3rd Order Intercept
WM option
WA option
WB option
Absolute Maximums
Operating Temperature: -30°C to +75°C
Storage Temperature: -40°C to +85°C
Maximum RF Input to Transmitter: +10dBm
Maximum Optical Input to Receiver: 4mW
D.C. Supply Voltage: 12 volts +\-5%
1550nm
1310nm
+ / - 1.5dB
106dB/HZ
34dB
38dB
42dB
+22dBm
+26dBm
+29dBm
1570nm
1360nm
3/2
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51099 LNA
Parameter Min Typical Max
Gain: 13dB 14.5dB
Noise Figure: 1.5dB 1.8dB
VSWR: 1.5:1 / 1.3:1
OP1dB: +16.5dBm
Input IP3: +15dBm
Reverse Isolation: 23dB
Bias Current: 50mA 100mA
Input Voltage: +10VDC +15VDC +30VDC
Absolute Maximum Ratings
Input Power: +17dBm
Operating Temperature: -30°C to +60°C
Storage Temperature: -40°C to +85°C
51211 LNA
Parameter Min Typical Max
Gain: 35dB 36dB
Gain Flatness: +/- 0.5dB +/- 1dB +/- 1.2dB
Noise Figure: 1.35dB 1.5dB
In / Out VSWR: 1.5:1 / 1.2:1
OP1dB: +22.5dBm +23dBm
Input IP3: +36dBm +41dBm
Reverse Isolation: 45dB
Bias Current: 125mA 200mA
Input Voltage: +10VDC +13.5VDC +17VDC
Absolute Maximum Ratings
Input Power: +17dBm
Operating Temperature: -30°C to +60°C
Storage Temperature: -40°C to +85°C
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51098 Power AMP
Parameter Min Typical Max
Gain: 28.5dB 30dB 31dB
Gain Flatness: +/- 0.4dB +/- 1.2dB
Noise Figure: 2.3dB 3.7dB
In / Out VSWR: 1.5:1 / 1.2:1
OP1dB: +35dB +36dBm
Input IP3: +50dbm +52dBm
Input Voltage: +12VDC +13.5VDC +18VDC
Bias Current: 1600mA 2000mA
Operating Temperature -20°C +60°C
Absolute Maximum Ratings
VCC: +20VDC
Input Power: +5dBm
Current: 2200mA
Operating Temperature: -30°C to +70°C
Storage Temperature: -40°C to +85°C
20dB Attenuator
P/N: BW-S20W2
Frequency: DC-18GHZ
Accuracy:
VSWR: L DC-4GHZ 1.20
M 4-8GHZ 1.25
U 8-12.4GHZ 1.30
Power: 2W
±0.60
6dB Attenuator
P/N: BW-S6W2
Frequency: DC-18GHZ
Accuracy:
VSWR: L DC-4GH 1.20
M4-8GH 1.25
U 8-12.4GHZ 1.30
Power: 2Watts
±0.40
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Duplexer
P/N: 60024
Receive: 821-851MHz
Transmit: 866-895MHz
Passband Insertion Loss: 1.0dB maximum
Channel to Channel Isolation: 65dB minimum
Maximum Transmit Power Handling:
CW 20 watts
Peak Instantaneous 80 watts
Passband Return Loss: 15dB minimum
Operating Temperature: -30 to +70°C
Dimensions: 2.00”W x 2.97”D x 5.00”H
Connectors: SMA- Female
TX Filter
P/N: 5BCR12C-882.5/33-D
Passband: 869-894MHZ
3dB Passband: 34MHZ
Passband Insertion Loss: 2.5dB maximum
Rejection:
DC - 849MHZ 60dB minimum
849 - 859MHZ 30dB minimum
914 – 3xFoMHZ 40dB minimum
Passband Return Loss: 15dB minimum
VSWR: 1.5:1 max.
Connectors: SMA- Female
RX Filter
P/N: 5BCR12C-840.5/33-D
Passband: 826-851MHZ
3dB Passband: 34MHZ
Passband Insertion Loss: 2.5dB maximum
Rejection:
DC - 806MHZ 60dB minimum
806 - 816MHZ 30dB minimum
871 - 3xFoMHZ 40dB minimum
Passband Return Loss: 15dB minimum
VSWR: 1.5:1 max.
Connectors: SMA- Female
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III. INSTALLATION
The CELLULAR Fiber Optical Extender is housed in a 19” Rack Mount
enclosure. Refer to Figure 1 for the installation block diagram.
RF CABLE CONNECTIONS
!
The RF cable from Donor Antenna to the DONOR UNIT is connected to female NType Connector on the CELLULAR DONOR front panel RF PORT.
!
The RF cable from Server Antenna to the SERVER UNIT is connected to female NType Connector on the CELLULAR SERVER front panel RF PORT.
FIBER OPTICAL CABLE CONNECTIONS
The FC/APC to FC/APC fiber cables is connected between Donor and Server front panel.
!
Donor FO OUT connects to the Server FO IN.
!
Donor FO IN connects to the Server FO OUT.
"
Caution:
mated properly the connector will not mate. Extreme caution must be maintained to
avoid touching the end of the fiber optic connector and getting it dirty.
"
Coaxial and Fiber Optic cables are supplied by user.
The FC/APC Fiber Optic connector is a Keyed connector, if the Key is not
AC POWER CONNECTIONS
Connect AC Line Cord to the 110VAC Power Sources.
CELLULAR FOEX
BLOCK DIAGRAM
LNA Aerocom m
RF
TX Filter TX Filter
TX
D upl exer
D onor Antenna
RX Filter RX Filter
RX
F/O TRX INDICATORS
F/O PWR LASER
F/O PWR LNA LNA
AMP 2 1
51098
Power AM P
Aerocom m
DONOR UNIT SERV ER UNIT
FO OUTFO IN
51211
51099
6dB ATT
RF PORT
20dB ATT
COMM PORT COMM PORT
INPUT
RF / FO
Trance ive r
Anacom
A C231
RF
OUTPUTFOINPUT
RF OVE R F IBER
CE L L DO NO R
MODEL 51483-02-28
POWE R
FUSE ON
OUTPUT
OFF
FO
20dB ATT 6dB ATT
FO
RF
INPUT
OUTPUT
RF / FO
Trance ive r
Anacom
A C231
RF
FO
INPUT
OUTPUT
51099
LNA Aerocom m
51211
LNA Aerocom m
F/O TRX INDICATORS
F/O PWR LASER
ALARM INDICATORS
F/O PWR LNA LNA
AMP 2 1
51098
Power AM P
Aerocom m
FO OUTFO IN
RF PORT
TX
RX
RF OVE R F IBER
CELL SERVER
MODEL 51483-02-27
POWE R
FUSE ON
D upl exer
Server Antenn a
OFF
FIGURE 1
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IV. OPERATION OF EQUIPMENT
The CELLULAR Fiber Optical Extender requires no operator settings for
operation. It is designed for unattended operation.
The following is all that is necessary for operation:
Install
#
Connect
#
Turn-On
#
Watch LED
#
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V. MAINTENANCE SCHEDULE
The CELLULAR Fiber Optical Extender is designed for unattended operation
requiring minimal maintenance. General maintenance consists of equipment inspection
and operational tests. Periodical equipment tune-up and alignment is recommended.
CABLE INSPECTIONS:
The external and internal cables and connectors should be checked for
indication of corrosion.
ENCLOSURE INSPECTIONS:
The interior of the enclosures should be inspected for evidence of
condensation.
LED INSPECTIONS:
DONOR UNI T
#
POWER LED: ON
#
F/O TRX INDICATORS
F/O LED: ON
PWR LED: ON
LASER LED: ON
#
ALARM INDICATORS
F/O LED: GREEN
PWR AMP LED: OFF
LNA2 LED: OFF
LNA1 LED: OFF
#
COMM PORT
Normal: Closed (Pin1 & Pin2)
Fault: Open (Pin1 & Pin2)
SERVER UNIT
#
POWER LED: ON
#
F/O TRX INDICATORS
F/O LED: ON
PWR LED: ON
LASER LED: ON
#
ALARM INDICATORS
F/O LED: GREEN
PWR AMP LED: OFF
LNA2 LED: OFF
LNA1 LED: OFF
#
COMM PORT
Normal: Closed (Pin1 & Pin2)
Fault: Open (Pin1 & Pin2)
The performance of operat ions testing is recommended to be done semi-annually.
Operational testing will indicate equipment status, determining if an alignment is
necessary.
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VI. THEORY OF OPERATION
The CELLULAR Fiber Optical Extender has two channels, one is Down Link
frequencies from 869MHZ to 894MHZ, and the other is UP Link frequencies from
824MHZ to 849MHZ. Both Up Link and Down Link signals are converted from RF
signals to optical si gnals then through the fiber optical cable to the fa r end and converted
back to RF signa ls. The AeroComm, Inc. Fiber Opt ic Booster Amplifier (Model#51483C) can be used where CELLULAR Carrier Service is required but not accessible due to
long or dif fic u lt c o a xia l c a b le r un s. I t e l i mina t e s c os t ly c o n st r uc t io n us in g c o a xial c a ble .
The AeroComm, Inc. Model# 51483-C converts the Carrier RF signal to optical signals,
enabling the use of Fiber Optic Cable which is easily routed to inaccessible areas and has
much lower loss, where it is then reconverted back to Carrier RF signal.
Caution:
responsible for compliance could void the user’s authority to ope rate the device (CFR 47
section 15.2)
NOTE:
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in commercial environment. This equipment generates, uses and can radiate
radio frequency ene rgy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to case harmful interference in which case the
user will be required to correct the interference at this own expense.
The user that changes or modifications not expressly approved by the party
This equipment has been tested and found to comply with the limits for a Class
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VII. TROUBLESHOOTING
This Troubleshooting Procedure has been developed for the use of a trained
technician with knowledge of troubleshooting methodology in order to isolate faults to
the unit level.
SERVER UNIT
Problem Solution
1. Power LED is off
a) Check Fuse, if fuse is ok go to next step.
b) Check Power Supply 110VAC input, if 110VAC is
present, go to next step.
c) Check Power Supply +12VDC output. If +12 volt is not
present, replace the Server Unit.
2. PWR LED is off
(F/O TRX INDICATORS)
3. LASER LED is off
(F/O TRX INDICATORS)
4. F/O LED is off
(F/O TRX INDICATORS)
5. LNA1 LED is on
(ALARM INDICATORS)
6. LNA2 LED is on
(ALARM INDICATORS)
7. PWR AMP LED is on
(ALARM INDICATORS)
8. F/O LED is red
(ALARM INDICATORS)
a) Replace the Server Unit.
a) Replace the Server Unit.
a) to Problem 8.
a) Replace the Server Unit.
a) Replace the Server Unit.
a) Replace the Server Unit.
a) Check the FC/APC Connectors and insure they are
mated properly. Using a cotton swab cleaner, and alcohol
clean the FC/APC connector. If F/O LED is still red, go
to next step.
b) Using a short FC/APC to FC/APC Fiber Optic
Patchcord connect between FO IN and FO OUT. If LED
is still red, replace the Server Unit. If LED is green go to
next step.
b) Check Fiber Optic Cable by using Fiber Test Meter, if
Fiber Optic Cable is ok, the problem is on the Donor
Unit.
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Problem Solution
1. Power LED is off
DONOR UNIT
a) Check Fuse, if fuse is ok go to next step.
b) Check Power Supply 110VAC input, if 110VAC is
present, go to next step.
c) Check Power Supply +12VDC output. If +12 volt is not
present, replace the Donor Unit.
2. PWR LED is off
(F/O TRX INDICATORS)
3. LASER LED is off
(F/O TRX INDICATORS)
4. F/O LED is off
(F/O TRX INDICATORS)
5. LNA1 LED is on
(ALARM INDICATORS)
6. LNA2 LED is on
(ALARM INDICATORS)
7. PWR AMP LED is on
(ALARM INDICATORS)
8. F/O LED is red
(ALARM INDICATORS)
a) Replace the Donor Unit.
a) Replace the Donor Unit.
a) to Problem 8.
a) Replace the Donor Unit.
a) Replace the Donor Unit.
a) Replace the Donor Unit.
a) Check the FC/APC Connectors and insure they are
mated properly. Using a cotton swab cleaner, and alcohol
clean the FC/APC connector. If F/O LED is still red, go
to next step.
b) Using a short FC/APC to FC/APC Fiber Optic
Patchcord connect between FO IN and FO OUT. If LED
is still red replace the Donor Unit. If LED is green go to
next step.
b) Check Fiber Optic Cable by using Fiber Test Meter, if
Fiber Optic Cable is ok, the problem is on the Server
Unit.
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VIII. RECOMMENDED SPARES
We recommend units be sent to factory for repair or replacement.
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