Radio Frequency Systems WINS-3900002 iDEN / TETRA Off-air-repeater User Manual

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800MHz-900MHz ADJUSTABLE BANDWIDTH
OFF-AIR REPEATERS
OR1-SBHP1-800
OR2-SBHP1-800
OR2-SBHP1-S800
OR1-SBHP1-900
OR2-SBHP1-900
OR1-SBHP1-900R
OR2-SBHP1-900R
Doc. code 91 080 0716F - Rel. 06
TECHNICAL HANDBOOK
Radio Frequency Systems
Kabelkamp 20
30179 Hannover, Germany
Tel.: +49 511 676 2731
Fax: +49 511 676 2515
E-mail: sales.europe@rfsworld.com
INDEX
1) SAFETY RULES ................................................................................................................................... 1
2) STANDARDS ........................................................................................................................................ 2
2.1) MANUFACTURE LABELS
2.2) SYMBOLS
3) GENERAL DESCRIPTION ................................................................................................................... 3
3.1) EXAMPLE: USE IN TUNNELS
3.2) OPERATING PRINCIPLE -800 / 900MHz ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
3.3) ATTACHED DOCUMENTS
4) INSTALLATION AND POWER-UP PROCEDURES............................................................................ 4
4.1) INSTALLATION
A - INITIAL CHECK
B - POSITIONING THE REPEATER
C - POWER SUPPLY SOURCE CONNECTIONS AND ALARMS CONNECTIONS
D.C. POWERED EQUIPMENT
AC POWERED EQUIPMENT (ALTERNATE CURRENT)
4.2) POWER-UP
4.3) CLOSING THE EQUIPMENT
4.4) ROUTINE MAINTENANCE
800MHz-900MHz Off-Air Repeaters (OR Series)
UPDATINGS
91 080 0716F – Rel.06
1
1) SAFETY RULES
1.1 Introduction
The equipment described in this technical handbook has been designed and tested in conformity of
international safety standards IEC215 / EN60215 and IEC950 / EN60950; the equipment has to be used
under the responsibility of specialised personnel only. In accordance with IEC215 / EN60215, adjustment,
maintenance and repair of the exposed equipment shall be carried out only by qualified personnel, who are
aware of the hazards involved. The minimum qualifications are established in the standard.
Final installation of the systems must fulfil the EMF emission levels, as requested by regulations in force
(recommendation n. 1999/519/EC).
WARNING: Installation Notes
Modular equipment, intended to be housed insidea rack cabinet, must be installed within a protected
access area only.
This area must be opportunely protected by security system that will exclude the entry, even if accidental, to
not authorized and trained personnel. Alternatively, the cabinet, in which the equipment is housed, must be
closed on all sides, to allow the access to internal parts to authorized personnel only
1.2 AC Power supply
When working on the equipment always make sure that the equipment is not connected to the mains
supply.
Before power up always make sure that the equipment is connected to earth by using the equipment
grounding bolt.
If it is necessary to fit an AC power supply plug to power cable, the User must observe the following colour
codes: LIVE terminal to BROWN lead NEUTRAL terminal to BLUE lead EARTH terminal to GREEN/YELLOW
lead The User must also ensure that the protective earth wire would be the last to break, should the cable be
subject to excessive strain.
1.3 Safety precautions
For the correct and safe use of the equipment it is essential that both operation personnel and services
personnel follow generally accepted safety procedures (see IEC Publications 215: "Safety measures for
radio transmitting equipment" and 61010-1: "Safety requirements for electrical equipment for measurement,
control, and laboratory use") in addition to the safety precautions specified in this technical handbook.
Specific warnings and caution statements, where applicable, can be found throughout this technical
handbook. Warning and caution statements and/or symbols are marked on the equipment where is
necessary. (see also ANNEX n°1).
As far as the equipment safety devices are concerned please remind that: -periodic functional check shall be
carried out on protective devices; -functional check shall be carried out on protective devices, when they
have operated under fault conditions; -safety devices shall not be altered or disconnected except for
replacement; -safety circuit shall not be modified.
SAFETY RULES
Page 1
ENG
1.4 Caution and warning statements
Caution It's used to indicate the correct operation and maintenance, in order to prevent damage or
destruction of equipment or other property. Warning of danger Used to indicate the potential hazard that
requires correct procedures or practices in order to avoid personal injury.
1.5 Impaired safety protection
Whenever it is likely that safe operation is impaired, the apparatus must be in-operative and secured against
unintended operation. The appropriate servicing staff authority must be informed.
For instance, the safety is likely to be impaired if the equipment fails to perform the prescribed
measurements, or shows visible damages.
1.6 Electrostatic sensitive devices
In case of electrostatic sensitive devices ( for instance all ICs and many other semiconductor devices belong
to this class) it is essential to use a right protection to reduce the risk of personal injury. Careless handling,
during repair, may imply life danger. When repairing, make sure that you are connected with the same
potential as the ground of the equipment by means of the right devices, i.e. a GIRDLE (a wrist wrap with
resistance) and a WINDING CORD to be connected to the girdle and to the relevant socket placed on the
equipment.
You must also keep components and tools at this potential.
1.7 Electrolytic Capacitors
Non-solid electrolytic capacitors must not contain chemicals, which may be regarded as hazardous, if
incorrectly handled. Caution is necessary, should the outer case be fractured.
1.8 Electric shock
In case of electric shock it is recommended not to touch the person before breaking the circuit by means of
the power supply switch; should it be not possible to break the circuit power supply it would be advisable to
try to rescue the person by means of some insulating materials: e.g. a wood stick, a nylon cord or a suitable
service made of plastics, etc.
NEVER TOUCH ELECTROCUTED PEOPLE WITH YOUR HAND AS LONG AS THEIR BODIES ARE
SUBJECTED TO VOLTAGE, OTHERWISE YOU TOO WOULD GET ELECTOCUTED.
Call the doctor and then immediately perform the artificial respiration as described here below:
SAFETY RULES
Page 2
ENG
Lay the patient on his back with his arms parallel to his body; if the patient lies on an
inclined plane, please make sure that his stomach be slightly lower than his breast.
Open the patient's mouth and check if there are foreign bodies. Kneel down near the
patient at the same level as his head's, put one of your hands under his head and the
other one under his neck. Lift the patient's neck and let his head fall backwards the
most possible.
Shift your hand from the patient's neck to his chin; put your thumb between his chin
and his mouth, your forefinger along his jawbone, keep your other fingers tight. By
doing these operations start the self-oxygenation by means of deep breathings in
standing open-mouthed. With your thumb between the patient's chin and his mouth,
keep the patient's lips closed and blow into his nasal cavities.
During these operations see if the patient's breast rises. If it is not so, his nose may be
obstructed; in this case, by levering on his chin with your hand, open the patient's
mouth, put your lips on and blow into his oral cavity. Look at the patient's breast and
see if it rises. One can use this second method instead of the first one also if the
patient's nose is not obstructed, provided that his nose be occluded by squeezing his
nostrils with your hand after shifting it from his head. The patient's head must be kept
bent backwards the most possible.
Start with ten fast and deep expirations, then go on at the rhythm of twelve/fifteen expirations per minute.
Continue as long as the patient has recovered consciousness, or a doctor has ascertained his death.
1.9 Burns
As far as burns are concerned: Don't try to take off clothes from the burnt parts; Pour some cold water on
body burnt areas and ask immediately for a doctor; Don't apply ointments or oily tinctures.
SAFETY RULES
Page 3
ENG
ANNEX 1
When the equipment or the modules are equipped with the labels as shown here below, it is essential to
observe the warnings contained
-LIVE VOLTAGE POINT
-PROTECTIVE EARTHING TERMINAL
BLACK
-CLASS 1 LASER PRODUCT
BLACK
BLACK
YELLOW
YELLOW
BLACK
EXPLANATORY LABEL (affixed to the WARNING LABEL (affixed to the CLASS 1 product side)
CLASS 1 product front)
Products which are of CLASS 1 as defined in the IEC EN 60825-1, fourth edition “Safety of laser
products -Part 1: Equipment classification, requirements and user's guide”. Even if the product is of
CLASS 1, please observe the following safety procedures, prescribed in the cited norm:
•
•
•
do not observe directly the laser beam,
do not use observation optics (lens, microscopes, telescopes, etc.),
do not expose eyes directly.
SAFETY RULES
Page 4
ENG
-DEVICES SENSITIVE TO THE ELECTROSTATICS
WARNING: Please observe the due precautions in handling devices which are sensitive to the
electrostatics.
-NON-SOLID ELECTROLYPTIC CAPACITORS MAY CONTAIN CHEMICALS TO BE REGARDED AS
HAZARDOUS, IF INCORRECTLY HANDLED.
WARNING
THE MAXIMUM CAUTION IS REQUIRED IF THE OUTER CASE IS FRACTURED
SAFETY RULES
Page 5
ENG
2
2) STANDARDS
2.1. MANUFACTURE LABELS
2.1.1 BAR CODE LABEL
Fig. 1
Label fields (ref. Fig.1):
a) Serial number: this field contains the serial number (made up of a 7-digit sequential group) of the
module or equipment.
b) F (final test tracing out): this field contains an F letter that has been barred to certify that the item has
been successfully tested in the factory Final Test Dept.
c) Customer order reference.
d) Equipment acronym or manufacture part number.
e) ICS (Item Change Status): this field contains the item ICS, made up of 2 digits, starting from 01, of the
manufacture part number or equipment.
Fig.2 shows an example of bar code label applied:
Fig. 2
On equipment other labels may be present, as integration of what reported in bar code label (fig.1);
see following pages.
STANDARDS
Page 1
ENG
2.1.2 MANUFACTURE LABELS FOR RACK CABINETS AND EQUIPMENT
(1)
(4)
(9)
(5)
(2)
(6)
(10)
(3)
(7)
(8)
(11)
90mm
Fig. 3
Label fields (ref. Fig.3):
(1) SYSTEM (it will be filled in only if the rack cabinet or the equipment belong to a system):
this field contains the system acronym.
(2) EQUIPMENT:
This field contains the acronym of the rack cabinet or equipment.
(3) MANUFACTURE PART NUMBER:
This field contains the manufacture part number either of the rack cabinet or the equipment.
(4) SERIAL NUMBER:
This field contains the serial number (made up of a 5-digit sequential group) of the rack cabinet or
equipment.
The serial number of each item comes from the manufacture orders print-out (for domestic and foreign
markets).
(5) QIF (Quality Identification Factor):
FACTORY USE ONLY
(6) ICS (Item Change Status):
This field contains the item ICS, made up of 2 digits, of the rack cabinet or equipment.
(7) ORIGIN CODE:
FACTORY USE ONLY
(8) MANUFACTURE YEAR AND WEEK:
This field contains the manufacture year and week of the rack cabinet or equipment (4 digits, the first two
of which indicate the year, while the last two digits indicate the relevant week) e.g. 9515: 15th week of
1995.
STANDARDS
Page 2
ENG
(9) SUPPLY VOLTAGE (from MAINS and/or from DC SOURCE)
(10) ABSORBED CURRENT
(11) MAINS FREQUENCY
F (final test tracing out):
This field contains an F letter that has been barred to certify that the item has been successfully tested in
the factory Final Test Dept.
Fig.4 shows an example of manufacture label as applied to a RACK CABINET or to an EQUIPMENT.
58822
230Vac/48Vdc
00021
01
0.5Aac/0.89Adc
A0122
9515
50/60 Hz
Fig. 4
(•) System acronym (if any)
For instance, you will find the manufacture label placed:
- on the upper left corner of the rack cabinet frame;
- on the rear side (or on the external right side) of the equipment rack.
STANDARDS
Page 3
ENG
2.1.3 MANUFACTURE LABELS FOR RACKS AND PLUG-IN, OR WIRING TYPE, MODULES
(1)
(4)
(5)
(2)
(6)
(3)
(7)
(8)
Fig. 5
Label fields (ref. Fig.5):
(1) SYSTEM (it will be filled in only if the rack or the module to be label belong to a system):
this field contains the system acronym.
(2) EQUIPMENT:
This field contains the acronym of the rack, or module.
(3) MANUFACTURE PART NUMBER:
This field contains the manufacture part number of the rack or module.
(4) SERIAL NUMBER:
This field contains the serial number (made up of a 5-digit sequential group) of the rack or module.
The serial number of each item comes from the manufacture orders print-out (for domestic and foreign
markets).
(5) QIF (Quality Identification Factor)
FACTORY USE ONLY
(6) ICS (Item Change Status):
This field contains the item ICS, made up of 2 digits, of the rack or module.
(7) ORIGIN CODE:
FACTORY USE ONLY
(8) MANUFACTURE YEAR AND WEEK:
This field contains the manufacture year and week of the rack or module (4 digits, the first two of which
indicate the year, while the last two digits indicate the relevant week) e.g. 9515: 15th week of 1995.
STANDARDS
Page 4
ENG
F (final test tracing out):
This field contains an F letter that has been barred to certify that the item (rack or module) has been
successfully tested in the factory Final Test Dept.
Fig.6 shows an example of manufacture label as applied to a RACK or PLUG-IN, or WIRING TYPE
MODULES.
58822
00021
01
A0122
9515
Fig. 6
(•) System acronym (if any)
For instance, you will find the manufacture label placed:
- on the topside of the plug-in module, right or left;
- on the topside of the wiring-type module.
2.1.4 SUB-MODULES MANUFACTURE LABEL
Fig. 7
Label fields (ref. Fig.7):
(3) MANUFACTURE PART NUMBER:
This field contains the sub-module manufacture part number.
(5) QIF (Quality Identification Factor)
FACTORY USE ONLY
(6) ICS (Item Change Status):
This field contains the item ICS, made up of 2 digits, of the sub-module.
(7) ORIGIN CODE:
FACTORY USE ONLY
STANDARDS
Page 5
ENG
(8) MANUFACTURE YEAR AND WEEK:
This field contains the manufacture year and week of the submodule (4 digits, the first two of which
indicate the year, while the last two digits indicate the relevant week) e.g. 9542: 42nd week of 1995.
F (final test tracing out):
This field contains an F letter that has been barred to certify that the item (sub-module) has been
successfully tested in the factory Final Test Dept.
Fig. 8 shows an example of manufacture label as applied to a SUB-MODULE.
00081 01 B0111 F
Fig. 8
You will find the manufacture label placed on the sub-module top, left, or right side.
STANDARDS
Page 6
ENG
2.2) SYMBOLS
EQUIPMENT FRONT SYMBOLS
SYMBOLS
DESCRIPTION
SYMBOLS
SYMBOLS
DESCRIPTION
Earth connection
Impulsive command
Band-stop filter
Ground
Fuse
Low-pass filter
Chassis ground
Thermal breaker
High-pass filter
AC
Failure
Modulator,
demodulator
DC
Overtemperature
Stereo
Pulse current
Output monitoring
signal
Balance
Battery / accumulator
Input monitoring
signal
Amplifier
Direct power
monitoring socket
Adjustable gain
amplifier
Reflected power
monitoring socket
Loudspeaker
connection
Local oscillator
monitoring socket
Audio connection
L.O.
ON
Gating as opening
criterion
Headphone
connection
STAND-BY
Gating as closing
criterion
Stereo headphone
ON push-button
Channel / band filter
Star connection
Positive connector
Negative connector
OFF
STANDARDS
DESCRIPTION
Page 7
ENG
EQUIPMENT FRONT SYMBOLS
SYMBOLS
DESCRIPTION
SYMBOLS
DESCRIPTION
Delta connection
Receiving antenna
High voltage
Linearization
Start push-button
Limiter upper
threshold
Local, manual
command
Limiter lower
threshold
Automatic
Adjusting
OFF / inhibited
(function)
Max adjusting
ON / active
(function)
Min adjusting
Stand-by
(function)
Adjusting
Output connector
Frequency adjusting
SYMBOLS
DESCRIPTION
Dual sound
Input connector
Xtal adjusting
5MHz
STANDARDS
Clock display
(operation time
counter)
Freq. tuning
Fan, blower
Amplitude tuning
Antenna
Band tuning
Transmission antenna
Mono
Page 8
ENG
BLOCK DIAGRAM SYMBOLS
SYMBOLS
DESCRIPTION
SYMBOLS
DESCRIPTION
SYMBOLS
DESCRIPTION
Linear variability
2-way switch
NAND general symbol
Automatic adjustment
Voltage control
electromagnetic relay
NOT general symbol
Combiner general
sign
Transformer
Preemphasis
2-way power divider
Rectifier general
symbol
Deenphasis
DC/DC converter
Delay line general
symbol
3-way power divider
Bridge rectifier
Coaxial type time
delay limiter
4-way power divider
Voltage regulator
Resistive attenuator
2-way power
combiner
REG
3dB Hybrid
Zener regulator
Pad
dB
White limiter
Constant current bias
device
LIM.
Fixed phase shifter
BIAS
WHITE
Positive peak clipper
Sinusoidal oscillator
THERMAL
Thermal switch
SWITCH
STANDARDS
Negative peak clipper
Ex-OR
Band-pass filter
Circulator
OR general symbol
Band-stop filter
Isolator
NOR general symbol
Low-pass filter
Switch
AND general symbol
High-pass filter
Page 9
ENG
BLOCK DIAGRAM SYMBOLS
SYMBOLS
DESCRIPTION
SYMBOLS
DESCRIPTION
Divider by n
DC amplifier
Multiplier by n
Differential
comparator
Mixer general symbol
Phase comparator
Up-converter from IF
to RF
Detector amplifier
RF
FI
Down-converter from
RF to IF
SYMBOLS
DESCRIPTION
Optical amplifier
f/n
f/n
FI
OL
RF
OL
P. SYNC
CLAMP
Lamped to the
syncrhronizing signal
peak
Voltage / frequency
converter
Schmitt’s trigger
Directional coupler
Amplitude linearity
precorrector
Double directional
coupler
Amplitude limiter
without distortion
Directional coupler
with double detector
Equalizer general sign
Detector
Amplitude equalizer
X3
Peak detector
Phase equalizer
To rise to cubical
power
Propagation time
equalizer
Amplifier general
symbol
Laser diode electricaloptical transmitter
RF
Multistage amplifier
RF
STANDARDS
Optical-electrical
receiver
Page 10
ENG
3
3) GENERAL DESCRIPTION
Mobile phone systems have increasingly been spreading in these last years.
Besides providing reliable and good quality connections, telecommunication system services should cover
as widest territory as possible.
It is well-known that connections to users’ terminals are obtained on air by means of steady stations named
radio bases, located through the whole territory so as to obtain a continuous covering through cells one next
to another.
That allows a great number of users to enter the system using few channels.
It is important to maintain the continuity of radio-electrical coverage (and consequently, of service within
each cell) in order to guarantee an acceptable level of communication.
BTS Tri-cellular
FIGURE 1 – SUBDIVISION OF THE TERRITORY IN CELLS
Off-Air Repeaters are proposed as a valid and economical solution to optimize the cell coverage of the
territory and irradiate dead spots as an alternative to solutions requiring dedicated Radio-Bases (Figure 2).
MicroBTS solution
Repeater solution
2Mbit radio connection
BTS
The repeater costs are 50% lower
than with the μ BTS
solution
μBTS
Repeater
BTS
Source
Shadow Zone
Shadow Zone
FIGURE 2 – RADIO-ELECTRICAL PROBLEMS IN CELL NETWORK COVERAGE
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 3
Page 1
91 080 0716F – Rel.06
Off-Air Repeaters on one side receive the signals from the radio base station, amplify them and re-transmit
them in the direction of the dead spot (down-link path). On the other side Off-Air Repeaters receive the
signals from the mobiles (MS), amplify them and re- transmit them to the base station (up-link path).
When a single Off-Air Repeater does not provide satisfactory coverage, the repeater can be used along with
other equipment. Different solutions are provided: cascade systems, based on Bi-Directional Amplifiers, and
optical fibre solutions, based on Remote Units.
3.1) EXAMPLE: USE IN TUNNELS
The Off-Air Repeater interfaces directly with the BTS of the provider of the services to be extended, and can
be used along with other equipment distributed inside the tunnels. Such equipment can be divided into two
types, according to the radio-coverage system used:
- Bi-directional amplifiers, for cascade systems.
- Remote Units, for optical systems.
The following are a few examples of general projects for radio-electric coverage in tunnels.
• Tunnels with a length of less than 300 meters.
In this case, one single Off-Air Repeater is sufficient. It is located at the entrance to the tunnel, equipped
with an antenna which irradiates in the direction of the shadow zone (Figure 3).
DO
UP
LI
NK
DOWN
LI
NK
UP
OFF-AIR
REPEATER
DOWN
UP
Power Supply
(230Vac)
48Vdc Power Supply
and external signals
FIGURE 3
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 3
Page 2
91 080 0716F – Rel.06
• Tunnels with a length in the 300-meter to 600-meter range.
Also in this case, one single Off-Air Repeater is sufficient. The repeater is located at the entrance to the
tunnel and equipped with a leaky cable. This cable can be combined with a directional antenna to
irradiate a portion of the area in front of the tunnel exit (Figure 4).
DO
UP
LI
NK
DOWN
LI
NK
UP
OFF-AIR
REPEATER
DOWN
UP
Power Supply
(230Vac)
48Vdc Power Supply
and external signals
FIGURE 4
• Tunnels with a length of more than 600 meters.
The signal can be enhanced in two ways:
a) By an Off-Air Repeater at the entrance to the tunnel, connected to a cascade of bi-directional
amplifiers inside the tunnel which re-generate the signal with amplification steps at a distance of
250mt. ÷ 400mt. from one another (Figure 5).
DO
UP
LI
LI
DOWN
UP
RF-DC-BF
RF-DC-BF
RF-DC-BF
BI-DIRECTIONAL
AMPLIFIER
OFF-AIR
REPEATER
RF-DC-BF
BI-DIRECTIONAL
AMPLIFIER
DOWN
RF
BF
UP
RF
DC
BF
DC
POWER
SUPPLY
RF-DC-BF
Bias-T
AMPLIFICATION STEP
FIGURE 5
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 3
Page 3
91 080 0716F – Rel.06
b) By an Off-Air Repeater connected to master unit and optical remote units with amplification steps of
no more than 1200mt. each. The optical fiber system extends the signal through an antenna or a
passive distribution system (Figure 6).
UP
LI
LI
NK
OFF-AIR
REPEATER
DOWN
RF
REMOTE
UNIT
DOWN
UP
UP
Power Supply
(230Vac)
MASTER
UNIT
48Vdc Power
Supply and external
signals
FIGURE 6
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 3
Page 4
91 080 0716F – Rel.06
3.2) OPERATING PRINCIPLE – 800MHz/900MHz ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
The repeaters described in this handbook have been developed to permit cell coverage as set forth by SMR,
CDMA/GSM/TDMA/AMPS, GSM-R and EGSM standards for cell phones. The DC powered repeaters (OR1)
can be power-fed by a 48Vdc power supply source only. The AC powered repeaters (OR2) can be power-fed
from MAINS (230Vac) or from a 48Vdc power supply source or both from MAINS and from a 48Vdc source.
The presence of both power supply voltages guarantees the continuity of the coverage service even in case
of failure of one source. The commutation is handled automatically by the repeater.
Off-Air Repeaters are bi-directional amplifiers. The signal to be extended follows two distinct paths: the uplink path, from the mobiles to the radio base station, and the down-link path, from the radio base station
towards the mobiles.
Figure 7 provides the adjustable band Off-Air Repeaters block-diagram.
NETWORK
RS232
MANAGEMENT
UNIT
MODEM
48Vdc
IN
230Vac
IN
5.5Vdc
5.5Vdc
10.5Vdc
DC/DC
CONVERTER
48Vdc
AC/DC
CONVERTER
MANAGEMENT BUS
5.5Vdc
ALC
5.5Vdc
5.5Vdc
LNA DOWN
C1
5.5Vdc
10.5Vdc
D1 BAND SELECTIVE 1
dB
10.5Vdc
10.5Vdc
D2 BAND SELECTIVE 2
DOWN LINK
HPA
DOWN
E1
DOWN LINK
B1
B2
10.5Vdc
5.5Vdc
5.5Vdc
DOWN
DOWN
BTS
UP LINK
UP
E2
MS
UP LINK
UP
HPA UP
C2
LNA UP
A2
dB
A1
ALC
FIGURE 7 – 800MHz/900MHz ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS BLOCK-DIAGRAM
In down-link the RF signal from the donor antenna is filtered and pre-amplified by a low-noise amplifier (LNA,
ref. C1).
The selection of the band of frequencies to be extended is handled by two band-selective modules, ref. D1
and ref. D2, which make the band-pass and frequency center programmable entities.
The band of frequencies to be extended can be managed by the user by means of the management system.
The signal is then amplified by the High power amplifier (ref. E1) filtered by the MS side duplexer, ref.
B2,and transmitted by an antenna or a passive distribution system.
A VSWR detector is equipped.
The up-link path is identical to the down-link path described above.
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 3
Page 5
91 080 0716F – Rel.06
The 48Vdc powered repeater is equipped with a DC/DC converter, ref. F.
The A.C. powered repeater is equipped also with an AC/DC converter, ref. L.
Management module, ref. G, makes it possible to manage the repeater in remote mode via a built-in
modem, or in local mode through the RS232 connector, available on the management module.
The repeater management is performed by means of the Operation and Maintenance Terminal software both
in local mode and in remote mode (ref. Chap. 4).
3.3) ATTACHED DOCUMENTS
TECHNICAL CHARACTERISTICS
SMR 48 Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
CDMA/GSM/TDMA/AMPS 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
EGSM 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
GSM-R 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
ILL SMR - CDMA/GSM/TDMA/AMPS OFF-AIR REPEATERS (ILLUSTRATIVE DRAWINGS)
Sheet 1, equipment composition and backplane access points map
Sheet 2, modules access points map and external access points map
ILL EGSM OFF-AIR REPEATERS (ILLUSTRATIVE DRAWINGS)
Sheet 1, equipment composition and backplane access points map
Sheet 2, modules access points map and external access points map
ILL GSM-R OFF-AIR REPEATERS (ILLUSTRATIVE DRAWINGS)
Sheet 1, equipment composition and backplane access points map
Sheet 2, modules access points map and external access points map
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 3
Page 6
91 080 0716F – Rel.06
ANNEX 1
TECHNICAL CHARACTERISTICS
SMR 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
TECHNICAL CHARACTERISTICS
Up Link operating frequency band
Down Link operating frequency band
Number of amplified bands
Programmable Bandwidth / steps
SMR ADJUSTABLE
SMR ADJUSTABLE
BANDWIDTH
BANDWIDTH
OFF-AIR REPEATER
OFF-AIR REPEATER
48Vdc MODEL
230Vac MODEL
806MHz ÷ 824MHz
851MHz ÷ 869MHz
Up to 16.5MHz, 10kHz step adjustable
26dBm (1 channel)
23dBm (2 channels)
Output Power (CDMA)
20dBm (4 channels)
31dBm (1 channel)
27dBm (2 channels)
Output Power (iDEN)
23dBm (4 channels)
Noise Figure @ max. gain
8dB
Gain
50dB up to 80dB / 1dB step
Ripple into operating band
± 2dB
Total processing delay
6μs
Return Loss
14dB
3dB over nominal output power
ALC threshold (default value)
(this value can be changed on site)
< -13dBm (in the frequency band 9kHz ÷ 1GHz)
Spurious emissions and intermodulation products
< -13dBm (in the frequency band 1GHz ÷ 12.75GHz)
Local Control Interface
RS232
Remote Control Interface
GSM (850, 900, 1800, 1900) or CDMA (850, 1900) modem
-72 ÷ -36Vdc
Power Supply
-72 ÷ -36Vdc
85÷265Vac (50-60Hz)
Power Consumption
110W @ 48Vdc
140VA @ 230Vac
Operating Temperature (*)
-20°C up to +55°C
Degree of protection provided by enclosure
IP65
RF connectors
7/16 female
423x395x230mm
Dimensions (h-w-d)
(max. volume - heat sinks included)
All values are typical at 25°C unless otherwise specified
(*) Degraded performances from +50°C to +55°
800MHz Off-Air Repeaters (OR Series)
TECHNICAL CHARACTERISTICS
Annex 1
SMR
ANNEX 2
TECHNICAL CHARACTERISTICS
CDMA/GSM/TDMA/AMPS 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
CDMA/GSM/TDMA/AMPS
CDMA/GSM/TDMA/AMPS
ADJUSTABLE
ADJUSTABLE
BANDWIDTH
BANDWIDTH
TECHNICAL CHARACTERISTICS
OFF-AIR REPEATER
OFF-AIR REPEATER
48Vdc MODEL
230Vac MODEL
Up Link operating frequency band
824MHz ÷ 849MHz
Down Link operating frequency band
869MHz ÷ 894MHz
Number of amplified bands
Programmable Bandwidth / steps
Up to 16.5MHz, 10kHz step adjustable
26dBm (1 channel)
23dBm (2 channels)
Output Power (CDMA)
20dBm (4 channels)
31dBm (1 channel)
28dBm (2 channels)
Output Power (GSM/TDMA/AMPS)
25dBm (4 channels)
Noise Figure @ max. gain
8dB
Gain
50dB up to 80dB / 1dB step
Ripple into operating band
± 2dB
Total processing delay
6μs
Return Loss
14dB
3dB over nominal output power
ALC threshold (default value)
(this value can be changed on site)
< -13dBm (in the frequency band 9kHz ÷ 1GHz)
Spurious emissions and intermodulation products
< -13dBm (in the frequency band 1GHz ÷ 12.75GHz)
Local Control Interface
RS232
Remote Control Interface
GSM (850, 900, 1800, 1900) or CDMA (850, 1900) modem
-72 ÷ -36Vdc
Power Supply
-72 ÷ -36Vdc
85÷265Vac (50-60Hz)
Power Consumption
110W @ 48Vdc
140VA @ 230Vac
Operating Temperature (*)
-20°C up to +55°C
Degree of protection provided by enclosure
IP65
RF connectors
7/16 female
423x395x230mm
Dimensions (h-w-d)
(max. volume - heat sinks included)
All values are typical at 25°C unless otherwise specified
(*) Degraded performances from +50°C to +55°C
800MHz Off-Air Repeaters (OR Series)
TECHNICAL CHARACTERISTICS
Annex 2
CDMA/GSM/TDMA/AMPS
ANNEX 3
TECHNICAL CHARACTERISTICS
EGSM 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
TECHNICAL CHARACTERISTICS
Up Link operating frequency band
EGSM ADJUSTABLE
EGSM ADJUSTABLE
BANDWIDTH
BANDWIDTH
OFF-AIR REPEATER
OFF-AIR REPEATER
48Vdc MODEL
230Vac MODEL
880MHz ÷ 915MHz
925MHz ÷ 960MHz
Down Link operating frequency band
Number of amplified bands
Programmable Bandwidth / steps
Up to 16.5MHz, 10kHz step adjustable
Output Power
27dBm (2 carriers)
Noise Figure @ max. gain
8dB
Gain
50dB up to 80dB / 1dB step
Ripple into operating band
± 2dB
Total processing delay
Return Loss
ALC threshold (default value)
Spurious emissions and intermodulation products
Local Control Interface
6μs
14dB
3dB over nominal output power
(this value can be changed on site)
< -36dBm (in the frequency band 9kHz ÷ 1GHz)
< -30dBm (in the frequency band 1GHz ÷ 12.75GHz)
RS232
Remote Control Interface
PSTN – GSM/DCS modem
-72 ÷ -36Vdc
85÷265Vac (50-60Hz)
140VA @ 230Vac
-72 ÷ -36Vdc
Power Supply
Power Consumption
110W @ 48Vdc
Operating Temperature (*)
-20°C up to +55°C
Degree of protection provided by enclosure
IP65
RF connectors
7/16 female
423x395x230mm
(max. volume - heat sinks included)
Dimensions (h-w-d)
All values are typical at 25°C unless otherwise specified
(*) Degraded performances from +50°C to +55°C
900MHz Off-Air Repeaters (OR Series)
TECHNICAL CHARACTERISTICS
Annex 3
EGSM
ANNEX 4
TECHNICAL CHARACTERISTICS
GSM-R 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS
TECHNICAL CHARACTERISTICS
Up Link operating frequency band
GSM-R ADJUSTABLE
GSM-R ADJUSTABLE
BANDWIDTH
BANDWIDTH
OFF-AIR REPEATER
OFF-AIR REPEATER
48Vdc MODEL
230Vac MODEL
876MHz ÷ 880MHz
921MHz ÷ 925MHz
Down Link operating frequency band
Number of amplified bands
Programmable Bandwidth / steps
Up to 4MHz, 10kHz step adjustable
Output Power
27dBm (2 carriers)
Noise Figure @ max. gain
8dB
Gain
50dB up to 80dB / 1dB step
Ripple into operating band
± 2dB
Total processing delay
Return Loss
ALC threshold (default value)
Spurious emissions and intermodulation products
Local Control Interface
6μs
14dB
3dB over nominal output power
(this value can be changed on site)
< -36dBm (in the frequency band 9kHz ÷ 1GHz)
< -30dBm (in the frequency band 1GHz ÷ 12.75GHz)
RS232
Remote Control Interface
PSTN – GSM/DCS modem
-72 ÷ -36Vdc
85÷265Vac (50-60Hz)
140VA @ 230Vac
-72 ÷ -36Vdc
Power Supply
Power Consumption
110W @ 48Vdc
Operating Temperature (*)
-20°C up to +55°C
Degree of protection provided by enclosure
IP65
RF connectors
7/16 female
423x395x230mm
(max. volume - heat sinks included)
Dimensions (h-w-d)
All values are typical at 25°C unless otherwise specified
(*) Degraded performances from +50°C to +55°C
900MHz Off-Air Repeaters (OR Series)
TECHNICAL CHARACTERISTICS
Annex 4
GSM-R
L
E2
E1
EQUIPMENT COMPOSITION
Ref.
LNA
+5V
HPA
RS232
OUT
ALARM
POWER SUPPLY
925-960MHz
10V5
880-915MHz
5V5
LNA DOWN
Out
In
UP-LINK
Out
DOWN-LINK
In
ANT
DOWN-LINK
ANT
BAND-SELECTIVE 2
In
Out
BAND-SELECTIVE 1
In
B1
LNA UP
C1
A1
A2
DIRECTIONAL COUPLER WITH RETURN LOSS METER
C2
A2
D1
D2
DUPLEXER FILTER
C1
DOWN LINK LNA MODULE
C2
UP LINK LNA MODULE
D1
BAND SELECTIVE MODULE BS1
D2
BAND SELECTIVE MODULE BS2
E1
FFWD HIGH POWER AMPLIFIER (DOWN LINK PATH)
E2
FFWD HIGH POWER AMPLIFIER (UP LINK PATH)
DC/DC CONVERTER
BACKPLANE
REPEATER BOX
AC/DC CONVERTER (230VAC MODEL ONLY)
OPEN DOOR DETECTOR
MANAGEMENT MODULE
132kHz CARD (OPTION - to be equipped when the repeater is connected to
bi-directional amplifiers)
880-915MHz
925-960MHz
Out
UP-LINK
DOUBLE DIRECTIONAL COUPLER
B1-B2
SPV BUS
HIGH POWER AMPLIFIER
DOWN LINK
SPV BUS
HIGH POWER AMPLIFIER
UP LINK
BS 1
RL
OPERATING
OUT
IN
IN
BS 2
132KHz
DESCRIPTION
A1
B2
INTERNAL VIEW - EQUIPMENT COMPOSITION
BACKPLANE ACCESS POINTS MAP
13
12
11
10
CONNECTORS
Ref.
Connector type
15-pole D-Sub female
Band selective Module 2
15-pole D-Sub female
LNA (Up Link path)
15-pole D-Sub female
Band selective Module 1
10-way female terminal block
External alarms and signals
2-way female terminal block
Open door sensor
3-way female terminal block
Return Loss meter
15-pole D-Sub female
DC/DC converter
10
15-pole D-Sub female
HPA (Down Link path)
11
2-way female terminal block
(230VAC MODEL ONLY)
AC/DC converter (50.5Vdc
backplane input)
12
15-pole D-Sub female
Management module
13
15-pole D-Sub female
Ref.
DESCRIPTION
GREEN LED: ON when 10.5Vdc is available
GREEN LED: ON when 5.5Vdc is available
Part Number
ILL EGSM OFF-AIR REPEATERS
HPA (Down Link path)
LEDs
Connected to
Date
Title
EGSM ADJUSTABLE BANDWIDTH
OFF-AIR REPEATERS
COMPOSITION AND BACKPLANE ACCESS POINTS MAP
ED. 02
17/01/2007
Drawn by
Checked by
INTERNAL VIEW - BACKPLANE
Scale
Copyright protection according to law
Revisions
ED. 01
03/11/2006
Approved by
CG
MN
AV
Sheet
1/2
43
42
41 40 39
38 37 36 35 34
33
MODULES ACCESS POINTS MAP
30
Ref.
10
11
12
13
14
15
16
17
18
21
22
23
24
25
26
LNA
+5V
HPA
RS232
OPERATING
ALARM
SPV BUS
BS 1
RL
HIGH POWER AMPLIFIER
DOWN LINK
SPV BUS
HIGH POWER AMPLIFIER
UP LINK
46
31
IN
IN
BS 2
132KHz
32
44
45
48
OUT
OUT
47
POWER SUPPLY
49
29
10V5
5V5
28
26
925-960MHz
27
51
880-915MHz
50
LNA DOWN
Out
UP-LINK
27
25
28
In
29
24
Out
Out
DOWN-LINK
In
ANT
DOWN-LINK
ANT
BAND-SELECTIVE 2
In
23
30
31
32
33
34
BAND-SELECTIVE 1
925-960MHz
UP-LINK
Out
880-915MHz
In
LNA UP
35
36
57 1
9 10 11 12 13 14 15 16 17 18
21
37
22
38
INTERNAL VIEW - MODULES ACCESS POINTS
39
40
41
42
43
44
45
46
47
48
49
50
51
57 (*)
52
53
54 (*)
55
56
DESCRIPTION
DUPLEXER - BTS side - Up Link path SMA connector
LNA - Down Link - input
Band Selective 2 Up-Link path output
DUPLEXER - BTS side - input/output SMA connector
D irectional coupler - BTS side - SMA (f) input/output connector
DUPLEXER - BTS side - SMA Down Link connector
LNA - Up Link path - output
Band Selective 1 Up Link Input
Band Selective 1 Down Link Output
Band Selective 2 Down Link Input
LNA - Down Link path - output
LNA - Up Link path - input
Band Selective 2 Up Link path input
Band Selective 2 Down Link path output
Band Selective 1 Down Link path Input
Band Selective 1 Up Link path output
DUPLEXER - MS side - Up Link path SMA connector
48Vdc ONLY circuit breaker
DUPLEXER - MS side - input/output SMA connector
D irectional coupler - MS side - SMA (f) input/output connector
DUPLEXER - MS side - Down Link path SMA connector
GREEN LED: +5Vdc available
HPA - UP LINK - communicates with management
GREEN
unit
GREEN / RED LED
HPA UP
HPA - UP LINK - does not communicate with
RED
management unit
GREEN LED: +10.5V available
HPA - DOWN LINK - communicates with
GREEN
management unit
GREEN / RED LED
HPA DOWN
HPA - DOWN LINK - does not communicate with
RED
management unit
HPA Down Link output
Sub-D 15-pole management link between Down Link HPA and management unit
HPA Down Link input
HPA Down Link monitoring SMA connector
Sub-D 9-poles RS232 connector
LNA - DOWN LINK - communicates with
GREEN
management unit
GREEN / RED LED
LNA DOW N
LNA - DOW N - does not communicate with
RED
management unit
LNA - UP LINK - communicates with management
GREEN
unit
GREEN / RED LED
LNA UP
LNA - UP LINK - does not communicate with
RED
management unit
GREEN
BS1 communicates with management unit
GREEN / RED LED
Band Selective 1
RED
BS1 does not communicate with management unit
Sub-D 15-pole management link between Down Link HPA and management unit
GREEN
BS2 communicates with management unit
GREEN / RED LED
Band Selective 2
RED
BS2 does not communicate with management unit
GREEN LED 132kHz: 132kHz (line am p lifier management carrier) correctly operating
RED LED: Return Loss alarm
Sub-D 15-pole management link between Up Link HPA and management unit
Sub-D 15-pole management link between Up Link HPA and management unit
HPA Up Link input
HPA Up Link monitoring SMA connector
GSM modem RF output
HPA Up Link output
RED ON
Trying to connect to network
RED LED: modem
BLINKING
operation
Modem correctly operating
RED
GREEN LED: equipment correctly operating
GREEN LED: 5.5V available
RED LED: equipment fault
AC MAINS circuit breaker
EXTERNAL ACCESS POINTS MAP
BTS side 7/16 RF connector
Equipment Grounding
AC voltage input (230Vac)
48Vdc input / external alarms Connector
MS side 7/16 RF connector
(*) 230VAC MODEL ONLY
Part Number
ILL EGSM OFF-AIR REPEATERS
52
53
54
55
56
BOTTOM VIEW - REPEATER CASE CLOSED EXTERNAL ACCESS POINTS
Scale
Copyright protection according to law
Title
Date
EGSM ADJUSTABLE BANDWIDTH
OFF-AIR REPEATERS
MODULES ACCESS POINTS MAP AND EXTERNAL
ACCESS POINTS MAP
Revisions
ED. 01
03/11/2006
ED. 02
17/01/2007
Drawn by
Checked by
Approved by
CG
MN
AV
Sheet
2/2
L
E2
E1
EQUIPMENT COMPOSITION
Ref.
LNA
+5V
HPA
RS232
OUT
ALARM
POWER SUPPLY
921-925MHz
10V5
876-880MHz
5V5
LNA DOWN
Out
In
UP-LINK
921-925MHz
Out
ANT
DOWN-LINK
Out
DOWN-LINK
In
876-880MHz
ANT
BAND-SELECTIVE 2
In
BAND-SELECTIVE 1
In
Out
UP-LINK
DOUBLE DIRECTIONAL COUPLER
A2
DIRECTIONAL COUPLER WITH RETURN LOSS METER
B1-B2
SPV BUS
HIGH POWER AMPLIFIER
DOWN LINK
SPV BUS
HIGH POWER AMPLIFIER
UP LINK
BS 1
RL
OPERATING
OUT
IN
IN
BS 2
132KHz
DESCRIPTION
A1
DUPLEXER FILTERS
C1
DOWN LINK LNA MODULE
C2
UP LINK LNA MODULE
D1
BAND SELECTIVE MODULE BS1
D2
BAND SELECTIVE MODULE BS2
E1
FFWD HIGH POWER AMPLIFIER (DOWN LINK PATH)
E2
FFWD HIGH POWER AMPLIFIER (UP LINK PATH)
DC/DC CONVERTER
BACKPLANE
REPEATER BOX
AC/DC CONVERTER (230VAC MODEL ONLY)
OPEN DOOR DETECTOR
MANAGEMENT MODULE
132kHz CARD (OPTION - to be equipped when the repeater is connected to
bi-directional amplifiers)
LNA UP
B1
C1
A1
C2
A2
D1
D2
B2
INTERNAL VIEW - EQUIPMENT COMPOSITION
BACKPLANE ACCESS POINTS MAP
13
12
11
10
CONNECTORS
Ref.
15-pole D-Sub female
Band selective Module 2
15-pole D-Sub female
LNA (Up Link path)
15-pole D-Sub female
Band selective Module 1
10-way female terminal block
External alarms and signals
2-way female terminal block
Open door sensor
3-way female terminal block
Return Loss meter
15-pole D-Sub female
DC/DC converter
10
15-pole D-Sub female
HPA (Down Link path)
11
2-way female terminal block
(230VAC MODEL ONLY)
AC/DC converter (50.5Vdc
backplane input)
12
15-pole D-Sub female
Management module
13
15-pole D-Sub female
Ref.
DESCRIPTION
GREEN LED: ON when 10.5Vdc is available
GREEN LED: ON when 5.5Vdc is available
Part Number
ILL GSM-R OFF-AIR REPEATERS
HPA (Down Link path)
LEDs
Connected to
Connector type
Date
Title
GSM-R ADJUSTABLE BANDWIDTH
OFF-AIR REPEATERS
COMPOSITION AND BACKPLANE ACCESS POINTS MAP
ED. 02
17/01/2007
Drawn by
Checked by
INTERNAL VIEW - BACKPLANE
Scale
Copyright protection according to law
Revisions
ED. 01
21/11/2006
Approved by
CG
MN
AV
Sheet
1/2
43
42
41 40 39
38 37 36 35 34
33
MODULES ACCESS POINTS MAP
30
Ref.
10
11
12
13
14
15
16
17
18
21
22
23
24
25
26
LNA
+5V
HPA
RS232
OPERATING
ALARM
SPV BUS
BS 1
RL
HIGH POWER AMPLIFIER
DOWN LINK
SPV BUS
HIGH POWER AMPLIFIER
UP LINK
46
31
IN
IN
BS 2
132KHz
32
44
45
48
OUT
OUT
47
POWER SUPPLY
49
29
10V5
5V5
28
26
921-925MHz
27
51
876-880MHz
50
LNA DOWN
Out
UP-LINK
In
DOWN-LINK
Out
Out
DOWN-LINK
In
23
29
24
BAND-SELECTIVE 1
UP-LINK
28
ANT
In
In
25
30
31
32
33
34
876-880MHz
921-925MHz
ANT
BAND-SELECTIVE 2
27
Out
LNA UP
35
36
37
57 1
9 10 11 12 13 14 15 16 17 18
21
22
38
39
INTERNAL VIEW - MODULES ACCESS POINTS
40
41
42
43
44
45
46
47
48
49
50
51
57 (*)
52
53
54 (*)
55
56
D E S C R IPTION
DUPLEXER - BTS side - Up Link path SMA connector
LNA - Down Link - input
Band Selective 2 Up-Link path output
DUPLEXER - BTS side - input/output SMA connector
D irectional coupler - BTS side - SMA (f) input/output connector
DUPLEXER - BTS side - SMA Down Link connector
LNA - Up Link path - output
Band Selective 1 Up Link Input
Band Selective 1 Down Link Output
Band Selective 2 Down Link Input
LNA - Down Link path - output
LNA - Up Link path - input
Band Selective 2 Up Link path input
Band Selective 2 Down Link path output
Band Selective 1 Down Link path Input
Band Selective 1 Up Link path output
DUPLEXER - MS side - Up Link path SMA connector
48Vdc ONLY circuit breaker
DUPLEXER - MS side - input/output SMA connector
D irectional coupler - MS side - SMA (f) input/output connector
DUPLEXER - MS side - Down Link path SMA connector
GREEN LED: +5Vdc available
HPA - UP LINK - communicates with management
GREEN
unit
G R E E N / RED LED
HPA UP
HPA - UP LINK - does not communicate with
RED
management unit
GREEN LED: +10.5V available
HPA - DOWN LINK - communicates with
GREEN
management unit
G R E E N / RED LED
HPA DOW N
HPA - DOWN LINK - does not communicate with
RED
management unit
HPA Down Link output
Sub-D 15-pole management link between Down Link HPA and management unit
HPA Down Link input
HPA Down Link monitoring SMA connector
Sub-D 9-poles RS232 connector
LNA - DOWN LINK - communicates with
GREEN
management unit
G R E E N / RED LED
LNA DOW N
LNA - DOW N - does not communicate with
RED
management unit
LNA - UP LINK - communicates with management
GREEN
unit
G R E E N / RED LED
LNA UP
LNA - UP LINK - does not communicate with
RED
management unit
GREEN
BS1 communicates with management unit
G R E E N / RED LED
Band Selective 1
RED
BS1 does not communicate with management unit
Sub-D 15-pole management link between Down Link HPA and management unit
GREEN
BS2 communicates with management unit
G R E E N / RED LED
Band Selective 2
RED
BS2 does not communicate with management unit
GREEN LED 132kHz: 132kHz (line amplifier management carrier) correctly operating
RED LED: Return Loss alarm
Sub-D 15-pole management link between Up Link HPA and management unit
Sub-D 15-pole management link between Up Link HPA and management unit
HPA Up Link input
HPA Up Link monitoring SMA connector
GSM modem RF output
HPA Up Link output
RED ON
Trying to connect to network
RED LED: modem
BLINKING
operation
Modem correctly operating
RED
GREEN LED: equipment correctly operating
GREEN LED: 5.5V available
RED LED: equipm e n t fault
AC MAINS circuit breaker
EXTERNAL ACCESS POINTS M A P
BTS side 7/16 RF connector
Equipment Grounding
AC voltage input (230Vac)
48Vdc input / external alarms Connector
MS side 7/16 RF connector
(*) 230VAC MODEL ONLY
Part Number
ILL GSM-R OFF-AIR REPEATERS
52
53
54
55
56
BOTTOM VIEW - REPEATER CASE CLOSED EXTERNAL ACCESS POINTS
Scale
Copyright protection according to law
Title
Date
GSM-R ADJUSTABLE BANDWIDTH
OFF-AIR REPEATERS
MODULES ACCESS POINTS MAP AND EXTERNAL
ACCESS POINTS MAP
Revisions
ED. 01
21/11/2006
ED. 02
17/01/2007
Drawn by
Checked by
Approved by
CG
MN
AV
Sheet
2/2
4
4) INSTALLATION AND POWER-UP PROCEDURES
Ref.: ILL SMR - CDMA/GSM/TDMA/AMPS - R-GSM - EGSM OFF-AIR REPEATERS
WARNING:
Before installing the equipment, carefully read the safety norms herewith attached.
A correct repeater installation and setting procedure requires a good knowledge and experience in
installing telecommunication equipment. These activities should be performed by skilled personnel
only. Remember that if the equipment is not installed correctly, it may:
- put the donor BTS temporary out of service,
- be damaged by excessively high input or output signal levels.
4.1) INSTALLATION
1. INITIAL CHECK
Make sure that the supply is complete and/or that the material has not been damaged during transport.
The list of the materials that make up the equipment is described in the relative PACKING LIST.
Should any parts be missing, or should some be damaged, kindly inform the Sales Dept. of RFS
immediately, in order to facilitate replacing and/or repairing the parts involved.
10V5
DOWN-LINK
DOWN-LINK
UP-LINK
In
Out
Out
In
In
UP-LINK
BAND-SELECTIVE 2
In
Out
Out
In
Out
DOWN-LINK
In
DOWN-LINK
BAND-SELECTIVE 1
LNA UP
AC voltage
circuit breaker
ref. 59
SPV BUS
10V5
BAND-SELECTIVE 1
In
HIGH POWER AMPLIFIER
DOWN LINK
SPV BUS
POWER SUPPLY
5V5
BAND-SELECTIVE 2
Out
LNA DOWN
UP-LINK
In
LNA
HPA
ALARM
LNA DOWN
Out
BS 1
OUT
POWER SUPPLY
5V5
IN
IN
OUT
ALARM
RL
+5V
OPERATING
OUT
SPV BUS
LNA
HPA
HIGH POWER AMPLIFIER
UP LINK
132KHz
HIGH POWER AMPLIFIER
DOWN LINK
SPV BUS
HIGH POWER AMPLIFIER
UP LINK
BS 2
BS 1
RL
+5V
OPERATING
OUT
IN
IN
BS 2
132KHz
WARNING:
Before installing the equipment, always make sure that the repeater is not powered up:
Check that both ON/OFF switches located inside the alternate current powered repeater are
in the OFF position (AC voltage circuit breaker, ref. 59 and 48Vdc circuit breaker, ref. 22
FIGURE 1a).
Check that the ON/OFF switch (48Vdc circuit breaker, ref. 22, FIGURE 1b) located inside the
direct current powered repeater is in the OFF position.
The LEDs inside the repeater must be turned off.
UP-LINK
Out
LNA UP
48Vdc circuit
breaker
ref. 22
48Vdc circuit
breaker
ref. 22
a) 230Vac MODEL
INTERNAL VIEW
b) 48Vdc MODEL
INTERNAL VIEW
FIGURE 1 – EQUIPMENT POWER SWITCHES
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
2. POSITIONING THE REPEATER
The Off-Air Repeater is housed inside a case which provides high-degree environmental protection (IP65).
Therefore it is suitable for outdoor wall mount installation. It can also be installed inside specific cabinets
equipped with UPS units.
Fix the Off-Air Repeater in vertical position on the wall, or on the vertical guides present inside the cabinet:
• Lift the equipment and fix its position with four M8 bolts, which are to be inserted in the pre-cut slots
(ref. A, FIGURE 2).
• After checking the correct positioning of the equipment, fully tighten the bolts.
334.00 mm (13.15 in.)
366.00 mm (14.41 in.)
FIGURE 2 - POSITION OF THE HOLES IN THE SUPPORT BRACKETS FOR THE EQUIPMENT
3. POWER SUPPLY SOURCE CONNECTIONS AND ALARMS CONNECTIONS
• Before carrying out any other electrical connection connect the rack to the station ground, using the
ground bolt on the bottom of the repeater (ref. 53, FIGURE 3).
• Make sure that the power supply source provides the prescribed nominal voltage.
If so, connect the equipment to the power supply source, as described below.
MS side
RF connector
ref. 56
MS side
RF connector
ref. 56
BTS side
RF connector
ref. 52
BTS side
RF connector
ref. 52
Equipment
Grounding
ref. 53
AC voltage input
from MAINS
ref. 54
48Vdc input and
external alarms
Connector
ref. 55
Equipment
Grounding
ref. 53
a) 230Vac MODEL
BOTTOM VIEW
48Vdc input and
external alarms
Connector
ref. 55
b) 48Vdc MODEL
BOTTOM VIEW
FIGURE 3 – EXTERNAL CONNECTORS
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
•
D.C. POWERED EQUIPMENT
Connect the 15-pole (f) connector on the bottom of the repeater (ref. 55, FIGURE 3) to the 48Vdc/Alarm
cable (supplied with the equipment).
The cable permits D.C power supply (48Vdc) to the equipment. It also makes available the remote
signals detailed into Table 1.
Connect the cable to the power supply source (48Vdc) and connect the external signals.
PLEASE NOTE:
The 48Vdc power supply cable (also including the external alarms), provided standard with the
equipment, must never be longer than 3 meters in length (connectors included).
48Vdc POWER SUPPLY AND EXTERNAL ALARMS CONNECTOR
PIN
TYPE OF SIGNAL
48Vdc
POWER SUPPLY
EXTERNAL ALARMS
10
11
12
13
14
WIRES COLOR OF 48VDC
POWER SUPPLY AND
EXTERNAL ALARMS
CABLE
0Vdc
0Vdc
- 48Vdc
- 48Vdc
EXTERNAL ALARM 3
EXTERNAL ALARM 4
EXTERNAL ALARM 2
EXTERNAL ALARM 1
GROUND - GND
+5Vdc EXT. ALM.
COMMON
NOT CONNECTED
SPV CARRIER FOR BDAs
(IF ANY)
NOT CONNECTED
NOT CONNECTED
132kHz
RED
RED
BLACK
BLACK
GRAY
BROWN
ORANGE
PINK
GREEN
WHITE
BLUE
VIOLET
TABLE 1 – 48Vdc POWER SUPPLY AND REMOTE SIGNALS CONNECTOR PIN-OUT
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 4
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91 080 0716F – Rel.06
•
AC POWERED EQUIPMENT (ALTERNATE CURRENT)
Connect the 230Vac power cable to the connector located on the bottom of the repeater (ref. 54,
FIGURE 3). The connector pin assignments are detailed in Table 2.
230Vac POWER SUPPLY CONNECTOR
PIN
CABLE
230VAC POWER SUPPLY
CABLE COLOR
LINE
NEUTRAL
GROUND (GND)
NOT CONNECTED
BROWN
BLUE
YELLOW / GREEN
TABLE 2 – 230Vac POWER SUPPLY CONNECTOR PIN-OUT
Connect the other end of the cable to the power supply source (230Vac).
Also connect the 48Vdc power and alarms cable, provided standard, to the 15-pin connector located on
the bottom of the equipment (ref. 55, FIGURE 3).
The cable makes remote signals available. The connector pin-out is detailed into table 1.
The cable can also be connected to a 48Vdc power supply, to feed the equipment with a D.C. voltage.
PLEASE NOTE:
The 48Vdc power supply cable (also including the external alarms), provided standard with the
equipment, must never be longer than 3 meters in length (connectors included).
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
4.2) POWER-UP
Warning: before power up, make sure that the isolation between the donor antenna and the
service antenna is at least 15dB greater than the repeater gain.
1.
2.
3.
Connect the cable from the donor antenna to a spectrum analyzer and check input signal presence and
level. After measurement disconnect the spectrum analyzer.
Switch on the equipment by means of the switches placed inside the repeater (FIGURE 1a and b).
Check the LEDs status on the management module: FIGURE 4 and Table 3 show LEDs status on the
management module under normal operating conditions.
11S
10S
9S
8S
7S
6S
BS 2
132KHz
BS 1
RL
LNA
+5V
HPA
OPERATING
ALARM
1S
2S
3S
4S
5S
FIGURE 4 – MANAGEMENT MODULE: LEDS STATUS - CORRECT POWER UP
REF.
LED 1S
LED 2S
LED 3S
STATUS
OFF
ON
ON
MEANING
LED 4S
ON, GREEN
LED 5S
ON, GREEN
LED 6S
ON, GREEN
LED 7S
LED 8S
ON, GREEN
ON, GREEN
LED 9S
ON, GREEN
LED 10S
ON, GREEN
132kHz correctly operating
LED 11S
OFF
NO Return Loss alarm
Equipment correctly operating
Management module: +5Vdc available
HPA (High Power Amplifier) - UP LINK communicates with management module
HPA (High Power Amplifier) - DOWN LINK communicates with management module
LNA (Low Noise Amplifier) - DOWN LINK communicates with management module
BS1 communicates with management module
BS2 communicates with management module
LNA (Low Noise Amplifier) - UP LINK - communicates
with management module
TABLE 3 - MANAGEMENT MODULE: LEDS STATUS - CORRECT POWER UP
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 4
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91 080 0716F – Rel.06
4.
5.
Check that the green LED on the 230Vac power supply module (when equipped) is ON.
Check LEDs status on the 48Vdc power supply module: FIGURE 5 and Table 4 show LEDs status on
the power supply module (DC/DC converter) under normal operating conditions.
POWER SUPPLY
5V5
10V5
1A
2A
FIGURE 5 – DC/DC CONVERTER: LEDS STATUS - CORRECT POWER UP
REF.
LED 1A
LED 2A
STATUS
ON
ON
MEANING
5.5Vdc from DC/DC converter available
10.5Vdc from DC/DC converter available
TABLE 4 - DC/DC CONVERTER: LEDS STATUS - CORRECT POWER UP
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
6.WIRELESS MODEMS
a. Models equipped with CDMA modem
data communication between repeater (via built-in CDMA modem) and management workstation
(PC where OMT/OMC management softwares have been previously installed) via PSTN and/or
CDMA modem, must be established in CSD (CIRCUIT-SWITCHED DATA) mode only. All other
modalities are not allowed.
As CDMA modems don’t use SIMs, the network’s parameters have to be set manually by using the
HyperTerminal. Please contact your local Operator, communicating modem’s ESN (check the sticker at the
top of the management module), to get the needed parameters. Most common parameters are:
Typical CDMA Network Parameters
Acronyms
Full name
Network's setting /
Terminal's setting
Description
Notes
MSL
Master Subsidy
Lockcode
Provided by the Operator
Modem lock / unlock code
MDN
Mobile Data Number
Provided by the Operator
Modem phone number
MDN & MTN are
synonyms
MTN
Mobile Telephone
Number
Provided by the Operator
Modem phone number
MDN & MTN are
synonyms
MNC
Mobile Network Code
Provided by the Operator
2 digit number that represents a
sub-network in the IMSI
MCC
Mobile Country Code
Provided by the Operator
Predefined number that
represents a Country in the IMSI
ESN
Electronic Serial Number
Proprietary of the modem
(factory setting)
Modem internal proprietary ID
(factory setting)
It can be found into the
sticker at the top of the
management module
MIN
Mobile Identification
Number
Provided by the Operator
Subscriber's account number
IMSI
International Mobile
Subscription Identity
Provided by the Operator
International modem ID
IMSI = MCC + MNC +
MIN
(Home) SID
System ID
Provided by the Operator
(Home) NID
Network ID
Provided by the Operator
PRI
Product Release
Instruction
Provided by the Operator
Carrier information
PRL
Preferred Roaming List
Provided by the Operator
List of NIDs/SIDs
ID of the sub-network where
modem can operate
ID of the sub-network where
modem can operate
SID & NID are synonyms
SID & NID are synonyms
PCA
Primary Channel A
Provided by the Operator
RF primary channel
PCB
Primary Channel B
Provided by the Operator
RF primary channel
SCA
Secondary Channel A
Provided by the Operator
RF secondary channel
SCB
Secondary Channel B
Provided by the Operator
RF secondary channel
A-key
Autenthification key
Provided by the Operator
Key for the autenthification
Built-in modem's one is
random
Note: not all parameters could be needed
In normal operating conditions the jumper must remain connected (if removed, the remote management will
be avoided). It can be temporary removed to set the Operator’s parameters into the built-in modem by using
the RS232 modem port. The same serial cable used for local management, can be used to set the modem.
Once the modem setting is complete, reconnect the jumper to the normal operating position.
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
The following procedure explains how to set the modem’s parameters.
Please note: AT commands, contained between the inverted commas, must be strictly typed as it follows.
1)
2)
3)
4)
5)
Switch-off the repeater
Remove the jumper at RS232 (modem) connector
Connect the serial cable (supplied with repeater) with your laptop and RS232 (modem) connector
Switch-on the repeater and wait for the complete auto-diagnostic test
Run HyperTerminal software on your laptop (if you’re using Microsoft XP, run HyperTerminal from
start/programs/accessories/communication/HyperTerminal)
6) Type the connection’s name (e.g. repeater’s modem) and press OK
7) Chose the right PC’s serial port (COM) and press OK
8) Set the bit-rate at “9600” baud
9) Set the number of bits at “8”
10) Set the parity at “no parity”
11) Set the bit stop at “1”
12) Set the flow control at “no flow control”
13) Press OK
14) Type “AT” and press ENTER (modem should reply with “OK”)
15) Type “AT+E1” and press ENTER (modem should reply with “OK”)
16) Type “AT+CGSN” and press ENTER to display the ESN number (if needed)
17) Type “AT+WSPC=1,000000” and press ENTER to get access to CDMA AT commands
18) Type “AT+WMDN=xxx” where xxx is the MDN number (10 to 15 digits) and press ENTER
If needed, to get current MDN number, type “AT+WMDN?” and press ENTER
19) Type “AT+WIMI=xxx” where xxx is the IMSI number (15 digits) and press ENTER
If needed, to get current IMSI number, type “AT+WIMI? and press ENTER
20) Type “AT+WSID=, xxx, yyy” where xxx is the SID number (1 up to 5 digits / 0 up to 32767) and yyy
is the NID number (1 up to 5 digits / 0 up to 65535 – if not provided, set 65535) and press ENTER
If needed, to get current IMSI number, type “AT+WIMI? and press ENTER
With the this command you’ve set SID & NID number in first memory location. Up to 20 (0 up to 19)
locations are supported. To set other SIDs & NIDs, please use the following sintax:
Type “AT+WSID=zz, xxx, yyy” where zz is the location (up to 2 digits / 1 up to 19) where these SIDs
& NIDs have to be stored, xxx is the SID number (1 up to 5 digits / 0 up to 32767) and yyy is the NID
number (1 up to 5 digits / 0 up to 65535 – if not provided, set 65535) and press ENTER
Please note: to set both SID & NID at 0 in location 2, type “AT+WSID=2”
21) Type “AT+WPCC=xxx,yyy” where xxx is primary channel “a” (up to 4 digits / 0 up to 2047) and yyy
is primary channel “b” (up to 4 digits / 0 up to 2047) and press ENTER
If needed, to get current primary channels, type “AT+WPCC? and press ENTER
22) Type “AT+WSCC=xxx,yyy” where xxx is secondary channel “a” (up to 4 digits / 0 up to 2047) and
yyy is secondary channel “b” (up to 4 digits / 0 up to 2047) and press ENTER
If needed, to get current secondary channels, type “AT+WSCC? and press ENTER
23) Type “AT+WCMT=1” and press ENTER to store these settings into the modem. The modem will be
automatically re-start with new settings. Please wait for 10-20 seconds prior to type other commands
24) Type “AT” and press ENTER (modem should reply with “OK”)
25) Type “AT+E1” and press ENTER (modem should reply with “OK”)
26) Type “AT+CICB=0” and press ENTER to allow CSD data connections
27) Close the HyperTerminal
28) Remove the serial cable
29) Switch-off the equipment
30) Reconnect the existing jumper cable with RS232 (modem)
Please note: not all the above mentioned parameters could be necessary. For any problem, please contact
our local subsidiary.
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
b. Models equipped with GSM modem
How to install/remove the SIM card from the built-in modem
• Open the repeater.
• Check that the switches inside the repeater are set to 0 - OFF (FIGURE 1a and b).
• Insert the SIM enabled to data transmission in not transparent mode 9600BPS (FIGURE 6)
FIGURE 6 – DETAIL OF THE SIM INSERTION
• Close the Management Module
• Switch on the equipment (AC voltage circuit breaker, ref. 59, 48Vdc circuit breaker, ref. 22, FIGURE
1a-b).
• Close the repeater.
7.
INSTALL THE OPERATION AND MAINTENANCE SOFTWARE OMT REPEATER
Install on your PC the Operation and Maintenance Terminal software to set and manage the equipment
(please refer to the software User’s manual).
The repeater can be managed in remote mode via a built-in modem, or in local mode.
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
START OMT Repeater IN LOCAL MODE
In LOCAL mode the notebook is connected to the repeater via RS232 serial cable.
- Open the repeater door (by unscrewing four screws located on the equipment front door).
Connect your notebook to the management module (connector RS232, ref. 34, FIGURE 7) using the
provided serial cable (null-modem type).
RS232
Link
ref. 59
LNA
HPA
RS232 (Repeater)
SPV BUS
BS 1
RL
+5V
OPERATING
OUT
OUT
ALARM
POWER SUPPLY
5V5
IN
RS232
Repeater
ref. 34
SPV BUS
IN
BS 2
132KHz
HIGH POWER AMPLIFIER
UP LINK
RS232 (Modem)
RS232
Modem
ref. 58
HIGH POWER AMPLIFIER
DOWN LINK
8.
10V5
LNA DOWN
Out
UP-LINK
In
BAND-SELECTIVE 2
In
DOWN-LINK
Out
DOWN-LINK
Out
In
BAND-SELECTIVE 1
In
UP-LINK
Out
LNA UP
FIGURE 7 – RS232 CONNECTORS
The connector RS232 (ref. 58,FIGURE 7) and the connector RS232 (ref. 59, FIGURE 7) are
connected with a cable (only in models equipped with CDMA modem).
Switch on your notebook and start Windows
To Run the program select the related folder in the Windows ‘Start’ menu and click.
The ‘Login panel’ is displayed (FIGURE 8).
FIGURE 8 – LOGIN PANEL
Select read/write user.
PLEASE NOTE It’s not requested to insert the password the first opening of the program. It’s
recommended to change the password to avoid undesired accesses to the program (to change the
password, please refer to the Operation and Maintenance Terminal Software User’s manual).
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 4
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91 080 0716F – Rel.06
-
Click ‘Ok’ to start the software.
The window ‘Communication settings’ is displayed: check that local ‘Connection mode’ is selected.
If remote Connection mode is selected it is possible to change the Connection mode as follows:
- select the ‘Edit and save’ button in the lower part of the panel to enable changes;
- select local Connection mode;
- press the ‘Edit and save’ button again to confirm (FIGURE 9).
Edit and save
button
FIGURE 9 – ‘COMMUNICATION SETTINGS’ PANEL
9.
SET THE REPEATER GAIN, FREQUENCY CENTER AND BANDWIDTH
Select the menu entry ‘Read’ in the ‘Communications’ menu, or click the ‘
the equipment configuration and status.
The software main window is displayed.
By means of the software set the repeater gain as described below.
Read’ button, to read
NOTE
How to modify parameters:
- Click on the ‘edit and save’ button, in the lower part of the window, to enable changes to the repeater
parameters.
- Click again on the ‘edit and save’ button to save changes.
- The menu entry ‘Write’, in the ‘Communications’ menu, makes it possible to apply changes to the
repeater. A password is required: default password is blank. To change the password please refer to
the software User’s manual.
800MHz-900MHz Off-Air Repeaters (OR Series)
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91 080 0716F – Rel.06
a) In the tree structure of the repeater system (Figure 9) select the repeater (double click on
‘Repeater’): on the right side of the window, the configuration and status panels of the repeater
will be shown (Description, Spectrum, Parameters, Alarms, Communications, Advanced).
b) In the description panel, the user should select (FIGURE 10) if the system is TDMA or CDMA.
This selection allows to load the right values of RF power transmitted by the HPAs (only for
800MHz repeaters).
FIGURE 10 – Selection TDMA / CDMA
c) In the ‘Spectrum’ panel (FIGURE 11)set both ‘UL-attenuation’ and ‘DL-attenuation’ to 30 (dB) maximum attenuation, i.e. minimum gain.
d) Connect the cable from the donor antenna to the BTS connector on the bottom of the repeater
(ref. 52, FIGURE 3).
e) Connect the MS connector on the bottom of the repeater (ref. 56, FIGURE 3) to a spectrum
analyzer.
f) In the Spectrum panel, set the Up-link frequency center and bandwidth.
In the same panel set the repeater gain (UL-Up-link- attenuation, DL-Down-link- attenuation).
PLEASE NOTE:
should it be necessary to set an attenuation greater than 15dB it is strongly recommended to
connect a fixed attenuator between donor antenna and the repeater BTS side port to avoid BTS
desensitisation due to excessive radiated up-link noise.
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 4
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91 080 0716F – Rel.06
g) Check via the spectrum analyzer that the output signal level (MS side) is correct.
When the output signal level is correct, disconnect the spectrum analyzer.
FIGURE 11 – ‘SPECTRUM’ PANEL - EXAMPLE
If the repeater is used in stand-alone configuration, connect the cable from the service antenna to
the MS connector on the bottom of the repeater (ref. 56, FIGURE 3).
If the repeater is the head station of an optical fiber system, refer to the OPTICAL FIBER COVERAGE
SOLUTIONS technical handbook to install and set Master Unit and Remote Units.
If the repeater is part of a cascade system, refer to the IN-LINE AMPLIFIERS technical handbook to
install and set in-line amplifiers.
During operation the equipment can be managed, both in LOCAL and in REMOTE mode, via the software.
In REMOTE mode the equipment is managed via a modem link. On the repeater side the modem is installed
within the equipment management module.
In case of repeater equipped with GSM modem, if installing /removing the SIM card from the built-in modem
is necessary, please refer to the for procedure 6b (HOW TO INSTALL/REMOVE THE SIM CARD FROM
THE BUILT-IN MODEM).
For details regarding the software, please refer to the software User’s manual.
4.3) CLOSING THE EQUIPMENT
The repeater front door has to be closed carefully to guarantee protection of the equipment (i.e. to prevent
dust and water getting inside the box). All the screws located on the equipment front door have to be
appropriately tightened. We suggest you use an X tightening sequence
4.4) ROUTINE MAINTENANCE
This equipment does not require any ORDINARY MAINTENANCE (or preventive maintenance) servicing.
800MHz-900MHz Off-Air Repeaters (OR Series)
CHAPTER 4
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91 080 0716F – Rel.06
ABBREVIATIONS AND ACRONYMS
AC
ALC
BDA
BTS
DC
DCS
EGSM
EMC
FET
GSM
GSM-R
HPA
IF
IP3
LNA
MMIC
MS
MTBF
MU
NF
OMC
OMT
PC
PEP
PLL
PSTN
RAM
RF
RL
RU
SAW
SIM
SPV
TTL
UMTS
UPS
VCO
Alternating Current
Automatic Level Control
Bi-Directional Amplifier
Base Transceiver Station
Direct Current
Digital Cellular System
Enhanced Global System for Mobile Communications
Electro-Magnetic Compatibility
Field-Effect Transistor
Global System for Mobile Communications
GSM - Railway
High Power Amplifier
Intermediate Frequency
Third order Intercept Point
Low Noise Amplifier
Monolithic Microwave Integrated Circuit
Mobile Station
Mean Time Between Failures
Master Unit
Noise Figure
Operation and Maintenance Center
Operation and Maintenance Terminal
Personal Computer
Peak Envelope Power
Phase-Locked Loop
Public Switched Telephone Network
Random Access Memory
Radio Frequency
Return Loss
Remote Unit
Surface Acoustic Wave
Subscriber Identity Module
Supervision
Transistor, Transistor, Logic
Universal Mobile Telecommunications System
Uninterruptible Power Supply
Voltage Controlled Oscillator
ABBREVIATIONS AND ACRONYMS

---

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