Powerwave Technologies 5JS0081 900 MHz Repeater User Manual ARL Compact Repeater User s Manual

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User’s Manual
ALR Compact Repeater
VD203 67/EN - English
Future on Demand.
ALLGON Systems AB
ALR Compact Repeater
User’s Manual
ALR Compact Repeater
Low Power Band Selective Repeater
–
English
VD203 67/EN - User’s Manual
Rev. 1A 2000-07
ALLGON Systems AB
ALR Compact Repeater
This document describes installation, commissioning and the design of the Allgon ALR Compact Repeater.
Communication between the Allgon ALR Compact Repeater and an operator is carried out either by using Allgon OMT32
(Operation and Maintenance Terminal), or Allgon OMS (Operation and Maintenance System). OMT32 is described in the
AR Repeaters and OMT32, User’s Manual. OMS is described in the Advanced Repeater OMS, User’s Manual.
Hardware and software mentioned in this document are subjected to continuous development and improvement.
Consequently, there may be minor discrepancies between the information in the document and the performance and
design of the product. Specifications, dimensions and other statements mentioned in this document are subject to change
without notice.
In this document, the ’<>’ brackets are used to indicate function keys contrary to a series of key strokes
’’ = the Del(ete) key, ’Del’ = D, e, l.
Allgon and its suppliers shall not be liable for any damages related to the software or hardware, or for any other damages whatsoever caused of the use of or
inability to use any Allgon product. This is applicable even if Allgon has been advised of the damage risk. Under any circumstances, Allgon’s entire liability
shall be limited to replace such defective software or hardware which was originally purchased from Allgon.
Teflon is a registered trademark of Du Pont. Other trademarks mentioned in this document are trademarks or registered trademarks of their respective
owners.
This document is produced by El, Tele & Maskin Ingenjörsfirma AB, Huddinge, Sweden.
Printed in Sweden.
Allgon Systems AB, SE-187 80 Täby, Sweden
Phone: +46 8 540 822 00 – Fax: +46 8 540 834 80 – Internet: www.allgon.com
This document or parts of it may not be reproduced without the written permission of Allgon Systems AB.
Infringements will be prosecuted. All rights reserved.
Copyright © Allgon Systems AB, Sweden, 1994-2000.
VD203 67/EN - User’s Manual
Rev. 1A 2000-07
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ALLGON Systems AB
ALR Compact Repeater
Contents
Abbreviations ...............................................................................................................
1. Safety .......................................................................................................................
2. Introduction
2-1
2-2
2-3
2-4
2-5
3. Installation ................................................................................................................
3-1
3-1
3-1
3-1
3-1
3-2
3-3
3-6
3-9
3-9
3-10
3-10
3-10
3-11
3-12
3-12
3-12
3-13
1-1
Static Electricity .................................................................................................. 1-2
.............................................................................................................
Repeater Type ....................................................................................................
Using Repeaters .................................................................................................
Shaded Area .................................................................................................
Sports Arena ...................................................................................................
Siting the Repeater ............................................................................................
Sunshine .........................................................................................................
Shelter .............................................................................................................
Outdoor Installation and Service Limitations ..............................................
Dimensions and Weight ....................................................................................
Mounting .............................................................................................................
Connection ........................................................................................................
Connection Ports and Station Ground ............................................................
Station Ground ..............................................................................................
P112 PC Port ..................................................................................................
P113 Parking Device .....................................................................................
P118 Repeater to Repeater Link Port ..........................................................
P119 Alarm Port .............................................................................................
P120 Door Switch ..........................................................................................
P124 Repeater to Repeater Link Port ..........................................................
P130 RCC Port ...............................................................................................
Mains Breakdown Relay ....................................................................................
4. Commissioning ........................................................................................................
4-1
Starting the Repeater ........................................................................................ 4-2
Indicators ....................................................................................................... 4-3
Repeater Configuration .................................................................................... 4-4
5. Functional Description and Design
.......................................................................
Repeater Design ................................................................................................
The Main Repeater Units ..............................................................................
Block Diagram ....................................................................................................
Downlink Signal Path .....................................................................................
Uplink Signal Path ..........................................................................................
Band Selective Compact Repeater Block Diagram .................................
RCC ................................................................................................................
R2R .................................................................................................................
Alarm ..............................................................................................................
Repeater Setup .............................................................................................
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5-1
5-2
5-3
5-4
5-4
5-4
5-5
5-6
5-6
5-7
5-7
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ALLGON Systems AB
ALR Compact Repeater
Board and Unit Descriptions .............................................................................
DCC - Directional Coupler for Compact ...................................................
DPX - Duplex Filter .........................................................................................
BSC Band Selective Compact Board .........................................................
LNA - Low Noise Amplifier .............................................................................
PA - Power Amplifier ......................................................................................
Repeater Software and Hardware Compatibility .......................................
Cabling ...............................................................................................................
Compact Repeater With RCC Unit .............................................................
Compact Repeater Without RCC Unit ........................................................
R2R, Repeater To Repeater Link .......................................................................
Installation ......................................................................................................
Configuration .................................................................................................
6. Optionals ..................................................................................................................
RCC, Remote Communication Control Unit ...................................................
RCC For Radio Communication .................................................................
RCC For Telephone Line Communication .................................................
OMT32, Operation and Maintenance Terminal ..............................................
OMS, Operation and Maintenance System ....................................................
Battery Backup ...................................................................................................
Fiber Optic Unit ..................................................................................................
5-8
5-8
5-8
5-9
5-12
5-13
5-14
5-15
5-15
5-16
5-17
5-17
5-17
6-1
6-2
6-3
6-3
6-4
6-4
6-4
6-4
7. Repeater Alarms
..................................................................................................... 7-1
Alarm Reference List ......................................................................................... 7-2
Index ..............................................................................................................................
Questionnaire ..............................................................................................................
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Q-1
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ALLGON Systems AB
ALR Compact Repeater
Figures
Figure 2-1. Allgon ALR Compact Repeater .............................................................. 2-1
Figure 2-2. Repeater coverage of shaded area ..................................................... 2-4
Figure 2-3. Repeater in sports arena ........................................................................ 2-5
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
3-1.
3-2.
3-3.
3-4.
3-5.
3-6.
3-7.
3-8.
Repeater dimensions ...............................................................................
Attaching the repeater to a wall ...........................................................
Attaching the bracket to a pole ............................................................
Attaching the bracket to a mast ...........................................................
Attaching the repeater to the bracket ..................................................
MS and BS antenna connections ...........................................................
Connection ports and station ground ...................................................
Mains breakdown relay connection ......................................................
3-2
3-3
3-4
3-4
3-5
3-6
3-9
3-13
Figure 4-1. Indicators in the cabinet ......................................................................... 4-3
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
5-1.
5-2.
5-3.
5-4.
5-5.
5-6.
5-7.
5-8.
The main repeater units ..........................................................................
Block diagram ..........................................................................................
BSC, Band Selective Compact board ...................................................
LNA, Low Noise Amplifiers .......................................................................
PA, Power Amplifiers .................................................................................
Cabling with RCC unit .............................................................................
Cabling without RCC unit .......................................................................
Repeater to Repeater Link ......................................................................
5-3
5-5
5-9
5-12
5-13
5-15
5-16
5-17
Figure 6-1. The RCC unit ............................................................................................ 6-2
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ALLGON Systems AB
ALR Compact Repeater
Abbreviations
Abbreviations used in this manual, in the software, and in the repeater:
AGC
AMPS
BCCH
BS
BSC
CDMA
CW
DCC
DAMPS
DCS
DL
DPX
EEPROM
EGSM
ETACS
ETSI
GSM
HW
LED
MS
MSC
NMT
OMS
OMS/PC
OMT32
OMT32/PC
PCN
PCS
PSM
PTFE
RCC
RF
RSSI
RTC
SW
TACS
TDMA
UL
UPS
VD203 67/EN - User’s Manual
Automatic Gain Control
Advanced Mobile Phone Service
Broadcast Control Channel (GSM broadcast channel time slot)
Base Station, BS antenna = towards the base station
Band Selective Compact repeater board for adjustable bandwidth
Code Division Multiple Access
Continuous Wave
Directional Coupler, Compact
Digital Advanced Mobile Phone Service
Digital Communication System (same as PCN)
Downlink signal direction (from base station via repeater to mobile station)
Duplex filter
Electrical Erasable Programmable Read Only Memory
Extended Global System for Mobile communication
Extended Total Access Communication System
European Telecommunications Standard Institute
Global System for Mobile communication
Hardware
Light Emitting Diode
Mobile Station, MS antenna = towards the mobile station
Mobile Switching Center
Nordic Mobile Telephone system
Operation and Maintenance System
Desktop or notebook with installed OMS software
Operation and Maintenance Terminal
Desktop or notebook with installed OMT32 software
Personal Communication Network (same as DCS)
Personal Communication System
Power Supply Module
Polytetrafluoro Ethylene (Teflon)
Remote Control unit for Compact repeater
Radio Frequency
Received Signal Strength Indication
Real Time Clock
Software
Total Access Communication System
Time Division Multiple Access
Uplink signal direction (from mobile station via repeater to base station)
Uninterruptible Power Supply
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ALLGON Systems AB
ALR Compact Repeater
Safety
1. Safety
Any personnel involved in installation, operation or service of Allgon
repeaters must understand and obey the following:
• Allgon repeaters are designed to receive and amplify signals from one or
more base stations and retransmit the signals to one or more mobile
stations. Also, the repeaters are designed to receive signals from one or
more mobile stations, amplify and retransmit to the base stations. The
repeaters must be used exclusively for these purposes and nothing else.
• Repeaters supplied from the mains must be connected to grounded
outlets and in conformity with any local regulations.
• The power supply unit contains dangerous voltage that can cause
electric shock. Disconnect the mains prior to any work in the repeater.
Any local regulations are to be followed when servicing repeaters.
Authorized service personnel only are allowed to service repeaters while
the mains is connected.
• The repeater cover must be secured in opened position, e.g. by tying it
up, at outdoor repeater work. Otherwise, the cover can be closed by the
wind and cause your fingers getting pinched or your head being hit.
• When working on a repeater on high ground, e.g. on a mast or pole, be
careful not to drop parts or the entire repeater. Falling parts can cause
serious personal injury.
• Any repeater, including this repeater, will generate radio signals and
thereby give rise to electromagnetic fields that may be hazardous to the
health of any person who is extensively exposed to the signals at the
immediate proximity of the repeater and the repeater antennas.
• Repeaters equipped with an optional remote communication control
BERYLLIUM OXIDE
unit (RCC) have a dummy load in the directional coupler (DCC) that
contains beryllium oxide (BeO). Beryllium oxide is poisonous if present
as dust or smoke which can be inhaled. Do not file, grind, machine, or
treat this part with acid.
• The coaxial cable insulation is made of PTFE, polytetrafluoro ethylene,
HYDROGEN FLUORIDE
that gives off small amounts of hydrogen fluoride when heated.
Hydrogen fluoride is poisonous. Do not use heating tools when
stripping off coaxial cable insulation.
No particular measures are to be taken in case of fire because the
emitted concentration of hydrogen fluoride is very low.
• A lithium battery is permanently mounted on the repeater board. Due
to the risk of explosion, this battery must only be removed from the
board by an Allgon authorized service technician.
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ALLGON Systems AB
ALR Compact Repeater
Safety
Static Electricity
Static electricity means no risk of personal injury but it can severely
damage essential parts of the repeater, if not handled carefully.
Parts on the printed circuit board as well as other parts in the repeater
are sensitive to electrostatic discharge.
Never touch the printed circuit board or uninsulated conductor
surfaces unless absolutely necessary.
If you must handle the printed circuit board or uninsulated conductor
surfaces, use ESD protective equipment, or first touch the repeater
chassis with your hand and then do not move your feet on the floor.
Never let your clothes touch printed circuit boards or uninsulated
conductor surfaces.
Always store printed circuit boards in ESD-safe bags.
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ALLGON Systems AB
ALR Compact Repeater
Introduction
2. Introduction
Figure 2-1. Allgon ALR Compact Repeater
Allgon repeaters are used to fill out uncovered areas in cellular mobile
systems, such as base station fringe areas, road tunnels, business and
industrial buildings, etc.
A repeater receives signals from a base station, amplifies and retransmits
the signals to mobile stations. Also it receives, amplifies and retransmits
signals in the opposite direction. Both directions are served
simultaneously.
To be able to receive and transmit signals in both directions, the repeater
is connected to a donor antenna directed towards the base station and to
a service antenna directed towards the area to be covered.
Control of the repeaters is performed using a desktop or notebook loaded
with the Allgon OMT32, Operation and Maintenance Terminal, which can
communicate with the repeaters, either locally or remotely via modem.
Remote operation can be performed either via a traditional telephone line
or via a mobile phone that can be installed inside the repeater.
To be able to control many Allgon AR repeaters in common, there is an
Allgon OMS, Operation and Maintenance System.
The compact repeater is described in this manual. OMT32 is described in
the AR Repeaters and OMT32, User’s Manual. OMS is described in the
Advanced Repeater OMS, User’s Manual.
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ALLGON Systems AB
ALR Compact Repeater
Introduction
Repeater Type
The following repeater type is currently available:
• Band selective repeater with adjustable bandwidth
Band selective repeater with adjustable bandwidth
The band selective compact repeater has filters that can be set to various
bandwidths. This repeater type is used for analog or digital systems, such
as NMT, GSM, TACS/ETACS, AMPS, DAMPS and CDMA.
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ALLGON Systems AB
ALR Compact Repeater
Introduction
Using Repeaters
In areas where the radio signal propagation is poor repeaters can be used
to fill out those areas which are not covered by the base station.
The following scenarios are examples on this:
–
–
–
–
–
Sports arenas
Fair halls
Large shopping centres
Road and railway tunnels
Indoors in buildings with metal or concrete walls
Other examples where repeaters can be used to increase the coverage are:
– Shaded areas
– Fringe coverage areas
In areas where the traffic intensity is low, it is not cost efficient to install
a base station. An Allgon repeater, which can be installed with a
minimum of investments, is a much better solution. You save installation
costs as well as operational costs.
Examples of using repeaters
Two examples are described in the following sections. An outdoor
example in a shaded valley and an indoor example in a sports arena.
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ALLGON Systems AB
ALR Compact Repeater
Introduction
Shaded Area
A valley is shaded by hills. There is a base station 5 kilometers away, but
the lowest signal strength in the valley is less than –100dBm. A mast
used for other purposes is available for a repeater installation. The mast
height is 42 meter and it is located on a hill. The scenario is illustrated
in Figure 2-2.
Donor antenna
Service antenna
Figure 2-2. Repeater coverage of shaded area
The donor antenna of the repeater was mounted at the top of the mast
and the service antenna was mounted at the half mast. The antenna
isolation was measured to over 100dB. The repeater was set to 70dB gain.
Measured levels:
Received signal level
Donor antenna gain
Cable loss
Repeater input level
Adjusted repeater gain
Repeater output level
Cable loss
Service antenna gain
Radiated output level
– 60.0 dBm
15.0 dBi
– 5.0 dB
– 50.0 dBm
70.0 dB
20.0 dBm
– 5.0 dB
8.0 dBi
23.0 dBm
The measured result in the valley was better than –90dBm.
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ALLGON Systems AB
ALR Compact Repeater
Introduction
Sports Arena
A 2000 spectators sports arena with metallic roof had an indoor signal
strength too low to provide a fair service in most parts of the arena. The
nearest base station was 8 kilometers away and it was equipped with one
carrier only.
A donor antenna directed towards the base station was mounted on a
mast outside the building and a repeater was installed inside the building
with the service antenna on the arch vault. The scenario is illustrated in
Figure 2-3.
Donor antenna
Service antenna
Figure 2-3. Repeater in sports arena
The antenna isolation was measured to over 85dB.
Measured levels:
Received signal level
Donor antenna gain
Cable loss
Repeater input level
Adjusted repeater gain
Repeater output level
Cable loss
Service antenna gain
Radiated output level
– 80.0
15.0
– 5.0
– 70.0
dBm
dBi
dB
dBm
70.0 dB
0.0 dBm
– 2.0 dB
7.0 dBi
5.0 dBm
The signal strength was fair for service in the entire arena.
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ALLGON Systems AB
ALR Compact Repeater
Installation
3. Installation
Before installation, read carefully Chapter 1, Safety.
Siting the Repeater
Allgon repeaters are designed for outdoor usage. However, humidity and
temperature changes may have affect on the reliability. A preferable site
for the repeater is thus indoor, in a tempered and ventilated room.
Sunshine
If a repeater is placed outdoor and can be exposed to direct sunshine, it is
essential that the air can circulate around the repeater with no obstacle.
The operating temperature must not exceed +55°C. A shelter can be used
to shade the repeater from direct sunshine.
Shelter
Allgon repeaters are designed with a weather proof outdoor case that can
be mounted without any kind of shelter from rain, snow or hail.
If a repeater is to be opened on the site when raining, snowing, or hailing
there must be some kind of permanent or temporary shelter. This is
applicable to gentle rainfall, snowfall or hail. Limitations for very bad
weather is found in the next section.
Outdoor Installation and Service Limitations
Sited outdoors, the repeater must not be opened for installation or
service at bad weather, such as:
–
–
–
–
VD203 67/EN - User’s Manual
Intense rainfall, snowfall or hail
Storm or high wind
Extremely low or high temperature
High humidity of the air
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ALLGON Systems AB
ALR Compact Repeater
Installation
Dimensions and Weight
The dimensions of the repeater, including the mounting bracket, is shown
in Figure 3-1. The repeater chassis consists of two main parts, a cabinet
in which the circuitry is housed, and a cover.
Mounting bracket
Cabinet
Cover
385
(15.2")
15
(0.6")
385 (15.2")
110
(4.3")
Figure 3-1. Repeater dimensions
Approximately repeater weight
Repeater with cover ................................................................... 10Kg (22 lbs)
It is not recommended to remove the cover from the cabinet at the site.
However, if the cover, for some reason, has to be removed from the
cabinet, then disconnect the interconnection cables, close the cover,
remove the hinge shafts, and remove the cover.
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ALLGON Systems AB
ALR Compact Repeater
Installation
Mounting
The ALR repeater is easy to mount, either by anchoring the repeater in
the fixing holes, or by using the EA101 57/1 Pole Mounting Bracket kit,
containing a mounting bracket, clamps for 40mm – 110mm round pole,
and fixing screws for fastening the repeater to the mounting bracket.
The mounting bracket is shown in the figure. The holes are threaded
(M6) and correspond to the mounting holes in the repeater.
1. Mount the repeater.
Normally, the repeater is mounted on a wall, pole, or mast. These
mounting cases are shown below.
LO
HI
ANT
ANT
HI
LO
Figure 3-2. Attaching the repeater to a wall
Figure 3-2 shows how to mount the repeater to a wall using four
fixing screws. You can use screws for maximum 13mm (1/2") hexagon
socket wrench, e.g. 6mm (1/4") bults.
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ALLGON Systems AB
ALR Compact Repeater
Installation
Figure 3-3. Attaching the bracket to a pole
Figure 3-3 shows a bracket attachment to a pole using the mounting
bracket and the clamps provided with the bracket.
Figure 3-4. Attaching the bracket to a mast
Figure 3-4 shows a bracket attachment to a mast using two angle
irons and four M6 (1/4") screws. The screw heads can be slided into
the bracket profile as shown in the figure.
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ALLGON Systems AB
ALR Compact Repeater
Installation
LO
HI
ANT
ANT
HI
LO
Figure 3-5. Attaching the repeater to the bracket
If the mounting bracket is used, then mount the repeater on the
bracket using the four fixing screws provided with the mounting
bracket kit (see Figure 3-5).
2. Mount the donor antenna directed towards the base station antenna.
3. Mount the service antenna directed towards the area to be covered by
the repeater.
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ALLGON Systems AB
ALR Compact Repeater
Installation
Connection
LO
HI
ANT
ANT
HI
LO
Mains
MS
BS
Figure 3-6. MS and BS antenna connections
1. Connect the service antenna (MS) and donor antenna (BS) coaxial
cables (see Figure 3-6). N type female connectors are used in the
repeater.
The donor antenna (BS) is connected to the right in the cabinet.
The service antenna (MS) is connected to the left in cabinet.
2. Connect the mains to the repeater Power Supply Module, PSM, in
the PSM connector.
The Compact repeater is approved in accordance with EN and
UL/cUL regulations. This is, however, only valid if a classified power
cord is used.
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ALLGON Systems AB
ALR Compact Repeater
Installation
To get the repeater to meet these regulations, select one of the
following classified and approved cord types:
EN - H 05 W5 - F HMR
UL - AWM Style 2587
CSA - AWM 1 A/B 11 A/B
For outdoor use the power cord should meet at least IP65
encapsulation requirements.
The repeater PSM must be grounded. Make sure the ground cable
part is connected to ground in the PSM connector.
Ground is marked with the following symbol:
LO
HI
3. Connect external alarm sensors (burglary, fire, etc.) and other
external alarm equipment (optical or acoustic signal, etc.), if any.
Cables for this installation is taken through a free strain relief
bushing at the bottom of the repeater, in the same way as the mains
cable and the antenna cables.
ANT
ANT
HI
LO
P119
External
alarm sensors
External alarm is connected to the P119 alarm port located in the
center of the cabinet (see Figure 3-7 on page 3-9). Use a 7 pole
female connector.
The P119 port is described on page 3-11.
LO
LO
ANT
HI
HI
ANT
LO
ANT
HI
HI
ANT
P118
LO
P118
4. Connect the Repeater to Repeater Link cable, if this feature is to be
used. The R2R net cable is connected to the P118 or P124 Repeater
to Repeater Link ports to the right in the repeater. Connection and
termination is described on page 3-10.
Any cable type can be used for indoor installation.
The following cable type is recommended for outdoor installation:
Li 2YC11Y, 2x2xAWG24/222, non-halogen, Metrofunkkabel-Union.
LO
HI
LO
ANT
ANT
HI
HI
ANT
ANT
LO
P118
HI
LO
P118
>25m
If the link cable between two repeaters in an R2R net is longer than
25 meters, then an RS-485 repeater is required, see the figure.
Free strain relief bushings at the bottom of the repeaters are used for
the external net cables.
The P118 and P124 Repeater to Repeater Link ports are described on
page 3-10 and page 3-12.
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ALLGON Systems AB
Not used RCC unit:
ALR Compact Repeater
Installation
5. This step is applicable only if the repeater has an RCC unit which is
not used (or has been removed).
If the P130 cable connector has been removed, then pin 1 and 2 of the
P130 port must be interconnected with a jumper. Do not interconnect
any other position than between pin 1 and 2 of the P130 port.
The jumper is found in the P113 parking device if not used in the
P130 port.
The P130 port is described on page 3-12 and the P113 parking device
is described on page 3-10.
LO
ANT
HI
ANT
HI
LO
P112
6. Set up a PC with OMT32 to the repeater by connecting a standard
RS-232 serial cable between a COM port on the PC and the P112 PC
port located to the right in the repeater cabinet (see Figure 3-7 on
page 3-9).
Port P112 is described on page 3-10.
Now, you can commission the repeater as described in Chapter 4.
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ALR Compact Repeater
Installation
Connection Ports and Station Ground
Connectors involved in the installation are described below.
Station ground is also detailed below.
LO
ANT
HI
DPX
MS
DPX
BS
ANT
HI
LO
DCC
RCC
P120
P112
P119
P113
P130
P118
P124
MS
BS
Figure 3-7. Connection ports and station ground
Station Ground
There is a ground screw (M6) on the repeater that is intended for station
ground (see Figure 3-7). This screw must be used only for station
grounding.
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ALLGON Systems AB
ALR Compact Repeater
Installation
P112 PC Port
PC port P112 is a RS-232 port used for local PC communication.
P112 is a 9 pole D-sub female connector located to the right in the cabinet
(see Figure 3-7).
Connector pinning
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Not used
Data from repeater to OMT32
Data from OMT32 to repeater
DTR from OMT32 to repeater
GND
DSR from repeater to OMT32
RTS from OMT32 to repeater
CTS from repeater to OMT32
Not used
P113 Parking Device
P113 is a parking device for a jumper used for the P130 port. The jumper
is used to interconnect pin 1 and pin 2 of the P130 port when there is no
RCC remote communication control unit connected to the repeater.
When an RCC unit is connected to the repeater, then the jumper can be
placed in P113.
P113 is an unconnected 2 pole male connector located to the right in the
cabinet, adjacent to the P130 connector (see Figure 3-7).
P118 Repeater to Repeater Link Port
P118 is used for the Repeater to Repeater Link feature (R2R net).
P118 is a 5 pole male connector located to the right in the cabinet,
adjacent to the P124 connector (see Figure 3-7).
The P118 and P124 ports are identical an connected in series. One of the
connectors are intended to be used from the previous repeater in the net
chain, and the other connetor to the next repeater in the net chain.
Either of P118 or P124 can be used for the first and the last repeater in
the net chain.
Use straight connection between P118 and P124 connectors.
No termination is required for the outermost repeaters in an R2R net.
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ALR Compact Repeater
Installation
P119 Alarm Port
Alarm port P119 is used for external alarm sensors and alarm equipment.
P119 is a 7 pole male connector located in the center of the cabinet (see
Figure 3-7).
The port has four alarm inputs, EAL1 - EAL4.
The four alarm inputs
The inputs are low-level inputs with common ground (AIC).
Use insulated switch or relay to initiate alarms (open switches in normal
operating mode, closed switches cause alarm).
The alarm switch connection can be toggled between being active open or
active closed. This is further described in the AR Repeaters and OMT32,
User’s Manual.
The alarm input voltage ratings, related to ground, are:
Vinmax = 5.5V
Vinmin = –0.5V
Connector pinning
Pin
Pin
Pin
Pin
Pin
Pin
Pin
AIC Ground
AIC Ground
AI1 External
AI2 External
AI3 External
AI4 External
Not used
alarm
alarm
alarm
alarm
input
input
input
input
–
–
–
–
EAL1
EAL2
EAL3
EAL4*
EAL4 can also be configured as door alarm with settable alarm level.
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ALR Compact Repeater
Installation
P120 Door Switch
P120 is used for repeater door alarm. An internal door switch is
connected to this port to activate door alarms.
P120 is a 3-pole male connector located in the center of the cabinet,
adjacent to the P119 alarm connector (see Figure 3-7).
The alarm level for this input is always Warning w ceasing.
This alarm input is separated from the alarm inputs in the P119 alarm
connector. The EAL4 in the P119 alarm port (pin 6) can also be
configured as door alarm input with settable alarm level.
The door switch alarm is activated 30 seconds after the door switch has
been activated.
Connector pinning
Pin 1
Pin 2
Pin 3
Ground
Alarm input
Power (5V, 10mA for the door alarm circuitry)
P124 Repeater to Repeater Link Port
P124 is used for the Repeater to Repeater Link feature (R2R net).
P124 is a 5 pole male connector located to the right in the cabinet,
adjacent to the P118 connector (see Figure 3-7).
The usage of P118 and P124 is described on page 3-10.
P130 RCC Port
The P130 RCC port is used for connecting an RCC mobile phone/modem
remote control unit.
P130 is a 34 pole 2 line male connector located to the right in the cabinet
(see Figure 3-7).
The P130 connector contains modem/telephone line connection, RCC
power supply, etc.
33
34
If there is no RCC remote communication control unit connected to the
P130 port, then pin 1 and pin 2 must be interconnected with a jumper
(see P113 on page 3-10).
Pin 1 and 2 of the P130 port MUST ALWAYS be interconnected to provide
voltage supply to a part of the repeater circuitry.
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ALR Compact Repeater
Installation
Mains Breakdown Relay
To be able to distinguish PSM faults from power failure, a mains
breakdown relay must be used on the repeater mains supply.
The mains breakdown relay is not included in the repeater. So, it has to
be mounted outside the repeater chassis. The relay intended for this
purpose must fulfil the following specifications:
Relay specifications
Closing time:
max. 30 milliseconds
Insulation coil/contact: min. 4KV
Mains connected relay must be in compliance with valid local regulations.
Connection
• Connect a normally closed relay contact to pin AI1 and AIC on the
P119 alarm connector (closed contact at no current). Alarm is initiated
by short circuiting the AI1 and AIC inputs as shown in Figure 3-8. The
P119 alarm connector is detailed on page 3-11.
• Connect the relay coil. It must be supplied from the same fuse as the
repeater.
LO
ANT
HI
ANT
HI
LO
P119
P119:
AI1
P119:
AIC
Figure 3-8. Mains breakdown relay connection
• After commissioning, set the mains breakdown feature as described in
the AR Repeaters and OMT32, User’s Manual.
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ALR Compact Repeater
Commissioning
4. Commissioning
Read carefully Chapter 1 Safety before commissioning the repeater.
Check all connections made during the installation. Also, ensure that
both the mains plugs for repeaters equipped with two power supply units
are connected to outlets supplied from the same fuse.
To fulfill the IP65 weather protective requirements, ensure that the cable
strain relief bushings are properly tightened. Also, ensure that the
gaskets at the cable inlets and on the cabinet are properly fitted and not
damaged.
When the installation is checked, commission the repeater as described
below.
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ALR Compact Repeater
Commissioning
Starting the Repeater
1. Connect the repeater to the mains.
2. Check the four LEDs downmost in the repeater (see Figure 4-1).
A correct power-up is indicated as follows:
BOOT
Red LED that is lit with a steady light when the system boots, i.e. for
10 - 15 seconds after the mains is switched on. Then, it flashes for
the next 5 - 10 seconds. After that, if no error is detected, the LED
is off.
FAULT
Red LED that flashes 15 - 20 seconds after the mains is switched on.
Then, it flashes for less serious alarms (ERROR) and is lit with a
steady light for fatal alarms (CRITICAL).
OPER
Green LED that lights up approx. 20 seconds after the mains is
switched on. It shows, with a steady light, that the repeater is ready
for operation.
PWR
Yellow LED which is lit with a steady light after the mains is
switched on. Indicates present power.
External indicators on the repeater front
Yellow
Operation LED which lights up approx. 20 seconds after the mains is
switched on. At steady light the repeater is ready for operation.
Red
Alarm LED which indicates ERROR alarms with flashing light and
CRITICAL alarms with steady light.
When the indicators show operational mode, the repeater can be
configured for operation by using an OMT32/PC. This is further detailed
in the AR Repeaters and OMT32, User’s Manual.
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ALR Compact Repeater
Commissioning
Indicators
LO
HI
ANT
ANT
R2R
HI
DATA
BOOT FAULT OPER
LO
PWR
Figure 4-1. Indicators in the cabinet
Figure 4-1 shows the repeater indicators . There are also two external
indicators on the repeater front cover.
Repeater to Repeater Link
indicators
The two upper indicators, R2R and DATA, indicates the following R2R
status:
R2R
Green LED that indicates, with a flashing light, that the repeater
currently is a R2R Control Station. A steady light indicates that the
repeater is not currently a Control Station, or there is no more repeater
in the net. Only one repeater in an R2R net can show a flashing green
LED at the same time.
DATA
Blue LED that indicates data transmission in the net.
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ALR Compact Repeater
Commissioning
Repeater Configuration
The repeater is now ready to be configured in accordance with the site
conditions and system performance requirements. Pay especial attention
to the antenna isolation described in the AR Repeaters and OMT32,
User’s Manual.
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ALR Compact Repeater
Functional Description
5. Functional Description and Design
Allgon repeaters work as bi-directional on-frequency amplifiers.
A repeater receives, amplifies, and retransmits signals downlink and
uplink simultaneously, i.e. from the base station via the repeater to the
mobile stations and from the mobile stations via the repeater to the base
station.
The repeater is connected to a BS antenna, directed towards the base
station, and to a MS antenna directed towards the area to be covered.
These antennas are connected to the repeater with N type male
connectors.
To prevent instability due to poor antenna isolation, a built-in antenna
isolation supervision feature reduces the gain level automatically when
poor antenna isolation is detected.
The Allgon repeaters are controlled by powerful microprocessors.
Alarm and operational LEDs are visible on the repeater front.
The repeater works with convection cooling without fan.
Operational parameters such as gain, power levels, etc. are set using a
desktop or notebook and the Allgon OMT32, which communicate, locally
or remotely via modem, with the repeater. Remote operation is
performed using a telephone line or a built-in mobile phone equipped with
a data interface.
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ALR Compact Repeater
Functional Description
Repeater Design
The repeater is housed in a cast aluminium chassis that is waterproof,
class NEMA4/IP65, for outdoor use. The chassis has a design suited for
outdoor use as well as indoor use.
The chassis consists of a cabinet and a cover joined with hinges. The
cabinet contains the repeater circuitry.
The cover has two external LEDs for operation and alarm indication.
Both the uplink and downlink circuitry is built up on a single BSC board
inside the repeater. The various amplifiers and RF modules are
individually shielded by metal covers.
The BSC band selective compact repeater board
The band selective compact repeater board can handle one wide band
repeater channel, uplink and downlink. The band width is adjustable.
Other units
In addition to the BSC repeater board, the repeater contains:
• DPX Duplex filter, located on the upper part of the repeater.
• DCC Directional Coupler for Compact, located on the RCC unit in
repeaters with an RCC unit that works in the same cell system as the
repeater.
• RCC unit (optional), see Chapter 6, Optionals. This is located to the
right in the cabinet.
• PSM Power Supply Module, located to the left in the cabinet.
• The repeater is equipped with an R2R, Repeater to Repeater Link
feature that can be used to communicate with several repeaters.
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ALR Compact Repeater
Functional Description
The Main Repeater Units
DPX Downlink Uplink DPX RCC
circuitry circuitry BS
MS
LO
HI
ANT
HI
ANT
PSM
BSC
MS
Mobile station
antenna
LO
BS
Base station
antenna
DCC
Figure 5-1. The main repeater units
A cabinet (the left part in Figure 5-1) for the band selective Compact
repeater is equipped with a BSC board including the downlink and uplink
circuitry. The described cabinet is equipped for bi-directional band
selective operation and RCC remote control.
There are BSC boards with adjustable bandwidth for 800MHz – 900MHz
and 1800MHz – 1900MHz band selective systems.
Main units:
VD203 67/EN - User’s Manual
BSC
DCC
DPX
PSM
RCC
Band Selective Compact board, adjustable bandwidth
Directional Coupler for Compact RCC antenna
Duplex filter
Power Supply Module
Repeater Communication Control unit
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ALR Compact Repeater
Functional Description
Block Diagram
A band selective compact repeater block diagram is found on page 5-5.
The signal path and some of the most important features are described
after the block diagram.
Downlink Signal Path
The downlink signal path (HI), i.e. from the base station through the
repeater to the mobile station, is described after the block diagram.
Uplink Signal Path
The uplink signal path (LO), i.e. from the mobile station through the
repeater to the base station, is identical to the downlink path the other
way round. Only some levels and component values differ.
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ALR Compact Repeater
Functional Description
Band Selective Compact Repeater Block Diagram
BAND SELECTIVE COMPACT REPEATER
BSC - DL
PA
LNA
P126
P128
HI
ANT
BS
antenna
ANT
DCC
BS
DPX
BS
MS
antenna
LO
DPX
HI
RCC
LO
DPX
MS
ANT
BSC - UL
PA
LNA
Base station
P121
P122
RCC
Modem
P130
Battery
P118
P130
BSC - control circuitry
MSC
PSM
P124
P112
P119
Telephone line
Modem
External alarm sensors
Figure 5-2. Block diagram
Figure 5-2 shows a block diagram of the band selective compact repeater.
This diagram is applicable to repeaters for e.g. NMT, GSM, TACS/ETACS,
AMPS/DAMPS and CDMA systems.
Downlink signal path
The signal from the base station is received via the repeater BS antenna
and is forwarded through a directional coupler (DCC) to the ANT input of
a duplex filter (DPX). The signal from the HI output of the duplex filter
is, via the P126 port, fed to the BSC board. On the BSC board, the signal
is amplified in a low noise amplifier (LNA) and is then entered the band
selective amplifier circuitry.
The first mixer stage in the BSC amplifier, which is controlled by a
synthesizer, converts the received frequency down to the IF frequency.
The signal is then filtered by SAW bandpass filters and, not shown in the
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ALR Compact Repeater
Functional Description
figure, amplified before it is fed to the second mixer stage for conversion
back to the original frequency.
The SAW filter combination is adjustable and can be software changed
from within OMT32 (or OMS) to cover various band widths.
The following power amplifier (PA) is controlled by the BSC control
circuitry. The amplifier gain will be reduced to avoid instability due to
poor antenna isolation.
A detector in the PA stage measures continuously the output level. The
signal from this detector is used by the automatic gain control, AGC, to
supervise and, if necessary, reduce the output power to keep it under a
maximum level. The AGC gain control affects several of the amplification
stages.
The output signal from the BSC board is taken from the P128 port and it
is fed to the HI port of a duplex filter (DPX). The output signal from the
ANT port of the duplex filter is fed to the repeater MS antenna.
RCC
The optional RCC Remote Communication Control unit, if used, is located
inside the repeater, see Figure 5-1 on page 5-3.
Communication with the base station is performed by means of a built-in
mobile feature that has the antenna connected to the BS directional
coupler (DCC). Data is transferred between the repeater and the built-in
RCC unit via the P130 port.
The RCC unit is powered via the P130 port and the unit has a battery
with capacity to send a number of alarms if a mains power failure occurs.
R2R
The Repeater to Repeater Link feature makes it possible to communicate
with a number of repeaters via one RCC unit in one of the repeaters in an
R2R net. Several RCC units can also be used in the same net.
The repeaters in the R2R net are connected to the P118 port and to the
P124 port.
The R2R feature is further described on page 5-17.
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ALR Compact Repeater
Functional Description
Alarm
Alarm signals from external sensors are received via the P119 alarm port.
The software on the BSC board is able to activate acoustic or visual alarm
or direct the alarm to the P130 PCC port to be forwarded, via the RCC
unit (or modem and telephone line) to OMT32 (or OMS) located in an
operation and maintenance central.
Alarms can be configured from OMT32 (or from OMS).
Repeater Setup
The repeater parameters can be set locally by means of a desktop or
notebook loaded with the OMT32 software (or the OMS software). The
PC or notebook is connected to the repeater via the P112 PC port.
The repeater parameters can also be set remotely by means of an RCC
Remote Communication Control unit (or via a telephone line and a
modem) connected to the repeater via the P130 PCC port.
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ALR Compact Repeater
Functional Description
Board and Unit Descriptions
Cabling between boards and units is found on page 5-15 (with RCC unit)
and page 5-16 (without RCC unit).
DCC - Directional Coupler for Compact
There is one BS directional coupler in a repeater equipped with an RCC
Remote Communication Control unit.
This unit connects the RCC radio modem antenna to the base station
antenna.
Connection
To the right in the cabinet
DCC/BS
Port
ANT
DPX
RCC
Connected to
BS antenna.
ANT on the DPX/BS duplex filter.
RCC radio modem antenna.
DPX - Duplex Filter
The DPX duplex filters on the BS and MS sides are identical.
Connection
To the left in the cabinet
DPX/MS
Port
ANT
HI
LO
To the right in the cabinet
DPX/BS
Port
ANT
HI
LO
VD203 67/EN - User’s Manual
Connected to
MS antenna port.
P128 on the BSC board (downlink PA power amplifier).
P122 on the BSC board (uplink LNA low noise amplifier).
Connected to
DPX on the DCC/BS directional coupler (BS antenna signal).
P126 on the BSC board (downlink LNA low noise amplifier).
P121 on the BSC board (uplink PA power amplifier).
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ALLGON Systems AB
ALR Compact Repeater
Functional Description
BSC Band Selective Compact Board
The compact band selective repeater is built up mainly on a single BSC
board that contains all the amplification circuitry for uplink and downlink
and the control circuitry. This board contains also all the ports for alarm,
local control, remot control, etc.
Figure 5-3 shows the BSC board in the compact repeater.
P126
LO
P127
P122
P123
HI
ANT
LNA/DL
LNA/UL
DPX
MS
DPX
BS
ANT
HI
PA/DL
LO
PA/UL
P128
P121
P119 P120
P115
P131
P111
P112
P118
P113
P118
P124
P130
Figure 5-3. BSC, Band Selective Compact board
The left upper part of the BSC board contains the downlink circuitry. The
downlink signal path starts from port P126, is fed to the LNA, Low Noise
Amplifier, then it passes a number of amplifiers, and is finally fed to the
PA, Power Amplifier before it is fed, via port P128, to the DPX/MS
HI port to be forwarded to the MS antenna.
The right upper part of the BSC board contains the corresponding
circuitry for the uplink signal path, from port P122, via port P121,
DPX/BS HI port and to the BS antenna.
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ALR Compact Repeater
Functional Description
BSC control circuitry
The BSC control circuitry is the central part of the repeater, located in
the lower part of the BSC board (inside the dotted line in Figure 5-3).
The BSC control circuitry contains a microprocessor, main memory, flash
memory for the BSC software, EEPROM memory for parameters, memory
for the event log and statistics, a REFO reference oscillator, ports for local
and remote communication, battery powered real-time clock, etc.
The BSC control circuitry supervises and controls operational parameters
such as gain control, etc. The BSC control circuitry takes also care of
alarms and the event log, password, logon, and many other tasks.
The BSC control circuitry is also an interface when communicating with
an OMT32 or OMS, locally or remotely.
The BSC software can be downloaded from OMT32 or OMS either locally
or remotely.
The real-time clock in the BSC control circuitry is used for alarm and for
the event log.
BSC software
The BSC board can be run with the SA102 04 software. The board can
store two software versions, located in segment 1 and segment 2 of the
flash memory as Application 1 and Application 2. The repeater will boot
on that software which is set as Primary (a description of the Primary
application is found in the AR Repeaters and OMT32, User’s Manual.
The compatibility between the BSC board and software is detailed in the
next section.
Caution
A lithium battery is permanently mounted on the BSC board. Due to the
risk of explosion, this battery must only be removed from the board by an
authorized service technician.
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ALR Compact Repeater
Functional Description
Connection and connector types
The BSC board is also a distribution board with most of the repeater
ports. The connector types are chosen to prevent unintentional mixing up.
Port
P111
P112
P113
P115
P118
P119
P120
P121
P122
P123
P124
P126
P127
P128
P130*
Connected to
LED board in the cover.
PC (serial RS-232).
Not connected (jumper parking device).
PSM - Power Supply Module
R2R connection to P118 or P124 in the
next compact repeater, or to the R2R
connector board in a standard AR repeater.
External alarm sensors and alarm
equipment.
Door switch (internal alarm).
HI on DPX/BS duplex filter (uplink output
signal).
LO on DPX/MS duplex filter (uplink input
signal).
P122 on another BSC board (currently not
used expansion output).
R2R connection to P118 or P124 in the
next compact repeater, or to the R2R
connector board in a standard AR repeater.
LO on DPX/BS duplex filter (downlink
input signal).
P126 on another BSC board (currently not
used expansion output).
HI on DPX/MS duplex filter (downlink
output signal).
RCC Remote Communication Control unit,
or modem for traditional telephone line.
Connector type
4 pole 1 line male.
9 pole D-sub female.
2 pole 1 line male.
5 pole 1 line male.
5 pole 1 line male.
7 pole 1 line male.
3 pole 1 line male.
Coaxial
Coaxial
Coaxial
5 pole 1 line male.
Coaxial
Coaxial
Coaxial
34 pole 2 line male.
Pin 1 and 2 of the P130 connector must be interconnected with a jumper
if the connector is not used.
Testpoints
There are no testpoints intended for field maintenance or calibration.
Availalbe testpoints on the board are used for factory calibration only.
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ALR Compact Repeater
Functional Description
LNA - Low Noise Amplifier
Two LNA, Low Noise Amplifiers, are located uppermost on the BSC board
in shielded covers. LNA/DL (downlink) is located to the left and LNA/UL
(uplink) to the right.
P126
LO
P127
P122
P123
HI
ANT
LNA/DL
LNA/UL
DPX
MS
DPX
BS
HI
ANT
PA/DL
P128
LO
PA/UL
P121
P111
Figure 5-4. LNA, Low Noise Amplifiers
Received signals from the duplex filters are fed to the LNA input
connectors P122 (uplink) and P126 (downlink). The output signals from
the LNA amplifiers are fed to the next amplifier stages for uplink and
downlink on the BSC board.
The P123 and P127 ports are expansion outputs for additional BSC
boards (not used in the currently available single band repeaters).
Connection
The P122, P123, P126 and P127 ports are connected as shown on
page 5-11.
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ALR Compact Repeater
Functional Description
PA - Power Amplifier
Two PA, Power Amplifier, are located in the middle of the BSC board in
shielded covers. PA/DL (downlink) is located to the left and PA/UL
(uplink) to the right.
P126
LO
P127
P122
P123
HI
ANT
LNA/DL
LNA/UL
DPX
MS
DPX
BS
HI
ANT
PA/DL
LO
PA/UL
P128
P119 P120
P121
P112
P111
P113
Figure 5-5. PA, Power Amplifiers
The final power amplification for the downlink signal is performed in the
PA/DL stage. Then the signal is fed via the P128 port to the HI port of
the DPX/MS duplex filter and from this filter to the MS antenna.
The uplink final power amplification is performed in the same way and is
fed to the BS antenna via the P121 port and the HI port of the DPX/BS
duplex filter.
Connection
The P121 and P128 ports are connected as shown on page 5-11.
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ALR Compact Repeater
Functional Description
Repeater Software and Hardware Compatibility
There may be different versions of the repeater software, which can be
combined with boards of various revisions. These have unique part
numbers and revision information. Below, you will find a table of
repeater software currently available in combination with BSC boards.
BSC Software
Part #
SA102 04
Software
Compatible
Comments
Revision with BSC board
R1A
K304/x
1800MHz – 1900MHz
K308/x
800MHz – 900MHz
x = digit indicating frequency and bandwidth
This information is updated 2000-06-20. As new versions of hardware
and software are released without prior noticing, contact your Allgon sales
representative if in doubt about the latest revision status.
For detailed information, refer to the release notes for the repeater
software to be downloaded (normally found in the readme.txt file, which is
supplied with the program files).
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ALLGON Systems AB
ALR Compact Repeater
Functional Description
Cabling
On the following pages, you will find cabling information for:
• Compact repeater with RCC unit, this page.
• Compact repeater without RCC unit, page 5-16.
Compact Repeater With RCC Unit
Figure 5-6 shows the compact repeater main cabling with an RCC Remote
Communication Control unit.
P126
P127
P122
P123
ANT
LO
LNA/DL
HI
LNA/UL
DPC
BS
DPC
MS
HI
ANT
LO
RCC
DCC/BS
DPX ANT
PA/DL
P128
RCC
PA/UL
P121
P111
P115
PSM
MS
BS
Figure 5-6. Cabling with RCC unit
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ALLGON Systems AB
ALR Compact Repeater
Functional Description
Compact Repeater Without RCC Unit
Figure 5-7 shows the compact repeater main cabling without an RCC
Remote Communication Control unit.
P126
P127
P122
P123
ANT
LO
LNA/DL
HI
LNA/UL
DPC
BS
DPC
MS
HI
ANT
LO
RCC
DCC/BS
DPX ANT
PA/DL
P128
RCC
PA/UL
P121
P111
P115
PSM
MS
BS
Figure 5-7. Cabling without RCC unit
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ALLGON Systems AB
ALR Compact Repeater
Functional Description
R2R, Repeater To Repeater Link
Figure 5-8. Repeater to Repeater Link
The Allgon Repeater to Repeater Link can be used in order to establish a
repeater network with up to 13 repeaters, one or several of which can
contain a phone line for communication with an OMT32 or an OMS.
All Allgon standard Compact repeaters include this feature.
All Allgon repeaters can be mixed in R2R nets (see Figure 5-8). For
standard AR repeaters, the R2R Repeater to Repeater Link feature is
optional and require certain hardware and repeater software versions.
Installation
All required R2R, Repeater to Repeater Link, circuitry is included in the
compact repeater. Only interconnecting cables are required to set up an
R2R net.
At least one RCC unit (or telephone line with modem) is required for the
remote communication.
Configuration
Configuration is described in AR Repeaters and OMT32, User’s Manual.
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ALLGON Systems AB
ALR Compact Repeater
Optionals
6. Optionals
This chapter describes the following optional accessories available for the
Allgon repeaters:
• RCC, Remote Control Unit for band selective systems, page 6-2.
• OMT32, Operation and Maintenance Terminal, page 6-4.
• OMS, Operation and Maintenance System, page 6-4.
• Battery Backup, page 6-4.
• Fiber Optic Interface, page 6-4.
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ALLGON Systems AB
ALR Compact Repeater
Optionals
RCC, Remote Communication Control Unit
As the mobile phone technology is developing very fast, this RCC may be
modified after issuing this manual. New types may also have been added.
For the latest details, please contact your local Allgon representative.
For remote control of Allgon Compact repeaters in band selective systems
an RCC Remote Communication Control unit is available. This unit
contains an integrated mobile phone, modem and power supply backup.
The RCC unit for the Compact repeater is mounted to the right inside the
repeater cabinet, see Figure 6-1.
LO
HI
ANT
ANT
HI
LO
RCC
Figure 6-1. The RCC unit
The RCC is connected to the P130 port on the BSC board.
Do not forget to put a jumper between pin 1 and 2 of the P130 connector
on the BSC board if the P130 cable connector is removed.
A jumper should be located in the P113 parking device (a 2-pole connector
used for this purpose).
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ALLGON Systems AB
ALR Compact Repeater
Optionals
RCC For Radio Communication
The RCC antenna for the radio modem is connected to the BS antenna
via an uplink directional coupler, DCC, located at the RCC unit to the
right in the cabinet, provided that the RCC and the repeater operate in
the same cell system.
RCC For Telephone Line Communication
In this unit, the telephone line will be connected to a terminal block on
the RCC unit. A free strain relief bushing at the bottom of the repeater is
used for the external telephone line cable.
RCC with a telephone line modem is not available when this manual is
released. Please, contact Allgon for further information about this
optional feature.
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ALLGON Systems AB
ALR Compact Repeater
Optionals
OMT32, Operation and Maintenance Terminal
The OMT32, Operation and Maintenance Terminal is an Allgon software
package for configuration and controlling a repeater by using a computer
with Windows 95/98 or NT 4.
The OMT32 can be used either locally, i.e. connected to the repeater, or
remotely via an RCC unit or a traditional telephone line and modem.
All repeater parameters and settings can be configured by menas of the
OMT32.
OMS, Operation and Maintenance System
The OMS, Operation and Maintenance System is an Allgon software
package for controlling a large repeater fleet by using computers with
Windows NT in networks with a common database.
The OMS is capable of operating a large number of repeaters. Multiple
modems can be used for several incoming and outgoing parallel activities,
such as polling, radio parameter configuration, software downloading, etc.
Battery Backup
Battery backup can be arranged by completing the repeater with an 25Ah
or 50Ah Allgon BBU, Battery BackUp unit. The Allgon BBU has an
exterior similar to the repeater which means that it can preferably be
mounted adjacent to the repeater.
Fiber Optic Unit
A FOU, Fiber Optic Unit that includes transmitter, receiver, alarm board
and power supply is available for the Allgon Compact repeater. The fiber
optic interface can be adapted for separate uplink and downlink fiber as
well as for bi-directional one-fiber distribution.
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ALLGON Systems AB
ALR Compact Repeater
Repeater Alarms
7. Repeater Alarms
This chapter contains a list of those alarms which are initiated in the
repeater and generated by the repeater control circuitry.
Critical, Error and Warning alarms can be sent automatically from a
repeater to an OMT32 and OMS and then be stored. These alarms can
then be viewed.
The alarm handling and facilities are described in the following manuals:
• AR Repeaters and OMT32, User’s Manual
• Advanced Repeater OMS, User’s Manual
The table starting on the following page contains those alarms that can be
generated by a Compact repeater.
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ALLGON Systems AB
ALR Compact Repeater
Repeater Alarms
Alarm Reference List
The following table contains the internal repeater alarms which can occur
and be shown in the OMT32 and OMS alarm window (additional alarms
may have been added to the system after issuing this manual).
ID
Alarm Text
Power supply
OMS Alarm Unit Alarm Level
Description
Ceasing
No
PSM
Critical
PSM in the cabinet does not work properly.
Repeater restart
Mains breakdown
Alarm reset
Mains bkd w
backup
Err in
AD-converter
New unit
detected
Inst. unit lost
10 EEPROM error
No
No
No
No
BSC
External
BSC
External
Ceasing
A sum signal from PSM indicates that at least one voltage
output has dropped. If no mains breakdown relay is used, then
the alarm will also be sent at mains breakdown.
PSM in the cabinet works properly again.
None
Ceasing is sent if the PSM works at start-up, and there is a
corresponding critical PSM alarm logged in the Events list. The
repeater will restart when the power is back and this alarm will
be sent.
Power on start, or user ordered reboot,
Warning
Logged to indicate a normal power up, or a restart ordered by
operator.
Software error restart, 1st – 7th time,
Error
Restart 1st to 7th time during a 14 day period. The counter is
reset every 14th day, counted from power up.
SW error restart 8th –10th time,
Critical
Restart 8th to 10th time during the 14 day period. At the 11th
time, the SW bank will be blocked and not used anymore until a
user ordered reset is performed, or power is switched off/on.
The mains power is gone.
Ceasing
Used with external relay indicating mains breakdown. The
external relay should be connected to External Alarm 1 and the
repeater configured to indicate this alarm. If no relay is used, a
mains breakdown will be reported as a PSU fault.
The mains power is back,
None
Sent if there is a corresponding critical mains breakdown alarm
logged in the Events list. The repeater will restart when the
power is back.
Alarm reset by the user.
Error
No
BSC
Ceasing
Warning
No
BSC
None
No
BSC
Error
No
BSC
Error
All alarms are reset. The alarm criteria will be re-evaluated and
reported, if still active.
Used to indicate that the mains is no longer available. Repeater
is powered by external battery backup unit.
Suggested remedy: Check the mains power.
The alarm criteria has ceased.
The analog-to-digital converter on the BSC board does not give
reliable values.
Compared to last power on, the BSC board has recognized at
least one additional hardware unit.
Compared to last power on, the BSC board lacks at least one
hardware unit.
EEP read or write fail.
Data cannot be written or read from the EEPROM on the BSC
board. User parameters are stored in the EEPROM.
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ALLGON Systems AB
ID
ALR Compact Repeater
Alarm Text
OMS Alarm Unit Alarm Level
Ceasing
11 Log memory fault
No
BSC
Error
Log memory fault.
12 High temperature
No
BSC
13 REFO error
15 CU battery fault
Yes
No
BSC
BSC
Warning
Ceasing
Error
Warning
Repeater Alarms
Description
Indicates that the log memory on the BSC board is faulty. The
repeater will not work. Not available in all BSC software
versions.
The BSC board temperature is higher than 90°C.
The BSC temperature has fallen below 90°C.
Low level from REFO is detected.
BSC RAM battery fault.
The battery for the RAM on the BSC board has a voltage
outside the normal 2.7 to 3.5 Volt. An alarm may be initiated at
start-up if the repeater has been stored out of power for a long
time.
16 SW load error
No
BSC
Ceasing
Error
Suggested remedy: Ensure the jumper on the BSC board is
mounted to charge the battery.
The alarm criteria has ceased.
Software load error.
An error has occurred during a software load process. The flash
memory does not contain a proper software.
17 Log cleared
18 RTC restarted
No
No
BSC
BSC
None
None
Warning
Suggested remedy: Check the BSC software using the OMT32
software manager. Do NOT restart the repeater.
Log memory has been cleared.
The check sum in the Events list memory is faulty. The log is
cleared. Can be caused by a bad RAM battery backup or low
voltage to the RAM.
The time is changed by the operator (logged to keep track of
changes made to the RTC).
Time reset to 1994-01-01.
The RTC was unable to keep track of the time did a reset.
19 RTC error
No
BSC
Error
Suggested remedy: Ensure the jumper on the BSC board is
mounted to charge the battery.
RTC does not operate.
The BSC has detected an error in RTC operation which makes
the time unreliable.
20 Door open alarm
No
21 External alarm 1
No
22 External alarm 2
No
23 External alarm 3
No
24 External alarm 4
No
30 No modem found
No
VD203 67/EN - User’s Manual
Suggested remedy: Replace the BSC board.
Configurable The door has been open more than 30 seconds without
disabling the alarm. EAL4 alarm.
Ceasing
The door has been closed more than 30 seconds, or the alarm
is disabled.
Warning
The door has been open more than 30 seconds without
disabling the alarm. P120 connector alarm.
Ceasing
The door has been closed more than 30 seconds, or the alarm
is disabled.
External Configurable External alarm input EA1 active more than 1 second.
Ceasing
External alarm input EA1 no longer active.
External Configurable External alarm input EA2 active more than 1 second.
Ceasing
External alarm input EA2 no longer active.
External Configurable External alarm input EA3 active more than 1 second.
Ceasing
External alarm input EA3 no longer active.
External Configurable External alarm input EA4 active more than 1 second.
Ceasing
External alarm input EA4 no longer active.
Remote ctrl None
No modem found, i.e. no answer is returned on a poll string to
the modem.
External
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ALLGON Systems AB
ID
Alarm Text
31 No carrier
32 No answer
33 No connection
OMS
Ceasing
No
No
No
ALR Compact Repeater
Alarm Unit Alarm Level
Remote ctrl
Remote ctrl
Remote ctrl None
Warning
34 Login failed
35 Remote
connection
36 Modem init failed
No
No
No
Repeater Alarms
Description
Not logged or not used.
Not logged or not used.
No connection at callback.
The repeater has tried to call as many times as stated in the
alarm call criteria. No connection was established.
No connection at alarm call.
BSC
None
Remote ctrl None
The repeater has tried to call as many times as stated in the
alarm call criteria. No connection was established. This alarm
does not generate a new attempt to transfer alarm by alarm call.
Invalid repeater password.
Modem connection to OMT32 opened.
Remote ctrl None
Not logged on BSC2. Login Registry gives same function and
more information about BSC2.
Initiation string to modem not OK.
The initiation string sent to modem is not Ok. The string may
contain commands not recognized by the modem. An alarm
might be sent anyway.
37 Remote timeout
No
Remote ctrl Warning
38 PIN code failed
No
Remote ctrl Warning
39 No phone
detected
No
Ceasing
Remote ctrl Warning
Suggested remedy: Check the modem using the OMT32 or
OMS modem debugger.
The time limit of 20 minutes is exceeded without extending the
timer. The modem connection is terminated by the repeater.
The PIN code sent to MS is incorrect. To unlock the MS/SIM
card, the PUK code will probably be needed.
The alarm criteria has ceased.
When using a PC-card together with the MS, the alarm
indicates contact with the PC-card, but MS is not present or
turned off.
Note: A Nokia MS does not power-up after power failure.
41 RF blocking
42 Antenna isolation
No
No
Ceasing
BSC UL/DL Error
Suggested remedy: Ensure the cellular phone is connected.
The alarm criteria has ceased.
Constant carrier, PA off.
Ceasing
BSC UL/DL Warning
Uplink carrier has been constantly above 27dBm for more than
10 seconds.
The criteria for the alarm has not been detected for 10 seconds.
Low antenna isolation.
The antenna isolation is lower than the gain set. Gain is
reduced by 10 – 13dB below the oscillation point.
Error
Suggested remedy: Decrease gain or increase antenna isolation.
Low antenna isolation at lowest gain.
The gain has been reduced as much as possible but the
oscillation still remains. The amplifier is turned off.
48 Battery backup
fault
No
External
50 Fiber optical error
No
External
VD203 67/EN - User’s Manual
Suggested remedy: Decrease gain or increase antenna isolation.
Ceasing
Normal operation again, i.e. no oscillation can be detected 13dB
above the gain set.
Error
If a battery backup unit alarm is connected to external alarm 2,
then the operator can configure the repeater to display this
alarm when the battery backup unit indicates alarm.
Ceasing
The alarm criteria has ceased.
Configurable If a fiber unit alarm is connected to external alarm 3, then the
operator can configure the repeater to display this alarm when
the fiber optical unit indicates alarm.
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ALLGON Systems AB
ID
Alarm Text
55 R2R queue full
ALR Compact Repeater
OMS Alarm Unit Alarm Level
Description
Ceasing
No
BSC
None
The R2R transmitting queue is full and messages are lost.
56 R2R node lost
No
57 R2R HW error
No
BSC
BSC
None
Suggested remedy: Check the R2R configuration and cables.
An R2R node is lost.
Error
Suggested remedy: Check if the node is still operating and
connected.
R2R hardware fault.
70 Bad table found
71 Table not found
No
No
BSC
BSC
Error
Error
72 Table database
err
121 Synthesizer fault
No
BSC
Error
122 Volt Reg fault
123 PA fault
Yes
Yes
Yes
125 High temperature
No
Yes
Suggested remedy: Replace the repeater.
A requested table contains information error (software error).
A requested table was not found in the database (software or
calibration error).
The database table is not found (calibration error).
BSC UL/DL Error
Unlocked synthesizer.
BSC UL/DL Error
BSC UL/DL Error
The frequency synthesizer is unlocked and the transmission can
take place on unknown frequency.
A DC voltage to an analog part of the board is missing.
Low power amplifier gain.
BSC UL/DL Warning
Error
Ceasing
126 High PSU
voltage
Repeater Alarms
BSC UL/DL Critical
The PA has too low output power for the RSSI and gain set.
Not available in all BSC software versions.
The BSC board temperature is higher than 85°C.
The BSC board temperature is higher than 95°C and the power
is turned off.
The temperature has fallen to below 70°C and the power is
turned on again.
The PA supply voltage is too high.
Suggested remedy: Ensure that correct PSM is used.
Remarks
The
The
The
The
Mains breakdown alarm (3) requires a relay not included in the repeater.
Door open alarm (20) requires an optional door switch.
Battery backup fault alarm (48) requires an optional battery backup unit.
Fiber optical error alarm (50) requires an optional fiber optical interface.
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ALLGON Systems AB
ALR Compact Repeater
Index
Index
Abbreviations ............................................................................................................... vi
AGC, Automatic Gain Control .................................................................................. 5-6
Alarm .......................................................................................................................... 5-7
Alarm reference list ................................................................................................... 7-2
AMPS .......................................................................................................................... 2-2
AMPS/DAMPS ........................................................................................................... 5-5
Battery backup ........................................................................................................... 6-4
BBU ............................................................................................................................. 6-4
Block diagram ............................................................................................................ 5-5
BOOT, red LED ......................................................................................................... 4-2
BSC control circuitry ..................................................................... 5-6, 5-9 - 5-10, 5-14
BSC software version ..................................................................................... 5-10, 5-14
BSC, Band Selective Compact board ................... 5-2 - 5-3, 5-5, 5-8 - 5-9, 5-11 - 5-12
Cabling
with RCC ............................................................................................................. 5-15
without RCC ....................................................................................................... 5-16
CDMA .................................................................................................................. 2-2, 5-5
CMB, Combiner unit ................................................................................................. 5-3
Commissioning ........................................................................................................... 4-1
Connection .................................................................................................................. 3-6
donor antenna ....................................................................................................... 3-6
external alarm ....................................................................................................... 3-7
mains ..................................................................................................................... 3-6
power cord ............................................................................................................. 3-6
RCC ........................................................................................................................ 3-8
Repeater to Repeater Link .................................................................................. 3-7
service antenna ..................................................................................................... 3-6
Connection ports ........................................................................................................ 3-9
DAMPS ....................................................................................................................... 2-2
DATA, blue LED ........................................................................................................ 4-3
DCC, Directional Coupler Compact ......................................................................... 5-2
DCC, Directional Coupler for Compact ............................................. 1-1, 5-5, 5-8, 6-3
Dimensions ................................................................................................................. 3-2
DL
See Downlink
Donor antenna .................................................................................. 2-4 - 2-5, 3-5 - 3-6
Door switch ............................................................................................................... 3-12
Downlink .......................................................................................... 5-4 - 5-5, 5-9, 5-12
DPX, Duplex filter ....................................... 5-2 - 5-3, 5-5 - 5-6, 5-8 - 5-9, 5-12 - 5-13
EAL1 ......................................................................................................................... 3-11
EAL2 ......................................................................................................................... 3-11
EAL3 ......................................................................................................................... 3-11
EAL4 .............................................................................................................. 3-11 - 3-12
ESD ............................................................................................................................. 1-2
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ALLGON Systems AB
ALR Compact Repeater
Index
External alarm ........................................................................................................... 3-7
External alarm input ............................................................................................... 3-11
FAULT, red LED ....................................................................................................... 4-2
Fiber Optic Unit ........................................................................................................ 6-4
Functional description ............................................................................................... 5-1
GSM ..................................................................................................................... 2-2, 5-5
Hail .............................................................................................................................. 3-1
Indicators
in the cabinet ........................................................................................................ 4-3
on the repeater front ............................................................................................ 4-2
Introduction ................................................................................................................ 2-1
LNA, Low Noise Amplifier .............................................................. 5-5, 5-8 - 5-9, 5-12
Mains breakdown relay ........................................................................................... 3-13
Mounting ........................................................................................................... 3-3 - 3-5
Mounting bracket ............................................................................................. 3-3 - 3-5
NMT ..................................................................................................................... 2-2, 5-5
OMS, Operation and Maintenance System ...................................................... 2-1,
OMT32, Operation and Maintenance Terminal .............................................. 2-1,
OPER, green LED .....................................................................................................
Outdoor installation ..................................................................................................
6-4
6-4
4-2
3-1
PA, Power Amplifier ........................................................................ 5-6, 5-8 - 5-9, 5-13
Ports
AI ......................................................................................................................... 3-13
ANT ....................................................................................................................... 5-8
DPX ........................................................................................................................ 5-8
HI .................................................................................................................. 5-8, 5-13
LO ................................................................................................................. 5-8, 5-12
OUT1 ..................................................................................................................... 5-8
P111 ..................................................................................................................... 5-11
P112 PC ....................................................................................... 3-8, 3-10, 5-7, 5-11
P113 Parking device .......................................................................... 3-10, 5-11, 6-2
P115 PSM ............................................................................................................ 5-11
P118 Repeater to Repeater Link .............................................................. 3-10, 5-11
P119 Alarm ...................................................................... 3-7, 3-11 - 3-13, 5-7, 5-11
P120 Door switch ...................................................................................... 3-12, 5-11
P121 .................................................................................................... 5-8, 5-11, 5-13
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ALLGON Systems AB
ALR Compact Repeater
Index
P122 ................................................................................................... 5-8, 5-11 - 5-12
P123 .......................................................................................................... 5-11 - 5-12
P124 Repeater to Repeater Link .............................................................. 3-12, 5-11
P126 ................................................................................................... 5-8, 5-11 - 5-12
P127 .......................................................................................................... 5-11 - 5-12
P128 .................................................................................................... 5-8, 5-11, 5-13
P130 PCC .............................................................................................................. 5-7
P130 RCC .................................................................................... 3-12, 5-7, 5-11, 6-2
RCC ........................................................................................................................ 5-8
Power cord ......................................................................................................... 3-6 - 3-7
PSM, Power Supply Module ............................................................................ 5-2 - 5-3
PWR, yellow LED ...................................................................................................... 4-2
R2R, green LED ......................................................................................................... 4-3
R2R, Repeater to Repeater Link .......................................... 3-10, 3-12, 4-3, 5-2, 5-17
Rain ............................................................................................................................. 3-1
RCC, Remote Communication Control .................................................................... 1-1
RCC, Remote Communication Control unit ..................................................... 5-2, 6-2
Repeater design .......................................................................................................... 5-2
Repeater setup ........................................................................................................... 5-7
Repeater to Repeater Link
See R2R, Repeater to Repeater Link
Repeater type ............................................................................................................. 2-2
Band selective repeater, adjustable band width ................................................ 2-2
Safety .......................................................................................................................... 1-1
beryllium oxide ..................................................................................................... 1-1
electric shock ......................................................................................................... 1-1
lithium battery ...................................................................................................... 1-1
polytetrafluoro ethylene ....................................................................................... 1-1
PTFE ..................................................................................................................... 1-1
Service antenna ................................................................................. 2-4 - 2-5, 3-5 - 3-6
Service limitations ..................................................................................................... 3-1
Shelter ......................................................................................................................... 3-1
Siting the repeater ..................................................................................................... 3-1
Snow ............................................................................................................................ 3-1
Software and hardware compatibility .................................................................... 5-14
Static electricity ......................................................................................................... 1-2
Station ground ........................................................................................................... 3-9
Sunshine ..................................................................................................................... 3-1
TACS/ETACS ...................................................................................................... 2-2, 5-5
Testpoints ................................................................................................................. 5-11
UL
See Uplink
Uplink ........................................................................................................ 5-4, 5-9, 5-12
Weight ......................................................................................................................... 3-2
VD203 67/EN - User’s Manual
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ALLGON Systems AB
ALR Compact Repeater
Questionnaire
Questionnaire
The aim of this manual is to guide you when installing and operating the
Allgon repeaters, and to answer questions that may turn up. To ensure
that we provide appropriate information for these purposes, we would
appreciate your views and suggestions on how to improve the manual in
this direction. Please, fill out the following questionnaire and send it to
us.
Have you read entire sections or do you use the manual to look up specific
information when needed?
q Read entire sections
q Look up specific information
Comments:
Do you think the information is easy to find and understand?
q Yes
q No
Comments:
Do you find any function of the Allgon repeater hard to understand, a
function which should be subjected to more detailed description?
q Yes
q No
If yes, which one:
Do you have any suggestions on how we can improve this manual?
Title (Mr/Ms/Other):
Initial:
Surname:
Job title:
Company:
Address:
City:
Country:
Phone:
Thanks for your kind help. It’s very valuable to us.
VD203 67/EN - User’s Manual
Rev. 1A 2000-07
Q-1
ALLGON Systems AB
ALR Compact Repeater
Questionnaire
POSTAGE
STAMP
Allgon Systems AB
Customer Support Centre
SE-187 80 Täby
Sweden
If you prefer to send by mail, fold here and tape.
No envelope required.
If you prefer to send by fax, use this number:
VD203 67/EN - User’s Manual
Rev. 1A 2000-07
+46 8 540 834 80
Q-2

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Title                           : ARL Compact Repeater, User's Manual
Description                     : English, Rev. 1A  2000-07, Online
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