Andrew Wireless Innovations Group RPT-MR303V-90 Repeater User Manual M0041A8B

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Date Submitted	2001-11-30 00:00:00
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Creation Date	2000-10-30 18:19:39
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Document Author:	dietrich schmid

User’s Manual for Repeater MR303D Varia
User's Manual
for
MR303D Varia
Id.-Nos.: 152796, 152797 & 154595
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User’s Manual for Repeater MR303D Varia
Copyright  MIKOM, Buchdorf 2000
All rights reserved.
No parts of this publication may be
reproduced, stored in a retrieval system, transmitted in any form or by
any means, electronical, mechanical photocopying,
recording or otherwise, without prior written
permission of the publisher.
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User’s Manual for Repeater MR303D Varia
TABLE OF CONTENTS
LIST OF FIGURES AND TABLES
LIST OF ABBREVIATIONS
CONTENTS OF DELIVERY
HEALTH AND SAFETY WARNINGS
PREAMBLE
INTRODUCTION
1.1
The MR303D Varia
1.2
Functional Description
1.3
Downlink
1.4
Uplink
10
FUNCTIONS AND FEATURES
11
2.1
Configuration of the Connectors
2.1.1
RF Connectors
2.1.2
Power supply
11
11
12
2.2
Configuration of the LEDs
12
2.3
Mechanical Installation
13
2.4
Electrical Installation
14
SETTING INTO OPERATION
17
3.1
Adjusting the Frequency
17
3.2
Setting the Attenuation
17
APPENDIX
18
4.1
Electrical Specification
18
4.2
Mechanical Specification
19
4.3
Environmental and Safety Specifications
19
4.4
Spare part list
20
INDEX
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LIST OF FIGURES AND TABLES
figure 1-1 Block diagram ............................................................................................ 9
figure 2-1 Configuration of the connectors ............................................................... 11
figure 2-2 Installation drawing................................................................................... 13
figure 3-1 Channel setting for Id.No. 152796 & 154595 ........................................... 17
figure 3-2 Channel setting for Id.No. 152797............................................................ 17
figure 3-3 Usage of rotary switch for attenuation setting .......................................... 17
figure 4-1 Cabinet drawing........................................................................................ 19
LIST OF ABBREVIATIONS
ALC
BCCH
BITE
BTS
CEPT
D.I.C.E.
DL
ESD
ETS
FSK
GSM
Id.-No.
IF
LMT
OMC
PABX
PCMCIA
PSTN
Rev
RF
RLP
RSSI
UL
Automatic Level Control
Broadcast Control Channel
Built In Test Equipment
Base Transceiver Station
Conférénce Europe´ennedes Postes et Telecommunications
Distributed Indoor Coverage Equipment
Downlink
Electrostatic Discharge
European Telecommunication Standard
Frequency Shift Keying
Global System for Mobile communication
Identification Number
Intermediate Frequency
Local Maintenance Timeout
Operation and Maintenance Centre
Private Automatic Branch Exchange
Personal Computer Modem Communication International Association
Public Switched Telephone Network
Revision
Radio Frequency
Radio Link Protocol
Receive Signal Strength Indication
Uplink
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User’s Manual for Repeater MR303D Varia
CONTENTS OF DELIVERY
Qty
Repeater MR303D Varia
Qty
User’s manuals for repeater MR303D Varia
Qty
Set of test protocols consisting of an electrical acceptance test
protocol
and a safety test protocol regarding the power supply
Qty
Wall mounting template
HEALTH AND SAFETY WARNINGS
F Note:
F Note:
Electrical installation must be carried out in accordance with the
safety regulations of the local authorities. Due to safety reasons,
electrical installation must be conducted by qualified personnel only.
The cover of this unit should not be opened while power is applied.
Subsequent installations, commissioning and maintenance activities
that require the unit to be under power while the cover is open, must
only be carried out by suitably qualified personnel.
ESD precautions must be observed! Before commencing maintenance work, disconnect the repeater from mains.
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User’s Manual for Repeater MR303D Varia
PREAMBLE
In cellular systems, repeaters are used to extend the coverage of a base station in
regions where, due to topological or structural conditions, weak field strengths
disable communication. MIKOM is a leading manufacturer of repeaters, providing
excellent electrical characteristics. The repeaters are light-weight and easy to install.
MIKOM repeaters provide a preferred solution for extended cellular coverage.
This repeater has been built using only highly reliable materials. A comprehensive
quality assurance has been carried out on all fabrication steps, ensuring constant
quality of the product. Every repeater leaves the factory only after a thorough final
acceptance test, accompanied by a test certificate, which guarantees perfect
function.
Any intervention must be carried out by authorised persons only. If technical
assistance for the repeater MR303D Varia is needed, contact the local sales office
(see List of international sales offices on the following page) or contact MIKOM
directly at the following address:
MIKOM GmbH
Industriering 10
86675 Buchdorf
Germany
Tel: +49 (0) 9099 69 0
Fax: +49 (0) 9099 69 31
email: sales@mikom.com
http://www.mikom.com
When set-up is performed according to this manual, the repeater will operate
without complications for a significant length of time.
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User’s Manual for Repeater MR303D Varia
List of international sales offices
Allen Telecom
Allen Telecom
(Australia) P/L
6 Stuart Street
Forem France
30500 Bruce Industrial
Parkway
Cleveland, Ohio 44 139-3996 Padstow NSW 2211
USA
Australia
Z.I. des Ebisoires
78370 Plaisir
France
Phone: +1 ( 216 ) 349-8657
FAX: +1 ( 216 ) 349-8408
Phone: +61 (2) 9774-4200 Phone: +33-1-30-79-15-30
FAX: +61 (2) 9774-4500 FAX: +33-1-30-55-55-37
FOREM S.p.A.
AT Singapore
AT China
Via Archimede N. 22/24
20041, Agrate Brianza
80 Marine Parade Road
#19-1 Parkway Parade
Milan
Italy
Singapore 449269
CITIC Building, # 11-05
19 Jiangguomenwai
Avenue
Beijing
China 100004
Phone: +39-39-605-41
FAX: +39-39-605-4477
Phone: +65-345-8022
FAX: +65-345-8033
Phone: +86-10-6508-3088
FAX: +86-10-6508-3066
AT Canada
FOREM UK
AT Hong Kong
Unit D
1815 Ironstone Manor, # 12
Castle Industrial Park
Pickering, Ontario L1W 3W9 Pear Tree Lane
Canada
Newbury, Berkshire
U.K. RG 14 2EZ
Phone: +1 ( 905 ) 839-3474
FAX: +1 ( 905 ) 839-4663
1603 Remington Center,
23 Hung to road,
Kwun Tong, Kow Loon
Hong Kong
Phone: +44-1635-569-695 Phone: +852-2389-1844
FAX: +44-1635-569-463 FAX: +852-2389-4864
AT India
B-256 Ground Floor.
Chittaranjan Park
New Delhi 110019
Phone: +91-11-696-3918
FAX: +91-11-652-1648
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User’s Manual for Repeater MR303D Varia
1 INTRODUCTION
Cellular telephone systems transmit signals in two directions between base stations
and mobile telephones within the signal coverage area.
If weak signal transmissions occur within the coverage area due to indoor
applications, topological conditions or distance from the transmitter, a repeater is
used to extend transmission range. In the downlink path, the repeater picks up the
signal from a donor antenna of an existing cell, amplifies and re-transmits it into the
required dark spot. In the uplink direction, the repeater receives signals from mobile
stations present in its coverage area and re-transmits them to the corresponding
base station.
1.1 The MR303D Varia
The repeater MR303D Varia is a bi-directional amplifier with adjustable RFbandwidth. The first and the last channel of the transmission bandwidth can be set
manually by means of rotary switches. The repeater has been designed for
applications in medium sized rooms such as suites, offices and basements. A
quality connection with a mobile phone can usually not be established in these
rooms.
The repeater is equipped with a connector for an external receiving/transmitting
antenna which provides the RF connection to the mobile. Connection to the BTS can
be established via an outdoor antenna. Other components of the D.I.C.E. COAX
system can also be connected to the repeater.
The final amplifiers are protected by individual level limiters, which allow the mobile
unit to be operated in close proximity to the repeater. Third order intermodulation
products are kept below the CEPT limit of -36 dBm constantly, even if the repeater
receives the signals of more than one mobile unit.
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1.2 Functional Description
The MR303D Varia is a repeater operating in the GSM900 frequency range. The
operation principle for uplink and downlink is depicted in the following block
diagram:
figure 1-1 Block diagram
1.3 Downlink
Downlink signals are received by the external antenna and fed to the duplexer. The
duplexer is the frequency separation unit that splits and recombines uplink (UL) and
downlink (DL).
After processing through the duplexer the signals are transferred to a pre-amplifier
and then enter the attenuation selection. The gain of the repeater can be set by
introducing attenuation into the amplifier chain (see chapter 3.2 Setting the
Attenuation). Then the signals are relayed to a mixer. The mixer converts the signals
down to an intermediate frequency (IF). An IF filter provides the selectivity of the
repeater. After the IF filter the signals are reconverted to the original frequency again
with another mixer. A final amplifier amplifies the signal once again to the required
output power.
After amplification a power detection feature, called automatic level control (ALC),
measures the output power and controls the gain. The ALC keeps intermodulations
below - 36 dBm. Finally, the signals are supplied to the antenna output.
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1.4 Uplink
The uplink signals are received by the antenna and fed into the repeater where a
pre-selection of the frequency is made. The signals are then converted down to IF by
means of a mixer and an IF filter provides the selectivity against other frequencies.
After the re-conversion the signals are amplified in an amplifier that provides the
output power. The signals are then fed to the antenna via the duplexer.
In this link, an ALC and an automatic power adjust circuit (APAC) is provided. APAC
limits the output power if two carriers are present at the one UL input. This again
keeps intermodulations to the desired limit. The repeaters with Id.-Nos. 152797 &
154595 provide an attenuation selection unit, which allows the gain to be set on UL
and DL -simultaneously, but not separately- by introducing attenuation into the
amplifier chain. (See chapter 3.2 Setting the Attenuation).
In the MR303D the bandwidth of the RF modules can be set within the GSM900
band to a desired value with rotary-switches on the outside of the modules. To set a
defined bandwidth, the start channel, as well as the stop channel must be adjusted
with the rotary-switches. (See chapter 3.1 Adjusting the Frequency).
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2 FUNCTIONS AND FEATURES
2.1 Configuration of the Connectors
figure 2-1 Configuration of the connectors
2.1.1 RF Connectors
The RF connectors (SMA female) are situated on both sides of the repeater. These
ports must be connected to the RF cables of the external antennas to/from the BTS
and to/from the mobiles.
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2.1.2 Power supply
The socket for the DC supply is located next to the RF connector to/from the BTS.
Power supply voltage is 6.7 Vdc, current is 1.6 A typ for Id.-No.: 152796 and 2.5 A
for Id.-Nos.: 152797 & 154595.
There are two possibilities to provide the MR303D Varia with power:
Ø Use external power supply and connection to the DC socket of the repeater. (Use
only the power supply that is delivered with the unit).
Or:
Ø Bias the MR303D Varia via the cable to the RF port to/from BTS. Ensure that the
correct voltage is fed into the repeater.
Note:
The DC socket of the MR303D Varia must not be connected if the
bias via RF cable is carried out.
2.2 Configuration of the LEDs
The LED to the left (DC alarm) can show green or red light:
Ø Green indicates the normal operation of the repeater. Power is present and the
current consumption of the unit is within the specifications.
Ø Red indicates that the current consumption of the repeater is not within defined
limits and that the repeater might not work properly. If the LED is off, the
MR303D Varia does not receive any DC power.
The right hand LED is the ALC/APAC alarm LED:
Ø LED “on” indicates that the input power received by the repeater is too high.
The output power of the repeater must be limited. This can be either done by the UL
ALC or APAC, or the DL ALC. Limitation of power ensures that the final stage is not
overdriven and that intermodulations are kept below the CEPT limits (- 36 dBm).
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2.3 Mechanical Installation
Install the MR303D Varia according to the directions provided with the wall mounting
sheet. The unit can be mounted horizontally or vertically. The alarm LEDs must point
downwards (horizontal mounting) or to the left-hand side (vertical mounting). The
unit has a weight of approximately 1.6 kg.
figure 2-2 Installation drawing
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2.4 Electrical Installation
F Note:
Electrical installation must be carried out in accordance with the
safety regulations of the local authorities. Due to safety reasons
electrical installation must be performed by qualified personnel
only.
Connection of the cables to/from the BTS and connection of power supply:
The cable to the external antenna to/from the BTS and the SMA-connector must be
ordered separately if reqired.
If the cable is part of the delivery, adjust the cable to a suitable length and connect
the SMA-connector.
Cut the antenna cable to the required
length. Strip the jacket at the cut end to the
length of 14 mm, the copper braiding
carefully to 8 mm and the inner insulation to
10 mm.
Place the split taper socket over the cable.
Insert the inner conductor into the opening
at the rear of the SMA pin. Slot the pin and
cable into the opening at the rear of the
SMA connector. Carefully push the copper
braiding over the knurled end of the
connector. Take care that none of the wires
of the copper braiding contact the inner
conductor. Pull the split taper socket over
the cable up to the base of the SMAconnector. Complete the connection by
crimping the split taper socket with crimping
pliers.
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split
taper
socket
base
knurled end
pin
crimed SMA
connector
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User’s Manual for Repeater MR303D Varia
Ø Connect one RF cable to the SMA
connector to/from mobile.
SMA connector
to/from mobile
Ø Connect one RF cable to the SMA
connector to/from the BTS.
Ø Connect the DC cable to the repeater
DC connector.
DC connector
SMA connector
to/from BTS
To avoid excess strain on the cables, the
cables must be fastened to the fixing straps
with cable clamps.
Fixing straps
E.g.: Horizontal mounting
The cables can be fed through the
repeater’s housing at one of the two semiholes provided to adapt the position of the
cable to the mounting position of the
repeater.
Ø Open off the required semi-hole by
removing the respective break-off-part
with pliers.
Break-off
parts
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Ø Adjust the frequency.
Frequency
adjust
Ø Set the attenuation
(at repeater with Id.-No.: 152797 &
154595 only!).
Gain setting
(Id.-No.: 152797
& 154595)
Ø Close the repeater by replacing the
cover.
Connector to
mains
Ø Connect the power supply to mains.
DC connector
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3 SETTING INTO OPERATION
3.1 Adjusting the Frequency
The setting of the start channel and the stop channel must be carried out in
accordance to the following tables:
figure 3-1 Channel setting for Id.No. 152796 & 154595
figure 3-2 Channel setting for Id.No. 152797
3.2 Setting the Attenuation
(Id.-Nos. 152797 & 154595 only)
The attenuation can be set by means of a rotary switch, which is located in the
centre of the repeater. Use a small screw driver to turn the switch carefully to the
position for the required attenuation. The label below the rotary switch shows the
possible positions and the corresponding values of the attenuation.
figure 3-3 Rotary switch for attenuation setting
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4 APPENDIX
4.1 Electrical Specification
MR303D Varia
Frequency range UL
DL
Band adjust
In band gain min./typ.
Gain ajust
Id.No.:152796
Id.No.:152797
Id.No.: 154595
890 – 915 MHz
880 – 905 MHz
890 – 915 MHz
935 – 960 MHz
925 – 950 MHz
935 – 960 MHz
BW manually adjustable from 1 to 24.8 MHz in steps of 200 kHz
55 dB / 58 dB
50 dB / 58 dB
50 dB / 58 dB
20dB in 2dB steps
20dB in 2dB steps
-max.
max.
In band ripple
± 2 dB
Out of band gain
according to GSM 0505 Ver. 4.20.0 Annex E
Delay
6 µsec max.
5 µsec typ.; 5.3
5 µsec typ.; 5.3
µsec. max.
µsec. max.
ICP3 Out @ max.gain
DL 26 dBm min
DL 35 dBm
DL 35 dBm
UL 33 dBm min
UL 42 dBm
UL 40 dBm
DL Pout 1 channel
8 dBm (ALC active)
13 dBm
13 dBm
DL Pout 2 channels
5 dBm each min.
10 dBm
10 dBm
(ALC active)
DL OICP3
26 dBm min
16 dBm typ; 18 dBm 16 dBm typ; 18 dBm
max.
max.
UL Pout 1 channel
24 dBm (ALC active)
22 dBm
22 dBm
UL Pout 2 channels
10 dBm each min.
15 dBm
15 dBm
(APAC active)
UL OICP3
33 dBm min.
Automatic power control
DL: ALC; UL: APAC and ALC
Max
input
without
10 dBm min.
10 dBm min.
10 dBm min.
damage
Noise figure UL
15 dB max.
12 dB max. @
15 dB max. @
DL
max.gain
max.gain
10 dB max.
12 dB max. @
10 dB max. @
max.gain
max.gain
Spurious emissions
according to GSM 05.05 ver 4.40.0 Annex E.2
Power consumption
12 Watts
15 Watts typ.
15 Watts typ.
(1.6 A @ 6.7 Vdc)
20 Watts max
20 Watts max
Power supply
external mains adapter 230 Vac (±10%) 50 Hz (±2 Hz) to 6.7 Vdc
Alarms
Amplifier failure and ALC (via LEDs)
RF connectors
SMA female, others on request
All data is subject to change without notice!
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4.2 Mechanical Specification
Height, Width, Depth
Sealing class
Weight:
approx. 226 x 310 x 61.5 mm
IP30
approx. 1600 g
figure 4-1 Cabinet drawing
4.3 Environmental and Safety Specifications
Specifications for environmental and safety conditions are according to ETS 300 019
(European Telecommunication Standard). For further details refer to the
environmental and safety leaflet for MIKOM repeaters.
All data is subject to change without notice!
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4.4 Spare part list
Part
Id.- No.
Repeater MR303 D Varia
Power Supply
152796
152797
146902
154595
INDEX
International sales offices......................................... 7
Introduction............................................................... 8
Abbreviations ............................................................ 4
Address of MIKOM.................................................. 6
LEDs........................................................................ 12
Downlink path........................................................... 9
Health and safety warnings....................................... 5
Installation
Electrical ............................................................ 14
Mechanical ......................................................... 13
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Setting of
Attenuation......................................................... 17
Frequency........................................................... 17
Specifications.......................................................... 18
Uplink path.............................................................. 10
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