Andrew Wireless Innovations Group RPT-MR801 CELLULAR REPEATER User Manual M0067A0A

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Document ID	54617
Application ID	Pwu88Utnj+SeDTBeKYEDSA==
Document Description	Users Manual for band or channel selective Repeater
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	200.11kB (2501353 bits)
Date Submitted	1999-08-17 00:00:00
Date Available	1999-12-06 00:00:00
Creation Date	0000-00-00 00:00:00
Producing Software	Acrobat PDFWriter 3.02 für Windows
Document Lastmod	1999-06-02 09:00:08
Document Title	M0067A0A.PDF
Document Creator	Microsoft Word

User’s manual for Repeater MR801B Power
User’s manual for
band or channel selective Repeater
MR801B Power
(Id.-No. 148613)
Author:
M0067A0A.doc
Approved:
Id.-No 151111
QA:
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User’s manual for Repeater MR801B Power
Table of Contents
LIST OF UNIT SPECIFIC ABBREVIATIONS
CONTENTS OF DELIVERY
HEALTH AND SAFETY WARNING
10
PREAMBLE
11
13
INTRODUCTION
1.1
Intended purpose
13
1.2
About the MR801B POWER
13
FUNCTIONAL DESCRIPTION
14
2.1
General
15
2.2
RF modules
15
2.3
Mother board
17
2.4
Control module SM 2009
18
2.5
Duplexer
19
2.6
Active combiner
20
2.7
Measuring aids
20
2.8
Power supply
21
2.9
Feed forward amplifier
22
FUNCTIONS AND FEATURES
23
3.1
Band and channel selectivity
23
3.2
Gain setting
23
3.3
ALC
24
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3.4
BITE and alarms
3.4.1
Handling of alarms
3.4.2
Status report
3.4.3
Severity levels
24
26
27
28
30
OPTIONAL EQUIPMENT
4.1
VSWR module
30
4.2
External alarms
30
4.3
Modem
32
4.4
Battery backup module
32
SPECIFICATION
34
5.1
Electrical specification
34
5.2
Mechanical specification
36
5.3
Environmental and safety
36
5.4
External electrical interfaces
5.4.1
Electrical power
5.4.2
RF connections
36
36
37
5.5
39
6.1
External RF output
INSTALLATION
40
Mechanical installation
41
6.2
Electrical installation
6.2.1
Grounding
6.2.2
Power connection
6.2.3
Connection of the antenna cables
44
44
45
45
46
7.1
SETTING TO WORK
Preparation
46
7.2
Setting of operational parameters
7.2.1
Manual settings by means of rotary switches
7.2.2
Settings via personal computer as terminal
7.2.3
Settings via modem
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47
49
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TROUBLE SHOOTING
53
8.1
Error indication
53
8.2
Boot process
53
8.3
Alarm monitoring with the STATUS HIST command
54
8.4
Power supply
54
8.5
General remarks
54
MAINTENANCE
55
9.1
General
55
9.2
Replacement of the fuses (mains)
55
9.3
Replacement of the power supply fuse
56
9.4
Replacement of the mains cable
56
9.5
Replacement of the RAM / RTC battery
57
9.6
Replacement of the dummy battery backup module
58
9.7
Replacement of duplexers
59
9.8
Replacement of RF modules
60
9.9
Replacement of the control module SM 2009
62
9.10
Replacement of power supplies
63
9.11
Replacement of active combiner modules
64
9.12
Replacement of feed forward amplifiers
65
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10
SPARE PARTS LIST
68
11
APPENDIX
70
11.1
Installation drawing of the Repeater
70
11.2
Top view of the Repeater (left side , one channel configuration)
71
11.3
Top view of the Repeater (right side, one channel configuration)
72
11.4
One channel configuration – cabling and block diagram
73
12
INDEX
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LIST OF FIGURES AND TABLES
table 1-1 List of international sales offices............................................................................12
figure 2-1 Block diagram of MR801B Power .......................................................................14
figure 2-2 Top view of an RF module...................................................................................16
figure 2-3 Top view of a mother board .................................................................................17
figure 2-4 Top view of the control module............................................................................18
figure 2-5 Top view of the duplexers ....................................................................................19
figure 2-6 Top view of the active combiner module..............................................................20
figure 2-7 Mounting position of power supplies....................................................................21
figure 2-8 ON / OFF position of external switch ...................................................................22
figure 2-9 Top view of the feed forward amplifier ................................................................22
figure 3-1 Position of rotary switches ...................................................................................23
figure 3-2 Position of failure LEDs.......................................................................................24
figure 3-3 Status hist report ..................................................................................................25
table 3-4 List of all available alarms .....................................................................................26
figure 3-5 Example of a GET1 report ...................................................................................27
figure 3-6 Example of a STATUS report ..............................................................................28
figure 4-1 Clamps for external alarms...................................................................................30
figure 4-2 Cable configuration and installation position........................................................32
figure 4-3 Mounting position of batteries..............................................................................33
figure 5-1 Screw terminal for mains cable ............................................................................37
figure 5-2 Connector panel layout ........................................................................................37
figure 5-3 Position of external RF output..............................................................................39
figure 6-1 System description ...............................................................................................40
figure 6-2 Wall mounting brackets .......................................................................................42
figure 6-3 Clearance distance................................................................................................43
figure 6-4 Grounding kit.......................................................................................................44
figure 6-5 Screw terminal .....................................................................................................45
table 7-1 LED indication ......................................................................................................46
figure 7-2 Position of the DIP-Switch 1................................................................................47
figure 7-3 Position of the rotary switches..............................................................................48
figure 7-4 Rotary switches and label.....................................................................................49
table 7-5 DIP-switch configuration.......................................................................................49
figure 7-6 DIP-switch 2 for local mode.................................................................................50
table 7-7 List of AT commands ............................................................................................52
figure 9-1 Top view of the Repeater .....................................................................................55
figure 9-2 Fuse terminal .......................................................................................................56
figure 9-3 Position of power supply fuse...............................................................................56
figure 9-4 Position of RAM/RTC battery.............................................................................58
figure 9-5 Position of dummy battery backup module...........................................................59
figure 9-6 Cable configuration of the duplexers ....................................................................60
figure 9-7 Connector panel layout ........................................................................................60
figure 9-8 Top view of an RF module...................................................................................61
figure 9-9 Position of hex coded rotary switches...................................................................62
table 9-10 Address of synthesizer .........................................................................................62
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figure 9-11 Position of control module .................................................................................63
figure 9-12 Power supply......................................................................................................63
figure 9-13 Position of special-nut M4..................................................................................64
figure 9-14 Position of counter sunk screws on active combiner ...........................................65
figure 9-15 Position of the feed forward amplifier reset board ..............................................66
figure 9-16 Position of feed forward amplifiers (4-channel Repeater) ...................................67
table 10-1 Spare parts list .....................................................................................................69
figure 11-1 Installation drawing of the Repeater ...................................................................70
figure 11-2 Top view of the Repeater (left side, one channel configuration)..........................71
figure 11-3 Top view of the Repeater (right side, one channel configuration) .......................72
figure 11-4 Cabling of one channel Repeater ........................................................................73
figure 11-5 Block diagram of one channel Repeater .............................................................74
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LIST OF UNIT SPECIFIC ABBREVIATIONS
ALC
BCCH
BITE
BTS
DL
ETS
FFwd
Id.-No.
I²C-Bus
LMT
MR
OMC
PABX
PCMCIA
PSTN
Rev
RF
RLP
RSSI
RTC
SDA
SCL
UL
UPS
VSWR
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Automatic Level Control
Broadcast Control Channel
Built In Test Equipment
Base Transceiver Station
Downlink
European Telecommunication Standard
Feed Forward Amplifier
Ident Number
Inter Integrated Circuit Bus ( Philips )
Local Maintenance Timeout
MIKOM Repeater
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
Real Time Clock
Serial Data Line of I²C-Bus
Serial Clock Line of I²C-Bus
Uplink
Uninterruptable Power Supply
Voltage Standing Wave Ratio
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CONTENTS OF DELIVERY
Qty
Repeater MR801B Power
Qty
User’s manual for Repeater MR801B Power ( Id.-No. 151111 )
Qty
Assembly guide for modification kits
Qty
Set of test protocols consisting of an electrical acceptance test protocol
and a safety test protocol applying to the power supply
Qty
Spare parts kit containing:
- 1 control cable RS232,
- 1 hex socket key, size 2.5
- 1 Torx key
- 5 socket head cap screws M3.0 x 30
- 2 tallow-drop screws TRX M5.0x25
- 2 tallow-drop screws M2.0x6
- 2 tallow-drop screws M3.0x5
- 4 straight pins 3.0 x 25
- 3 captive washers for M5
- 4 Tyraps
- 3x5g Silicon heat conducting paste
- 1 hex socket screw key , size 4, long
- 4 nuts
- 2 fuses 8 A type MT
- 5 socket head cap screws M3.0x20
- 2 countersunk head screw M3.0x20
- 4 special nuts M4
Qty
Wall mounting kit
- 2 mounting brackets
- 4 washers for M8
- 4 socket head cap screws M8.0x16
- 2 tire bolts
Qty
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Wall mounting sheet
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User’s manual for Repeater MR801B Power
HEALTH AND SAFETY WARNINGS
F Note:
F Note:
F Note:
F Note:
F Note:
M0067A0A.doc
The electrical installation has to be performed in accordance with the safety
regulations of the local authorities. Due to safety reasons the electrical
installation must be performed by qualified personnel. The cover of this unit
should not be opened while power is applied. Subsequent installation,
commissioning and maintenance activities that require the unit to be
powered with the cover open shall only be carried out by suitably qualified
personnel.
The grounding of the Unit has to be performed by all means. A grounding
bolt is provided at the cabinet in order to connect the earth bonding cable.
The Unit is heavy-weight. Make sure that a suitable mounting surface is
used. Only adequate manpower is allowed to handle the system.
ESD precautions have to be observed! Before maintenance work use the
available grounding system to connect ESD protection measures.
Due to power dissipation the Repeater may heat up the air volume inside the
cabinet and reach a very high temperature. Therefore the Repeater must be
mounted in the vertical plane to a wall or a mast without additional
enclosure to provide sufficient ventilation. Between the housing and the wall
a minimum distance must be kept in order to provide air circulation.
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PREAMBLE
In cellular systems, Repeaters are used to enhance the influence of a base station in regions
where, due to topological conditions, poor field strengths disable communication. MIKOM is
a leading manufacturer of Repeaters. They provide excellent electrical characteristics, they are
light-weight and easy to install. Hence, the MIKOM Repeater is the preferred solution.
Your Repeater has been built using high reliable materials. A comprehensive quality
assurance has been applied to all fabrication steps. This secures constant quality of the
product. Every Repeater leaves the factory only after a thorough final acceptance test,
accompanied by a test certificate, which warrants perfect function. The acceptance test
certificate is subject of the delivery, and it is fixed to the Repeater lid in order to provide a
quick reference for the user.
Any intervention has to be performed by authorized persons only. If you need technical
assistance with the Repeater MR801B Power contact your local sales office ( see table 1-1
List of international sales offices ) or MIKOM directly at the following address:
MIKOM GmbH
Industriering 10
86675 Buchdorf
Germany
Tel: +49 (0) 9099 6 90
Fax: +49 (0) 9099 69 31
email: sales@mikom.com
http://www.mikom.com
Under consideration of all references given in this manual, the Repeater should be taken into
service without any complications and should operate trouble-free for a long time.
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LIST OF INTERNATIONAL SALES OFFICES
Allen Telecom
Allen Telecom ( Australia ) Forem France
P/L
30500 Bruce Industrial Parkway PO Box 903
Z.I. des Ebisoires
Cleveland, Ohio 44 139-3996
Bankstown NSW 2200
78370 Plaisir
USA
Australia
France
Phone: +1 ( 216 ) 349-8657
FAX: +1 ( 216 ) 349-8408
Phone: +61 ( 2 ) 9793-9644
FAX: +61 ( 2 ) 9793-9747
Phone: +33-1-30-79-15-30
FAX: +33-1-30-55-55-37
FOREM S.p.A.
AT Singapore
AT China
Via Archimede N. 22/24
20041, Agrate Brianza
Milan
Italy
80 Marine Parade Road
#19-1 Parkway Parade
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
1815 Ironstone Manor, # 12
Pickering, Ontario L1W 3W9
Canada
Unit D
Castle Industrial Park
Pear Tree Lane
Newbury, Berkshire
U.K. RG 14 2EZ
1603 Remington Certer,
23 Hung to road,
Kwun Tong, Kow Loon
Hong Kong
Phone: +1 ( 905 ) 839-3474
FAX: +1 ( 905 ) 839-4663
Phone: +44-1635-569-695
FAX: +44-1635-569-463
Phone: +852-2389-1844
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
table 1-1 List of international sales offices
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1 Introduction
1.1 Intended purpose
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 because of 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 desired 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.
1.2 About the MR801B POWER
MIKOM’s MR801B POWER is available as a band or channel selective repeater for CDMA,
TDMA and analog networks.
This repeater bi-directionally amplifies signals between multiple mobiles and a single base
station in the AMPS 800 frequency band. It is employed where poor topological conditions
cause weak field strengths. It can provide highly selective amplification of band segments or
channels in the AMPS 800 band.
MR801B POWER modules can be combined with other repeater modules in order to create a
multi-band repeater system. Modules operating in PCS1900, GSM1800, GSM900, or iDEN
bands are available. When different modules are combined a common antenna and control
interface are available.
The MR801B POWER can be set-up locally or remotely. A PCMCIA slot for modem
operation is an available option. The repeater has a large number of functions that can be
monitored and changed by the operators via a terminal emulation program or the MIKOM
OMC software platform. An easy to understand and simple to learn communication language
is available to help the operator query status reports from the repeater or to change settings.
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2 Functional description
The Repeater MR801B Power can be equipped from one to four bands or channels.
The following block diagram shall illustrate the configuration of the system.
*: one physical module contains UL and DL
**: with more than two channels, the amplifiers are included; both are in one housing
figure 2-1 Block diagram of MR801B Power
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2.1 General
The Repeater consists of two amplifier chains, which are connected antiparallel. The
receive path of one direction is connected to the transmit path of the other direction by a
frequency separation unit, in the following denominated as a duplexer, which combines
both signals to an antenna (See chapter 2.5).
After the duplexer the signals get to a pre-amplifier and afterwards to an RF module (See
chapter 2.2). Then the signals are combined by the active combiner (See chapter 2.6) and
afterwards amplified by the feed forward amplifier (See chapter 2.9), which provides the
required output power.
After the final amplifier a power detection measures the output power and controls the
gain. This is called Automatic Level Control (ALC) and keeps intermodulations below an
adjustable value. Finally, the signals are fed to the built-in antenna of the Repeater.
2.2 RF modules
The task of the RF modules is to amplify the receive signals and to convert them into an
intermediate frequency. The signals, then, proceed a filter stage comprising of highly selective
filters, and run through a digital controllable attenuator. The attenuation can be set in steps of
2 dB, locally or remotely. By using the same synthesizer frequency, that was used to convert
the signals down to intermediate frequency, the intermediate frequency is mixed up to the
original frequency.
The synthesizer is controlled via an I²C-Bus. In case of a breakdown in mains, gain and
frequency data are non-volatile stored in an EEPROM on board.
See figure 2-2 Top view of an RF module for an exemplary channel or band module.
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figure 2-2 Top view of an RF module
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2.3 Mother board
The function of the mother board is the communication between the RF modules and the
control module via the I²C-Bus.
In the three and four channel configuration of the Repeater there is a mother board on the left
and on the right side, whereas in the one and two channel configuration there is only one
mother board implemented on the right side of the Repeater.
Mother boards are located underneath the RF modules.
figure 2-3 Top view of a mother board
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2.4 Control module SM 2009
The control module SM 2009 is a DOS compatible micro computer. The whole
communication between the operator and the Repeater can be done via the control module. By
using either the RS232 interface in connection with a modem card and a mobile the Repeater
can be controlled remotely or locally by using a VT100 terminal, i.e. a PC emulating the
VT100 terminal.
Frequency and gain, power down of RF stages and ALC can be controlled and status
messages can be received remotely. In case a modem or a mobile is connected, automatic
alarm messages can be received.
The data transfer between the control module SM 2009 and the mother board is realized by
the I²C-Bus system.
The I²C-Bus concept was developed by Philips for the serial connection of integrated circuits
within one device. Two wires, SDA - serial data and SCL - serial clock, carry information
between the devices connected to the bus. Each device is recognized by a unique address and
can operate either as transmitter or receiver.
All MR801B Power configuration parameters are stored in an EEPROM on the control
module if a power supply failure occurs.
figure 2-4 Top view of the control module
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2.5 Duplexer
The task of the duplexer is to isolate uplink from downlink, i.e. isolate transmit path from
receive path. The pass bandwidth of the duplexer is the entire width of the uplink band and
the downlink band.
UL frequency
824 - 849 MHz
DL frequency
869 - 894 MHz
Duplexer with connector to mobile side
30 dB
coupler
20 dB
coupler
30 dB
coupler
Duplexer with connector to BTS side
figure 2-5 Top view of the duplexers
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2.6 Active combiner
After passing through the RF modules, the signals will be combined by the active combiner
module in the UL and in the DL path. The active combiner will be followed by the feed
forward amplifier.
figure 2-6 Top view of the active combiner module
2.7 Measuring aids
With built-in RF probes test signals can be applied or detected. The probes provide a coupling
factor of 30 dB respectivly 20 dB. Each duplexer (uplink and downlink) is equipped with one
30 dB coupler, the UL Input duplexer additionally with a 20 dB coupler for a modem or
mobile (See chapter 4 Optional equipment). This facilitates measurements under all
operational conditions, while an antenna or a dummy load may be connected.
The position of the couplers on the duplexers is shown in figure 2-5 Top view of the
duplexers.
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2.8 Power supply
For the MR801B Power four power supplies are necessary.
Power supplies are available with different mains power. See list below for available power
supplies.
•
115 VAC ± 15% / 40 - 65 Hz
•
230 VAC ± 15% / 40 - 65 Hz
•
185 - 320 VAC / 40 - 65 Hz
•
24 VDC
•
42 to 60 VDC
•
80 to 130 VDC
The following figure shows the mounting position of the power supplies in the MR801B
Power cabinet.
power socket
(service connector)
figure 2-7 Mounting position of power supplies
Each power supply is equipped with a power socket, protected with two fuses. Each power
supply can be switched on or off by means of an external switch. The modules of the Repeater
are voltage free if all power supplies are switched off. The power socket, however, is still
provided with mains power.
See figure 2-8 ON / OFF position of external switch.
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figure 2-8 ON / OFF position of external switch
F Note:
To switch the whole Repeater voltage free, you have to remove the
fuses F1 and F2 on the screw terminal.
The power supply is factory-set.
2.9 Feed forward amplifier
The feed forward amplifier is the final stage which enables high output power as well as a
high ICP3. One amplifier has to be installed for each path, the uplink and downlink.
figure 2-9 Top view of the feed forward amplifier
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3 Functions and features
3.1 Band and channel selectivity
The selectivity is achieved by highly selective filters in the IF part of the band / channel
modules.
3.2 Gain setting
The gain can be changed by introducing attenuation into the amplifier chain. By using a rotary
switch the attenuation can be adjusted locally in the range from 0 dB to 30 dB maximum in
steps of 2 dB. The attenuation can be set for the UL and DL path separately.
The rotary switches are mounted on the mother board. These switches are accessible through
the long hole between the two RF modules (see figure 3-1 Position of rotary switches). They
can be adjusted easily by means of a small screwdriver.
long hole
figure 3-1 Position of rotary switches
For remote control an RS232 interface can be used to set the gain.
The functions of the control module may be used locally by means of a VT100 terminal or a
personal computer emulating the VT100 terminal. See also chapter 7.2, which deals with
settings of operational parameters.
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3.3 ALC
In order to protect the amplifiers from overload and to prevent the system to generate spurious
emission, the amplifiers have an Automatic Level Control, designed to limit the output power
to a defined level. A part of the output power is rectified, amplified and used to control an
attenuator network. In order to avoid oscillation, the control amplifier has an integrating
characteristic, so that a step function response obtains a delayed rise and decay.
FNote:
The ALC protects the final amplifier. To keep spurious emissions below
certain limits, the input power into the Repeater and the attenuation
settings of the repeater have to be considered properly.
3.4 BITE and alarms
The Built-In TEst concept comprises the monitoring of the power supplies, the operational
currents in the RF modules, the mother board and the remote control interface. Furthermore,
the synthesizer lock and the temperature of the Repeater are monitored.
There are three multicoloured LEDs mounted on the control module. The LED L3 indicates
the presence of electrical power of +12VDC in the Repeater. Every alarm is indicated by the
failure LEDs, L1 and L2.
Position of the LEDs on the control module is shown in the following figure.
figure 3-2 Position of failure LEDs
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All alarms can be checked by typing the ‘STATUS HIST’ command. Minor alarms with no
influence on the system can be cancelled by typing the ‘ALARMACKN’ command, e.g. ALC
active, VSWR or door open. The following print screen illustrates a possible ‘STATUS
HIST’ report
figure 3-3 Status hist report
In case a hardware failure is detected the concerning hardware module has to be replaced. An
alarm can be acknowledged manually by software command. If all alarms have been
acknowledged the summary error LEDs are set back to green indication.
In case of mains power failure all data of the STATUS HIST list are lost.
The alarm can also be sent to the OMC.
If monitored via a modem automatic dialling will generate a summary alarm message. The
operator can acknowledge the alarm message by a simple ring back and after that he is able to
request a detailed status report.
The following list comprises all available alarms in the Repeater. These alarms may occur in
the STATUS HIST list.
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NO.
(7)
10
11
12
(13*)
(14*)
(15*)
(16*)
(17**)
**
(...)
ALARM NAME
AMPLIFIER BIAS
POWER SUPPLY 8 V
POWER SUPPLY 12 V
MAINS
SYNTH
DOOR
VSWR
ALC
LITHIUM BATTERY VOLTAGE
OVERTEMP
INVALID LOGIN ATTEMPT
I2C BUS
EXT. ALARM 1
EXT. ALARM 2
EXT. ALARM 3
EXT. ALARM 4
EXT. BATTERY
ALARM ACTIVE STATUS
FAILURE
FAILURE
FAILURE
FAILURE
FAILURE
OPEN
ALARM
FAILURE
LOW
FAILURE
FAILURE
FAILURE
FAILURE
FAILURE
OVERTEMP.
Alarm default settings changeable by software instruction SET ALIAS.
This alarm may be activated together with the external alarms, for instance UPS
temperature
Optional alarms
table 3-4 List of all available alarms
3.4.1 Handling of alarms
As soon as the software recognizes a valid alarm, a message is transmitted to the terminal.
In remote mode via modem, the first of two stored telephone numbers will be dialled. In case
a connection cannot be established the second telephone number will be dialled. If this should
be unsuccessful as well, the call will be repeated after a pre-set delay. The delay time can be
set by software.
If the connection can be established the alarm message will be sent including date, time and
Repeater Id.-number.
In remote mode the alarm can be acknowledged by simply ringing back and typing
ALARMACKN.
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If the reason for the alarm has been cleared or if the alarm should continue, a new alarm
message will not be repeated. If there was an interruption of at least one second after
acknowledgement, a new alarm message will be generated.
3.4.2 Status report
Two instructions enable the operator to gain knowledge of the system status. Typing the GET
command will be responded by a listing of all settings of the Repeater. STATUS will be
responded by a listing of all individual status information.
An examples is listed below for a GET1* (REP1009V1.xx) and STATUS report. The listing
contains random data to demonstrate in which way these messages appear.
*: Due to the fact that the report is very long, the GET report can be split in two parts. You have to type GET1 to
see the first and GET2 to see the second part.
The complete listing of the dialogue language with the processor of the control module
including the instructions to and the messages from the system is available as a separate
manual.
figure 3-5 Example of a GET1 report
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figure 3-6 Example of a STATUS report
3.4.3 Severity levels
This parameter defines five severity levels for an alarm and can be set in the alarm mask
(detailed description in the software manual). The severity levels indicate how the capability
of the managed object has been affected.
The levels are described below and are ordered from most severe to least severe:
- Critical:
The critical severity level indicates that a service affecting condition has
occurred and an immediate corrective action is required to restore the
capability of the managed object.
- Major:
The major severity level indicates that a service affecting condition has
developed and an urgent corrective action is required. Such a severity can be
reported, for example, when there is a severe degradation in the capability of
the managed object and its full capability must be restored.
- Minor:
The minor severity level indicates the existence of a non-service affecting fault
condition and that corrective actions should be taken in order to prevent a more
serious failure. Such a severity can be reported, for example, when the detected
alarm condition is not currently degrading the capability of the managed object.
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- Warning:
The warning severity level indicates the detection of a potential or impending
service affecting failure before any significant effect has been caused. Action
should be taken to further diagnose and correction of the problem shall prevent
a more serious service affecting failure.
- Disable:
The disable severity level indicates that the detected failure has no influence on
the system and shall not be sent to the terminal.
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4 Optional equipment
The following modules can be integrated as an option.
4.1 VSWR module
VSWR signal is continually measured by a special VSWR module. An alarm can be given for
VSWR < 10 dB.
4.2 External alarms
With the following option it is possible to monitor 4 external alarms via the Repeater
software. Hence the status of the connected device, e.g. UPS, can be monitored.
The contacts of the alarms can be accessed at clamps on the main board (right side of the
Repeater).
figure 4-1 Clamps for external alarms
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The electrical connection has to be as follows.
External alarm 1 (low active)
External alarm 2 (low acitve)
External alarm 3 (high active)
External alarm 4 (high active)
Ground
Configuration: 5 V / 0.5 mA max. for open collector applications.
All external alarms are normally high without connection. Due to the fact that the external
alarms 3 and 4 are high active, they have to be connected to ground to prevent an alarm
message.
The factory-set response after typing the software command STATUS EXTALARM is for
instance „EXT. ALARM 1 OK“, if the alarm is not active and „EXT. ALARM 1 FAILURE“,
if the alarm is active.
The name for each external alarm and the name for the alarm message can be defined by the
customer with the corresponding software command.
The following example describes the response for the external alarms to control a UPS.
Example:
External alarms if the UPS is active
EXTERNAL ALARM STATUS
UPS alarm active
Battery low !
UPS door open
Battery door open
or
External alarms if the UPS is not active
EXTERNAL ALARM STATUS
UPS not active
Battery OK
UPS door closed
Battery door closed
For the DC wiring an additional cable bridge has to be installed on the control module (see
figure 4-2 Cable configuration and installation position).
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Control module
figure 4-2 Cable configuration and installation position
4.3 Modem
The Repeater can be equipped with a modem for the operation of the Repeater via modem
connection. This allows the operator to change settings and querry information of the
Repeater remotly.
See chapter 5.5 External RF output and chapter 7.2.3 Settings via modem for further
information about the opional modem.
4.4 Battery backup module
If backup is required only for the control module and the modem, low capacity batteries are
available to operate controller and modem for at least ten minutes under normal
environmental conditions.
Battery backup is provided for the control module to transmit alarm information in case of
power failure. The battery type is a NiCd 8.4V/300 mAh. The battery backup is sufficient
enough to support multiple dial out attempts via modem in case of ‘system engaged’ or other
communication problems for at least ten minutes under normal environmental conditions.
F Note:
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The batteries are protected from deep discharge by use of a low voltage disconnect circuit. A
local switch is provided to disconnect the battery backup system during maintenance to ensure
that all circuits are voltage-free.
The switch is located on the battery backup module.
Switch
ON ( default )
OFF
Battery backup active Battery backup not active
The module is directly plugged into the control module. During the charging process a green
LED V7 on the module indicates, that the battery is charged at the moment. After finishing
the process the LED V7 will be switched off.
The batteries are mounted underneath the modem mounting plate (see following figure).
figure 4-3 Mounting position of batteries
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5 Specification
5.1 Electrical specification
Frequency range
Uplink 824-849 MHz; Downlink 869-894 MHz
Useable bandwidth
25 MHz in the upper or lower AMPS 800 band
Gain
90 dB
Gain variation over
frequency and temperature*
±2.5 dB (±3.5 dB at extreme temperatures)
Gain adjust range
30 dB in 2 dB steps
Gain adjust range tolerance
±0.5 dB
Return loss
15 dB @ 25°C ambient temperature
Spurious/intermodulation
-13 dBm max
Spectral re-growth (CDMA only)
-45 dBc (J-STD-008)
Power supply
115 VAC ± 15% / 40 - 65 Hz
Option: 230 VAC ± 15% / 40 - 65 Hz
Option: 185 - 320 VAC / 40 - 65 Hz
Option: 24 VDC
Option: 42 to 60 VDC
RF connector
7/16 female
Option: N female
Environmental and safety
See separate leaflet
*: Normal temperature range +5° to +40°C; Extreme temperature range -33° to +50°C
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BAND AND CHANNEL SPECIFICATIONS
Variable Bandwidth
Channel
CDMA
TDMA
3 dB bandwidth
0.1 to 15.0 MHz
1.23 MHz
30 kHz
Slope 3 dB to 30 dB
2 MHz
30 dB bandwith
fc ± 900 kHz
fc ± 60 kHz
50 dB bandwith
fc ± 1.5 MHz
fc ± 120 kHz
Delay
6 µs
< 6 µs
20 µs
Delay variation (typical)
±150 ns
±500 ns
±500 ns
Far off selectivity
40 dB
60 dB
55 dB
NF at Gmax
8 dB
6 dB
6 dB
NF at Gmax-30 dB
13 dB
12 dB
12 dB
OICP-3 at Gmax
59.0 dBm
59.0 dBm
59.0 dBm
OICP-3 at Gmax -10 dB
58.5 dBm
58.5 dBm
59.0 dBm
OICP-3 at Gmax -20 dB
57.5 dBm
58.0 dBm
58.5 dBm
OICP-3 at Gmax -30 dB
53.0 dBm
55.0 dBm
57.0 dBm
-76 dBm/Hz
-96 dBm/Hz
Power consumtion
(standby/max power)
1 module (typ.cons)
145/220 W
130/210 W
130/210 W
4 modules (typ.cons)
180/270 W
160/240 W
160/240 W
Output noise
in band at Gmax
Output noise out of band
at Gmax
All data is subject to change without notice !
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5.2 Mechanical specification
Standard cabinet
Max. Height x Width x Depth:
21.1 x 18.2 x 7.9 inches
535 x 462.5 x 200 mm
Volume:
approximately 45 litres
Weight:
approximately 103 lbs (47 kg per unit in standard
configuration)
The illustration of chapter 11.1 provides the dimensions and the view of the layout.
5.3 Environmental and safety
For detailed information refer to the environmental and safety specification leaflet for
MIKOM indoor / outdoor cell enhancers, related to ETS 300019 (European Telecommunication Standard).
Operating temperature (normal temperature range):
(extreme temperature range):
+ 5° C ... + 40° C
- 33° C ... + 50° C
Humidity:
+ 30° C/ 93 %
5.4 External electrical interfaces
5.4.1 Electrical power
The Repeater MR801B Power can be supplied with the following power supplies (mains):
•
115 Vac ± 15% 40 - 65 Hz
•
230 V ac ± 15% 40 - 65 Hz
•
185 - 320 Vac 40 - 65 Hz
•
24 Vdc
•
±42 to ±60 Vdc
•
±80 to ±130 Vdc
A firmly installed mains cable 3x1.5 mm² is used, which is fed into the housing through a
watertight cable gland. Due to safety reasons the power supply lead has to be protected by two
8 A fuses. Inside the Repeater, mains are connected to a screw terminal.
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See figure 5-1 Screw terminal for mains cable for the position of the two 8 A fuses.
figure 5-1 Screw terminal for mains cable
5.4.2 RF connections
There are two 7/16 female antenna connectors at the outside of the housing accessible on the
connector panel (see figure 5-2 Connector panel layout).
figure 5-2 Connector panel layout
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The 7/16 TX-downlink connector should be connected to the antenna system for the
communication with the mobile units.
Mobile
The 7/16 TX-uplink connector should be connected to the antenna system for the
communication with the Base Transceiver Station.
BTS
As an option a 7/16 - N adapter is available.
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5.5 External RF output
An external output in the downlink path is available at the outside of the housing as an option.
This enables the connection of an integrated modem to an additional antenna. The connector
type is N female.
External RF output
figure 5-3 Position of external RF output
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6 Installation
TX Downlink
RX Uplink
TX Uplink
RX Downlink
to/from
Mobile Stations
to/from
BTS
Repeater System
TX Downlink
RX Uplink
TX Uplink
RX Downlink
Mobile
BTS
figure 6-1 System description
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6.1 Mechanical installation
Note:
Due to power dissipation the Repeater may heat up the air volume inside
the cabinet and reach a very high temperature. Therefore it is necessary to mount the
Repeater in the vertical plane to a wall or a mast without additional enclosure to provide
sufficient ventilation. Between the housing and the wall a minimum distance must be
kept in order to provide air circulation.
The Repeater must be mounted in the vertical
plane to a wall or a mast, which means the
connectors have to be located at the bottom.
Use the mounting brackets, which are part of the
delivery. This will guarantee a minimum
distance between the wall and the Repeater
housing. The cabinet must be fixed to the wall
(brackets) with four screws.
Check the correspondence of the wall mounting
kit and the wall.
F Note:
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The weight of the MR801B Power is approximately 47 kg in standard
configuration.
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Mounting procedure:
Dismount the mounting brackets first. They are screwed tight to the housing with four socket
head cap screws M8.0x16 (see figure below) and two tire bolts.
mounting brackets
figure 6-2 Wall mounting brackets
Use the wall mounting sheet to mark the position of the drilling holes. Drill 4 holes and screw
the mounting brackets to the wall. Attach the upper two socket head cap screws M8.0x16 to
the Repeater housing. Now it is possible to hang the Repeater into the mounting brackets. Fix
then the lower two socket head cap screws M8.0x16 and the 2 tire bolts.
F Note:
The unit is heavy-weight. Make sure that a suitable mounting surface is
used. Only adequate manpower is allowed to handle the system.
The installation position of the Repeater follows from the installation drawing see figure 11-1
Installation drawing of the Repeater. Make sure that there is free access to the electrical
connections. The allowed bending radius of the connected cables must not be exceeded.
Furthermore the Repeater shall be mounted in a way that there is free access to the individual
units inside the cabinet, while the door of the Repeater is open.
Therefore keep a clearance distance of 1 m on each side and 2 m below the unit.
See following figure 6-3 Clearance distance.
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figure 6-3 Clearance distance
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6.2 Electrical installation
FNote:
ESD precautions have to be observed! Before working inside the cabinet
use the available grounding system to connect ESD protection measures.
The electrical installation has to be performed in accordance with the
safety regulations of the local authorities. Due to safety reasons the
electrical installation must be performed by qualified personnel. The
cover of this unit should not be opened while power is applied.
Subsequent installation, commissioning and maintenance activities that
require the unit to be powered with the cover open shall only be carried
out by suitably qualified personnel
6.2.1 Grounding
Grounding has to be performed by all means. Therefore a grounding bolt is provided at the
cabinet. An earth bonding cable will be mounted in the factory and will be delivered with the
unit. Don’t use the grounding screw for connecting external devices.
The complete grounding kit is part of the delivery schedule, see figure 6-4 Grounding kit.
figure 6-4 Grounding kit
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6.2.2 Power connection
Before connecting electrical power to the Repeater grounding has to be performed. The
Repeater is equipped with a firmly connected power cord 3 x 1.5 mm². Due to safety reasons
the power supply lead of the Repeater has to be protected with two 8 A fuses, type MT. In the
event the length of the power cord should not be sufficient it can be replaced by a longer
cable.
figure 6-5 Screw terminal
F Note:
If the power supply lead has to be replaced use a cable of the same quality.
6.2.3 Connection of the antenna cables
The Repeater has two female antenna connectors 7/16. For mounting the corresponding cable
connectors we recommend to refer to the applicable documentation of the respective
connector manufacturer. The bending radius of the antenna cables must remain within its
specification. This will warrant proper operation of the system; otherwise changes in the
electrical behaviour of the cable might occur which could cause malfunction of the Repeater
system.
F Note:
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It is sufficient to fix the 7/16 antenna connectors hand-screwed.
Any use of a tool (like tongs) might cause damage to the connectors and
thus lead to malfunctioning of the Repeater.
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7 Setting to work
7.1 Preparation
F Note:
It is not allowed to operate the Repeater without termination of the
antenna connections! The termination can be performed by the antenna
connection as well as a dummy load or the 50-Ohm-terminated connection
of a measuring instrument.
Before bringing the Repeater system into service it is necessary to measure the antenna
isolation. The Repeater system has its maximum available gain when the attenuation is set to
zero. On site the maximum allowed gain is 15 dB less than the value of the antenna isolation.
In order to check the function of the Repeater system on site it is advisable to operate the
Repeater system with 50 Ohm termination. This makes it possible to set the necessary gain
and to test the set value without the necessity of transmitting on air.
In order to perform settings the Repeater has to be opened. Please, ensure not to damage the
seals, which are on the modules situated on the RF modules inside of the Repeater, because
this would lead to risk the success of warranty claims.
After taking the Repeater into service following signals occur during the boot process.
Internal
LED L1
green
red
Flashes
red short
time
Internal
LED L2
green
red
Flashes red
short time
Internal
LED L3
green
Cause
Power on state,
Software boot starts
Software boot starts
Software is running
table 7-1 LED indication
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7.2 Setting of operational parameters
Attenuation of the Repeater can be set manually by means of rotary switches, frequency can
be set locally or remotely.
There are three different possibilities to set the operational parameters:
-manual settings by means of rotary switches
-local control via RS232 interface and PC
-remote control via modem
7.2.1 Manual settings by means of rotary switches
The manual mode allows the user to set the required channels and attenuation by means of
rotary switches. With a small screwdriver, which fits through the long holes of the RF
modules, the values can be adjusted by turning the switch carefully to the desired position.
F Note:
To enable manual settings of parameters the mode switch (DIP-Switch 1)
has to be changed from OFF to ON.
The DIP-Switch is mounted on the control module, located on the left side of the Repeater.
DIP-Switch 1
figure 7-2 Position of the DIP-Switch 1
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7.2.1.1 Setting of the attenuation
The gain can be set by introducing attenuation into the amplifier chain. By using a rotary
switch the attenuation can be adjusted locally in the range from 0 dB to 30 dB maximum in
steps of 2 dB. The attenuation can be set for the UL and DL path separately.
The rotary switches are mounted on the mother board. These switches are accessible through
the long hole between the two RF modules ( see figure 7-3 Position of the rotary switches).
They can be adjusted easily by means of a small screwdriver.
long hole
figure 7-3 Position of the rotary switches
A label on the RF module, located next to the rotary switch, illustrates the usage of the rotary
switch (see figure 7-4 Rotary switches and label).
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figure 7-4 Rotary switches and label
F Note:
Gain can be changed independently for the uplink and downlink path.
DIP-Switch configuration:
DIP-Switch
ON
manual
remote mode
n.c.
software download
manually controlled
OFF (default values)
auto
local mode
n.c.
software download
controlled by software
table 7-5 DIP-switch configuration
7.2.2 Settings via personal computer as terminal
Instead of manually setting operational parameters via rotary switches it is also possible to use
the functions of the control module. The local mode for settings via PC has to be set.
Therefore the DIP-Switch 2 has to be at position OFF.
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DIP-Switch 2
figure 7-6 DIP-switch 2 for local mode
A VT100 terminal or a PC with VT100 emulation can be connected to the control module
SM2009 by a standard RS232 cable, if necessary in connection with an adapter 9 to 25.
Cable Connections PC
9 contact SUB - D- Connector
male
PC
PIN
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Control Module SM2009
9 contact SUB - D- Connector
male
RS 232
MR801B Power
PIN
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The following communication mode between control module and VT100 is set initially.
9600 baud - 8 bit - no parity -1 stopbit
These settings can only be changed after connection of the terminal. If all wanted settings
have been initialized and a modem has to be used it will be recommended to check whether
the settings comply with the capabilities of the modem and the line. Modifications are
possible by software commands.
F Note:
Settings on the Repeater can be performed after the following procedure
only.
After connecting the PC to the Repeater, following procedure is necessary to get access to the
program.
MIKOM REPEATER MR801B - SM2009 - SW: REP1007V1.11
ENTER <.>  TO LOGIN
1. Step:
Type the two keys ( . ) FULLSTOP and (↵) ENTER
You have to type the keys:
2. Step:
ENTER PASSWORD
You have to enter:
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UserID1 ↵
The input is case sensitive, no blanks. After three mistrial follows
disconnection.
3. Step:
F Note:
↵
ENTER USER ID
You have to enter:
F Note:
P-word1 ↵
The input is case sensitive, no blanks. After three mistrials follows
disconnection.
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7.2.3 Settings via modem
The Repeater can be equipped with a modem. If so, the repeater will be delivered with a
preset init string. This init string was used for internal tests. In case no connection can be
established check the local conditions and change the init string if necessary.
The following list contains the description of the AT commands:
&F
Sets modem to factory configuration
E0
Echo OFF
S0=1
Auto answer ON; the GSM module / M1 modem goes offhook after the first ringing signal.
S7=60
Waiting time for connection after dialing; permissible values
are from 0 ... 60.
B13
Setting to 9600 bps asynchronous mode
\ N6
Auto reliable operation
\ N0
Standard operation, no error correction
+CBST=7,0,1
Set bearer service type to 9600 bps. Non-transparent
connection (uses RLP)
X3
Not waiting for dial tone; usually used at PABX.
*P1
Switch ON phone
&K4
Enables XON / XOFF flow control
table 7-7 List of AT commands
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8 Trouble shooting
All Repeaters are factory-set to „Power down disabled“ status, this means the channel group
is active. To switch off the channel group use the software command „PWRDOWN enabled“.
(You find a detailed description in the software manual.)
8.1 Error indication
l = LED on
- = LED off
Internal
LED L1
green
red
Internal
LED L2
green
red
Internal
LED L3
green
Cause
No power.
Check presence of power at
the input; replace fuse
according to chapter 9.3,
check battery backup module
Indicates a
summary failure
8.2 Boot process
Following signals occur during boot process.
Internal
LED L1
green
red
Internal
LED L2
green
red
Internal
LED L3
green
Flashes red
short time
Flashes red
short time
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Cause
Power on state, Software boot
starts
Software boot starts
Software is running
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8.3 Alarm monitoring with the STATUS HIST command
Check alarms with ‘status hist‘ command.
1. If a hardware module is damaged, replace corresponding hardware module.
2. Minor alarms with no influence on the system can be cancelled by confirming the alarm
with the ‘alarmackn’ command, e.g., ALC active, VSWR, RSSI or DOOR OPEN.
3. If all alarms have been acknowledged the summary error LEDs will be set back to green
indication.
4. In case of mains power failure the contents of the actual STATUS HIST list is lost.
For a complete list of available alarms, see table 3-4 List of all available alarms
8.4 Power supply
The output voltage is factory set and should not be changed.
8.5 General remarks
• After a software download previous user settings ( data default values ) might be
overwritten. Before you start a software download save the set values for:
centre frequency
attenuation
ALC threshold
• If an ALC or AMPBIAS alarm occurs during installation or commissioning an user error
might be the cause, due to wrong measurements.
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9 Maintenance
9.1 General
F Note:
The Repeater does not require preventative maintenance measures.
It is only recommended to replace the RAM/RTC
battery after three years usage as a prophylactic
measure. The nominal lifetime of these batteries is
five years under normal environmental conditions.
In the event of a malfunction it is advantageous to
check the status of the antenna systems as well as
the continuity of the entire cabling including
connectors, before replacing the modules.
Maintenance on the Repeater shall be performed
only by replacing modules. Soldering on printed
circuit boards shall be avoided. In order to sustain
warranty take care not to damage unintentionally
the seals on the modules.
The spare part list, consequently, contains only
units, which can be replaced without tuning or
complex soldering work.
figure 9-1 Top view of the Repeater
F Note:
Defect parts should only be replaced by original parts from MIKOM.
All interventions inside the housing are at one’s own risk.
During maintenance ensure that the Repeater has been disconnected from
mains.
Open the lock at the connector panel and remove the cover plate. To open the housing use a
Torx key and unscrew the four Torx screws.
9.2 Replacement of the fuses (mains)
The mains cable is protected with two fuses F1 and F2 8A type MT. They are accessible
inside of the Repeater at the fuse terminal on the right side. Open the screw plug for the fuse
and take out the fuse.
F Note:
Use only fuses of the same type and the same rating when replacing!
See figure 9-2 Fuse terminal for position of the 8A fuses.
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figure 9-2 Fuse terminal
9.3 Replacement of the power supply fuse
Each power supply is protected with a fuse 10 A / 35 V. The fuse is mounted outside of the
power supply housing.
F Note:
Use only fuses of the same type and the same rating when replacing!
figure 9-3 Position of power supply fuse
9.4 Replacement of the mains cable
The Repeater will be delivered with a firmly connected mains cable.
In case the length of the delivered mains cable should not be sufficient or in case of a defect,
the mains cable can be replaced.
F Note:
Disconnect Repeater from mains first.
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Remove the clamping profile at the outside of the housing
by pulling at the mains cable. Open the PG9 threaded joint
with a spanner size 17. Inside the housing remove the
plastic cable clip by unscrewing the tallow-drop screw.
Then use a small screwdriver and open the screws of the
fuse terminal.
Now the mains cable
can be removed by
pulling at the cable. For the installation of a new cable
strip the isolation of a new cable to the length of 18 cm.
Put the screw of the cable gland over the cable then use
the joint rubber and pull it over the cable. This will
guarantee a tight connection. Now insert the cable.
Inside the housing pull an insulated tube with the length
of 8 cm over the wires. Now close the PG9 threaded
joint. Screw the wires to the fuse terminal. Fix the cable
with the plastic cable clip.
Put the cable in the guide shaft and close it with the clamping profile.
9.5 Replacement of the RAM / RTC battery
The RAM / RTC battery of the control module has to be replaced in case of memory loss or
as a preventive measure after approximately three years usage. The RAM / RTC battery is
mounted on the left-hand side of the Repeater underneath the dummy battery backup module
First remove the whole dummy battery backup module ( see figure 9-5 Position of dummy
battery backup module ), which is plugged into the control module. Take off the Lithium
battery by means of a small screwdriver, placed between the battery and the battery socket.
The type of the battery is CR 2450 Lithium 3 V / 500mAh, manufacturer is RENATA.
After replacement of the RAM battery, the control module has its basic settings, date and time
have to be set to the actual value.
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dummy battery backup module
RAM/RTC battery
figure 9-4 Position of RAM/RTC battery
F Note:
Before replacing the battery, disconnect the Repeater from mains.
Observe the rules for changing Lithium batteries. Wrong connection or
treatment may result in bursting of the battery and dissemination of
hazardous substances.
Don’t try to charge this battery.
9.6 Replacement of the dummy battery backup module
The dummy battery backup module is accessible after opening the housing on the left-hand
side. (If a modem is implemented, you have to disconnect the cable from the modem which is
connected with the battery backup module.)
Before you are able to remove the module from the socket, release the three snap-in lockings.
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dummy battery backup module
figure 9-5 Position of dummy battery backup module
9.7 Replacement of duplexers
This description is valid for the one channel configuration of the Repeater only. For different
configurations refer to the assembly guide for the Repeater.
Remove the semi-rigid cables which connect the UL output and the DL output with the feed
forward amplifier by loosing the SMA connectors. Use a torque wrench. Then remove the
semi-rigid cables from the RF modules. (BTS side marked with a red spot).
It is recommended not to remove the amplifier which is mounted on the backside of the
duplexer. A new duplexer will be delivered with a premounted amplifier.
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The cables have to be connected like shown below.
figure 9-6 Cable configuration of the duplexers
Unscrew the four counter sunk screws M3 at the connector panel of the Repeater. See figure
9-7 Connector panel layout.
figure 9-7 Connector panel layout
9.8 Replacement of RF modules
To remove the RF modules, disconnect the SMA connectors by means of a torque wrench.
If the Repeater is equipped with TDMA modules, the external filter on top of the modules
must be dismounted beforehands. The external filter box covers two of the socket head cap
screws the TDMA module is fixed with.
Unscrew the socket head cap screw on top of the external filter box, pull the box carefully off
and continue the dismounting procedure like described below.
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Unscrew six socket head cap screws by means of a hex socket key.
Pull carefully by means of the mounting strap, fixed on the module (see figure 9-8 Top view
of an RF module) and take off the modules.
Socket head cap
screws
Mounting
strap *
*: TDMA and CDMA modules are equipped with mounting straps on the left and on the right side.
figure 9-8 Top view of an RF module
Connecting the RF modules depends on the number of channels your Repeater is equipped
with, i.e. with one up to four channels. Each configuration has got a different cabling. See
assembly guide of the channel modification kits for the cabling and functional description of
the RF modules dependent on the configuration of the Repeater.
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For the exchange of an RF module
or the installation of a new RF
module, the slave address of the synthesizer
has to be set. This can be done by means
of hex-coded rotary switches mounted
on the lower side of the modules
(figure 9-9 Position of hex coded rotary switches).
Hex-coded rotary switch
for DL
Hex-coded rotary switch
for UL
figure 9-9 Position of hex
coded rotary switches
The synthesizer address must be set like shown in the following table:
Address
UL
DL
RF module
Channel one
Channel two
Channel three
Channel four
table 9-10 Address of synthesizer
Instructions for band selective modules with variable bandwith can be found in a seperate
document.
9.9 Replacement of the control module SM 2009
The control module is a Printed Circuit Board situated on the left-hand side of the Repeater.
Disconnect the DC cable from power supply.
Disconnect the flat cable.
Remove the battery backup module and remove the Tyrap which is fixed to the control
module.
Disconnect the RS232 cable from the M1 modem if the Repeater is equipped with a modem.
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Take off the whole control module completely with mounting plate by unscrewing four tallow
drop screws M4.
For mounting proceed in reverse order.
Position of the control module in the Repeater is illustrated in figure 9-11 Position of control
module.
figure 9-11 Position of control module
9.10 Replacement of power supplies
F Note:
Ensure that mains are disconnected.
There are four power supplies mounted in the Repeater housing, two on each side. Open the
Repeater to get access to the devices.
Remove all connected cables from the clamps of the power supply. Try to loose the plug by
means of a small screwdriver placed between the plug and socket.
ON
Fuse 10A / 35V
figure 9-12 Power supply
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The power supply is fixed to the Repeater housing by means of two special nuts M4. After
loosen the screws the power supply can be removed. To open these screws a special key with
a spherical head is required. Place a small screwdriver between the Repeater housing and the
power supply to loose the device.
figure 9-13 Position of special-nut M4
F Note:
Don’t forget to put heat conducting paste on the mounting side for
installation of a new power supply. Use the conducting paste, which is
included in the spare parts kit.
9.11 Replacement of active combiner modules
The active combiner modules are mounted on both sides of the Repeater.
Disconnect all SMA connectors by means of a torque wrench.
Unscrew two counter sunk screws M3x20mm. See figure 9-14 Position of counter sunk
screws on active combiner
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counter
sunk
screws
figure 9-14 Position of counter sunk screws on active combiner
The cabling of the active combiners depends on the configuration of the Repeater. For correct
connections see assembly guide for the channel modification kits
9.12 Replacement of feed forward amplifiers
There is one amplifier mounted on each side of the Repeater. They are fixed to the housing by
means of 6 socket head cap screws M4x25.
A special reset board is connected to the 15 pole SUB-D connector. (See figure 9-15 Position
of the feed forward amplifier reset board)
This reset board is part of the feed forward amplifier. A new feed forward amplifier will be
delivered with a premounted reset board.
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Reset board
figure 9-15 Position of the feed forward amplifier reset board
Remove the ready made cable which is plugged to the 15 pole SUB-D connector of the reset
board. Unscrew the screw clip first.
The SMA connectors can be removed only after dismounting the amplifier.
Position of the feed forward amplifiers are illustrated in figure 9-16 Position of feed forward
amplifiers (4-channel Repeater)
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figure 9-16 Position of feed forward amplifiers (4-channel Repeater)
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10 Spare parts list
The following list contains all parts available for the MR801B Power . The configuration of
the delivered unit meets the requirements of the customer and can differ depending on the
state of delivery.
Designation
Id.-No.
Assembly drawing
Assembly drawing RF - cable plan
Mounting material
Basic Module TDMA
Extension Module TDMA
Basic Module CDMA
Extension Module CDMA
Basic Module var. BW
Extension Mod. var. BW
PCS-Duplexer DL Input 824.04 - 848.97 MHz *
PCS-Duplexer UL Input 824.04 - 848.97 MHz *
Feedforward Amplifier 824 - 849 MHz
Feedforward Amplifier 869 - 894 MHz
Power Supply 230 Vac ±15% 14 - 65 Hz Ger plug
Power Supply 230 Vac ±15% 14 - 65 Hz UK plug
Power Supply 230 Vac ±15% 14 - 65 Hz no plug
Power Supply 24Vdc no plug
Power Supply 185 - 320 Vac 40 - 65 Hz no plug
Power Supply 115 Vac ±15% 40 - 65 Hz USA plug
Power Supply ±42 - ±60 Vdc no plug
Power Supply ±80 - ±130 Vdc no plug
SW MOB100 V1.10
Control Unit SM2009
SW REP1007 V1.12
SW REP1009 V1.04
Manual REP1007 V1.11
Manual REP1009 V1.xx
Dummy Battery Backup Module
Battery Backup Module
Sparepart Kit
Wall mounting Kit
Main Board 26V version
Main Board 26V version
Active Combiner DL 869 - 894 MHz
Active Combiner UL 824 - 849 MHz
Termination Resistor
Ready-made cable AC
149952
150563
150521
148712
148710
148713
148709
148715
148944
148333
148334
148629
148630
138305
142832
144306
145504
148812
141230
144946
145524
143055
143051
145488
147127
145956
148964
143750
143052
146200
146179
149778
149777
148687
148688
33167
143606
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Ready-made cable DC
Ready-made cable DC female headers 6 contacts
4 External Alarms option Kit
Adapter 7/16 male N female
RF Gland / SMA to N
Mother board
Manual for MR801B Power
Assembly guide for modification kits
Modification Kit for one channel
Modification Kit for two channels
Modification Kit for three channels
Modification Kit for four channels
149648
150753
147710
112425
150615
147024
151111
151045
149917
149918
150529
149920
*: Duplexers are labeled refering to the UL frequency
table 10-1 Spare parts list
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11 Appendix
11.1 Installation drawing of the Repeater
figure 11-1 Installation drawing of the Repeater
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11.2 Top view of the Repeater (left side , one channel configuration)
figure 11-2 Top view of the Repeater (left side, one channel configuration)
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11.3 Top view of the Repeater (right side, one channel configuration)
figure 11-3 Top view of the Repeater (right side, one channel configuration)
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11.4 One channel configuration – cabling and block diagram
figure 11-4 Cabling of one channel Repeater
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figure 11-5 Block diagram of one channel Repeater
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12 Index
Abbreviations 8
Active combiner 20, 64
Address of MIKOM 11
Alarm monitoring 54
Alarms
Acknowledgement of 26
External alarms 30
Handling of 26
Indication of 24
List of all alarms 26
ALC 24
Antenna connectors 37, 45
Antenna isolation 46
AT commands 52
Feed forward amplifier 22
Gain
Local settings 23, 48
Setting via PC 49
Grounding 44
Health and safety warnings 10
I²C-Bus 18
Ident numbers 68
Installation
Electrical 45
Mechanical 41
Interfaces 18
RS232 18
International sales offices 12
Battery backup 32
BITE 24
Boot process 53
Channel
Setting via PC 49
Clamping profile 57
Connector types
7/16 female 38
N female 39
Contents of delivery 9
Control module 18
LEDs 24
Local settings 47
Maintenance 55
Measurements of
VSWR signals 30
Modem 51
Mother board 17
Mounting brackets 42
DIP-Switch 49
Dummy battery backup module 58
Duplexer 15, 19, 59
EEPROM 18
Environmental and safety 36
ESD precautions 11
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Optional modules 30
Output DL
external 39
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To set the gain 48
Power supply 21
Replacement of 64
Setting of operational parameters 47
Setting to work 46
Severity levels 28
RAM / RTC battery 57
Remote control 23
RF module 60
Rotary switch
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Test probes 20
Trouble shooting 53
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Modify Date                     : 1999:06:02 09:00:08
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