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Allgon ALR Compact Repeater User Manual

Low power band selective repeater
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User's Manual
ALR Compact Repeater
Future on Demand.
VD203 67/EN - English

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  • Page 1 User’s Manual ALR Compact Repeater Future on Demand. VD203 67/EN - English...
  • Page 2 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...
  • Page 3 ’<Del>’ = 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.

  • Page 4: Table Of Contents

    ALLGON Systems AB ALR Compact Repeater ontents bbreviations ....................... v . Safety ........................1-1 Static Electricity ....................1-2 . Introduction ......................2-1 Repeater Type ....................2-2 Using Repeaters ....................2-3 Shaded Area ....................2-4 Sports Arena ....................2-5 . Installation ........................ 3-1 Siting the Repeater ....................
  • Page 5 ALLGON Systems AB ALR Compact Repeater Board and Unit Descriptions ................5-8 DCC - Directional Coupler for Compact ........... 5-8 DPX - Duplex Filter ..................5-8 BSC Band Selective Compact Board ............5-9 LNA - Low Noise Amplifier ................5-12 PA - Power Amplifier ..................
  • Page 6 ALLGON Systems AB ALR Compact Repeater igures 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 3-1. Repeater dimensions ................3-2 Figure 3-2. Attaching the repeater to a wall ............3-3 Figure 3-3.

  • Page 7: A Bbreviations

    ALLGON Systems AB ALR Compact Repeater bbreviations Abbreviations used in this manual, in the software, and in the repeater: Automatic Gain Control AMPS Advanced Mobile Phone Service BCCH Broadcast Control Channel (GSM broadcast channel time slot) Base Station, BS antenna = towards the base station...

  • Page 8: Safety

    • 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.

  • Page 9: Static Electricity

    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.

  • Page 10: Introduction

    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.

  • Page 11: Repeater Type

    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.

  • Page 12: Using Repeaters

    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.

  • Page 13: Shaded Area

    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.

  • Page 14: Sports Arena

    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.

  • Page 15: Installation

    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.

  • Page 16: Dimensions And Weight

    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.

  • Page 17: Mounting

    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.

  • Page 18: Figure 3-3. Attaching The Bracket To A Pole

    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.

  • Page 19: Figure 3-5. Attaching The Repeater To The Bracket

    ALLGON Systems AB ALR Compact Repeater Installation 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).

  • Page 20: Connection

    ALLGON Systems AB ALR Compact Repeater Installation Connection Mains 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.
  • Page 21 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 - AWM Style 2587 CSA - AWM 1 A/B 11 A/B For outdoor use the power cord should meet at least IP65 encapsulation requirements.
  • Page 22 ALLGON Systems AB ALR Compact Repeater Installation 5. This step is applicable only if the repeater has an RCC unit which is Not used RCC unit: 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.

  • Page 23: Connection Ports And Station Ground

    ALLGON Systems AB ALR Compact Repeater Installation Connection Ports and Station Ground Connectors involved in the installation are described below. Station ground is also detailed below. P120 P112 P119 P113 P130 P118 P124 Figure 3-7. Connection ports and station ground...

  • Page 24: P112 Pc Port

    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).

  • Page 25: P119 Alarm Port

    ALLGON Systems AB 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.

  • Page 26: P120 Door Switch

    ALLGON Systems AB 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,...

  • Page 27: Mains Breakdown Relay

    ALLGON Systems AB 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.

  • Page 28: Commissioning

    ALLGON Systems AB ALR Compact Repeater Commissioning . 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.

  • Page 29: Starting The Repeater

    ALLGON Systems AB 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.

  • Page 30: Indicators

    ALLGON Systems AB ALR Compact Repeater Commissioning Indicators LO HI DATA BOOT FAULT OPER 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. The two upper indicators, R2R and DATA, indicates the following R2R...

  • Page 31: Repeater Configuration

    ALLGON Systems AB 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.

  • Page 32: Functional Description And Design

    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.

  • Page 33: Repeater Design

    ALLGON Systems AB 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.

  • Page 34: The Main Repeater Units

    ALLGON Systems AB ALR Compact Repeater Functional Description The Main Repeater Units Downlink Uplink circuitry circuitry Mobile station Base station antenna antenna 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.

  • Page 35: Block Diagram

    ALLGON Systems AB 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.

  • Page 36: Band Selective Compact Repeater Block Diagram

    ALLGON Systems AB ALR Compact Repeater Functional Description Band Selective Compact Repeater Block Diagram BAND SELECTIVE COMPACT REPEATER BSC - DL P126 P128 antenna antenna BSC - UL Base station P121 P122 Modem P130 Battery P118 P130 BSC - control circuitry...

  • Page 37: Rcc

    ALLGON Systems AB 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.

  • Page 38: Alarm

    ALLGON Systems AB 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.

  • Page 39: Board And Unit Descriptions

    ALLGON Systems AB ALR Compact Repeater Functional Description Board and Unit Descriptions Cabling between boards and units is found on page 5-15 (with RCC unit) 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.

  • Page 40: Bsc Band Selective Compact Board

    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.
  • Page 41 ALLGON Systems AB 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...
  • Page 42 ALLGON Systems AB 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 Connected to Connector type P111 LED board in the cover.

  • Page 43: Lna - Low Noise Amplifier

    ALLGON Systems AB 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.

  • Page 44: Pa - Power Amplifier

    ALLGON Systems AB 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.

  • Page 45: Repeater Software And Hardware Compatibility

    = 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...

  • Page 46: Cabling

    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.

  • Page 47: Compact Repeater Without Rcc Unit

    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 LNA/DL LNA/UL DCC/BS PA/DL PA/UL P128 P121 P111 P115 Figure 5-7.

  • Page 48: R2R, Repeater To Repeater Link

    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.

  • Page 49: Optionals

    ALLGON Systems AB ALR Compact Repeater Optionals . 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.

  • Page 50: Rcc, Remote Communication Control Unit

    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.

  • Page 51: Rcc For Radio Communication

    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. 6 - 3 VD203 67/EN - User’s Manual...

  • Page 52: Omt32, Operation And Maintenance Terminal

    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.

  • Page 53: Repeater Alarms

    ALLGON Systems AB ALR Compact Repeater Repeater Alarms . 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.

  • Page 54: Alarm Reference List

    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).
  • Page 55 ALLGON Systems AB ALR Compact Repeater Repeater Alarms Alarm Text Alarm Unit Alarm Level Description Ceasing 11 Log memory fault Error Log memory fault. Indicates that the log memory on the BSC board is faulty. The repeater will not work. Not available in all BSC software versions.
  • Page 56 ALLGON Systems AB ALR Compact Repeater Repeater Alarms Alarm Text Alarm Unit Alarm Level Description Ceasing 31 No carrier Remote ctrl Not logged or not used. 32 No answer Remote ctrl Not logged or not used. 33 No connection Remote ctrl None No connection at callback.
  • Page 57 ALLGON Systems AB ALR Compact Repeater Repeater Alarms Alarm Text Alarm Unit Alarm Level Description Ceasing 55 R2R queue full None The R2R transmitting queue is full and messages are lost. Suggested remedy: Check the R2R configuration and cables. 56 R2R node lost None An R2R node is lost.

  • Page 58: I Ndex

    ALLGON Systems AB ALR Compact Repeater Index ndex 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 ......................
  • Page 59 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 ....................
  • Page 60 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 ......................

  • Page 61: Q Uestionnaire

    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...
  • Page 62 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. +46 8 540 834 80 If you prefer to send by fax, use this number: Q - 2 VD203 67/EN - User’s Manual...

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