SGC2111 FM Rebroadcast Amplifier User Handbook For System Consulting Group AWL Works Order Q117389 AWL Product Part No. 55-203201 AXELL WIRELESS UK Aerial House Asheridge Road Chesham, Buckinghamshire HP5 2QD, United Kingdom Tel: + 44 (0) 1494 777000 Fax: + 44 (0) 1494 777002 Axell Wireless Limited Technical Literature Document Number 55-203201HBK AXELL WIRELESS SWEDEN Box 7139 174 07 Sundbyberg Sweden Tel: + 46 (0) 8 475 4700 Fax: + 46 (0) 8 475 4799 info@axellwireless.com www.axellwireless.
Table of Contents 1. Introduction ............................................................................................................................. 3 1.1. Scope and Purpose of Document ..................................................................................... 3 1.2. Limitation of Liability Notice............................................................................................... 3 2. Safety Considerations .....................................................................
1. Introduction 1.1. Scope and Purpose of Document This handbook is for use solely with the equipment identified by the Axell Wireless Limited (AWL) Part Number shown on the front cover. It is not to be used with any other equipment unless specifically authorised by AWL. This is a controlled release document and, as such, becomes a part of the Axell Wireless Total Quality Management System. Alterations and modification may therefore only be performed by Axell Wireless.
2. Safety Considerations 2.1. Earthing of Equipment Equipment supplied from the mains must be connected to grounded outlets and earthed in conformity with appropriate local, national and international electricity supply and safety regulations. 2.2.
2.5. Chemical Hazard Beryllium Oxide, also known as Beryllium Monoxide, or Thermalox™, is sometimes used in devices within equipment produced by Axell Wireless Ltd. Beryllium oxide dust can be toxic if inhaled, leading to chronic respiratory problems. It is harmless if ingested or by contact. Products that contain beryllium are load terminations (dummy loads) and some power amplifiers. These products can be identified by a yellow and black “skull and crossbones” danger symbol (shown above).
3. Equipment Overview FM Rebroadcast Amplifier 55-203201 is built into a wall-mounted, environmentally protected (IP65) aluminium alloy case; RF ports and connectors are also IP65 standard making the entire enclosure and connecting ports weatherproof. Handles are provided for carrying the unit and the door is fitted with locks. A supply isolator switch is fitted inside the unit and there are Power On and Alarm indicators on the outside of the door.
3.1. 55-203201 System Schematic Drawing Number 55-203281 Axell Wireless Limited Technical Literature Document Number 55-203201HBK FM Rebroadcast Amplifier 55-203201 Issue No.
3.2. 55-203201 Specification Parameter Downlink Specification Passband Maximum Gain Passband Ripple Gain Adjustment -30dB Coupler Port 1dB Compression Point 3rd Order Intercept Point In-Band Spurious Noise (30kHz BW) General Case Size (ex. handles and heatsinks) Case Material Case Finish AC Supply Voltage 88 to 108 MHz 60dB < ±1.
3.4.
3.5.
4. Installation – General Notes 4.1. General Remarks When this equipment is initially commissioned, please use the equipment set-up record sheet in Appendix B. This will help both the installation personnel and Axell Wireless should these figures be needed for future reference or diagnosis. The procedure for installing and commissioning an Axell Wall Mount Repeater is generally as follows: 1) Secure the Repeater in the chosen wall position.
4.4. Commissioning Once all connections are made the equipment is ready for commissioning. To commission the system the test equipment detailed in Section 5.2. will be required. Using the system diagrams and the end-to-end test specification (supplied with the equipment), the equipment should be tested to ensure correct operation. On initial power up the system alarm indicators on the front door of the equipment should be checked.
5. Maintenance 5.1. Fault Finding 5.1.1. Quick Fault Checklist All Axell equipment is individually tested to specification prior to despatch. Failure of this type of equipment is not common. Experience has shown that a large number of fault conditions relating to tunnel installations result from simple causes often occurring as result of transportation, unpacking and installation.
5.1.3. Downlink Confirm that there is a signal at the expected frequency and strength from the base station. If this is not present then the fault may lay outside the system. To confirm this, inject a downlink frequency signal from a known source at the master site BTS input and check for output at the remote site feeder output. If a signal is not received at the output it will be necessary to follow the downlink path through the system to find a point at which the signal is lost.
5.2. Tools & Test Equipment The minimum tools and test equipment needed to successfully service this Axell Wireless product are as follows:Spectrum analyser Signal Generator Attenuator Test Antenna Optical Power Meter Digital multi-meter Test cable x 2 Test cable x 2 Hand tools 5.3. 100kHz to 2GHz (Dynamic range = 90dB). 30MHz to 2GHz (-120dBm to 0dBm o/p level). 20dB, 10W, DC-2GHz, (N male – N female). Yagi or dipole for operating frequency. 1300 – 1560nM (-40 - +10dB) Universal Volt-Ohm-Amp meter.
5.3.4. Power Amplifier Replacement (general procedure) 1) Remove power to the unit. (Switch off at mains/battery, or remove DC in connector) 2) Remove alarm wires from alarm screw terminal block or disconnect multi-way alarm connector. 3) Carefully disconnect the RF input and output coaxial connectors (usually SMA) If alarm board removal is not required, go to step 5.
5.3.6. Module Transportation: To maintain the operation, performance and reliability of any module it must be stored and transported correctly. Any module not installed in a whole system must be kept in an anti-static bag or container. These bags or containers are normally identified by being pink or black, and are often marked with an ESD label. Any module sent back to Axell Wireless for investigation/repair must be so protected.
Appendix A A.1. Glossary of Terms used in this document Repeater or Cell Enhancer Band Selective Repeater Channel Selective Repeater AC AGC BBU BTS B/W CEMS C/NR DC Downlink (D/L) FO GND ID LCX LED LNA LPA Mobile(s) MOU MTBF N/A N/C (of Relays) N/O (of Relays) OFR OIP3 P1dB PA RF RSA RX S/N TX Uplink (U/L) VSWR WDM Date Format A Radio Frequency (RF) amplifier which can simultaneously amplify and re-broadcast Mobile Station (MS) and Base Transceiver Station (BTS) signals.
A.2. Key to Drawing Symbols used in this document Axell Wireless Limited Technical Literature Document Number 55-203201HBK FM Rebroadcast Amplifier 55-203201 Issue No.
A.3.
A.4. Waste Electrical and Electronic Equipment (WEEE) Notice The Waste Electrical and Electronic Equipment (WEEE) Directive became law in most EU countries during 2005. The directive applies to the disposal of waste electrical and electronic equipment within the member states of the European Union.
A.5. Document Amendment Record Issue No. A Date 16/12/2008 Incorporated by AJS 1 22/12/2008 AJS Axell Wireless Limited Technical Literature Document Number 55-203201HBK Section Amended Reason for new issue Draft Issue FM Rebroadcast Amplifier 55-203201 Issue No.
Appendix B B.1 Initial Equipment Set-Up Calculations General Information Site Name: Client Name: Date: AWL Equip. Model No. Antenna Systems Model Gain Azimuth Comments Type Loss Length Comments A - Service Antenna B – Donor Antenna C – Service Feeder D – Donor Feeder Initial Parameters E – CE Output Power F – Antenna Isolation G – Input signal level from donor BTS Operating Voltage Downlink Calculations Parameter Input signal level (G) CE max.
