User Handbook L-RU Revision C ClearFill®Space1 L-RU (incl. L-RU800-2, L-RUSMR800-2, L-RU700-2, L-RU1900-2, L-RU1721-2) User Handbook Part. No.: L-RU800-2: L-RUSMR800-2: L-RU700-2: L-RU1900-2: L-RU1721-2: 16501014 16501015 16501016 16501017 16501018 Radio Frequency Systems GmbH Kabelkamp 20 D-30179 Hanover (Germany) Tel.: +49 511 676 2731 Fax: +49 511 676 3750 CONFIDENTIAL PROPRIETARY Reg. No.: User Handbook 1100182-C.
User Handbook L-RU Revision C Contents 1 2 3 4 5 GENERAL 4 1.1 IMPRINT 4 1.2 ABBREVIATIONS 5 DESCRIPTION OF CLEARFILL®SPACE1 SYSTEM 6 2.1 9 DESCRIPTION OF REMOTE UNIT 11 3.1 BLOCK SCHEMATICS OF THE REMOTE UNIT 12 3.2 FUNCTIONAL BUILDING BLOCKS OF THE REMOTE UNIT 14 3.2.1 Uplink 14 3.2.2 Downlink 15 3.2.3 Monitoring 15 3.2.4 Function of ALC 15 3.2.5 Duplexer 15 SPECIFICATIONS 16 4.1 ELECTRICAL SPECIFICATIONS 16 4.2 MECHANICAL SPECIFICATIONS 18 4.
User Handbook L-RU 6.3 7 8 Revision C COMMISSIONING PROCEDURE 23 MAINTENANCE, REPAIR AND WARRANTY 24 7.1 INTRODUCTION 24 7.2 ROUTINE CHECKS 24 7.3 REPAIR 24 7.4 TROUBLESHOOTING 25 7.5 WARRANTY 28 NOTES CONFIDENTIAL PROPRIETARY 29 Reg. No.: User Handbook 1100182-C.
User Handbook L-RU Revision C 1 General Thank you for selecting this RFS product. We are confident that you will find this product in proper working order and meeting all stated specifications. Please read this manual. A full understanding of product operation will support optimal performance and prevent accidental damage not covered by the stated warranty. 1.1 Imprint These operating instructions are published by Radio Frequency Systems GmbH Kabelkamp 20 D-30179 Hanover (Germany) Tel.
User Handbook L-RU 1.
User Handbook L-RU Revision C 2 Description of ClearFill®Space1 System When coverage is needed in a large building (typically larger than 200.000 sq ft), RF repeaters driving passive distributed antenna systems (DAS) often become impractical due to their coaxial cable loss. ClearFill®Space1 is offering great value because the signal loss in fiber is extremely low compared to coaxial cable. ClearFill®Space1 can provide excellent coverage over broad areas.
User Handbook L-RU Revision C The RU is a fiber-fed, band-selective single-band RF amplifier. The automatically leveled composite output power (22dBm, equivalent to 2x19dBm for two RF carriers) of a single RU guarantees best coverage at low prices and is able to drive an area of typically 50.000 sq ft. L-RU series Fiber Fed Remote Unit L-RU800-2 L-RUSMR800-2 L-RU700-2 L-RU1900-2 L-RU1721-2 for 50.000 sq ft for 50.000 sq ft for 50.000 sq ft for 50.000 sq ft for 50.
User Handbook L-RU Revision C An example for a system topology is presented in Figure 3. L-RU L-RU Figure 3 – Example of ClearFill®Space1 System Topology Both devices (L-MU and L-RU) include an automatic level control (ALC) in uplink and downlink that eliminates system gain variation, regardless of optical loss guarantying optimised system performance under minimised installation effort. The interface to the BTS / Node B or an Off-Air Repeater is the master unit.
User Handbook L-RU 2.
User Handbook L-RU Revision C Monitoring: Managing the system in case of malfunction is very simple. Two alarm LED easily refer to specific malfunction for the optical link connection and/or for the power supply. Correction of an identified malfunction is done by exchange of faulty unit. Thus makes ClearFill®Space1 a very service-friendly system. LED specification and connectivity (Two type of alarm LED at RU): • • Green illuminated “Main power” LED indicates that the power is ON.
User Handbook L-RU Revision C 3 Description of Remote Unit The medium-power RU is designed for applications in buildings and tunnels. Operating in ALC modus in uplink and downlink the RU provides an easy plug-and-play handling without system leveling. The output power level in downlink is fixed according to ETSI requirements. The monitoring of function is locally indicated by LEDs. The summary alarm switches the pilot tone to the optical Master Unit. The optical transceiver operates on mono-mode fibers.
User Handbook L-RU 3.1 Revision C Block Schematics of the Remote Unit Figure 5 shows the functional block schematic of the remote unit, which basically identifies the main building blocks and their interactions. All external interfaces are clearly identified as arrows crossing the boundary of the remote unit.
User Handbook L-RU Revision C Figure 6: Block schematic of the Remote Unit A detailed block schematic of the RU is shown in Figure 4 indicating the optical transceiver part in red, the monitoring electronic in blue, the PSU in yellow and the RF amplifier block in grey. In downlink, an optical receiver ORx converts the optical input signals from the Optical Master Unit to RF signals. The BP/LP separates RF communications signals from the monitoring pilot tone.
User Handbook L-RU 3.2 Revision C Functional Building Blocks of the Remote Unit A picture of the inner arrangement of the remote unit is shown in Figure 7. Duplexer Optical Module Uplink path Pilot Tone Monitoring PSU RF N- Connector Monitoring LED Downlink path SC/APC Optical IN / OUT Connectors AC Power Cable Earthing Clamp Figure 7: Inner arrangement of the Remote Unit The optical transceiver and the power supply are separate modules.
User Handbook L-RU Revision C The ALC compensates for different uplink input levels per carrier providing optimised UL performance with regard to spurious free dynamic range. 3.2.2 Downlink The downlink path includes a five-stage amplifier with balanced power amplifier, filters and an ALC, which automatically operates the RU according to ETSI requirements. The downlink path is equipped with a monitoring to control the RF-amplifiers.
User Handbook L-RU Revision C 4 Specifications 4.1 Electrical Specifications Frequency range CDMA800 Model no. Uplink Downlink Bandwidth L-RU800-2 824 – 849 MHz 869– 894 MHz 25 MHz Frequency range SMR800 Model no. Uplink Downlink Bandwidth L-RUSMR800-2 806 – 824 MHz 851 – 869 MHz 18 MHz Frequency range Home Land Security Model no. Uplink Downlink Bandwidth L-RU700-2 764 – 776 MHz 794 – 806 MHz 12 MHz Frequency range PCS1900 Model no.
User Handbook L-RU Revision C Composite Output Power in DL 22 dBm typical RF impedance Return loss 50 Ω > 10 dB typical Input voltage AC 115/230 V ±10%, 50/60 Hz ±5%, autoranging Gland with 1.5m cables < 30 W Power consumption ALC operation (UL window at RF in/out port) ALC active: - 55dBm to -35 dBm *) *) target window for plug-and-play mode Linear mode: < -55 dBm Master Unit see User Handbook L-MU series CONFIDENTIAL PROPRIETARY Reg. No.: User Handbook 1100182-C.
User Handbook L-RU 4.2 Mechanical Specifications Size Colour Cooling: Weight: Operating Temperature Range Storage Temperature Range Relative humidity RF Connectors: Earthing: Location of the interfaces and control element Environmental Protection: 4.3 height: 240 mm width: 320 mm depth: 70 mm black (RAL 9005) scratch resistant convection cooling, without fans approx.
User Handbook L-RU Revision C 5 Module Descriptions and Specifications 5.1 Optical Transceiver 5.1.1 Optical Transmitter Wavelength Optical Output Power Modulation gain 1310 nm, single mode 3 dBm typical 0,08 mW/mA 5.1.2 Optical Receiver Wavelength Maximum input power 5.2 1310 nm, single mode 3 dBm optical Power Supply The in-built PSU is a high reliability, wide input range, and high efficient AC-DC converter with four outputs at 5 V, 12 V, -12 V and 24 V.
User Handbook L-RU Revision C 6 Installation and Commissioning 6.1 General Statements 6.1.1 Safety Considerations / Sicherheitshinweise (English / Deutsch) Safety Considerations PTFE and PTFE Composite Materials Materials should never be heated to the point where smoke or fumes are evolved. Any person feeling drowsy after coming into contact with PTFE especially dust or fumes should seek medical attention.
User Handbook L-RU 6.2 Revision C Installation Procedure The installation may only be carried out by qualified personnel that is familiar with the hazards involved and the relevant statutory regulations. Before begin of the installation of the RU, all RF cable and optical cable should be installed first. The procedure for installing the L-RU is generally as follows: 1. Transport the RU to the chosen site in its packaging. 2.
User Handbook L-RU Revision C 7. Ensure that all the cables leaving the RU first travel downward to ensure that any moisture is directed away from the RU. This is important for installation in tunnel environment. Note: It is important that the above installation instructions are followed in the sequence presented to ensure a correct and save installation. Ensure a suitable mains power supply is available adjacent to the RU. Connect the RU main cables to the mains supply in accordance with local wiring.
User Handbook L-RU 6.3 Revision C Commissioning Procedure The ClearFill®Space1 system (consisting of MU and RU) is equipped with a combination of ALCs, minimum one at the input and one at the output. The dynamic range of the individual ALCs and their reaction time is adjusted to each other. At least the whole system ope rates in a balanced way providing defined power levels at the output of the system within the specified power levels at the system inputs.
User Handbook L-RU Revision C 7 Maintenance, Repair and Warranty 7.1 Introduction The RU is designed and built to require no periodic maintenance. As long as the unit is kept away from extreme temperatures and moisture, it should provide long-term, carefree operation. It is strongly recommended that no invasive procedures are performed on the unit in an attempt to verify performance. See section 7.2 for recommended routine performance variation checks. 7.
User Handbook L-RU 7.4 Revision C Troubleshooting You have obtained a state-of-the-art product, which is reliable and operationally safe. Nevertheless, problems or malfunctions may occur. Following we will present strategies how to eliminate possible problems. The safety instructions must be observed (see notes below the table)! Pease follow the procedures for the troubleshooting in the prescribed order. Checklist RU Symptoms Reason Procedure 1. Check the AC voltage The power supply is inac- 2.
User Handbook L-RU Revision C System Checklist The safety instructions must be observed (see notes below the table)! The following troubleshooting refers to specific alarm LED indications on MU and RU in a ClearFill®Space1 system environment. Please follow the procedures for the troubleshooting in the prescribed order. For guidance the column “Symptoms” gives specific LED status information combinations at MU and RU.
User Handbook L-RU Symptoms Reason 1. No optical signal 2. 3. 4. OTRx of MU is inactive • MU Link LED is red / RU Monitoring LED is red 5. Optical cable is inactive 6. 7.
User Handbook L-RU 7.5 Revision C Warranty The Warranty time is 1 year beginning with the delivery of the equipment. Warranty services do not extend the warranty time. The warranty is not valid for the following: • • Damage caused by improper use Damage caused by non-adherence to user handbook • Devices which have been opened provided this is not described in the user handbook for maintenance purposes. • Devices whose serial number labels have been changed, damaged, removed or exchanged.
User Handbook L-RU Revision C 8 Notes CONFIDENTIAL PROPRIETARY Reg. No.: User Handbook 1100182-C.
