Next Generation Signal Enhancement SBR/RF Series OPERATION AND INSTALLATION MANUAL R-20-930 MHz (One Way Paging) (Indoor Coverage) April 2007 Proprietary Information The information contained herein is proprietary to Shyam Telecom Limited. Unauthorized access, copy and replication are prohibited. Use or disclosure of this document or the information contained herein, for any purpose other than that for which it was furnished is not permitted.
Next Generation Signal Enhancement You will feel immense pleasure that you have acquired a world-class RF repeater for augmentation of RF signals for providing quality connectivity to the outside World from your home, office or any other indoor location. This system has been designed to operate on the latest digital mobile communication technology so as to guarantee you enhanced voice clarity each time, every time. It is, as you will soon find yourself, the ultimate in reliability and quality.
Next Generation Signal Enhancement Contents 1.0 2.0 3.0 4.0 5.0 6.0 DISCLAIMER .................................................................................4 About Shyam Telecom.................................................................4 WARRANTY...................................................................................5 SAFETY REQUIREMENTS ...........................................................7 ELECTROSTATIC DISCHARGE (PRECAUTIONS) .....................8 INTRODUCTION ..............
Next Generation Signal Enhancement 1.0 DISCLAIMER Every attempt has been made to incorporate complete and up-to-date information about the equipment in this document but Shyam Telecom reserves the right to make changes without notice as per the requirement and convenience. As such Shyam Telecom shall not be responsible for any damages including consequential, caused by reliance of the contents presented in this document.
Next Generation Signal Enhancement 1. Shyam Telecom Ltd. 246, Phase IV, UDYOG VIHAR, GURGAON – 122015 (INDIA) Tel: +91-124-4311600 FAX: +91-124-4018117 2. Shyam Telecom GmbH. Frohsinnstrasse 16, 63739 Aschaffenburg, Germany Tel: + 49-6021-45901-0 Fax: + 49-6021-45901-29 3. Shyam Telecom Inc. 6, KILMER ROAD, SUIT D, EDISON, New Jersy-08817 (USA) Email: info@shyamtelecom.com 3.
Next Generation Signal Enhancement to uninstalling or reinstalling the product are not covered under this warranty.
Next Generation Signal Enhancement The team from Shyam Telecom shall technically examine the product and on the basis of which the customer shall be intimated about the payment to be levied. Necessary action to repair/replace the unit shall be initiated after the confirmation is received from the customer. Any disputes arising in connection with warranty clauses mentioned above, will be governed by and construed in accordance with the laws of India. The Courts within Delhi will have jurisdiction.
Next Generation Signal Enhancement 5.0 ELECTROSTATIC DISCHARGE (PRECAUTIONS) Different modules located in the equipment make use of semiconductor devices for better performance provided they are operated with proper cautions. The careless handling of such devices should be strictly avoided. While handling the semiconductor devices, grounded wrist straps, grounded workbench surfaces and grounded floor mats should be used.
Next Generation Signal Enhancement 6.0 INTRODUCTION 6.1 Objective The objective of this document is to facilitate the customer to arrange installation, operation and maintenance of the equipment supplied by Shyam Telecom without any complication. This document enumerates all the relevant information regarding R-20-930 (One way paging) repeater. 6.
Next Generation Signal Enhancement 6.3 Conforming To International Standards The repeater systems, designed, manufactured and supplied by Shyam Telecom conform to international technical standards like ETSI and further conform to the entire international safety requirement for installation, operation and maintenance. 6.
Next Generation Signal Enhancement 7.0 R-20-930 (One way paging) Repeater This repeater has been designed to meet the requirement of indoor coverage and is equipped to carry traffic in a single sub band of one MHz bandwidth in the frequency band 929 to 930 MHz. Basically traffic carried in this repeater is for transmitting signals in one direction only what can be termed as DL path. 7.1 Salient Features • • requirement in the frequency band 929 to 930 MHz.
Next Generation Signal Enhancement building shadowing and the available forward signal level at the donor antenna. Typical coverage is usually planned for relatively small areas such as large conference rooms or several adjacent rooms in smaller office areas. Figure 1 shows application of an indoor repeater in a small building.
Next Generation Signal Enhancement Indoor Coverage Figure 2: Typical Application of A Indoor Repeater R-20-930 (One way paging device) Figure 1: Indoor coverage in a small building All Rights Reserved Shyam Telecom Limited Page 13/36
Next Generation Signal Enhancement 7.3 Description R-20-930 (One way paging) Repeater The Repeater system comprises of high power amplifiers with automatic power control and highly selective amplification in the DL direction. It is incorporated with a Donor antenna (highly directive outdoor yagi antenna) and Server antenna (indoor omni directional antenna), specifically designed for interior configurations.
Next Generation Signal Enhancement 7.4 Technical Specification: Repeaters R-20-930 Frequency Bandwidth 929 to 930 MHz Number of Sub-Bands Gain Attenuation Range for power control. (Automatic/manual by GUI or DIP switch) Output power one, the bandwidth of 1 MHz is set as per requirement within the band 70 dB 0-31 dB in steps of 1 dB +19 dBm Composite Spurious Emission <-36dBm @ 9KHz – 1GHz Noise Figure 5dB Max. 1.5 Max. V.S.W.R.
Next Generation Signal Enhancement 8.0 INSTALLATION 8.1 ENGINEERING CONSIDERATION a. SITE SELECTION Site selection affects the overall performance of the system hence it requires prime consideration. The system comprises of a unit, which houses all the modules. The unit is installed at the indoor site and the Donor antenna can have directivity to the BTS from where the signals are proposed to be intercepted.
Next Generation Signal Enhancement • Accessibility for the maintenance team. b. PLACEMENT OF ANTENNAS Antennas are deployed for intercepting signals from the donor site and distributing signals to the mobile users. Proper selection of both DONOR & SERVER antennas is of prime importance. Following points need to be considered: • The antennas should have proper frequency band of operation. • Gain as per requirement for achieving maximum efficiency. • It is 10-12 dB for the DONOR antenna.
Next Generation Signal Enhancement 8.3 Installation Procedure 1. RF coaxial cable installation must comply with local or National Electrical Codes and must be with nominal 50-Ohm impedance. Pull and route the RF coaxial cables as per the site installation plan. 2. Fix the supplied connectors to the RF coaxial cable and verify the following: • The center conductor to outer shield of RF coaxial cable • • indicates an “Open Circuit” condition.
Next Generation Signal Enhancement 3. The UL Align indication LED and DL align indication LEDs will blink for adjusting the DL gain and UL gain automatically. 4. Review the intended coverage area according to the site installation plan. Using a mobile NOKIA handset loaded with NET engineering software and the SIM card of cellular operator, measure and monitor the signal level at various points within and around the perimeter of the coverage area. i.
Next Generation Signal Enhancement 8.5 Configuration & Monitoring Console The repeater system is delivered with software loaded in order to perform configuration as per requirement. It also enables monitoring the status. Configuration of parameters can be carried out locally with the help of laptop / PC connected to the repeater by means of local USB interface. The laptop/PC is to be loaded with CMC software & USB driver software from the CD supplied with the system.
Next Generation Signal Enhancement After successful login a message “Logged in successfully” will be flashed on the screen. Now user can start the operation through CMC. There are two type of user viz. ADMINISTRATOR and SUPERVISOR. If user logged in as an ADMINISTRATOR, all the operation through the CMC can be carried out. Default password is “shyam”. Figure 3: Login Administrator can limit the system access authority of the SUPERVISOR.
Next Generation Signal Enhancement SET : This is for updating the repeater parameters. READ : This is for reading configured parameters from repeater. Figure 4: Repeater ID Setting a) Repeater ID (Figure 4) User can assign a unique repeater ID to each repeater installed. Up to 10 characters are allowed for this field. b) Repeater Location (Figure 4) User can assign the address of location where repeater is installed. Up to 30 characters are allowed for this field.
Next Generation Signal Enhancement e) PA ON/OFF Settings (Figure 7) The PA can be put in ON or OFF condition for the purpose of testing.
Next Generation Signal Enhancement Figure 7: PA ON/OFF Settings (Only for DL) f) Other Parameters Settings (Figure 8) Other parameters to be specified are: Band set with DL path frequencies. Sub band frequency bandwidth. Type of attenuation viz. manual, automatic or through DIPswitch. Offset PA (DL) shut down. Offset RSSI DL. Offset DL Power set. APC DL Set power DL After configuring the parameters, these are saved by pressing SAVE.
Next Generation Signal Enhancement Figure 8: Different Parameters Settings (DL Path only) g) Attenuation Settings (Figure 9) If attenuation is to be set manually, that values for DL is specified.
Next Generation Signal Enhancement III) Status Monitoring (Figure 10) Parameter Output power DL Attenuation DL RSSI DL Power supply 7 V System Temperature Type of attenuation Alarm Remarks Prevailing RF power in DL path is displayed. Indicates the attenuation provided in the DL path. Indicates the prevailing value of RSSI level in DL path. Displays the value of 7 V derived supply. Indicates the instant temperature of the system. The type of attenuation introduced is indicted.
Next Generation Signal Enhancement IV) Alarms (Figure 12) Figure 12: Alarm Window (DL path alarms activated) Observation DL synthesizer fail PA Off (Auto) DL PA Off (Manual) DL PA Power Low -DL PA Power High -DL PA Temperature High-DL RSSI Low-DL LNA-DL System Temperature High Remarks Failure of synthesizer in DL is indicated. Indication draws the attention about the off condition of PA in DL. Indication draws the attention about the off condition of PA in DL.
Next Generation Signal Enhancement A red indication is for Alarm present. A green indication is for No alarm. V) Communication (Refer Figure 13) In COMMUNICATION window user can select serial communication port for communication: LOCAL CONNECTION In this type of connection, user computer COM Port and repeater’s USB Port is connected directly using cable. Steps as indicated below, are followed: • Click the “COMM.” on the command bar to display the COMMUNICATION window.
Next Generation Signal Enhancement Figure 13: Communication Window 8.
Next Generation Signal Enhancement • The DL Align LED will blink when system is in Downlink Alignment mode. • SHUT Down LED will Glow when the system goes out of order due to (poor isolation) or excessive input signal. The system will check for the normal state after 30 seconds continuously. If the system senses the right condition it will be ON automatically and start functioning. • Downlink RSSI is continuously monitored and level prevailing at a particular instant is displayed through 8 LED’s.
Next Generation Signal Enhancement 9.0 Fault Shooting & Maintenance 9.1 In-building Coverage Problems After the installation of R-20-930 unit, sometimes the actual coverage does not conform to the plan, different possibilities are discussed below and action is required to be taken accordingly. i. Physical obstructions degrading the signal level – Visually inspect the area of weak coverage. If possible, rearrange objects that may be interfering with the signal path.
Next Generation Signal Enhancement is adequate, in such condition, reduce the forward path signal using the forward attenuation in the repeater and minimize the forward signal level in step of 1dB until the problem subsides. But ensure that the In-Building signal level remains adequate for the coverage area. 9.3 Antenna Isolation Antenna isolation is defined by the path loss or attenuation, between the donor and server antennas.
Next Generation Signal Enhancement 9.4 Trouble shooting During post installation or subsequent period, some of the peculiar situation may be observed, some of them are discussed below: Conditions Possible Reasons & Solutions LED, s do not glow after the Repeater is switched ON. 1 Check the power adaptor and the AC power socket. 2 Please note that the AC mains has to be within the range 100 to 240V. 3 Check for the DC voltage of adaptor.
Next Generation Signal Enhancement Shut Down alarm indication LED glowing in red colour. DL Align LED is blinking 9.5 It indicates that the downlink received signal level is high due to poor isolation between antennas. Change the antenna positions. This is not the fault condition, the LED will blink when system is aligning it self. Contents Of Delivery i. Donor Antenna – 12 dBi Directional antenna ii. R-20-930 Unit iii. Power Adapter iv. Mounting screws v.
Next Generation Signal Enhancement Basement Coverage Donor Antenna RF Cable Ceiling Antenna R-20-930 All Rights Reserved Shyam Telecom Limited Page 35/36
Next Generation Signal Enhancement For Technical Support, please contact at any of the following addresses: For Americas Shyam Telecom Inc. 6, KILMER ROAD, SUIT D, EDISON, New Jersy-08817 (USA) Email: info@shyamtelecom.com For Europe Shyam Telecom GmbH. Frohsinnstrasse 16, 63739 Aschaffenburg, Germany Tel: + 49-6021-45901-0 Fax: + 49-6021-45901-29 Email: service@shyamtelecom.com For ASEAN & Others Shyam Telecom Ltd.
Next Generation Signal Enhancement All Rights Reserved Shyam Telecom Limited Page 37/36