Shyam DB6MR20 Operation & Installation Manual Download Page 40

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Next Generation
Signal Enhancement

attenuator may be inserted between the donor antenna and the
repeater or reduce the forward path signal using the attenuation
control with the likely compromise to the overall coverage within the
building.

TYPICAL PRODUCT APPLICATION

Figure 20: Indoor Application of DB6MR20 in a room

DB6R20

Celling Antenna

Summary of Contents for DB6MR20

Page 1: ...00 December 2008 Proprietary Information The information contained herein is proprietary to Shyam Telecom Limited Unauthorized access copy and replication are prohibited This document must not be copi...

Page 2: ...l In Building Coverage 11 6 To Get started Basic Software Control of the System 14 6 1 General 14 6 2 Terminal Set up 14 6 3 Block Diagram Description 24 7 DB6MR20 Repeater Specifications 26 7 1 Speci...

Page 3: ...Shyam Telecom Limited 3 43 Next Generation Signal Enhancement 8 8 Dos Don t Dos 36 8 9 Display Details of DB6MR20 37 9 System Maintenance 38 9 1 General 38 9 2 Preventative Maintenance 38 9 3 In Build...

Page 4: ...43 Next Generation Signal Enhancement 1 Document History Document Number Document Name Date Compiled by Approved by Revision 5920 0060 200 DB6MR20 Repeater December 2008 Inderjit Ramvir Singh Revisio...

Page 5: ...ll specifications are subject to change without prior notice 3 Safety Instructions and Warnings 3 1 Personnel Safety Before installing or replacing any equipment the entire manual should be read and u...

Page 6: ...xed mounted on outdoor permanent structures with a separation distance of at least 1 5 meters from all persons during normal operation The RF electric performance of the DB6MR20 repeater conforms to F...

Page 7: ...it CSEL Channel Selective DCS Digital Communication System DL Downlink signal from base station via repeater to mobile station EGSM Extended Global System for Mobile Communication ETSI European Teleco...

Page 8: ...even using high radiated RF powers or complicated antenna systems there are zones within the coverage area where the RF signal strength from base station remains inadequate for establishing the desir...

Page 9: ...ular and PCS Band applications The Customer is advised to refer to the sticker on the repeater unit giving the details of frequency bands set the bandwidths of different sub bands equipped in the repe...

Page 10: ...e signals from the mobile users are picked up by SERVER antenna and retransmitted to the BTS after processing amplification in the repeater The repeater consists of the following modules units LNA Con...

Page 11: ...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 Coverage is primarily determined by th...

Page 12: ...s of approximately 5 dB 125 feet of typical 1 2 coaxial foam cable Interior building structure consists of typical vertical stud and drywall composition Isolation between the donor and server antennas...

Page 14: ...t up The system is delivered with software loaded in order to perform configuration as per requirement The laptop PC should be loaded with the CMC software available on the supplied CD along with the...

Page 15: ...ion window This window allows access to all the configurable repeater parameters SET This is for updating the repeater parameters READ This is for reading configured parameters from repeater Repeater...

Page 17: ...gure 9 Maximum Output Power limit in DL UL paths are defined PA Power High alarm will be generated when PA power exceeds the upper limit RSSI limits Figure 9 Lower High RSSI Limits in downlink uplink...

Page 19: ...Real time RSSI DL signal strength in both the bands is indicated Location System location is displayed Serial Number Serial number factory settable is displayed Repeater ID A unique repeater ID set b...

Page 20: ...es that the RSSI has exceeded the higher limit set PA Power Low DL When PA Power goes below the lower limit set by the user this alarm is generated PA Power High DL When PA Power exceeds the upper lim...

Page 21: ...on In this type of connection user computer COM Port and repeater s USB Port are connected directly using cable Steps as indicated below are followed Click the COMM on the command bar to display the C...

Page 22: ...ly located through a sticker provided on the same It has a groove with SIM cardholder in which the SIM card can be inserted for remote communication VI Security Figure 14 The system has been incorpora...

Page 24: ...ransforms electromagnetic waves into RF signals in the DL and vice versa in the UL The antenna with no more than 10dBi to 12dBi gain transfers received signals to the repeater and transmits uplink sig...

Page 25: ...s in the UL DL directions g Supervisory The man machine communication between the user and the repeater is established through this module One of the two options as given below can be used for achievi...

Page 26: ...figuration or as per requirement 5 RF output power in DL 19dBm 1dBm P1 26dBm 6 Gain 85 0dB 3dBm 7 Spurious Emission 36dBm 9KHz to 1GHz 30dBm 1GHz to 12 75 GHz 8 Gain variation over temperature 1 5 dB...

Page 27: ...pplication Housing Color Grey Cooling Convection 7 5 Environmental Specification Conditions Specification Operating Temperature 5o C to 50 0 C 230 F to 1220 F Storage Temperature 300 C to 750 C 220 F...

Page 28: ...quency Band DL UL Sub Band 5 Frequency Band DL UL Sub Band 6 Frequency Band DL UL 2 Technical requirements S NO Requirement Remarks 1 Estimated RF Power available at site where donor antenna is to be...

Page 29: ...the donor antenna associated with the repeater unit should have line of sight with BTS site to reduce the effects of fading Another important aspect when choosing a repeater location is the availabil...

Page 30: ...ion dB 22 20 log D in meters Gain of donor antenna gain of server antenna D Distance between donor server antennas in meters Wave length in meters The following table is an approximate guide to antenn...

Page 31: ...ntributes a maximum signal delay of 5 5 microseconds in each direction d Call Processing The mobile communication system perceives calls handled by the repeater as actually being handled by the donor...

Page 32: ...re 18 Connections at ports 8 4 Installation Procedure 1 RF cable installation must comply with local or National Electrical Codes The cable shall have nominal 50 Ohm impedance Pull and route the RF ca...

Page 33: ...by DONOR antenna from BTS and transmitted to the repeater are termed as DL Forward signals and the signals originated by mobile users and intercepted by SERVER antenna for application to repeater are...

Page 34: ...ctrum analyzer with appropriate PAD 1 Plug the power cable to the AC mains and switch ON the unit 2 Once the repeater is ON the LEDs will not glow under normal condition 3 The UL Align indication LED...

Page 35: ...in set of the repeater 2 Actual isolation measured 3 Ensure proper grounding of the unit 4 Cable from donor antenna connected to donor antenna port 5 Cable from server antenna connected to the relevan...

Page 36: ...There should be adequate separation between antenna system and power lines to avoid damage to system and humans 7 Local standard of cabling should be followed 8 The donor antenna should have proper li...

Page 37: ...the conditions in both the bands Figure 19 LED Display on DB6MR20 UL ADJ will blink when system is in Uplink Alignment mode DL ADJ will blink when system is in Downlink Alignment mode ALC LED will bli...

Page 38: ...uilding Coverage Problems If the coverage area appears to be smaller than the installation site plan there are only a few possibilities that limit the signal level in the area I Physical obstructions...

Page 39: ...is defined by the path loss or attenuation between the donor and server antennas It is important to ensure that the antennas are sufficiently separated such that the signal transmitted by donor antenn...

Page 40: ...r may be inserted between the donor antenna and the repeater or reduce the forward path signal using the attenuation control with the likely compromise to the overall coverage within the building TYPI...

Page 42: ...tennas listed below and having a maximum gain of 12dBi Antennas not included in this list or having a gain greater than 16dB are strictly prohibited for use with this device The required antenna imped...

Page 43: ...esses For Americas Shyam Telecom Inc 6 KILMER ROAD SUIT D EDISON New Jersy 08817 USA For Europe Shyam Telecom GmbH Frohsinnstrasse 16 63739 Aschaffenburg Germany Tel 49 6021 45901 0 Fax 49 6021 45901...

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