© Dekolink Wireless Ltd
Rev. 1.55
Страница 1: ... Dekolink Wireless Ltd Rev 1 55 ...
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Страница 3: ...link Wireless channels or customers The material herein is proprietary to Dekolink Wireless Ltd Any unauthorized reproduction use or disclosure of any part thereof is strictly prohibited All trademarks and registered trademarks are the property of their respective owners DISCLAIMER OF LIABILITY The remedies provided herein are the Buyer s sole and exclusive remedies Dekolink Wireless Ltd shall not...
Страница 4: ...intenance of this product Only a qualified and authorized personnel should carry out adjustment maintenance or repairs to the components of this equipment DANGER ELECTRICAL SHOCK This equipment is intended to be installed indoor Wet conditions increase the potential for receiving an electric shock when installing or using electrically powered equipment To prevent electrical shock when installing o...
Страница 5: ...istory for this document is shown in Table 1 Table 1 Revision history P N Revision Date Description 300TC80031 1 0 26 FEB 2008 Initial Version 300TC80031 1 3 13 May 2008 Frequency change minor edits 300TC80031 1 4 27 May 2008 Minor edits from lab 300TC80031 1 5 28 May 2008 Minor edits power per carrier 300TC80031 1 55 29 May 2008 Minor edits Warning Canada freq ...
Страница 6: ...or 10 1 3 3 2 DL Step Attenuator 10 2 Site and Installation Requirements 11 2 1 Grounding Wires Requirements 11 2 2 Antenna Requirements 11 2 2 1 Base Donor Antenna 11 2 2 2 Mobile Service Antenna 11 2 3 Pre Installation Safety Instructions 12 2 4 Installation Location Environment and Cables 12 3 Installing the Dual Band BDA 13 3 1 Unpacking 13 3 2 Required Tools and Materials 13 3 3 Dry Contact A...
Страница 7: ...ge v 4 5 Verifying the Link between the BTS and the Dual Band BDA 18 5 Monitoring and Alarms 19 5 1 Deko3178B Alarms 19 Appendices 20 Appendix A Specifications 25 C 20 Electrical 20 Mechanical Specifications 20 Environmental Specifications 20 Appendix B Mechanical Drawing 21 Appendix C Dekolink Wireless Limited Warranty 22 ...
Страница 8: ...oes not require a high level technician provides significant savings on labor costs The Deko3178B can be remotely monitored via an external wireless modem connected to dry contacts on the unit It can be remotely accessed through a secure website or through a third party NMS via SNMP traps Figure 1 1 Deko3178B Dual Band BDA 1 1 FEATURES Band selective mid power amplifier for public safety in buildi...
Страница 9: ...he signals in each path Each path contains two amplifiers and an RF SAW Filter that provides signal filtration and amplification In addition the Dual Band BDA power amplifiers have an ALC option switch When switched on the ALC circuit limits the amplifier output power The ALC circuit senses the output power and introduces more attenuation when the output power exceeds the preset level This way the...
Страница 10: ... Donor and Mobile Service connections Figure 1 3 Deko3178B Front Panel The following table provides a description of the front panel ports and connections Group Connectors BASE Donor antenna connections MOBILE Service antenna connections EXT Alarm Dry contact alarm port for external alert devices AC Connection to AC power supply 100 to 240 VAC 1 3 2 Front Panel Indicators The front panel includes ...
Страница 11: ... Rev 1 55 Proprietary Data Page 9 1 3 3 Internal Power Selector Deko3178B includes two internal power level selectors used for manual UL and DL gain control adjustment See following figure Figure 4 Internal View of Deko3178B UL DL Step Attenuators Uplink step attenuator Downlink step attenuator ...
Страница 12: ...ion for the UL path is performed with the use of a rotary knob The attenuation can be adjusted in 2 dB steps See following figure Figure 5 UL Step Attenuator 1 3 3 2 DL Step Attenuator The manual gain setting function for the DL path is performed with the use of a rotary knob The attenuation can be adjusted in 2 dB steps See following figure Figure 6 DL Step Attenuator ...
Страница 13: ...ntenna is usually installed outdoors and is either a directional antenna such as a Yagi or a Panel antenna Donor Antenna specifications Yagi type or similar 10 to 15 dBi gain very sharp beam pointed to the BTS Cable and jumper loss is at least 2dB The required Base signals should be the dominant signals at least 6 dB higher power than other signals Example of antenna s typical specifications Gain ...
Страница 14: ...the external lower side of the cabinet see 3 4 Do not use the grounding bolt to connect external devices Follow Electro Static Discharge ESD precautions Before closing the CBDA cover make sure no wires are in the way Use low loss cables to connect the antennas to the Dual Band BDA 2 4 INSTALLATION LOCATION ENVIRONMENT AND CABLES WARNING THE DUAL BAND BDA MUST ALWAYS BE INSTALLED VERTICALLY AND TOP...
Страница 15: ... shipped with the following equipment Deko3178B Dual Band BDA Model MW CBDA SMR700 800 16W80 Key used to lock the Dual Band BDA case AC supply cable 6 ft User Manual CD Packaging box 3 2 REQUIRED TOOLS AND MATERIALS A standard professional tool box is required in order to mount the Deko3178B Dual Band BDA Mounting the Deko3178B To mount the Dual Band BDA on the wall 1 Choose the location of the Du...
Страница 16: ...ire bolts hex head bolts and M8 washers to secure the enclosure firmly to the wall Note Bolts and Washers are not supplied with the Dual Band BDA 3 3 DRY CONTACT ALARM CONNECTIONS The front panel Alarm port see 1 3 1 is an optional dry contact alarm port that supports two alarm connections from external sources incoming outputs The use of relay alarms open or short wire pair circuit is recommended...
Страница 17: ...nel Alarms connector used for remote sensing of faults 3 4 GROUNDING Once the Dual Band BDA is installed you are required to ground it The Dual Band BDA case includes a grounding lug where a grounding conductor cable should be attached The Dual Band BDA grounding conductor is found at the right hand side of the bottom panel The protective grounding conductor should be copper with cross section of ...
Страница 18: ...DA gain it would not be enough to cause oscillation however it would cause gain ripple in the band 4 2 ANTENNA INSTALLATION 4 2 1 Base Donor Antenna NOTE Verify that the antennas meet requirements described in section 2 2 1 Installation requirements The antenna should point to the direction of the base station for maximum input power Verify that the antenna is in the base stations line of sight ra...
Страница 19: ...tenna Connections 4 4 VERIFYING ISOLATION BETWEEN DONOR AND MOBILE ANTENNAS The isolation between the Base Donor and Mobile Service antennas is critical especially for high gain outdoor applications For proper operation of the Deko3178B Dual Band BDA it is recommended that the isolation between the Donor and Service antennas be at least 15 dB higher than the Dual Band BDA set gain The isolation be...
Страница 20: ...st checks the signal strength from the BTS antenna to the CBDA Dual Band BDA Proceed as follows 1 Using a Spectrum analyzer measure the received signal from BTS at the Donor antenna port near the Dual Band BDA 2 Adjust the Donor antenna direction to receive the maximum signal strength 3 Compare the received signal strength with the calculated signal strength from the design phase In case of discre...
Страница 21: ...e corresponding front panel Alarm connector The monitor circuit performs the following functions Monitors the current of uplink power amplifier If the current is either below or above the specified limits an automatic alarm function is provided through a lit LED and a dry contacts relay Monitors the downlink RF output power If the output power is lower than 20dBm an alarm function is provided by a...
Страница 22: ...riers 26 dBm 20 dBm Output IP3 typical 50 dBm 43 dBm Noise Figure Maximum Gain typical 5 dB Propagation Delay 5 µsec Max RF Input Power no damage 10 dBm Max RF Input Power Per carrier Max Gain Single carrier 49dBm 57dBm Multiple carriers 56dBm 60dBm Electrical Parameter Value Power Supply 100 240 VAC 105 W Impedance Level 50 Ω RF Connector N type female Diplexer s Connectors SMA type female VSWR t...
Страница 23: ...IRELESS LTD COMPACT BI DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL Pub 300TC80031 Rev 1 55 Proprietary Data Page 21 APPENDIX B MECHANICAL DRAWING The following mechanical drawing shows the Deko3178B dimensions ...
Страница 24: ...nt or by act of vandalism or repaired or altered in any way that adversely affects its performance or reliability To obtain warranty service Purchaser may upon the prior written authorization of Dekolink or its authorized service representative return the defective Product to Dekolink authorized service center All shipping and insurance charges are the sole responsibility of Purchaser and are not ...
