© Dekolink Wireless Ltd Rev. 1.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL ABOUT THIS MANUAL This Product Manual describes the Deko3178B Dual Band BDA and provides information on how to setup, configuration of the Dual Band BDA and troubleshooting procedures. TO WHOM IT IS INTENDED: This Product Manual is intended for experienced technicians and engineers.
PRODUCT MANUAL CBDA DEKO3178B DEKOLINK WIRELESS LTD. SAFETY WARNINGS Throughout this manual, important safety warnings are included to warn of possible hazards to persons or equipment. A safety warning identifies a possible hazard and then describes what may happen if the hazard is not avoided. The safety warnings – in the form of Dangers, Warnings and Cautions must be followed at all times. These warnings are flagged by the use of a warning icon, usually the triangular alert icon seen below.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL REVISION HISTORY The revision history 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.
PRODUCT MANUAL CBDA DEKO3178B DEKOLINK WIRELESS LTD. CONTENTS About This Manual ........................................................................................................... i To Whom It Is Intended: ................................................................................................... i Notice ................................................................................................................................ i Disclaimer of Liability ...............................
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL 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: ..........................................................................................
PRODUCT MANUAL COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. 1 INTRODUCTION Deko3178B is a dual-band 700/800 MHz band selective mid-power amplifier in a single compact unit. Specially designed for public safety in-door networks, the Deko3178B small foot-print and flexible installation options minimize interference with operations on the floor on which it is installed. It can be installed in a rack, mounted on a wall or on the ceiling.
DEKOLINK WIRELESS LTD. 1.2 COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL DEKO3178B BLOCK DIAGRAM DESCRIPTION The CBDA Downlink path receives the RF signal from the base station, amplifies it and transmits it to the subscriber. The BDA Uplink path receives the RF signal from the subscriber amplifies it and transmits it to the base station.
PRODUCT MANUAL 1.3 COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. DEKO3178B INTERFACES The Deko3178B interfaces are located on the dual band BDA top and front panel. 1.3.1 Front Panel Ports The front panel includes the dual band below. antenna and power connections as shown There are two types of antenna connectors: Base (Donor) and Mobile (Service) connections. Donor antenna connections Service antenna connections Dry contact alarm connections Unit AC Power connection Figure 1-3.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL 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. Uplink step attenuator Downlink step attenuator Figure 4. Internal View of Deko3178B UL/DL Step Attenuators Pub. 300TC80031 Rev. 1.
PRODUCT MANUAL COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. 1.3.3.1 UL Step Attenuator The manual gain setting function 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.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL 2 SITE AND INSTALLATION INSTALLATION REQUIREMENTS This section describes the power, antenna and site requirements for the Dual Band BDA installation. 2.1 GROUNDING WIRES REQUIREMENTS Requirements for grounding wires 2.2 • Protective grounding conductor - should be aluminum with cross-section 10AWG.
PRODUCT MANUAL 2.3 COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. PRE-INSTALLATION SAFETY INSTRUCTIONS Before installing the Dual Band BDA, review the following safety information: 2.4 • Follow all local safety regulations when installing the Dual Band BDA. • Only qualified personnel are authorized to install and maintain the Dual Band BDA. • During normal operation, the Dual Band BDA door should be closed.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL 3 INSTALLING THE DUAL BAND BDA 3.1 UNPACKING Upon receiving the Deko3178B unit, perform the following: 1. Examine the shipping container for damage before unpacking the unit. 2. Perform a visual inspection to reveal any physical damage to the equipment. 3. Verify that all of the equipment (listed below) is included. Otherwise contact Dekolink Wireless Ltd.
PRODUCT MANUAL COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. Mounting hole x4 Figure 7. Deko3178B Mounting Holes 3. Drill the four holes in the wall. 4. Align the chassis so that the mounting brackets fit into the holes drilled in the wall. 5. Use tire 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.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL The following table provides a description of the Alarm connector pinout and the corresponding cable wire color-match pin. No. 1 2 3 4 5 6 7 3.4 Pin A B C D E F G Signal Name Not Connected Not Connected Dry Contact – Normally Closed Dry Contact - Normally Open Not Connected Not Connected Dry Contact - Common • The relay alarms are Normally Open, however they close upon power up.
PRODUCT MANUAL COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. 4 ANTENNAS INSTALLATION INSTALLATION AND CONNECTION 4.1 RF GAIN SETTING CRITERIA In order for the CBDA Dual Band BDA to operate effectively the isolation between the base station and the mobile antenna must be at least 15 db higher than the CBDA gain. The step attenuator on the low noise amplifier can reduce the CBDA gain. The CBDA gain can be reduced by the amount indicated on the step attenuator.
DEKOLINK WIRELESS LTD. 4.3 COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL ANTENNA CONNECTIONS Note 1: Do not operate the Dual Band BDA without terminating the antenna connections with actual antennas or proper dummy loads. Note 2: If the coaxial cables are NOT weather-resistant type, wrap the exterior coaxial cables with insulation and holding tape (Type 3M Rubber splicing tape) for environmental protection and to ensure longer lifetime.
PRODUCT MANUAL COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. 2. Measure the coupled output from the Service antenna, using the Spectrum analyzer and LNA if applicable. 3. Perform this procedure across the frequency range of both the Uplink and Downlink bands. 4. Register the lower result for system operation. NOTE: The SALC feature overcomes this procedure. 4.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL 5 MONITORING AND ALARMS ALARMS 5.1 DEKO3178B ALARMS The Deko3178B Dual Band BDA has two main active elements: DL Power Amplifier and UL power amplifier. A monitor circuit monitors these elements and initiates an alarm upon detecting a deviation from the normal operation. The summarized alarm output of the monitoring card is sent to the corresponding front panel Alarm connector.
PRODUCT MANUAL COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. APPENDICES: APPENDICES: APPENDIX A: SPECIFICATIONS (@+25°C) This paragraph provides the electrical, mechanical and environmental specifications of the Deko3178B Dual Band BDA. Parameters Frequency Range USA Canada DL UL 769 - 775 MHz 851 – 869 MHz 799 - 805 MHz 806 - 824 MHz 759-780 MHz 847-872 MHz 790-828 MHz Passband Gain 80 dB Passband Ripple ± 1.
DEKOLINK WIRELESS LTD. COMPACT BI-DIRECTIONAL AMPLIFIER DEKO3178B PRODUCT MANUAL APPENDIX B: MECHANICAL DRAWING The following mechanical drawing shows the Deko3178B dimensions. Pub. 300TC80031 Rev. 1.
PRODUCT MANUAL COMPACT REPEATER DEKO3178B DEKOLINK WIRELESS LTD. APPENDIX C: DEKOLINK WIRELESS LIMITED WARRANTY Dekolink Wireless [Ltd.] (“Dekolink”), manufacturer of this product (the “Product”) warrants to the original purchaser (“Purchaser”) that the Product is free from defects in materials and workmanship for a term that ends on the earlier of twelve (12) months from the date of activation of the Product or fifteen (15) months from the date of shipment of the Product by Dekolink.
