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Dekolink Wireless MW-CBDA-SMR-800-900-1W80, Installation And Operating Instructions Manual

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Dekolink Wireless MW-CBDA-SMR-800-900-1W80 Installation And Operating Instructions Manual Download Page 13

 

Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 
Tel- 972-3-9180-180; Fax-972-3-

190

-

9180

; 

[email protected]

 

 

 

Electrical Specifications

 

 

Downlink frequency range   

851- 869 MHz 

935 - 941 MHz

Uplink frequency range   

806 - 824 MHz 

896 - 902 MHz

Pass band gain @min attenuation

 80 dB nominal

Pass band ripple 

±

 2 dB typical 

Manual attenuation range 

0 to 30 dB in 2 dB step  

Noise figure @max gain

6.0 dB max

 V.S.W.R In/Out

 1.5: 1 max

AGC  selection

By ON/OFF Switch

AGC attenuation range 

 25 dB typical

AGC  LED  indication

 LED turn ON when power reaches AGC Set 

  Power Level. (both at On and Off positions).

Composite power

+25 dBm nom.

AGC factory power preset 

+24 dBm nom.

3rd Order output spurious

48 dBc typical  for 2 s20 dBm each

3rd Order output Intercept point

+44 dBm typical         

Downlink alarm turn on

  

DL power <15 dBm 

Power Supply 

  

 110/220V AC, 50-60 Hz /50 Watt 

 

 

; 

Web site- 

www.dekolink.com

                        

r

ev 1    11/04

                                                 page 13 of 16

                   

 

Summary of Contents for MW-CBDA-SMR-800-900-1W80

Page 1: ... rev 1 11 04 Dekolink Wireless Proprietary and Confidential Information Copying Distribution and Disclosure are prohibited without Express Authorization from Dekolink Wireless Company This document is protected by all applicable copyright laws page 1 of 16 Installation and Operating Instructions for MW CBDA SMR 800 900 1W80 Dual Band Compact Bi Directional Amplifier ...

Page 2: ...n Setting 5 AGC Function 6 AGC Gain Controls 6 AGC Amplifier Layout 6 CBDA Monitor and Alarm 7 CBDA Monitor and Alarm Function Block Diagram 8 CBDA Installation 9 Base Donor Antenna Installation 9 Remote Service Antenna Installation 9 Antenna Isolation 9 Installation Steps 10 Diagnostics Guide 11 Top Cover LED Indications 11 RF Faults and RF Power Amplifiers LED Indications 12 Electrical Specifica...

Page 3: ... 900 in one product 80 dB RF gain Over 24 dBm 1 4 Watt downlink composite power Alarm indication by LED and Dry contact Automatic power limit option Exceptionally high linear operation Ideal for in building coverage solutions Relative small size and light weight Cost effective solution Wall mounted easy Installation Reliable operation maintenance free Top Cover Alarm Indications PWR Power on green...

Page 4: ...the spurious signals Step attenuator The CBDA gain can be stepped down by the amount indicated on the step attenuator lock Diagram Description B The CBDA Downlink path receives TX signals from base station amplifies them and transmits them to the subscriber The CBDA Uplink path receives RX signals from the subscriber amplifies them and transmits them to the base station Two quad filter assemblies ...

Page 5: ... Attenuator RF Gain Setting For proper operation of the CBDA the isolation between the base station antenna and the mobile antenna should exceed the CBDA gain by at least 12 dB If the CBDA gain were higher than the isolation between the antennas oscillation would start and would saturate the amplifier Isolation few dB higher than the CBDA gain cannot start oscillations but would cause gain ripple ...

Page 6: ...en the AGC is On and when the AGC is OFF The switch on the RF amplifier enables the AGC function If the AGC is disabled then the amplifier gives maximum gain and maximum power AGC and Gain Controls The AGC and GAIN SETTING functions for the up link path are reached by opening the small slide door located on the CBDA left side adjacent to the BASE antenna port For the down link path the door is on ...

Page 7: ...rm function is provided by a LED on the CBDA cover which illuminates and by dry contacts of a relay Monitors the downlink RF output power If the output power is over 10 dB below the rated value then an alarm function is provided by a LED on the CBDA cover which illuminates and by dry contacts of a relay The relay arms are normally open they close when power goes on at no faults Whenever any fault ...

Page 8: ...nsor DL Low RF Power Alarm 8 Pin Connector Sum of all Alarms Summary Alarm Shown at Fault Position Current Sensor UL Power Amplifier Current Alarm 28 V To UL Power Amplifier DC Supply Red LED Red LED To pin 2 of D9 Alarm connector To pin 3 of D9 Alarm connector To pin 4 of D9 Alarm connector Alarm relay connection to D connector Pin 2 to 4 open at any fault short at no fault Pin 2 to 3 short at an...

Page 9: ...s antenna should be in line of sight with the base site Raise this antenna higher if no line of sight is achieved The required Base signals should be the dominant signals at least 6 dB higher power than other signals Choose the antenna site to get the maximum isolation from the remote mobile serving antenna Service Antenna Installation Remote The remote antenna is an Omni antenna or a directional ...

Page 10: ...r composite power has reached the CBDA If the donor power is low the LED will not lit and the CBDA usable power is not used efficiently 6 The RF power alarm LED on the CBDA cover will lit if the downlink power is over 10 dB below the composite power 7 Set the uplink gain to the same as the downlink gain 8 Check that the uplink LED on the CBDA monitor does not lit permanently This LED would lit per...

Page 11: ...ink faults The green LED is AC power on indication Indication Cause Action Downlink LED on cover is ON Indicates low RF power at downlink path 15 dBm Check base antenna connection Check antenna alignment to base Use higher gain BDA Uplink Amp LED on cover is ON Uplink amplifier over current or undercurrent fault Replace CBDA These faults can be sensed remotely from the dry contact relay arms wired...

Page 12: ...transmission in the downlink amplifier Make sure the amplifier is not overloaded Turn AGC on or reduce gain so that LED just turns from off to on Set the same gain for the uplink channel Uplink LED on amplifier lights all the time Bad antenna isolation causing the repeater system to oscillate Improve the isolation between the antennas or reduce RF gain To verify disconnect one RF port LED should t...

Page 13: ...e 0 to 30 dB in 2 dB step Noise figure max gain 6 0 dB max V S W R In Out 1 5 1 max AGC selection By ON OFF Switch AGC attenuation range 25 dB typical AGC LED indication LED turn ON when power reaches AGC Set Power Level both at On and Off positions Composite power 25 dBm nom AGC factory power preset 24 dBm nom 3rd Order output spurious 48 dBc typical for 2 signals 20 dBm each 3rd Order output Int...

Page 14: ...am Yagi type or similar pointed to the donor BTS This type of antenna has about 10 dBi gain Typical specifications gain 8 dBd 10 1 dBi VSWR better than 1 5 1 Impedance 50 ohm The outdoor antenna must be installed to provide a minimum separation distance of 0 5 m 50 cm from persons within the area The second antenna is connected via cable that has typical 1 10 dB attenuation depends on the length o...

Page 15: ...l St Qiryat Arieh Petah Tikva Israel 49510 Tel 972 3 9180 180 Fax 972 3 190 9180 Email marketing dekolink com Install this way up with RF connectors facing down Mechanical Outline Web site www dekolink com rev 1 11 04 page 15 of 16 ...

Page 16: ...ndalism 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 s authorized service center All shipping and insurance charges are the sole responsibility of Purchaser and are not included in this...

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