Dekolink Wireless CBDA8009001W65 Bi-Directional Booster User Manual installation and operating instructions

Dekolink Wireless Ltd Bi-Directional Booster installation and operating instructions

installation and operating instructions

eless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Fax-972-3- 190-9180 ; Email-marketing@dekolink.comTel- 972-3-9180-180; ; 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. Web site- www.dekolink.com rev 0 11/04 page 1 of 16 Installation and Operating Instructions for MW-CBDA-SMR-800-900-1W65 Dual Band Compact Bi-Directional Amplifiers Dekolink Wir
Table of Contents Paragraph Page No CBDA Overview 3 Main Characteristics 3 Top Cover Alarm Indications 3 Remote Alarm Connector (back panel) 4 CBDA Indications and Control ( side windows) 4 Block Diagram Description 4 RF Block Diagram 5 AGC & MGC Function 6 AGC & MGC Control Diagram 6 CBDA Monitor and Alarm 7 CBDA Monitor and Alarm Block Diagram 8 BDA Installation 9 Base/Donor Antenna Installation 9 Remote / Service Antenna Installation 9 Antenna Isolation 9 Installation Steps 10 Diagnostics Guide 11 BDA Top Cover LED Indications 11 RF Power Amplifiers LED Indications 12 Electrical Specifications 13 Environmental Conditions 14 Mechanical Specifications 14 RF Exposure Warning 14 Mechanical Outline 15 Dekolink Wireless Limited Warranty 16 Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 2 of 16
CBDA Overview The Compact Bi-Directional Amplifier (CBDA) assembly provides exceptional repeater/booster performances to extend the coverage area of radio communications in buildings and RF shielded environments. Main Characteristics • Covers both SMR 800 and SMR 900 in one product. • 65 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 LED UL: Illuminates at uplink power amplifier current fault DL: Downlink RF power fault. Illuminates when the DL transmitted power is less than +15 dBm. Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 3 of 16
Remote Alarm Connector (back panel) Dry contact relay arms are connected to this D9 connector. The relay arms switch over at either one of the two alarms indicated on the top cover. )side windows(CBDA Indications and Control These are reached by opening the window on the sides of the CBDA AGC LED: This red led illuminates when the transmitted power is equal or higher than the composite power (factory preset at +24 dBm and DL). AGC ON/OFF switch: Turns on the automatic power control. Warning: The AGC switch must be always ON in order to limit the spurious signals. Step attenuator: The CBDA gain can be stepped down by the amount indicated on the step attenuator. Block Diagram Description The CBDA Downlink path receives the RF signals from base station amplifies them and transmits them to the subscriber. The BDA Uplink path receives the RF signals from the subscriber amplifies them and transmits them to the base station. Two quad filter assemblies frequency separate the signals to the proper amplifying path and isolate the two signals. For each path there is an AGC amplifier. The amplifier has an AGC option switch. When switched on, the AGC circuit limits the amplifier output power. The AGC circuit senses the output power and introduces more attenuation, when the output power exceeds the preset level. This way the gain of the amplifier is reduced, its output power is limited and the intermodulation products are kept below the desired level. In this manner the output power cannot exceed the preset power and the IMD levels are always kept below –13 dBm. The AGC amplifier has a Power LED lamp that illuminates when the output power has reached the preset power limit. In addition the BDA has a trimmer that enables continuos reduction of the gain by over 15 dB. Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 4 of 16
RF Block Diagram DownlinkUplinkAttenuatorPowerMonitorPAAGCAttenuator PAAGCTo BaseTo ServiceAreaTX806 to824 MHz896 to902 MHz851 to869 MHz935 to941 MHzRXQuad FilterAssyTX806 to824 MHz896 to902 MHz851 to869 MHz935 to941 MHzRXQuad FilterAssyPowerMonitorGain ControlGain ControlDekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 5 of 16
AGC & MGC Function The CBDA has AGC function. Their amplifier has a directional coupler and a detector at the output of the high power amplifier to monitor the output power. When a high signal is received the automatic level control detects the amplitude and sends a feedback signal to a voltage variable attenuator which attenuates the signal level so that the output power of the amplifier does not exceed the preset limit. The LED on the amplifier illuminates when the power out the amplifier is within the set limit (both when 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. MGC: The RF gain of the CBDA can be reduced by about 15 dB using the continuos trimmer on the amplifier. The RF gain is at maximum when the trimmer is at counter-clockwise direction. To reduce the gain, turn the trimmer clockwise using a screwdriver. Turning it halfway would reduce the gain by 7.5 dB. The AGC and MGC functions for the uplink path are reached by opening a small cover located on the DBA side adjacent to the Mobile antenna port. For the downlink path the window is located on the side near the Base antenna port. Warning: The AGC switch must be always ON in order to limit the spurious signals.AGC & MGC Control (Control Window Located at BDA sides) Gain Control Trimmer (MGC) PowerOut LED AGC Enable SwitchDekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 6 of 16
CBDA Monitor and Alarm The two main active elements are the Downlink Power Amplifier and the Uplink power amplifier. Each CBDA has a monitor circuit to monitor these elements and give alarm signal when there is a deviation from normal operation. The summarized alarm output of the monitor card is sent to a D-type connector on the front panel. The monitor circuit performs the following functions: • Monitors the current of uplink power amplifier. If the current is below or above the specified limits then an automatic alarm 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 occurs or when the power is cut off from the CBDA the relay arms open. The relay arms are connected to pins 2,4 of a 9 pin D type male connector on the front panel of the CBDA for remote sensing of faults. Pin 2 and 3 of the D type connector provide complimentary relay alarm function; short at fault and open at no fault. • The alarm LEDs (red) are displayed on the CBDA cover. The green led is power on indication. Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 7 of 16
CBDA Monitor and Alarm Function Block Diagram Green LED+28 VPower On IndicationDL RF PowerDetection(from DL PowerAmplifier)PowerSensorDL Low RFPower Alarm8 PinConnectorSum of allAlarmsSummaryAlarm(Shown atFault Position)CurrentSensorUL Power AmplifierCurrent Alarm+28 VTo UL Power AmplifierDC SupplyRed LEDRed LEDTo pin 2 of D9 AlarmconnectorTo pin 3 of D9 AlarmconnectorTo pin 4 of D9 Alarmconnector Alarm relay connection to D connector: Pin 2 to 4 open at any fault; short at no fault Pin 2 to 3 short at any fault; open at no fault Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 8 of 16
CBDA Installation Install the CBDA Repeater in a shielded, ventilated and easy to reach area. Use low loss cables to connect antennas to the CBDA. Install the CBDA close to the service area to improve output power and noise figure. Mount the CBDA with RF connecters pointing down. The RF connection is made via two type “N” female connectors. The RF connector labeled “Base” must be connected to the antenna; usually a Yagi; pointing to the base station. The RF connection labeled “Mobile” must be connected to the antenna pointing into the area to be covered by the CBDA. Note: For cooling purposes The CBDA must be installed with the RF connectors facing down. Base / Donor Antenna Installation Typically this is a directional antenna such as Yagi or Dish antenna of 10 to 15 dB gain. This antenna is pointed to the base station to get maximum input power. This 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. Remote / Service Antenna Installation The remote antenna is an Omni antenna or a directional antenna according to the coverage requirements. For indoor applications covering a large building, the RF signals are split using power dividers and distributed to many antennas each covering a floor or a small area. Antenna Isolation For proper operation the isolation between these two antennas must be at least 12 dB higher than the CBDA gain. Lower isolation would lead to high in-band ripple. Oscillations will build up when the isolation is lower than CBDA gain. The isolation between the antennas is critical for high gain outdoor repeaters. To measure the isolation; inject a known signal into one antenna and measure the power at the other antenna. This should be done across the frequency range of both uplink and downlink bands. Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 9 of 16
Installation Steps 1. Install all antennas and connect them to the CBDA inputs. 2. Open the access windows at the sides of the CBDA so that the variable attenuator is reached and the LED is visible. 3. Turn the AGC On. This AGC limits the output power of the CBDA. The AGC on the Downlink path guarantees constant downlink power when and if the Donor power changes. Warning: The AGC switch must be always ON in order to limit the spurious signals. 4. Set downlink gain to minimum; uplink gain to minimum ( by turning the gain control trimmer clockwise). 5. Increase the downlink channel gain (by turning the gain control trimmer counterclockwise) till the LED turns from off to on. This is the best gain setting giving highest usable power. 6. The LED on the downlink power amplifier will illuminate if adequate donor 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. 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 permanently If the isolation between antennas is low (CBDA oscillations) or the CBDA is faulty. 9. If the uplink LED light permanently then: • Disconnect one of the cables from the CBDA connectors and connect a load at the connectors. • If the LED on this amplifier illuminates permanently then the CBDA is faulty (oscillating) and needs replacing. • If the LEDs stops illuminating then the isolation between the donor and remote antennas is low. Either improve the isolation (e.g. increase separation) or reduce CBDA gain. • To reduce gain, reconnect the antenna cables. Reduce the gain at both uplink and downlink path until this LED stops illuminating. Reduce the gain further by 10 dB. This is the maximum usable gain. Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 10 of 16
Diagnostics Guide The CBDA provides long term, carefree operation and requires no periodic maintenance. This section covers possible problems related to the installation environment. Top Cover LED Indications Once the CBDA is installed the red LEDs on the top cover indicate uplink and downlink 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 to the D9 connector at the back of the CBDA. Alarm relay connection to D connector: Pin 2 to 4 open at any fault; short at no fault Pin 2 to 3 short at any fault; open at no fault Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 11 of 16
RF Power Amplifiers LED Indications The LEDs on the power amplifier are set to turn on when the transmitted power has reached or exceeded the specified composite power. Normally the LED at the downlink power amplifier should be on indicating good forward power transmission. The LED on the uplink power amplifier turns on only when a near by mobile is transmitting. Indication Cause Action Downlink LED (on amplifier) does not light Indicates low RF power at downlink path (below AGC setting) Check base antenna connection Check antenna alignment to base. Increase CBDA RF gain. Downlink LED (on amplifier) lights (This is not a fault) Indicates good power 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 turn off Uplink LED (on amplifier) lights all the time Faulty system. Can be quad filter assembly or power amplifier fault System fault. To verify disconnect one RF port to verify. If LED remains on then system is faulty. Excessive intermodulation or spurious Amplifier oscillation caused by insufficient isolation Improve the isolation between the antennas or reduce RF gain. Excessive noise in downlink High input power causing amplifier overload Turn AGC on, or reduce gain so that LED just turns from off to on. Set the same gain for the uplink channel Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 12 of 16
Electrical Specifications Downlink Frequency Range 851 – 869 MHz 935 – 941 MHz Uplink Frequency Range 806 – 824 MHz 896 – 902 MHz Passband Gain @ min attenuation 65 dB nominal Passband Ripple ±1.5 dB typical Output Power AGC Set +24± 1 dBm AGC Selection By ON/OFF Switch AGC Dynamic Range 25 dB typical AGC LED Indication LED turn ON when power reaches AGC Set Power Level. (both at On and Off positions). MGC (Manual Gain Control) Dynamic Range 15 dB min Noise Figure @+25°C and max gain 6.0 dB max 3rd Order Intercept point +44 dBm typical IMD @2 tone @+20 dBm/Carrier 48 dBc typical VSWR 1.5 : 1 max Downlink alarm turn on DL power <15 dBm Power Supply 80 to 240 VAC; 50 to 60 Hz; @500 mA Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 13 of 16
Environmental Conditions The unit is designed for indoor applications: Operating temperature 0°C to + 50°C Storage temperature - 50°C to + 80°C Mechanical Specificatios Size 10.6 x 10 x 6.8 inch approx. (270 x 250 x 172) mm approx.) RF Connectors N-type Female Weight 17.6 Lbs. (8 kg.) approx. RF Exposure Warning In order to satisfy the FCC RF exposure requirements, you must ensure that the installation complies with the following: One antenna is connected via cable that has typical 1~10 dB attenuation (depends on the length of the cable) to the CBDA BASE port. This antenna is installed outdoor and has very sharp beam (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 of the cable) to the CBDA MOBILE port. This type of antenna is omni-directional (isotropic), or wide beam, with 0 to 2 dBi typical gain and is installed and distributes indoor (in buildings, tunnels, basements, park lots, shopping centers etc.). Typical specifications: gain: 2 dBi, VSWR: better than 2:1 , Impedance: 50 ohm. The indoor antenna must be installed to provide a minimum separation distance of 0.2 m (20 cm) from persons within the area. Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 14 of 16
Install this way up with RF connectors facing down Mechanical OutlineDekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 15 of 16
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. The obligations of Dekolink under this warranty shall be limited solely to the repair or exchange or giving credit for, at the option of Dekolink, any Product that may prove defective in accordance with evidence satisfactory to Dekolink. Any repair or replacement of the Product by Dekolink shall not extend the original warranty period. This warranty is exclusive to the original Purchaser and is not assignable. This warranty applies only upon the condition that the Product has been installed, maintained and operated under conditions of normal use. The provisions of this warranty shall not apply if, in Dekolink’s judgment, the Product has been subject to misuse or neglect, damaged in an accident 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’s authorized service center. All shipping and insurance charges are the sole responsibility of Purchaser and are not included in this warranty. Dekolink expressly excludes and disclaims all other warranties, including but not limited to any warranties of merchantability or fitness for a particular purpose. Dekolink shall in no event be liable for any special, indirect, incidental, consequential or punitive damages or for loss, damage, or expense, including loss of use, profits, revenue, or goodwill, directly or indirectly arising from purchaser’s use or inability to use the merchandise, or for loss or destruction of other property or from any other cause, even if Dekolink has been advised of the possibility of such damage. Some states do not allow the exclusion or limitation of incidental or consequential damages so these limitations may not apply under certain circumstances. The liability of Dekolink shall in no event exceed an amount equivalent to the purchase price paid by the purchaser for the defective product. This warranty shall not be extended, altered or varied except by a written instrument duly signed by Dekolink. Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510 Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com; Web site- www.dekolink.com rev 0 11/04 page 16 of 16

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