Dekolink Wireless BDA800BB50W90 Bi-Directional Amplifier User Manual INSTALLATION
Dekolink Wireless Ltd Bi-Directional Amplifier INSTALLATION
Manual
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| Document ID | 347341 |
| Application ID | IaXo4gSQsG1lWnbzYbBAcg== |
| Document Description | Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 38.81kB (485161 bits) |
| Date Submitted | 2003-08-12 00:00:00 |
| Date Available | 2003-08-11 00:00:00 |
| Creation Date | 2003-08-03 12:51:05 |
| Producing Software | Acrobat Distiller 5.0 (Windows) |
| Document Lastmod | 2003-08-03 12:52:07 |
| Document Title | INSTALLATION & |
| Document Creator | Acrobat PDFMaker 5.0 for Word |
| Document Author: | Elisra |
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com INSTALLATION AND OPERATING INSTRUCTIONS FOR HIGH POWER REPEATER MODEL: MW-BDA-800BB-50W90 Page 1 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com TABLE OF CONTENTS PARAGRAPH PAGE No REPEATER OVERVIEW BLOCK DIAGRAM DESCRIPTION REPEATER (BDA) CONNECTION STEP ATTENUATOR & RF GAIN & SETTING AGC FUNCTION BDA MONITOR BDA MONITOR FUNCTIONS BDA INSTALLATION BASE / DONOR ANTENNA INSTALLATION REMOTE / MOBILE SERVICE ANTENNA INSTALLATION ANTENNA ISOLATION INSTALLATION STEPS RF EXPOSURE WARNING 10 ELECTRICAL SPECIFICATIONS 11 MECHANICAL SPECIFICATIONS 11 ENVIRONMENTAL CONDITIONS 11 MECHANICAL LAYOUT 12 MECHANICAL OUTLINE 13 LIMITED WARRANTY 14 LIST OF DRAWINGS DRAWING PAGE No REPEATER(BDA) RF BLOCK DIAGRAM BDA MONITOR BDA MONITOR BLOCK DIAGRAM MECHANICAL LAYOUT 13 MECHANICAL OUTLINE 13 Page 2 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com REPEATER OVERVIEW: The Bi-Directional Repeater assembly provides an exceptional repeater/booster performance to extend the coverage area of radio communications in buildings and RF shielded environments. Features such as high linearity power amplifiers are contributing for the overall improved system linearity performances. The unit is based on a duplexed path configuration, having sharp out of band attenuation for improved isolation between the receiving and transmitting paths. BLOCK DIAGRAM DESCRIPTION: The Repeater Downlink path receives the RF signals from base station, amplifies them and transmits them to the subscriber. The Repeater Uplink path receives the RF signals from the subscriber, amplifies them and transmits them to the base station. Two duplexers frequency separate the signals to the proper amplifying path and isolate the two signals. For each path two amplifiers do the path signal amplification; a low noise amplifier (LNA) and a high power amplifier. The low noise amplifier has a 30 dB step attenuator to set the gain of the specific path. REPEATER (BDA) CONNECTION The RF connection is made via two type “N” female connectors. The RF connector labeled “Base” must be connected to the antenna pointing to the base station; usually a rooftop antenna. The RF connection labeled “Mobile” must be connected to the antenna pointing into the area to be covered by the Repeater such as inside a building or outdoor shaded area. Page 3 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com TO BASE TO MOBILE Power Attenuator PA Monitor LNA Downlink Duplexer Power Monitor PA AGC AGC Duplexer Attenuator LNA Uplink BDA RF BLOCK DIAGRAM STEP ATTENUATOR AND RF GAIN SETTING For proper operation of the Repeater, the isolation between the base station antenna and the mobile antenna should exceed the Repeater gain by at least 12 dB. If the Repeater gain were higher than the isolation between the antennas, oscillation would start and would saturate the amplifier. Isolation few dB higher than the Repeater gain cannot start oscillations but would cause gain ripple in the band. The step attenuator on the low noise amplifier reduces the Repeater gain. The Repeater gain can be stepped down by the amount indicated on the step attenuator. AGC FUNCTION The Repeater has AGC function on both paths that serve to prevent the saturation of the power amplifier. When a high signal is received the AGC circuit detects the amplitude and sends a feedback signal to a variable attenuator, which attenuates the signal level so that the output power of the amplifier does not exceed the preset limit. The green LED on the BDA monitor (AGC Range) illuminates when the power output of the amplifier is within the set limit. An On/Off switch on the connection box enables the AGC function. If the AGC is disabled then the amplifier gives maximum gain. Page 4 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com BDA MONITOR The BDA monitor circuit monitors the following functions: RF power transmitted by the power amplifiers. For the downlink channel a red fault LED illuminates if the power is 10 dB below the specified composite power. In normal use the downlink channel continuously transmits RF signals and this LED should be on. When the donor reception from the base is bad this LED turns on to warn that the repeater is not being used efficiently. Another green LED illuminates when the power reaches or exceeds this power (10W). This is used to set the repeater gain. This limit is the same as the AGC limit and is factory preset. For the uplink channel a green indicator LED illuminates when the power reaches or exceeds its composite power (1W). When the isolation between the antennas is bad this LED lits permanently. This LED should turns on only when a near by cellular is used. This limit is the same as the AGC limit and is factory preset. DC voltage of the channels. The fault LED illuminates when the voltage is below or above the specified limits. DC current to each of the two LNAs and the uplink power amplifier. If the current is below or above the specified limits then a LED illuminates. Page 5 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com BDA MONITOR FUNCTIONS P.S. (Uplink & down link) Illuminates when the Power Supply voltage is below or above its limits. P.AMP. (Uplink) Illuminates when the uplink Power Amplifier current is above or below its specified limits P.AMP. (Downlink) Illuminates when the uplink RF Power is 10 dB below the specified composite power. L.N.A. (Uplink & Downlink) Illuminates when the Low Noise Amplifier current is above or below its specified limits. AGC Range. (Downlink) This green LED on the downlink path illuminates when the transmitted power reaches or exceeds the AGC set power, which is the maximum specified composite power. For best efficient use of repeater RF power this LED should be on. AGC Range. (Uplink) This green LED on the downlink path illuminates when the transmitted power reaches or exceeds the AGC set power, which is the maximum specified composite power. This LED should not lit permanently. It lights only when a nearby mobile is transmitting. The Pushbutton Switch on the BDA monitor turns on all the alarms. This is used to test the alarm functions of the BDA. REMOTE ALARM The BDA monitor has a dry contact relay arms output. These contacts are short circuit at no fault and open circuit at any fault or at power loss. This function can be used to operate a modem for remote alarm warning. The relay contacts are connected to pins A and C (small pins) on the alarm connector at the front panel. Page 6 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com ALARM TEST PUSHBUTTON DOWNLINK BDA MONITOR P.S. P.S. P.AMP. P.AMP. L.N.A. L.N.A. AGC Range AGC Range INPUT SUPPLY DOWNLINK CHANNEL BLOCK DIGRAM RF POWER DETECTION VOLTAGE SENSOR PS ALARM LNA ALARM LNA D.L/ SUPPLY CURRENT SENSOR P.AMP ALARM POWER SENSOR INPUT SUPPLY RF POWER DETECTION 50W LOW POWER ALARM (P.AMP) AGC RANGE INDICATOR HIGH POWER DETECTION (AGC Range) POWER SENSOR RELAY UPLINK CHANNEL Page 7 of 14 UPLINK VOLTAGE SENSOR RELAY ALARM PS ALARM P.AMP ALARM CURRENT SENSOR LNA ALARM CURRENT SENSOR POWER SENSOR AGC RANGE INDICATOR U.L. PA SUPPLY (P.AMP) LNA U.L. SUPPLY HIGH POWER DETECTION (AGC Range) rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com BDA INSTALLTION Install the BDA Repeater in a shielded, ventilated and easy to reach area. Use low loss cables to connect antennas to the BDA. Install the BDA close to the service area to improve output power and noise figure. The BDA Base/Donor connector port is connected to donor antenna, usually a Yagi antenna, while the BDA Mobile/Remote connector port is connected to a mobile antenna; outdoor indoor. BASE / DONOR ANTENNA INSTALLTION 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 site 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 INSTALLTION 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. For safety reasons, a minimum split of 5 antenna is required. ANTENNA ISOLATION For proper operation the isolation between these two antennas must be at least 12 dB higher than the BDA gain. Lower isolation would lead to high in-band ripple. Oscillations will build up when the isolation is lower than BDA gain. The isolation between the antennas is critical for high gain outdoor repeaters. In order 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. Page 8 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com INSTALLATION STEPS 1. Install all antennas and connect them to the BDA inputs. 2. Turn the AGC On. This AGC limits the output power of the BDA. The AGC on the Downlink path guarantees constant downlink power when and if the Donor power changes. 3. Set downlink gain to minimum; uplink gain to minimum. 4. Increase the downlink channel gain till the green LED turns from off to on. This is the best gain setting giving highest usable power. 5. The green LED on the downlink power amplifier will illuminate if adequate donor power has reached the BDA. If the donor power is low the LED will not lit and the BDA usable power is not used efficiently. The red LED will illuminate if the donor power is 10 dB or more below the maximum usable power indicating a fault. 6. Set the uplink gain to the same as the downlink gain. 7. Check that the uplink green LED on the BDA monitor does not lit permanently. This LED would lit permanently If the isolation between antennas is low (BDA oscillations) or the BDA is faulty. In such a case: • Disconnect one of the cables from the BDA connectors and connect a load at the connectors. • If the LED on this amplifier illuminates permanently then the BDA 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 BDA 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. Page 9 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com 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 BDA 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 1 m (100 cm) from persons within the area. The second antenna is connected to the BDA MOBILE port. There are two applications: Outdoor and Indoor. In the case of Outdoor the type of antenna is omnidirectional (isotropic) with 0 to 2 dBi typical gain, or wide beam with up to 8 dBi gain, and is installed on a mast to cover shadowed, outdoor, area. This antenna must be installed to provide a minimum separation distance of 2 m (200 cm) from persons within the area In the case of Indoor coverage the power is split to several, omnidirectional (isotropic) antenna with 0 to 2 dBi typical gain, and distributes to different indoor areas (in building floors, tunnels, basements, parking lots, shopping centers etc.). Typical specifications: gain: 2 dBi, VSWR: better than 2:1 , Impedance: 50 ohm. At least 5 such antenna must be connected to the BDA using cables and splitters. In this case the max. EIRP from each antenna will not exceed 3W so that the minimum required separation distance from persons within the area is 20cm. Less separation is needed if the power is divided into more than 5 antenna covering many floors or areas. Page 10 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com ELECTRICAL SPECIFICATIONS: PARAMETER SPECIFICATIONS Down Link Up Link Frequency Range Gain Pass Band ripple Manual Attenuation Range 880-894 MHz 835-849 MHz 90±4 dB <3 dB p-p 0 to 30dB in 2dB Step Noise Figure Output Power @ 1 dB compression 3rd order intercept point Composite Power Output, max Down Link IMD @ two tone 37dBm each Up Link IMD @ two tone 27dBm each AGC Factory set level (nom.) AGC range Impedance VSWR Rx/Tx Isolation Fault Monitoring Remote Alarm Power Supply ≤ 5dB 50W 62 dBm typ. +40dBm 50 dBc ------------------- 12W 50 dBm typ. +31dBm -------------------44 dBc 40 dBm 15 dB 31 dBm 20 dB 50 Ohms <1.5:1 > 100 dB LED indication for each fault Summarized alarm by dry contact AC 110/220V/50Hz Range: 176~264V, 45~65Hz Option +28 VDC Mechanical Specifications: Size RF Connectors Weight Enclosure Type 400X400X300 mm approx. N-type Female 30 kg. Approx. Weatherproof Enclosure for Wall Mounted Installation Environmental Conditions: -30°C to +50°C ≤ 95% Protected to IP65 Operating temperature Humidity Weatherproof conditions Page 11 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com LAYOUT Page 12 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com MECHANICAL OUTLINE Page 13 of 14 50W rev 3 08/03 Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3-9180-190 e-mail: marketing@dekolink com web www dekolink com 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 authorizerd 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. Page 14 of 14 50W rev 3 08/03
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