Dekolink Wireless FBDASMR850WD Fiber-Optic Distribution System User Manual System Description

Dekolink Wireless Ltd Fiber-Optic Distribution System System Description

Contents

User Manual System Description

Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com INSTALLATION AND OPERATION INSTRUCTIONS FOR FiberLink BI-DIRECTIONAL AMPLIFIER WITH DIVERSITY MW-FBDA-SMR8-50W-DIV rev3 08/03 Page 1 of 17 Dekolink Wireless Proprietary and Confidential Information. Copying, Distribution, and Disclosurprohibited without Express Authorization from Dekolink Wireless Company. e are This document is protected by all applicable copyright laws.
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com TABLE OF CONTENTS Para No. Paragraph Page No. 1. OVERVIEW 3 2. COMPONENT DESCRIPTION 5 2.1 DUPLEXER 5 2.2 UPLINK AMPLIFIER 5 2.3 50 WATT DOWNLINK POWER AMPLIFIER 5 2.4 FIBEROPTIC TO RF TRANSCEIVER 5 2.5 RFIBER TRANSMITTER 7 2.6 MONITOR UNIT 7 2.7 POWER DISTRIBUTION UNIT 10 2.8 POWER SUPPLY 10 3 SPECIFICATIONS 11 3.1 RF SECTION SPECIFICATIONS 11 3.2 FBDA ALARM SPECIFICATIONS 12 3.3 MECHANICAL SPECIFICATIONS 12 3.4 ENVIRONMENTAL CONDITIONS 12 4 RF EXPOSURE WARNING 13 DEKOLINK WIRELESS LIMITED WARRANTY 17 LIST OF FIGURES Fig No. Fig. Name Page No. 1 FBDA RF BLOCK DIAGRAM 4 2 RFIBER FRONT PANEL 6 3 RFIBER REAR PANEL 6 4 MONITOR OUTLINE 8 5 FIBERLINK ALARM BLOCK DIAGRAM 9 6 FBDA SYSTEM BLOCK DIAGRAM 14 7 MECHANICAL LAYOUT 15 8 MECHANICAL OUTLINE 16 rev3 08/03 Page 2 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com 1. OVERVIEW: The FBDA is an interface unit between optical signals carrying RF information, and RF antennas covering a defined user area. The system consists of uplink path and downlink path and an additional uplink path for diversity. The uplink path receives RF signals from the Mobile antenna amplifies them and the Rfiber+ converts them to optical signals. These optical signals are sent to the BTS. The downlink path receives optical signals from the BTS to the Rfiber+, converts them to RF signals and amplifies these signals using a high power amplifier. The Mobile antenna transmits these RF signals. A duplexing filter separates the frequencies of uplink path from the downlink path enabling the use of the same antenna for receiving and transmitting. The FBDA provides about 46 dB RF GAIN in both directions. Both optical signals for Uplink and Downlink are carried on a single fiber using WDM. The Rfiber+ RF output power is aligned to 0 dBm for proper operation. Downlink gain can be adjusted using a step attenuator for required output power. Uplink gain can be adjusted by 16 dB continuous trim pot on the uplink pre amplifier. The downlink path uses a 50 Watt power amplifier while the uplink uses an AGC pre-amplifier to drive the uplink F/O transmitter. The AGC is set to 0 dBm, which is the max power permitted by the F/O transmitter. For diversity reasons there is an additional Uplink path consisting of Cavity band pass filter, AGC pre-amplifier, and Fiber optic transmitter. The optical signal of this path is transferred via an additional fiber to the base station. rev3 08/03 Page 3 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com Fig. 1 : FBDA RF BLOCK DIAGRAM OpticalFiberDownlink / UplinkFiberopticTransmitterFiberopticReceiverDuplexerRXStepAttenuatorTXUP LINKAMPVariableAttenuatorDown link PowerAmplifierAGCUplink(diversity)FiberopticTransmitterUP LINKAMPVariableAttenuatorAGCFilterRx1WDMOpticalFiberTO BTS rev3 08/03 Page 4 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com 2. COMPONENTS DESCRIPTION: 2.1 DUPLEXER(x2) The duplexer serves to frequency separate uplink signals from downlink signals. The duplexer has sharp out of band attenuation for better isolation between the receiving and transmitting paths and for better rejection of interfering signal in the air. In the Diversity path only the Rx part of the duplexer is used. 2.2 UPLINK PRE-AMPLIFIER(both Rx pathes) The uplink pre-amplifier is a low noise, 45dB gain unit. The amplifier contains AGC control circuitry. When a high power signal is received the automatic level control detects it and reduces the gain so that the output power of the amplifier is constant. The AGC function limits the signal at the Fiberoptic transmitter input when high power signals are received while keeping high gain when low power signals are received. The LED on the amplifier illuminates when the power output of the amplifier exceeds the AGC power set limit (when the AGC is either ON or OFF). The Switch on the RF amplifier enables the AGC function. If the AGC is disabled then the amplifier gives maximum gain for any input. The AGC level is factory set to 0 dBm and AGC is set to ON, to prevent high power damage at the Rfiber+ input. 2.3 50 WATT DOWNLINK POWER AMPLIFIER This is the downlink power amplifier. It can drive 40 dBm composite power to the mobile antenna. A thermostat attached to this amplifier turns on TEMP alarm when the temperature exceeds 80° C. 2.4 Fiberoptic to RF transceiver The RFiber+TM product is a transceiver that includes a transmitter and receiver unit. The transmitter converts the RF signals into light wave signals, which are then sent over fiberoptic cables. The receiver converts light wave signals back to RF The model in use is a wide band product in the 0.08-2 GHz frequency range and it includes a WDM module to enable use of one fiber for Tx and Rx signals. rev3 08/03 Page 5 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com The RFiber+TM main features are: 1. Protocol transparency; i.e. any standard can be faithfully transmitted. 2. An optional serial port (RS232) is installed into each unit. This port allows data communication over the same fiberoptic cable. 3. Max. input RF power for normal operation – 0dBm. 4. Manual Gain Control is standard in receiver to compensate for optical loss across the fiber. The following drawings show sample front and rear panels of the RFiber+TM unit (for WDM model there is only one optical in/out port). Fig. 2 : - RFiber+TM Front Panel Fig. 3 : - RFiber+TM Rear Panel On the Front Panel of the RFiber+TM unit (Fig 2.) are three LEDs. The LEDs should be on when the unit is in use. The following table describes the LEDs. rev3 08/03 Page 6 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com LED Name LED Function LD When ON - Indicates optical output power is within product specifications. PD When ON - Indicates optical power received is above 0.1mW. DC Indicates when the power is on. The “Gain” trimmer on the front panel is used to adjust signal level at the RF out of the Rfiber+, especialy for optical loss compensation of the optical fiber. 2.5 Rfiber transmitter. This is a fiber optic transmitter for Diversity path. Practically it is the transmit part of Rfiber+ in a separate box. 2.6 MONITOR UNIT The FBDA monitor performs the following functions: a) Monitors the DC supply voltage of the FBDA. The fault LED illuminates when the voltage is beyond the specified limits. b) Monitors the current to each active element and the internal fan. If the current is below or above the specified limits then a LED illuminates. c) Monitor the optical receive signal using alarm output of the optical transceiver. d) Monitors the Thermostat for high temperature alarm. e) Provides automatic alarm function. Whenever any fault occurs or when the power supply voltage is under it’s limit, the unit sends summarized alarm signal to the base station via the Fiberoptic transmitter data port. e) Provides self test for the alarm functions. The pushbutton switch on the Monitor unit turns on all the alarm LEDs and initiates the summarized alarm. rev3 08/03 Page 7 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com Fig 4.: MONITOR OUTLINE ELISRABDA MONITORHI. TEMPRfiber DCUPLINK A.OPT. ALRP.S.DIV A..PWR AMPFANFault list: P.S. : power supply fault FAN : Fan PWR. AMP : Downlink 50W AMP DIV A : Diversity PATH RFIBR DC : Rfibr dc current UPLINK A .: Uplink amp OPT. ALR .: Optical link alarm HI. TEMP .: High temperature alarm rev3 08/03 Page 8 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com VOLTAGESENSORDOWN LINKP.A.ALARM DIV A.CURRENTSENSORALARMCURRENTSENSORALARMCURRENTSENSORALARMFANVOLTAGESENSORUPLINK AMP.ALARMRFIBERCURRENTSENSORALARMCURRENTSENSORALARMOPTICALSENSORRF ALARM UNITFIBER OPTIC TRANSCEIVERSUMMERIZEDALARMRELAYSUMMERIZEDALARM FIBER OPTICTRANSMITTER SERIALDATA INPUTOPTICAL FIBER LINKTO BASEFig 5.: FIBER LINK ALARMSBLOCK DIAGRAMDC INDC INLOGICSENSOROPTICALALARMTHERMOSTATHIGH TEMP.OPTICAL ALARMrev3 08/03 Page 9 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com 2.7 POWER DISTRIBUTION UNIT The power distribution unit acts as DC connection panel. It receives power from the power supply and distributes it to the FBDA units. It contains the following functions: - Fuse and for the DC power coming from the AC power supply. - Current sampler for the high power 50 Watt amplifier. - distribution strip for various units. 2.8 POWER SUPPLY This is a high efficiency switching power supply providing +28 VDC for the 50W amplifier, and a +13.5 VDC for other units. rev3 08/03 Page 10 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com 3 SPECIFICATIONS: 3.1 RF SECTION SPECIFICATIONS Uplink (RX, Rx1) Downlink (TX) Frequency Range 806-824 MHz 851-869 MHz Passband Gain @ min attenuation 46 dB Nominal Passband Ripple ± 1.0 dB typical Noise Figure @+25°C (optical loss less than 3 dB) 6.0 dB max @ max gain N.A. Manual Attenuation Range 0 to 16 dB continuous 30 dB in 2 db steps Down-Link Output Composite Power ----------------- +40 dBm typ. Down-Link 3rd Order Intermodulation Products @two tones +37 dBm each at Output --------------- 50 dBc min Up-Link AGC Range 30 dB typ ----------------- Power Output at AGC Setting (Factory Set) 0 ± 1 dBm ----------------- Up-Link 3rd Order Intermodulation Products @two tones -3 dBm each at F/O Transmitter Input 55 dBc typical --------------- Impedance Level 50 Ohms VSWR 1.5 : 1 max rev3 08/03 Page 11 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com 3.2 FBDA ALARM SPECIFICATIONS Remote Fault Indication (Summarized alarm) Relay Contact open for any fault. Relay closed for no fault. Alarm is sent on the serial data link of the FO transmitter Fault List : Power Supply Over-voltage or Under-voltage Uplink Amplifier Over Current or Under Current Downlink Power Amplifier Over Current or Under Current FO Transceiver Over Current or Under Current FO Receiver Power fall (Bad Optical Connection) Fan Over Current or Under Current High temperature Electrical Fault Indication LED Illuminated LED on Monitor Box for each Electrical Fault Fiber Optic Connection Fault Indication LED Illuminated LED on FO Transceiver when Optical Connection is performing Correctly. LED is OFF when FO Receiver Power falls. 3.3 MECHANICAL SPECIFICATIONS: Size : 400 x 400 x 300 mm approx. RF Connectors : N-type Female Weight : 30 kg. Approx. Enclosure Type : Weather proof Enclosure for Wall Mounted Installation(IP66). Power Supply : 100 to 220 VAC / 2A 3.4 ENVIRONMENTAL CONDITIONS: 6.1 Operating temperature : - 20°C to + 50°C 6.2 Storage temperature : - 30°C to + 70°C rev3 08/03 Page 12 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com 4. RF EXPOSURE WARNING In order to satisfy the FCC RF exposure requirements, you must ensure that the installation complies with the following: The antenna is connected via cable that has typical 1~10 dB attenuation (depends on the length of the cable) to the FBDA 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 3 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 1 m (100 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. rev3 08/03 Page 13 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com FBDA SYSTEM BLOCK DIAGRAMMobile ANT.BTSHighpwrATTN.30 dBTxRxF/O+WDMRF INRF Outoptical in/outoptical inF/O+WDMoptical in/outoptical OutFBDARFsectionFBIUFIBEROPTIC CABLERUN UP TO 20Km ATTN.30 dB(MAX. 0dBm)F/OF/ORF Out ATTN.30 dBRx1ATTNrev3 08/03 Page 14 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com Fig. 7:MECHANICAL LAYOUT rev3 08/03 Page 15 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 e-mail: marketing@dekolink.com web www.dekolink.com Fig. 8: MECHANICAL OUTLINE rev3 08/03 Page 16 of 17
Dekolink WIRELESS Ltd. 16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510 Tel- 972-3-9180-180 Fax-972-3- 190-9180 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 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. rev3 08/03 Page 17 of 17

Navigation menu