User's Manual

ManualsBrandsFiber-Span ManualsElectronics800 MHz CHANNELIZED BDA

FS51C Channelized BDA Product Series

User Manual

FS51C-85-USR

Part of Fiber-Span’s FS51C Series family of products

Summary of content (23 pages)

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FS51C Channelized BDA Product Series User Manual FS51C-85-USR Part of Fiber-Span’s FS51C Series family of products
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FS51C-85-USR User Manual Ver.
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FS51C-85-USR User Manual Ver. B Table of Contents 1 2 3 Company Info.......................................................................................................... 5 Product Intro ........................................................................................................... 5 Description .............................................................................................................. 6 3.1 3.2 3.3 4 Theory of Operation ................................................
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FS51C-85-USR User Manual Ver. B 1 Company Info Fiber-Span is a premier provider of advanced RF ON FIBER ® technologies and solutions for fiber optic based transmission of high fidelity radio-frequency wireless voice, data and multiservice networking applications.
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FS51C-85-USR User Manual Ver. B 3 Description The most popular configuration (but not limited to) is an 8 Channel Bi-Directional Amplifier, consisting of 8 Uplink and 8 Downlink Channelized amplifier configurations. A combination of a Trunked Channel System (TCS) and Broadband (BB) can be implemented to accommodate your needs and budget. Each Trunked Channel Card (TCC) is “Field Programmable” to allow for on the fly frequency setting, sensitivity and threshold change.
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FS51C-85-USR User Manual Ver. B radiating cable or the CA. DUPLEXER CONFIGURATION: UPLINK BA: The antenna port of the duplexer is connected to the “Off the Air” antenna. The duplexer transmit port (low band) is connected to the uplink RF power amplifier output port. The duplexer receive port (high band) is externally cabled to the downlink BA’s LNA/8 way splitter for processing of the downlink signals.
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FS51C-85-USR User Manual Ver. B MICRO CONTROLLER (MC): The controller performs 4 functions: • Programs the TCC module synthesizer to the desired frequency and monitors lock detect for fault detection. • Monitors the carrier detects, RSSI KEY, and generates the key line function. • Performs the key line time out and delay functions, the time-out timer. • Interface to the operator.
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FS51C-85-USR User Manual Ver.
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FS51C-85-USR User Manual Ver. B 4.2 UHF Available products sold for UHF frequency bands. 4.3 800 Available products sold for 800 frequency bands. This user manual covers the 800 MHz band. 5 Detailed Description This section deals with the components (variations) that are assembled to make up the Channelized BDA main subassemblies: 5.1 Uplink Hardware 1. One 1 x 8 Way RF Splitter (SPL) 2. Eight Trunked Channel Cards (TCC) inside Card Cage w/ 12 Volt Power Supply 3. One 1 x 8 Way RF Combiner (CBR) 4.
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FS51C-85-USR User Manual Ver. B Figure 2 6.2 After Signal Conditioning Figure 3 graph displays the Normalized RF Signals conditioned by the TCC cards. All the channel frequencies are present at the “Common” RF Combiner port. RF Signals will then be transported to the RF Input of the Power Amp where they will be amplified at the desired Automatic Level Control (ALC).
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FS51C-85-USR User Manual Ver. B 7 Cautionary Notes WARNINGS: 1) TCC Cards are Not Hot Swappable. Turn Off Card Cage prior to removing or installing card(s). 2) Confirm RF levels do not exceed unit capability prior to connecting. 3) All RF ports must be properly terminated prior to applying power to the external equipment. 4) Always connect the RF Outputs of a unit first then connect the RF Inputs. 5) Unused RF ports should be terminated with 50 ohms.
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FS51C-85-USR User Manual Ver. B 9.1 Connectorization The Channelized is supplied with an N-female (see Figure 4) connector on all the main port(s). Between the “RF Splitter”, “TCC Cluster” and “ RF Combiner” the RF connections are “SMAfemale” It is recommended that a 3 ft jumper cable is used in a (S) shape as a strain relief to connect the main TX and RX ports to the coaxial cable going into the “Non Fiber-Span equipment”. This will avoid the likelihood of the RF port to strip.
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FS51C-85-USR User Manual Ver. B A Class A Channelized BDA is limited to an RF Output Power of 5 Watts Composite. Calculating Composite Output Power. The PA has a Variable Control circuitry that is set to 5 Watts composite at the “Factory”. Ideal input RF Level to a PA with a RF Gain of 60 dB is (-) 30 dBm per Channel. For a popular 8 Channelized BDA the composite output power is calculated as follows: Equation 3: LOG Total Channels multiply by equals RF Power to PA increase by 8 10 = 9.
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FS51C-85-USR User Manual Ver. B Cable Low Band Signal to produce full output dBm AGC Control Range (Uplink & Downlink) dB Duty Cycle -- RF Spurious Output, less than 800 MHz, but greater than 1GHz dBc RF Spurious Output for frequencies ranging from 800-1000 MHz dBc System Noise Figure dB Input/ Output VSWR -- -90 80 Continuous -60 -85 9 10 1.35:1 11.1.
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FS51C-85-USR User Manual Ver. B VAC Input Power 95 – 132 VAC, 45‐64 Hz Power Amp AC Supply Protection PA Cooling Cluster Cooling Fuse, 1A, 3AG, 250V, Slow‐Blo Rear Exhaust Fan Air Convection 11.1.
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FS51C-85-USR User Manual Ver.
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FS51C-85-USR User Manual Ver. B 13 Troubleshooting Problem 1: No RF Output Signal from the Power Amp. Solution 1a: Confirm Input and Output RF cable into the Power Amp are not kinked or broken. Solution 1b: Check the “Enable” alarm wire harness from the TCC Card Cage is wired to the rear of the Power Amp alarm input. Problem 2: No RF signal level output from the RF Combiner.
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FS51C-85-USR User Manual Ver. B 4. 3 RF cables (1 meter length), N-female to N-female. Match one end connector to the equipment you are using. 5. Software 13.2 One-Channel (Path) Ch-BDA Block Diagram Figure 5 shows 1 Channel path mapping to assist problematic TCC card and the associated products within the Cluster and PA. Figure 5 Reference Points Description RF Level(s) range Units (RP1) Main RF Input to the Cluster RF Splitter. Confirm reference signal present.
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FS51C-85-USR User Manual Ver. B Figure 6 Figure 6 illustrates an 8 Channel BDA with the Test Equipment Setup (TES). Most analyzers can accept a 20dBm composite RF input signal level. However, Fiber-Span recommends verifying the specifications of your analyzer prior to connecting it to the PA Output port. Set the signal generator and spectrum analyzer to the center frequency of the downlink or uplink frequency spectrum. Set the RF output level of the signal generator to -80dBm.
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FS51C-85-USR User Manual Ver. B When all of the Cluster section functions properly, confirm all the RF cables are not faulty that interface and route the path in question. 14 FCC Required Statement 14.1 Manufacturer Notes “Changes or modifications not expressly approved by the manufacturer could “Void” the user’s authority to operate the equipment”. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
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FS51C-85-USR User Manual Ver. B 15 Glossary The following is a list of abbreviations and terms used throughout this document.
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FS51C-85-USR User Manual Ver. B 16 Warranty Information The RRU carries a standard warranty period of one (1) year unless otherwise indicated on the shipping package or noted in the purchase order agreement. 16.1 Warranty Limitations The warranty is limited to the repair or replacement of the defective product. Fiber-Span will decide which remedy to provide for defective components at its own discretion.