Table of Contents GENERAL INFORMATION ......................... 5 About this Manual ..........................5 Warranty ............................. 5 Declaration of Conformity ........................5 PREFACE............................6 Introduction ............................6 Powerful and Versatile Functions ....................... 6 PREPARATION FOR USE ........................7 Safety ..............................7 Introduction ............................. 7 Safety Precautions ...........................
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Sine output coax test ........................27 Pulse output coax test ........................27 Check of two FDA-301 Distribution Amplifiers with fiber in between (coax – fiber – coax) .... 28 Sine input coax test - transmitter unit ..................28 Pulse input coax test – transmitter unit ..................28 Sine output fiber test - transmitter unit ..................
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Sine input fiber test - receiver unit ....................29 Pulse input fiber test - receiver unit ....................29 Sine output coax test - receiver unit ..................... 30 Pulse output coax test - receiver unit ................... 30 PREVENTIVE MAINTENANCE ......................31 Fan Replacement ..........................
1. GENERAL INFORMATION About this Manual This manual contains instructions on how to install and use the FDA-301 Frequency Distribution Amplifier. Warranty The Warranty Statement is part of the folder Important Information that is included with the shipment. Declaration of Conformity The complete text with formal statements concerning product identification, manufacturer and standards used for type testing is available on request.
It gives significantly increased performance compared to traditional Distributors of signals. The FDA-301 offers the following advantages: Multiple signal types: Low noise sine wave (default 10MHz)
3. PREPARATION FOR USE Safety Introduction Please take a few minutes to read through this part of the introductory chapter carefully before plugging the power cable into the wall outlet. This instrument has been designed and tested for Measurement Category I, Pollution Degree 2, in accordance with EN 61010-1:2011 and EN 61326 :2013, increased test levels according to EN 61000-6-2:2008, Group 1, class B, CE.
Check that the shipment is complete and that no damage has occurred during transportation. If the contents are incomplete or damaged, file a claim with the carrier immediately. Also notify your local Pendulum sales or service organization in case repair or replacement may be required.
Supply Voltage Setting The Frequency Distribution Amplifier may be connected to any AC supply with a voltage rating of 90 to 265 Vrms, 45 to 440Hz.The Frequency Distribution Amplifier automatically adjusts itself to the input line voltage. Fuse The secondary supply voltages are electronically protected against overload or short circuit. The primary line voltage side is protected by a fuse located on the power supply unit.
Fold-Down Support For bench-top use, a fold-down support is available for use underneath the counter. Rackmount Adapter – one instrument (Option 22/90) This rackmount adapter can hold any standard Pendulum ½ * 19” unit, like FDA-301, CNT-9x, GSG-5, GSG-6, GPS-12x etc.
If you have ordered the Option 22/90, 19-inch rack-mount kit for one instrument, it has to be assembled after delivery of the instrument. The rackmount kit consists of the following: - 2 brackets, (short, left; long, right) - 4 screws, M5x8 - 4 screws, M6x8 Assembling the Rackmount Kit (Option 22/90) - Turn the device upside down...
Rackmount Adapter – two instruments (Option 22/05) This rackmount adapter can hold any two standard Pendulum ½ * 19” unit, like FDA-301, CNT-9x, GSG-5, GSG-6, GPS-12x etc. If you have ordered the Option 22/05 rack-mount kit for two instruments, it has to be also assembled after delivery of the instrument.
Assembling the Rackmount Kit (Option 22/05) - Turn the devices upside down - Remove the rubber feet in the plastic stand - Loosen the screws underneath the rubber feet - Remove the plastic stands - Remove the four decorative plugs that cover the screw holes on the right and left side of the front panel.
The operation of the Frequency Distribution Amplifier is extremely simple. There are no settings controls whatsoever on the FDA-301, not even a power switch. The operation is truly plug-and-play. Just plug in the FDA-301 to the mains power, and connect your input source – coax or fiber – to the relevant input connector.
The Power indicators show the status of the power supplies. If DC power supply option is not installed, that LED is always Red If LED’s are turned off/black, there is no power supplied to the FDA-301. Note that the Input Status indicators do not evaluate the quality of the input signals, only the amplitude.
The default sine frequency is 10 MHz, but FDA-301 could be modified to distribute other common reference frequencies instead, from 200 kHz up to 40 MHz. Please contact Pendulum Instrument about desired frequency, before ordering.
Power supply redundancy with auto-changeover When the DC power supply option, Option 49, is installed and connected to +24V, the FDA-301 is set- up for automatic change-over of the power source. Normally, the internal secondary power voltages are generated from the AC supply, but in the case of a power line failure, the DC supply option automatically takes over.
Configuration examples There are no parameters to be configured or set. The FDA-301 can be used in many distribution situations. For example: Local Coax distribution (coax in – coax out) to up to 12 users (1 FDA-unit) Remote Coax distribution (coax in/fiber out – fiber in/coax out) to up to 216 users (multiple...
F: Remote distribution of E1 clock & data, 9 sites, 54 users 54 users receive each 1x 2.048 MHz and 1x 2.048 Mbps 3 fiber (E1 clock and data) output slots used in 1 transmitter FDA-301 3 coax (E1 clock and data) output slots used in 9 receiver FDA-301...
All BNC-ports are referenced to FDA-301 chassis at delivery. There are insulation washers supplied with each FDA-301, to insulate the BNC connector housing from the chassis. All BNC ports can be individually configured to be insulated. Both the input ports and the output...
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Add one of the insulation washers delivered with the FDA- 301. The insulation washer must be mounted closest to the panel. Reassemble the washers and the nut as in the picture. Use gentle force while tightening the nut.
– An optical power meter – Short optical multimode fiber cable with ST-connectors, 2-5 meter Power On test Connect the power plug to the rear panel of FDA-301 (No input signals connected) Verify that the AC power diode goes green, and the fan starts...
Verify that sine signal diode goes green Pulse input coax test Connect output signal from pulse generator to pulse input of the FDA-301 unit Set 1Hz frequency, duty cycle 50%, amplitude 5Vpp, Hi-level 5V, Low-level 0V on pulse generator Verify...
Sine output coax test Connect output signal from signal generator to sine input of the FDA-301 unit Connect signal from the FDA-301 sine coax output module to input of the Oscilloscope (Use 50Ω termination) Set 10MHz frequency and amplitude 1Vrms sine signal on signal generator Verify using oscilloscope that the amplitude is 1Vrms ±10% (Vpp = 2.8V ±10%), and that the...
Pulse input coax test – transmitter unit Connect output signal from Pulse generator to pulse input of the FDA-301 unit Set 1 Hz frequency, duty cycle 50%, amplitude 5Vpp, Hi-level 5V, Low-level 0V on pulse...
Sine output fiber test - transmitter unit Connect the output of the Signal generator to the Sine input of the transmitter FDA-301 unit Connect the signal from the Sine Fiber output module of the FDA-301 transmitter to the input of the optical power meter...
Connect the signal from the Sine Fiber output module of the FDA-301 transmitter to the sine fiber input of the FDA-301 receiver, using a short optical cable (2-5 meters). Connect signal from the sine coax output module of the FDA-301 receiver to the input of the Oscilloscope (Use 50Ω termination)
(Chapter 5) to verify that the unit is free from HW faults. Fan Replacement The FDA-301 contains a fan with an expected life time of 5 years with continuous 24h/day operation. We recommend replacing the fan every 3 years to maintain continuous high reliability. For part-time applications and low ambient temperatures, an extended service interval is acceptable.
Fiber type: Multimode fiber, 62.5/125µm or 50/125µm Frequency for sine input: 10MHz (default); for other frequencies, contact factory Connection fiber from and FDA-301 output to another FDA-301 input: Max. optical attenuation: 6dB (including fiber and all connectors and splices) Max. distance: 2km...
Coax output E1 (2.048 MHz Clock and 2.048 Mbps Data) Connectors: BNC female Impedance: 75 Ohm nominal Output voltage: ±1.2V ±10% in 75 ohm; acc. to ITU-T G703 Time of Day (ToD) Output Connector: Mini Din 6 pins Female: Output voltage levels: Low level is -5V nom.; High level is +5V nom.
8. SERVICE Sales and Service office For additional product information, customer support and service, please contact your local Pendulum distributor, or Pendulum Instruments directly at the following address: USA: Pendulum Instruments 50 Woodside Plaza # 642 Redwood City, CA 94061...