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This trainer has been designed with a view to provide practical and experimental knowledge of a general circuit of advanced digital transmission using Fiber Optic Cable a SINGLE P.C.B of size 14 "x 11”.

FEATURES
1. All components must be soldered on hollow tags of 0.25" diameter height of 0.4" on the front side of
SINGLE PCB.
2. The complete circuit diagram must be screen printed on component side of the PCB with circuit and parts at the same place.
3. The circuit must be printed in section wise in multicolor.
4. The true value of component must be printed on component side.
5. The PCB with components on front side must be fitted in elegant wooden box having lock and key arrangement .
6. The acrylic cover must be fitted on PCB to safeguard parts. It should have holes for alignment and repair.
7 The testing points must be provided with 1.25" tags to connect CRO probe
8. The manual with complete true circuit with multicolored true measured waveforms must be provided with the trainers.
9. All Trainers should be operated on 230V AC mains and must be self-contained unit.
SPECIFICATIONS
1. Power supply requirement : 230V AC, 50 Hz.
2. Built in IC based power supply.
3. On Board AF signal generator - Sine wave
Frequency Range : 300 Hz to 3.4 KHz
Amplitude : 0 to 5 Vpp.
4. On Board Modulating Digital Data signal generator to generate any binary input word with Bit clock &
Word clock.Word Length : 8 Bits.
Word Clock Frequency : 8 KHz to 12 KHz.
Data Format : NRZ & Bipolar NRZ
5. Transmission Source : Fiber Optic LED - 660 nm
6. Receiver Source : Fiber Optic Avalanche Photo diode (APD).
7. Modulation : PCM/PSK
8. All parts are soldered on single pin TAGS on single PCB of size 14" x 11" with complete circuit diagram screen printed.
9. Standard Accessories : 1. A Training Manual.
2. Connecting Patch cords.
3. Fiber Optic Cable - 1 mtr
10. Other Accessories :
a. Fiber Optic Continuity Tester (850nm) - 1 No.
b. Fiber Optic Power Meter (850nm) - 1 No
c. Fiber Optic Power Light Source (660nm) - 1 No.
EXPERIMENTS:
1. To transmit PCM/PSK digital frequency signal through Fiber optic LED.
2. To receive PCM/PSK digital frequency signal through photo diode detector.
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